Running a business in Poland comes with numerous tax obligations, and meeting them on time is key to avoiding financial penalties. Every business owner must know the exact payment dates for income taxes, VAT and ZUS (Social Insurance Institution) contributions, because late settlements can lead to severe penalties and interest. The Polish tax system sets different deadlines depending on the taxation method, the size of the business and the type of activity.
Current tax rules require business owners to monitor their calendar of obligations systematically, because payment deadlines are fixed and not negotiable. Whether you run a JDG (sole proprietorship) or manage a larger company, you must remember regular settlements with the tax office (urząd skarbowy) and ZUS. Proper financial planning and meeting tax obligations on time are the basis for the stable operation of any business.
Since January 2020 all tax liabilities for VAT, PIT (personal income tax) and CIT (corporate income tax) have been paid into an individual tax micro-account (mikrorachunek podatkowy). The account number is permanent and does not change when the competent tax office changes. Each business owner receives a unique micro-account number, which makes it easier to identify payments
Basic tax settlement deadlines
Business owners in Poland must meet various tax obligations, with deadlines depending on the chosen taxation method and on whether they are registered as VAT taxpayers. The tax system provides for monthly or quarterly settlements, which allows the payment frequency to be adapted to the nature of the business. Knowing all the deadlines is essential, because any late payment automatically results in late-payment interest.
Basic tax settlements cover personal income tax, VAT and social insurance contributions. Each of these areas has its own specific deadlines, which must be strictly observed. If the last day of a deadline falls on a Saturday or a statutory public holiday, the deadline ends on the next business day (Article 12 § 5 of the Tax Ordinance Act (Ordynacja podatkowa)) – the calendar below takes these shifts in 2026 into account.
| Deadline in 2026 | Obligation | Notes |
|---|---|---|
| 20 January (Tuesday) | PIT advances and ryczałt for December or Q4 2025, ZUS contributions for December (JDG) | CIT advances for December – also by 20 January |
| 26 January (Monday) | JPK_V7M / JPK_V7K and VAT for December or Q4 2025, VAT-UE | 25 January is a Sunday |
| 2 February (Monday) | PIT-11, PIT-4R and PIT-8AR for 2025 to the tax office | 31 January is a Saturday |
| 1 February and 1 April | Mandatory KSeF: from 1 February businesses with 2024 sales above PLN 200 million, from 1 April all others | Until the end of 2026 an exception for invoices up to PLN 10,000 a month and invoices from cash registers |
| 2 March (Monday) | PIT-11 for employees and contractors | 28 February is a Saturday |
| 31 March (Tuesday) | CIT-8 for 2025 and CIT balance payment | Where the tax year is the calendar year |
| 30 April (Thursday) | PIT-36, PIT-36L, PIT-28, PIT-37, PIT-38, PIT-39 for 2025 and tax balance payment | Returns can be filed from 15 February |
| 20 May (Wednesday) | Annual settlement of the health insurance contribution for 2025 | In the ZUS documents for April |
| Every month | ZUS 5th/15th/20th, PIT and CIT advances 20th, JPK_V7 and VAT 25th | Shifts include: 27 April, 22 June, 27 July, 21 September, 26 October, 21 and 28 December |
The tax card (karta podatkowa) requires payment by the 7th of the month for the previous month, and for December – by 28 December. Since 2022 it cannot be chosen for the first time – it is used only by taxpayers who paid it on 31 December 2021 and have not given it up (Article 25 section 1 point 1 of the Act on flat-rate income tax)
Income tax payment deadlines
Personal income tax for individuals running a business can be settled under various taxation methods, each with its own payment deadlines. The most popular are the flat 19% tax (podatek liniowy), the tax scale (12% and 32%) and the flat-rate tax on recorded revenue (ryczałt). The deadlines for monthly advance payments are the same for these three methods – by the 20th of the month following the month the advance relates to, and for December by 20 January.
Taxpayers on the tax card have the shortest payment deadline – by the 7th of the following month. Since 2022, however, new business owners cannot choose this taxation method; it is continued only by people who used it at the end of 2021, for example in some craft services. The choice of taxation method has a significant impact on how cash flows are organised in the business.
