Q&A: CIT Compliance

Corporate income tax (CIT) is primarily paid by legal entities, in particular limited liability companies, joint-stock companies, and simple joint-stock companies. CIT is also paid by certain organisational units, including limited partnerships and selected general partnerships that meet the conditions set out in the Polish CIT Act as well as foundations, associations, and other entities specified in the regulations.

Correct identification of a CIT payer's status is crucial for proper settlement of taxes. It determines the method of taxation, the scope of reporting obligations, the type of returns to be filed, and eligibility for tax incentives, such as the reduced 9% CIT rate, exemptions, or credits.

In practical terms, the taxpayer’s status should be verified not only at the start of the operations, but also with any changes in the organisation, restructuring or conversion processes, and changes in the ownership. Incorrect classification of the entity may lead to misstatements in tax returns, back taxes, and an increased risk of disputes with tax authorities.

The default CIT rate is 19%. The reduced 9% CIT rate may be paid by small taxpayers and taxpayers who start their business, provided that they meet the conditions set out in the CIT Act. The reduced rate is charged only to income other than capital gains.

To accurately calculate the tax, it is essential to recognise the status of a small taxpayer and to track the amount of revenue generated during the tax year on an ongoing basis. Erroneous application of the 9% rate may result in an understatement of the tax liability and require filing amended tax returns.

In practice, the application of the reduced CIT rate may also be limited by the regulations governing business restructuring, conversions, divisions, or in-kind contributions of an undertaking or its organised part. Therefore, before applying the 9% rate, it is worth analysing, on a case-by-case basis, not only the amount of revenue, but also the history and structure of the taxpayer’s operations.

To properly account for CIT, it is first necessary to recognise revenue, deductible expenses, and necessary tax adjustments in an adequate manner, and second to match economic events to appropriate accounting periods. It is also vital to correctly establish the tax year, which sets out the period for reporting income or loss, the deadlines for submitting tax returns, and tax calculation rules. 

A good starting point is to review the accounting records and analyse the events that might have an impact on the tax result. Special attention should be paid to differences between the accounting and tax results, the accounting treatment of fixed assets and depreciation, provisions, write-downs and allowances for receivables, foreign exchange differences, and transactions with related entities. 

In practice, the accuracy of CIT calculations also depends on the quality of source data and coopertion between the finance, accounting, tax, and operations departments. Verification of the accounts on a regular basis before the end of the tax year helps to reduce the risk of misstatements, necessary adjustments to be made, and disputes with tax authorities.

The first step in calculating CIT is to determine the gross financial result on the basis of the accounts. Then, it is necessary to identify all differences between the accounting and tax results, and assess their impact on the tax base.

The next step involves analysing taxable revenue and deductible expenses as well as verifying permanent and temporary differences. The calculation should also include the accounting treatment of fixed assets and depreciation, provisions, write-downs and allowances for receivables, foreign exchange differences, debt financing costs, and transactions with related entities.

After assessing the taxable income or loss, any applicable deductions, exemptions, or tax credits should be accounted for. After that, it is necessary to calculate the due tax at the applicable CIT rate and prepare the tax return.

The final, but particularly important, step is to verify the accuracy of the entire calculation. The review of the filings helps to reduce the risk of errors, back taxes, and the necessity to submit amended returns in the future. Here, the CIT Compliance service can be a great support in identifying any misstatements before concluding the filing process.

As a general rule, CIT payers are required to make advance income tax payments during the tax year. The advances are usually paid on a monthly basis, although some taxpayers, in particular small taxpayers and taxpayers who start their business, may opt for a quarterly payment scheme.

The amount of the advance payments is determined on the basis of the income earned since the beginning of the tax year. It means that the taxpayer is required to calculate their cumulative income, calculate due tax, and then deduct from it the total of the advance payments made for previous periods. This way, the advance payments reflect the actual financial performance of the company.

By this approach, companies with variable financial performance have the possibility to adjust their tax burden to their actual economic situation. At the same time, taxpayers have to regularly keep track of their revenues and expenses as well as to calculate their taxable income on an ongoing basis.

