Corporate Tax Compliance

The increasing complexity of Polish and international tax regulations, combined with frequent changes in tax law, means that even well-functioning finance departments require specialist support, including comprehensive as well as ad hoc tax advice in this area.

As part of the CIT service, the RSM Poland Compliance team actively assists both domestic and international entities in implementing necessary solutions and supports businesses in meeting their ongoing tax obligations by ensuring compliance, minimising tax risk and safeguarding their tax settlements.

Why you should consider CIT compliance services

By providing professional tax advisory services in the area of Corporate Tax Compliance, we deliver assistance covering all key aspects of corporate income tax settlements. We help businesses correctly determine the taxable base, calculate tax liabilities, prepare tax returns, and fulfil reporting obligations arising under CIT regulations.

Our tax advisory services include both ongoing support throughout the tax year and assistance with annual tax reporting obligations. When required, we also assist clients undergoing measures of control and tax audits and represent companies before tax authorities.

What Corporate Tax Compliance services include

Within our specialised Corporate Tax Compliance offering, we support clients in particular through:

How RSM tax advisors provide Tax Compliance services

To ensure that outsourcing tax compliance delivers maximum benefits to any company operating in Poland – enabling not only accurate calculation of tax liabilities but also supporting tax cost optimisation – it is essential to thoroughly understand the client’s business.

Each CIT settlement begins with gaining insight into the nature of the client’s operations and identifying areas that may materially affect the entity’s tax position. For this purpose, we use a detailed tax questionnaire which helps structure the information gathering process and flag events requiring in depth analysis.

Depending on the nature of the business and the types of transactions involved, we also rely on dedicated tools and templates that support the analysis of selected tax issues. This structured approach enables us to efficiently collect necessary data, identify potential exposure and ensure high quality in the tax calculations we prepare.

Our established work methodology and standardised processes allow us to maintain consistency across analyses, manage information received from clients effectively and focus on areas requiring individual expert assessment. Our goal is not only to deliver accurate CIT settlements but also to provide clients with a transparent cooperation process and a sense of comfort in meeting their tax obligations.

The most common challenges in CIT compliance

As experts specialising in servicing Polish and international companies, with extensive experience in delivering Tax Compliance for both large and small entities, we realise that corporate income tax settlements involve numerous areas that, in practice, raise interpretative doubts and may lead to tax risks. This stems from the convoluted tax regulations, dynamic changes in legislation and the varying approaches of various authorities towards tax reporting.

One of the key challenges remains the correct qualification of tax-deductible costs – including the identification of expenditures that may not constitute tax costs or require thorough analysis to determine the business rationale. Equally important is the proper timing of revenue recognition, especially in transactions with complex structures or long execution cycles.

In practice, when preparing annual tax returns, businesses often face the need to correctly account for unusual or one-off economic events, which are not always clearly addressed in tax regulations. An additional challenge is the growing number of documentation requirements and the need to ensure consistency between tax settlements and financial accounting. A significant area of risk within Tax Compliance also includes cross-border transactions which require consideration of both Polish tax regulations as well as those applicable in other jurisdictions. In such cases, experience in minimising tax risk, enabling correct interpretation of regulations and their practical application, becomes particularly important.

All these factors make it clear that effective CIT calculation and reporting require not only up-to-date tax knowledge but also continuous monitoring of legislative changes and awareness of current tax authority practices.

Why accurate and timely fulfilment of CIT obligations is so important

Corporate income tax is one of the areas most frequently subject to legislative changes and detailed scrutiny by Polish tax authorities. 

Correct recognition of taxable revenues and deductible costs, proper treatment of atypical transactions and consideration of the current approach of tax authorities may therefore have a significant impact on a company’s overall tax risk profile.

Even seemingly minor irregularities may result in the need to file corrections, provide additional explanations to tax authorities or engage in disputes arising from improper settlement of tax liabilities. For this reason, more and more businesses choose to outsource their tax compliance processes and rely on ongoing support from tax experts – including monitoring regulatory changes and ensuring the accuracy of CIT settlements.

Benefits of specialist tax compliance services provided by RSM Poland

Entrusting CIT related obligations to specialists enables more effective tax risk management and enhances the organisation’s overall security. Our experts support clients in calculating tax liabilities, interpreting regulations, verifying complex tax returns, identifying potential exposure and implementing solutions tailored to the specifics of their business.

Cooperation within Corporate Tax Compliance also reduces the workload of internal finance and accounting teams, allowing them to focus on their core business responsibilities instead of handling tax accounting processes. Clients gain access to the expertise of tax professionals, ongoing support in tax settlements, and confidence that their tax obligations are fulfilled on time and in accordance with applicable regulations.

Key benefits of outsourcing CIT Compliance:

We understand that tax advisory requires an individual approach

The scope of support provided as part of professional tax compliance services is always tailored to the scale of operations and the client’s specific needs. The service may therefore range from assistance with selected tax obligations to comprehensive outsourcing of all CIT-related processes.

Thanks to the offered flexibility and the experience gained from partnering with both large and small businesses operating in various economic sectors, we help clients navigate the ever-changing tax environment and effectively mitigate risks associated with CIT.

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