- Prepare the documentation of revenue and costs for the month
- Calculate the income tax advance according to your chosen taxation method
- Remember that PIT advances are not declared every month – they are shown only in the annual tax return
- Pay the amount due into your tax micro-account before the deadline
- Keep the payment confirmation as proof of timely settlement
Ryczałt, the flat tax and the tax scale require payment by the 20th of the month for the previous month. Business owners who settle quarterly (under the tax scale and flat tax – small taxpayers and those starting a business; under ryczałt – those starting a business and businesses with revenue of up to EUR 200,000 in the previous year) pay advances by the 20th of the month following the quarter, and for Q4 – by 20 January
VAT settlements and their deadlines
VAT can be settled monthly or quarterly, depending on the business owner's turnover and individual preferences. Monthly settlements require filing a JPK_V7M (VAT return with records, SAF-T file) by the 25th of the month for the previous month, while quarterly settlements have a more complex structure of deadlines. The choice of VAT settlement frequency has a significant impact on the company's cash flow. We can take over preparing and filing JPK_V7 files as part of our accounting services.
Quarterly VAT settlements are divided into a records part and a return part, which requires particular attention when planning deadlines. For the first and second month of the quarter, the business owner files only the records part by the 25th of the following month. The full quarterly settlement, covering the records part for the third month and the return part for the whole quarter, must be filed by the 25th of the month following the end of the quarter.
| Type of VAT settlement | Filing deadline | Scope of documents | Notes |
|---|---|---|---|
| JPK_V7M monthly | 25th of the month | Full records and return | For the previous month |
| JPK_V7K quarterly - records part | 25th of the month | Records only | For the 1st and 2nd month of the quarter |
| JPK_V7K quarterly - full settlement | 25th after the quarter | Records for the 3rd month + return | For the whole quarter |
| VAT-UE | 25th of the month | Recapitulative statement | For intra-EU acquisitions and supplies |
The EU VAT OSS procedure requires settlement by the last day of the month following the end of the quarter (Article 130c of the VAT Act). It applies to business owners providing services to consumers in other European Union countries and making intra-Community distance sales of goods. The IOSS import procedure has a settlement deadline of the last day of the month for the previous month (Article 138g)
Business owners trading with EU countries must also remember to file the VAT-UE recapitulative statement. It must be filed by the 25th of the month for the month in which the intra-Community transaction took place. This applies to intra-Community supplies of goods, intra-Community acquisitions and services provided between taxpayers from different EU countries.
Annual tax settlements
The end of the tax year comes with the obligation to file an annual tax return, which summarises all revenue and costs for the year. The deadline for PIT returns is 30 April of the year following the tax year (for 2025 – Thursday, 30 April 2026), and companies file CIT-8 by the end of the third month after the tax year (for 2025 – by 31 March 2026). The annual settlement often results in an additional tax payment or a refund of overpaid tax.
Annual returns use different forms depending on the taxation method and the nature of the business. The most commonly filed returns are PIT-36 for taxpayers on the tax scale, PIT-36L for the flat tax and PIT-28 for ryczałt. Each return must be completed carefully and may require paying the difference between the tax due and the advances paid during the year.
- The PIT-28 return is filed by business owners taxed under ryczałt
- The PIT-36 return applies to taxpayers who chose the tax scale with 12% and 32% rates
- The PIT-36L return is intended for taxpayers on the flat 19% tax
- The PIT-37 return is filed by people earning income only through a payer (for example under an employment contract or a contract of mandate (umowa zlecenia)), without a business
- The PIT-38 return applies to taxpayers earning income from capital, for example from selling shares or cryptocurrencies
- The PIT-39 return is intended for taxpayers earning income from the sale of real estate taxed at 19%
Together with the annual return, you must pay the difference between the tax due and the total advances paid during the year. If the advances exceeded the tax due, the taxpayer is entitled to a refund of the overpayment. The refund is made to the bank account indicated – for a return filed electronically, as a rule within 45 days – or the overpayment can be offset against arrears and current tax liabilities
Additional reporting obligations
In addition to the basic tax returns, business owners must remember additional reporting obligations with their own deadlines. The payer sends the PIT-11 income information to the tax office by the end of January for the previous year, only electronically – in 2026 by 2 February, because 31 January is a Saturday. It is given to employees and contractors by the end of February – in 2026 by 2 March, because 28 February is a Saturday (Article 39 section 1 of the PIT Act, Article 12 § 5 of the Tax Ordinance Act).