It allows the taxpayer to pay a fixed amount of the CIT advance throughout the tax year, calculated on the basis of the income declared in the tax returns for previous years. It means that the amount of the payments does not depend on current financial performance, but on historical tax data.

This solution may be beneficial for businesses that generate stable income and wish to simplify their day-to-day tax accounting. Fixed amounts of advance payments make it easier to plan cash flows ahead and reduce the burden associated with calculating taxable income on a monthly basis.

Nevertheless, it is important to remember to file the statutory CIT return after the end of the tax year. If the total amount of the advance payments is lower than the final tax liability, the taxpayer will be required to pay the difference. An overpayment, in turn, may be accounted for in accordance with the rules laid down in tax law.

Yes. A tax loss may be set off against income earned in subsequent tax years, in accordance with the rules laid down in the law. It is possible to deduct part of the loss one time up to the statutory limit or to roll over the loss to reduce the tax impact gradually in several subsequent years. As a general rule, a tax loss may be carried over to five consecutive tax years following the year in which it was incurred. Within this period, the loss can be deducted in a single instalment up to a maximum of PLN 5 million, and the remainder can be carried forward to subsequent years, subject to the limits set out in the CIT Act. In principle, a maximum of 50% of the loss may be deducted in one year, unless the taxpayer takes advantage of the one-time deduction of up to PLN 5 million.

It is always advisable to keep track of the time limits and the amount of the loss that has not been deducted, as the possibility to set off the loss in other periods than those prescribed will be excluded.

The research and development (R&D) tax relief allows for further reduction of the tax base by certain expenses related to research and development activities. These may include salaries of staff involved in R&D projects, materials, raw materials, or certain services, among other expenses. An important aspect is to correctly identify R&D activities and to properly document the incurred eligible expenses.

In many cases, yes. Taxpayers can claim various tax reliefs if they meet the conditions provided for each one. However, they must pay attention to the limitations with respect to making double claims of the same expenses and to the special conditions arising from the regulations. Before claiming multiple incentives at the same time, one should analyse their correlations in order to correctly determine the value of the deductions that can be claimed.

The CIT Compliance service is addressed to both medium-sized enterprises and large groups that wish to minimise their tax risk and make sure that their CIT affairs are safe and sound. Regular CIT Compliance review is highly beneficial for multinational companies, enterprises entering into transactions with related entities, and companies with a considerable number of differences between the accounting and tax results.

CIT Compliance is highly recommended for:

• medium-sized enterprises whose tax affairs are becoming increasingly complex as their operations scale up
• groups carrying out numerous intercompany transactions
• enterprises that enter into transactions with related entities and are subject to transfer pricing obligations
• companies with numerous accounting and tax differences related to revenues, expenses, depreciation and amortisation, provisions, write-downs and allowances for receivables, and foreign exchange differences, among other things
• companies undergoing reorganisation or restructuring, or operating under conditions of strong growth
• enterprises wishing to increase their level of tax compliance and reduce the risk of their tax returns being challenged by tax authorities

In addition to finding potential misstatements, a regular review of tax affairs makes it possible to identify such tax measures and incentives which have not been applied before. In practice, this often creates an opportunity to claim tax deductions, exemptions, or other benefits made available by the regulations, which can result in a lower tax bill and enhanced tax efficiency of the company.

CIT Compliance is a comprehensive review of corporate income tax affairs, which makes it possible to identify potential errors before the CIT return is filed. The most common ones are found in the recognition of taxable income, deductible expense claims, accounting treatment of foreign exchange differences, provisions, write-downs and allowances for receivables, adjustments to sales and purchase documents, and transactions with related entities.

A regular review of accounts as part of CIT Compliance helps to reduce the risk of back taxes, filing amended tax returns, and disputes with tax authorities. It also makes it possible to verify whether the management of tax affairs is in compliance with applicable regulations and the practice of tax authorities, identify areas for improvement, and implement measures aiming at minimising future tax risks.

