Taxes for Business in Poland: How to Protect Your Business from Tax Audits

To avoid fines and unnecessary expenses, you need to know how to conduct business in Poland properly. It's simple: comply with the law, file reports on time, pay taxes, keep documents, and don't hide income. In this article, you'll learn how to legally conduct business in Poland and avoid problems with the tax authorities. We'll cover step-by-step: the most common mistakes that lead to audits, the mandatory taxes and reports, how tax optimization works, and what actions raise suspicions from regulatory authorities. This will help you understand the rules and protect your business.

Create your own business in Poland and start earning money legally.

Why are some companies subject to audits and others not?

Tax audits in Poland most often target those with discrepancies in their reports, errors in their tax returns, suspicious partners, or problems with social security. The administration (KAS) uses digital algorithms to select those audited. This isn't random—it's systematic.

This is what the tax authorities pay attention to:

  • Errors or delays in JPK declarations (digital VAT and accounting reporting).
  • Discrepancies between income tax and account transactions.
  • Frequent data adjustments.
  • Cooperation with "fly-by-night" companies.
  • Low tax rate on high income.
  • Work in risky sectors: e-commerce, services, construction contractors.

Example: In 2023, the number of audits of small businesses in the online sales sector increased by 18%. This is due to the widespread use of lump-sum forms, lack of documentation, and errors in corporate taxation.

How to reduce the risk of a tax audit

1. Keep your accounting records error-free and on time

Every figure on the tax return must match. If you submit a tax return with an error, the algorithm will notice it.

  • Use reliable accounting software (e.g. Optima, Comarch ERP).
  • Check each submitted form: JPK_VAT, JPK_KR, ZUS declarations.
  • Make advance payments on time—this affects your overall risk rating.

2. Check your counterparties

Before signing the contract, check:

  • NIP, number in the EU VAT register.
  • Presence on the VAT white list (Biała Lista).
  • Reality of the address and registration of the company (via KRS).

Why this is important: If your partner doesn't pay their taxes, the IRS may come after you, even if you haven't violated any laws.

3. Document all transactions

To confirm that the service took place, more than one act is needed. Save:

  • Correspondence.
  • Confirmation of transfer.
  • Photos, screenshots, files.

Penalties for incorrect tax assessments often occur when there is no evidence that the transaction is genuine.

4. Prepare for digital innovations

Poland will soon introduce e-Faktura—a centralized system for all invoices. If you're not prepared, the tax authorities will spot every error. It's best to transition to electronic document management now.

What to do if the audit has already begun

What types of checks are there?

There are 3 types of checks in Poland:

  • Kontrola podatkowa — classic inspection with a visit.
  • Czynności sprawdzające — clarification of declaration data.
  • Postępowanie podatkowe — full-fledged tax proceedings.

You need to understand the format of your audit. This affects the timeframe and responsibilities.

How to behave

  • Do not ignore letters from KAS.
  • Prepare documents in advance: declarations, acts, contracts, bank statements.
  • Engage an accountant or tax consultant - they will know how to protect you.

Important: The tax office has clear deadlines and formats. You can protect your rights. Sometimes it's worth filing an objection or complaint.

Common mistakes that lead to fines

  • You sign the contract but do not collect other evidence.
  • Submitting your tax return late.
  • You don't keep track of changes in tax schedules or rates.
  • You work with counterparties that cannot be found in the registers.
  • Don't know how to correctly calculate business tax or corporate tax (CIT).

Should you contact a tax consultant?

If you're unsure how to calculate ZUS social contributions or which tax system to choose (for example, a lump-sum tax or the general system), it's best to play it safe. A mistake will cost more than a consultation.

A lawyer or consultant will help:

  • Check documents before submitting.
  • Communicate with the tax office.
  • Reduce the fine or appeal the additional charges.

Conclusion: How to do business in Poland correctly and legally

How to legally conduct business in Poland? Meet deadlines, check documents and contractors, and don't skimp on accounting. Understanding how business taxation works helps avoid unnecessary problems.

If you do business in Poland, paying taxes is not only an obligation but also a risk. Keep up with your documentation and follow the rules, and even tax audits in Poland will be a breeze.

Create your own business in Poland and start earning money legally.

Frequently Asked Questions

How often are tax audits conducted in Poland?

For small and medium-sized businesses, this is less common, but if mistakes are repeated or there are suspicious counterparties, the chances increase.

Are companies audited using the simplified system?

Yes. Especially if a lump-sum tax is applied and the turnover is high.

Is it possible to reduce the tax burden legally?

Yes, it's called tax optimization. But you need to comply with the law. For example, you can choose a favorable taxation system, manage expenses wisely, or operate through an sp. z oo.

What taxes must an entrepreneur pay in Poland?

Typically it is:

  • Business Income Tax (PIT).
  • Corporate Tax (CIT) – for companies.
  • Social contributions ZUS.
  • VAT.
  • Advance payments on income.

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