Other benefits include enhancement of the transparency of the tax processes within the organisation and better preparation of the company for potential checks, audits, or proceedings conducted by tax authorities.

Tax authorities most often focus on areas that have a direct impact on the tax base and the amount of CIT due. The most commonly verified items are:

• recognition of taxable income
• deductible expense claims
• recognition of provisions, write-downs, and allowances for receivables
• depreciation of fixed assets and amortisation of intangible assets
• debt financing costs, including settlement of interest and the limitations arising from Article 15c of the CIT Act
• transactions with related entities and transfer pricing
• intangible services purchased from related parties
• transactions with foreign entities
• tax reliefs, exemptions, and incentives
• supporting documentation for tax returns

In practical terms, tax authorities verify not only the CIT calculation itself, but also the quality of documentation and the validity of the adopted tax approach. The CIT Compliance service makes it possible to identify potential tax risks early, help the company to better prepare for potential tax audits, and highlight the areas for which tax optimisation and tax incentives are available in accordance with applicable law.

Preparing relevant documentation before the tax year-end close facilitates accurate CIT calculation and reduces the risk of errors, necessary adjustments, and disputes with tax authorities. It is a good practice to start before the end of the fiscal year, so as to identify areas requiring further analysis appropriately beforehand.

Special attention should be paid to the following:

• documentation relating to material revenue and expenses
• breakdown of differences between the accounting and tax results
• records of fixed assets, depreciation and amortization, and capital expenditure
• agreements and supporting documentation relating to debt financing
• records of provisions, write-downs, allowances for receivables, and accruals
• transfer pricing documentation and records of transactions with related entities
• documents confirming eligibility for tax reliefs, exemptions, and incentives
• supporting documentation for tax loss carryforward calculations

Before closing the year, it is also worth checking that the source documents are complete, that the settlements are well-based, and that the approach adopted complies with the applicable tax legislation. Such a review makes it possible to identify any risks at an early stage and better prepare the company for the tax filing and potential tax audits.

The most common errors include: recognising costs relating to several tax years as a single entry, incorrect settlement of invoices received after the end of the year, absence of documentation confirming the timing of the incurrence of expenses, and incorrect settlement of transactions with related entities.

Before the end of the tax year, it is a good practice to review expenses, verify long-term contracts, check the completeness of documents, and confirm that transactions with related entities comply with the requirements of transfer pricing regulations. Such an analysis helps to reduce the risk of necessary adjustments and disputes with tax authorities.

Temporary and permanent differences arise as a result of different rules governing the recognition of revenues and expenses for accounting and tax purposes. Temporary differences arise when a particular event is recognised for both accounting and tax purposes, but in different periods. Permanent differences relate to items that have an impact only on the financial result or only on the tax result and will not be settled in the future.

The most common temporary differences include interest accrued but not paid, provisions, write-downs, allowances for receivables, foreign exchange differences, and different depreciation rules. Permanent differences may relate to expenses which are non-tax deductible or tax-exempt revenues. Correct identification of these differences is essential to accurately determine the CIT base and calculate due tax.

The accounting and tax results are governed by different regulations and serve different purposes. Therefore, in practice, differences between these results are very likely to arise. The accounting result is calculated in accordance with accounting regulations and its purpose is to reflect the actual financial position of the enterprise. The tax result constitutes the basis for calculating CIT and is determined in accordance with the CIT Act.

Differences arise primarily from different rules of recognising revenue and expenses, different timing of their recognition, and items that are treated differently for accounting and tax purposes. It means that the same economic event may be treated differently in terms of timing and value in the accounting records than in the tax returns.

The most common differences may be found in such areas as:

• provisions and accruals
• allowances for receivables and asset write-downs
• depreciation and amortisation for accounting and tax purposes
• foreign exchange differences
• interest and debt financing costs
• gratuitous benefits
• write-off of liabilities
• dividends and subsidies
• revenue adjustments
• asset sale
• transactions with related entities

Differences between the accounting and tax results have a direct impact on the amount of CIT. Incorrect identification of these items may lead to tax miscalculations, the obligation to submit amended returns, and an increased risk during tax audits. Therefore, companies should regularly analyse both temporary and permanent differences between their financial result and taxable income.

A thorough analysis of revenues and expenses for accounting and tax purposes helps to precisely determine the CIT base, reduce tax risk, and ensure compliance with applicable regulations. Such an approach is particularly useful for companies whose financial statements are audited and for businesses with complex tax affairs.

Interest is a common source of accounting-tax revenue differences. For accounting purposes, interest can be recognised on an accrual basis, i.e. when charged, regardless of the time of actual payment. However, under the CIT Act, interest revenue is generally recognised at the time it is received, which results in temporary differences between the accounting result and the tax result. Correct identification and settlement of interest is essential to precisely determine the CIT base and ensure compliance with applicable regulations.

Foreign exchange differences arise as a result of fluctuations in currency exchange rates and may have an impact on both the financial result and the CIT base. Foreign exchange losses arise when, due to exchange rate differences, the value of payables increases or the value of receivables decreases, resulting in an economic loss. 

Foreign exchange differences for accounting purposes include gains and losses which are both realised and unrealised, the latter arising from measurement of assets and liabilities as at the balance sheet date. Foreign exchange differences for tax purposes are calculated in accordance with the CIT Act and have a direct impact on the amount of taxable income or deductible expenses. 

Foreign exchange differences are also distinguished according to the timing of their recognition: realisation exchange differences, which arise upon the actual settlement of receivables or payables, and revaluation exchange differences, which arise from translations of foreign currency items as at the balance sheet date. As accounting and tax regulations provide for different rules of determining and recognising exchange differences, their value may often differ between the accounting and tax results.

Some businesses take advantage of the possibility to recognise foreign exchange differences for tax purposes on the basis of the accounting regulations, in accordance with Article 9b(1)(2) of the CIT Act. In such a case, the method of recognising foreign exchange differences for tax purposes is similar to the accounting treatment, which may reduce the number of differences between the accounting and tax results.

The above are the reasons why foreign exchange differences are among the most common sources of discrepancies between the accounting and tax results. Failure to account for them in a proper manner may lead to CIT miscalculations. Therefore, foreign currency transactions require special attention when preparing tax returns.

Gratuitous benefits may constitute taxable income if the taxpayer receives a measurable financial benefit without having to incur any costs or provide any consideration in return. It covers, among other things, free of charge use of real estate, fixed assets, services, and property rights provided by other entities. Under the CIT Act, the value of a gratuitous benefit should be recognised, in principle, as taxable income and declared accordingly in the tax returns. Correct identification of gratuitous benefits is crucial for determining the CIT base, otherwise, it may lead to miscalculations and an increased tax risk during audits.

As a general rule, debt cancellation results in taxable income being generated for CIT purposes. If a taxpayer's total or partial debt is forgiven, the value of the written-off liability may be treated as taxable income. It arises from the fact that the taxpayer derives a measurable financial benefit by reducing their liabilities without having to incur any expenses. However, it should be noted that in certain situations, the CIT Act provides for exceptions and specific treatment. Therefore, each debt cancellation operation requires an individual analysis in terms of taxation.

Not always. Even though, as a general rule, a received dividend constitutes taxable income, the CIT Act provides for a number of exemptions which may exclude the dividend from taxable amount. In particular, it applies to dividends received by certain companies from other companies, provided that specific requirements regarding the shareholding level and period, among other things, are met. In practice, accurate assessment of the tax implications of dividends requires an analysis of the ownership structure and the status of the entities involved in the transaction as well as compliance with formal requirements. For this reason, each dividend should be verified to ensure that an exemption from CIT can be applied and that it is recognised accurately in tax filings. In addition, the receipt of dividends is often subject to tax withheld abroad, and in certain cases, it can be deductible from the tax due in Poland.

A received dividend can be exempt from CIT if the conditions set out in the CIT Act are met. This exemption typically applies to dividends paid between companies based in Poland or in other Member States of the European Union or the European Economic Area.

As a general rule, the exemption can apply if:

• The recipient of the dividend is a CIT payer whose total income is taxable.
• The recipient holds directly a minimum of 10% of the shares in the company which pays out the dividend.
• The required shareholding is, or will be, held continuously for a period of at least two years.
• The other formal requirements laid down in tax legislation are met.

Prior to claiming the exemption, it is worth analysing, on a case-by-case basis, the ownership structure, the tax status of the entities involved in the transaction, and compliance with the documentation requirements. Claiming the exemption where not supposed to may lead to incorrect CIT assessment, the necessity to file an amended tax return, and back taxes.

The treatment of grants and subsidies for CIT purposes is conditional on the nature of the aid and the purpose for which the funds were allocated. Some of them constitute taxable income, while others may be exempt from tax. In order to account for a grant or subsidy in a proper manner, it is necessary to conduct an analysis of the conditions for granting, the source of funding, and the earmarking of the funds. It is particularly important to determine whether the received aid is used for running the day-to-day operations of the enterprise or for financing the acquisition or production of fixed assets and intangible assets.

In practical terms, grants and subsidies may have an impact not only on the timing and amount of taxable income, but also on the method of accounting for deductible expenses, including depreciation of the assets funded by the received aid. Improper treatment of a grant or subsidy may lead to incorrect assessment of the tax base and the necessity to file an amended CIT return.

Revenue adjustments may have an impact on the amount of the CIT base and the timing of the recognition of taxable income. Their treatment is conditional primarily on the reason for the adjustment. Depending on the circumstances, the adjustment may be recognised at the moment it is made or allocated to the period in which the revenue was originally accounted for. It is particularly important to determine whether the adjustment is due to an error or is made as a result of events that occurred after the invoice was issued or the revenue was accounted for. Proper treatment of adjustments helps to reduce the risk of tax errors and ensure compliance with applicable regulations.

Not necessarily. As divergent rules for determining revenue and expenses relating to asset sale are set out in accounting and tax laws, the tax result and accounting result may show different values. In particular, it applies to the sale of fixed assets, intangible assets, and shares. The differences may arise, among other things, from divergent rules of determining the initial value of the assets, depreciation, earlier write-downs, and also specific tax regulations concerning certain categories of assets. Consequently, the profit or loss as shown in the accounts will not always correspond to the tax profit or loss declared in the CIT filings.

Correct identification of the tax implications of such transactions is crucial for proper CIT assessment and establishment of the tax base.

There are different rules governing the treatment of expenses for accounting and tax purposes. The former are subject to accounting regulations and their purpose is to reflect the actual course of the operations and the financial situation of the company. The latter are recognised in accordance with the CIT Act and have an impact on the amount of the tax base.

In practice, it means that expenses posted in the accounts will not always be deductible for CIT purposes or may be recognised at a different point in time. For this reason, the analysis of differences between the accounting and tax treatment of expenses is one of the key elements of CIT Compliance and helps to reduce the risk of tax filing mistakes.

The accounting-tax difference in the treatment of expenses most typically concern provisions, write-downs, allowances for receivables, depreciation and amortisation, debt financing, entertainment expenses, and expenses that are not classified as deductible in accordance with CIT regulations. Differences can be also often found in lease, foreign exchange differences, employee benefits, and transactions with related entities.

Since accounting and tax regulations provide for divergent rules of recognising certain expenses, the financial result reported in the financial statements may differ significantly from the tax result. A regular review of these areas as part of CIT Compliance helps to correctly establish the tax base and reduce the risk of tax authorities challenging the tax returns.

Not always. For accounting purposes, salaries are generally recognised in the period to which they relate, even if not yet paid. However, the CIT regulations set out specific rules regarding the timing of the treatment of unpaid salaries as deductible expenses. In practical terms, it means that there might be accounting-tax differences in the timing of the recognition of salaries. If they are paid past the statutory or contractual deadline, they will be expensed for tax purposes only at the time of actual payment. This leads to a temporary difference between the accounting and tax results which has an impact on CIT calculation.

Unpaid salaries are among the most common differences between the accounting and tax results taken into consideration as part of CIT compliance.

Social security contributions are not always treated as deductible expenses at the moment they are charged. For accounting purposes, social security contributions can be recognised as soon as they arise. However, CIT regulations provide for specific rules regarding the timing of the recognition of the contributions by the employer. If they are not paid in accordance with the statutory requirements, accounting-tax differences in the treatment of these expenses may arise. Therefore, the timing of the payment of social security contributions is a key element of CIT Compliance.

Yes. As a general rule, bonuses and employee benefits can be treated as deductible expenses. In practice, however, it is crucial to precisely determine the timing of their recognition for tax purposes. For accounting purposes, these expenses are often recognised on an accrual basis, while the moment of their recognition as deductible expenses for CIT purposes may be set out in specific tax laws. It covers annual bonuses, incentive schemes, private healthcare, sports membership cards, and other employee benefits, among other things. Verification of these expenses makes it possible to correctly determine the timing of their recognition and helps to reduce the risk of CIT filing mistakes.

Provisions and write-downs may have an impact on CIT, but their tax implications often vary from the accounting treatment of these items.

In accounting terms, provisions and write-downs are recognised to reflect anticipated risks, liabilities, or asset impairment, all of this having impact on the financial result of the company. However, as a general rule, they are not treated as deductible expenses for CIT purposes, unless it is explicitly provided for in the regulations.

Consequently, the values shown in the accounts may differ from those reported in income tax filings. In particular, it applies to provisions and write-downs on receivables, inventory, and other assets, were accounting-tax differences in the timing of the recognition arise, leading to discrepancies between the accounting and tax results.

A thorough analysis of provisions and write-downs is a key element of CIT calculation and the CIT Compliance process. It helps to precisely determine the tax base, reduce the risk of tax filing mistakes, and ensure compliance with applicable regulations.

In accounting terms, allowances for receivables are recognised when there is a risk that the client will not settle their dues. They are used to show the actual value of receivables in the financial statements. However, for CIT purposes, the establishment of an allowance alone is not treated as a deductible expense. To be recognised as such, an allowance for receivable must fulfil the conditions set out in tax legislation, which includes the provision of a proof of the irrecoverability or high likelihood of non-payment of the receivable. As such, allowances for receivables are among the most common reasons for differences between the accounting and tax results, and they need to be analysed as part of CIT Compliance.

Interest may be treated as a deductible expense for CIT purposes only when it is actually paid, capitalised, or settled in the manner prescribed by tax legislation. The accrual and posting of interest alone do not constitute grounds for recognising it as a deductible expense.

Interest is usually treated as a deductible expense when:

• It was actually paid to the creditor.
• It was capitalised and added to the principal value.
• It is used in the business activity and serves to generate, maintain, or secure a source of income.

However, it should be noted that the possibility to treat interest as a deductible expense may be subject to additional conditions. In particular, it involves debt financing costs which are subject to the limit set out in Article 15c of the CIT Act. In the case of finance lease, these limitations may also apply to the interest component of lease instalments.

In practical terms, interest is among the most common sources of differences between the accounting result and the tax result. The reason is that in line with the accrual method, interest for accounting purposes is typically recognised at an earlier date than for tax purposes. Therefore, it is essential to determine the correct timing of the recognition of the interest in order to calculate CIT and reduce the risk of tax errors.

Debt financing costs are expenses which are associated with repayable finance, received and used by the taxpayer, e.g. credit, loans, bonds, or finance lease. These include, in particular, interest, commissions, fees, the interest component of lease instalments, and other costs economically related to the debt. Article 15c of the CIT Act stipulates a limit on the possibility of treating excess debt financing costs as deductible expenses. As a general rule, an excess of debt financing costs of up to PLN 3 million or 30% of tax-EBITDA, whichever is higher, may be claimed as deductible by the taxpayer. Any amount exceeding the applicable limit is not deductible in a given year, but may be carried forward to subsequent tax years in accordance with the statutory rules.

Note: Debt financing costs cases have been the subject of numerous tax rulings and court judgments. Therefore, it is worth analysing each taxpayer’s situation on a case-by-case basis.

Yes, as a general rule, in the case of finance lease, the interest component of lease instalments is treated as a debt financing cost. It means that, when calculating the limit set out in Article 15c of the CIT Act, the interest component of lease payments must be also included. The situation may be different in the case of operating lease, where lease payments are not split into principal and interest components for tax purposes.

It depends on the nature of the expenditure. If the purpose is to advertise the company or its products, or to build business relationships in the customary manner, the expense may be treated as deductible. Conversely, entertainment expenses, used to develop the brand image of the company, cannot be claimed as deductible.

As regards gifts and giveaways, it needs to be established whether they have advertising and promotional features (e.g. gadgets bearing a company logo) or are purely representational. Each expense requires an assessment of the purpose and circumstances of its spending.

The purpose of advertising expenses is to promote the company, its products or services, and to boost sales. As a general rule, such expenses can be deductible.

Entertainment expenses serve to build a positive upmarket image of the company, for example by holding prestigious events or providing generous hospitality. Such expenses are non-deductible.

Sponsorship may be treated as a deductible expense provided that it has an equivalent function, i.e. the sponsor receives a measurable promotional or advertising benefit in return for the financing. Otherwise, the expense may be treated as a donation, which is generally non-deductible.

As a general rule, donations and social expenditure are not treated as deductible expenses. Likewise, expenses not related to the business activity cannot reduce the tax base. It should be remembered, however, that some donations, in spite of the fact that they do not reduce the tax base, can be deductible from income under the rules laid down in the CIT Act. Some examples include certain donations made for public benefit, religious worship, or professional training, provided that the statutory requirements are met.

In each case, it is necessary to assess the purpose of the expense and how it is used to generate, maintain, or secure a source of income.

Not always. The possibility of treating contractual penalties and damages as deductible expenses is conditional on their nature and the reason for the spending. For example, tax laws preclude claiming certain contractual penalties and damages relating to defects in goods, works, or services, and delays in repairing such defects as deductible expenses. Other contractual penalties and damages may be treated as deductible expenses if they are related to the business activity and were incurred to generate, maintain, or secure a source of income. Each expense requires an analysis of the circumstances and business justification for its spending.

Fines, penalty notices, financial penalties, and administrative sanctions imposed by government authorities are generally not treated as deductible expenses. Likewise, interest on tax arrears may not reduce the tax base. On the other hand, received damages are taxable in most cases, unless a specific exemption is provided for in the law. Correct identification of the tax implications requires an analysis, on a case-by-case basis, of the nature of the performance and the regulations applicable in each case.

Expenditure on intangible services, such as advisory, legal, accounting, or IT services, may be claimed as deductible, provided that the services were actually delivered and that the expenses are related to the business activity and are properly documented. An invoice alone may be insufficient. In practice, it is also recommended to keep contracts, reports, analyses, acceptance certificates, communications, or other documents confirming the scope and actual delivery of the services. The more intangible the nature of a service, the more important it is to keep reliable documentation confirming its delivery and business purpose.

An adjustment to deductible expenses may increase their value (upward adjustment) or decrease it (downward adjustment). In practice, it is often made due to received rebates or discounts in the purchase price, returns of goods, or changes to the terms and conditions of the transaction. Its treatment is conditional primarily on the reason for the adjustment. If the adjustment is not due to an accounting error or an obvious mistake, as a general rule, it is recognised at the moment it is made. It is always advisable to analyse the underlying document for the adjustment and the circumstances on the basis of which the value of the original expense was changed.

Not all expenses can be deducted in one payment. If a particular expense is related to a period of more than one tax year, and it is not possible to determine exactly which parts of the expense correspond to specific years, the expense should be allocated proportionately to the length of the period to which it relates.

Examples include fees for multi-year licences, subscriptions, insurance policies, or maintenance contracts concluded for several years. Correct allocation of expenses to corresponding periods is essential to calculate the tax result correctly and to reduce the risk of tax authorities disputing the tax filings.

The fact of receiving an invoice in the year subsequent to the year in which the expense was incurred does not automatically translate to allocating the expense to the former year. The timing of the incurrence of the expense in accordance with tax legislation and the nature of the expense itself are of particular importance.

In practice, it is necessary to determine the period to which the expense relates and the time when its recognition for tax purposes became obligatory. In some cases, it may be necessary to allocate the expense to the year to which it relates even if the source document was received at a later date. Therefore, it is worth analysing each such situation on a case-by-case basis, taking into account the documentation and the circumstances of the transaction.

The method of accounting for cars for CIT purposes depends on its ownership and how it is used. In the case of operating lease, deductible expenses generally can be claimed on lease instalments and the initial fee. In the case of finance lease, depreciation and the interest components of lease instalments are treated as deductible expenses. Car rental expenses can be also deductible. 

However, it should be noted that the regulations impose certain restrictions on claiming expenses related to cars, such as the value of the vehicle and the manner of its use.

Car running expenses – such as fuel, maintenance, repairs, spare parts, parking fees, and insurance – can also be claimed as deductible, provided they are related to the business activity. If a car is used for both business and private purposes, only a portion of the expenses is deductible. As a general rule, only cars used exclusively for business purposes and which meet the required documentation criteria are eligible for full expense deduction.

Accounting depreciation is governed by accounting regulations and is used to reflect the actual useful life of an asset. Tax depreciation is applied in accordance with the CIT and PIT laws, which specify depreciation amounts and rules, among other things.

Consequently, depreciation amounts for accounting and tax purposes may be different, causing temporary differences between the financial result and taxable income.

Some taxpayers can also claim immediate expensing, which allows for a single deduction of the value of certain fixed assets instead of expensing them over time. This solution is available subject to the conditions set out in tax legislation.

Expenditure on a fixed asset must be each time assessed in terms of its nature. Repair consists in restoring the asset to its original technical state and, as a general rule, it can be recognised as a deductible expense at the time it is incurred.

Expenditure on asset improvement is treated differently. If the improvement expenses result in a higher value in use of the asset – for example, through modernisation, expansion, or enhancement of the functionality of the asset – they increase the initial value of the asset. In such a case, the improvement is not expensed directly for tax purposes, but is depreciated in time.

Clear distinction between repairs and improvements is crucial for CIT calculation, as it has an impact on the timing of the recognition of deductible expenses and the amount of the tax base.

Asset sale generates taxable income in the amount of the sale price received. As a general rule, taxpayers also have the possibility to claim the undepreciated portion of the initial value of the sold asset as a deductible expense.

Asset disposal can also carry tax implications. The possibility to treat the undepreciated value of the asset as a deductible expense depends primarily on the reason for the disposal and on meeting the conditions set out in the tax legislation.

Proper identification of the tax implications of asset sale and disposal helps to correctly assess taxable income and reduce the risk of tax filing mistakes.

Transactions with related entities are subject to close scrutiny by tax authorities, as they should be carried out on terms that would be also acceptable to independent parties. If the prices or other transaction terms deviate from market benchmarks, the tax authorities may challenge the taxable amount and necessitate adjustments to the taxable income or CIT base. That is why it is important for taxpayers to pay special attention to setting transfer prices appropriately and to conform to the obligation to prepare transfer pricing documentation. A thorough analysis of transactions with related entities helps to reduce the risk of tax errors and ensure compliance with applicable regulations.

Transactions with related entities require careful consideration, as they must be carried out on market terms, in accordance with the arm’s length principle. In particular, it applies to intangible services, management services, and licence fees. The taxpayer should be able to demonstrate that the services were actually provided, yielded an economic benefit, and were priced on an arm's length basis. 

In many cases, it is also necessary to comply with transfer pricing obligations and prepare relevant documentation. In addition, following the end of the tax year, it may be necessary to make transfer pricing adjustments if the actual results deviate from the pricing assumptions. Proper record-keeping and regular verification of tax affairs mitigate the risk of disputes with tax authorities and reassessment of income.