The PIT-4R return, which covers the advances withheld by the payer from salaries, must also be filed by the end of January for the previous year (in 2026 – by 2 February). A similar deadline applies to the PIT-8AR form, which covers the flat-rate tax withheld by the payer. These reporting obligations are key to the proper functioning of the tax system and allow tax offices to verify that settlements are correct. Besides the annual forms there are monthly obligations too – we have gathered them in a guide to monthly tax returns.
A business owner running a hair salon with three employees had to send PIT-11 information for each employee to the tax office for 2025 by 2 February 2026, and give it to the employees by 2 March 2026. At the same time, they must prepare their own annual return PIT-36 or PIT-36L, which they will file by 30 April together with any additional tax payment for the previous year.
ZUS contribution deadlines
ZUS requires business owners to pay social insurance contributions regularly, with deadlines depending on the payer's legal status and whether they employ staff. The ZUS deadline system is varied and reflects the specific nature of different types of businesses. Failure to meet ZUS payment deadlines results in late-payment interest and may lead to administrative enforcement.
The shortest ZUS payment deadline applies to budgetary units and local government budgetary establishments, which must settle their liabilities by the 5th of the following month. Payers with legal personality, including joint-stock companies, sp. z o.o. (limited liability companies), cooperatives, associations and foundations, have until the 15th of the following month. Other contribution payers, including sole traders and partnerships, have the longest deadline – by the 20th of the following month (Article 47 section 1 of the Social Insurance System Act).
The annual settlement of the health insurance contribution for the previous year is shown in the settlement documents for April, filed by 20 May (in 2026 – Wednesday, 20 May). It applies to business owners taxed under the tax scale, the flat tax and ryczałt (not the tax card) and may result in an additional payment or a refund of overpaid contributions. This settlement is particularly important for people running a business whose health insurance contribution depends on their income or revenue
Different deadlines by type of payer
The division of ZUS payment deadlines by type of payer follows directly from Article 47 section 1 of the Social Insurance System Act. Budgetary units and local government budgetary establishments have the shortest deadline, and entities with legal personality an intermediate one.
Sole traders and partnerships, including civil-law and general partnerships, have the longest deadline for paying ZUS contributions. By the same deadline the payer sends the settlement declaration and personal monthly reports, and if the deadline falls on a day off work, it moves to the next business day.
- Check which category of ZUS payer your business belongs to
- Determine the exact contribution payment deadline for your status
- Prepare the settlement documents for the month
- Complete the relevant ZUS forms electronically
- Pay the contributions to the correct ZUS account before the deadline
- Keep documents confirming timely payment of contributions
If the deadline for filing monthly settlement documents or the annual settlement of the health insurance contribution falls on a Saturday, Sunday or public holiday, it automatically moves to the first business day after the day off. This rule allows business owners to meet their obligations on time even when weekends and holidays occur
Registration procedures and changes in taxation
Business owners starting a business or changing how they are taxed must observe specific deadlines for filing the relevant applications. The CEIDG-1 form is the basic tool for registering a business in CEIDG (Central Register and Information on Economic Activity) and choosing the taxation method. The registration application is filed no later than on the day the business starts, while the statement choosing the taxation method is filed by the 20th of the month following the month in which the first revenue of the tax year was earned, or by the end of the year if the first revenue was earned in December.
The choice between the flat 19% tax, the tax scale with 12% and 32% rates and ryczałt requires a conscious decision and timely notification. Each of these taxation methods has its own settlement rules and may be more favourable depending on the nature and scale of the business. Changing the taxation method during the tax year is possible only in exceptional situations.
| Type of change | Application deadline | Form | Notes |
|---|---|---|---|
| Choice or change of taxation method | 20th of the month after the first revenue of the year | CEIDG-1 or statement to the tax office | Or by the end of the year if the first revenue is in December |
| Change of business details | 7 days from the change | CEIDG-1 update | Article 15 section 1 of the CEIDG Act |
| VAT registration | Before the day of the first taxable activity | VAT-R | When exceeding the limit or voluntarily |
| VAT-UE registration | Before the first intra-Community transaction | VAT-R | For intra-Community trade |
A change from the tax card to another taxation method must be made by 20 January of the tax year in which the new method will apply (Article 29 section 1 of the Act on flat-rate income tax). It is not possible to return to the tax card after giving it up. Since 2022 the tax card also cannot be chosen when starting a business
VAT registration and EU procedures
Registration as a VAT taxpayer can be voluntary or mandatory when the exemption limit is exceeded or when carrying out activities excluded from the exemption. The VAT-R notification must be filed before the day of the first taxable activity (Article 96 section 1 of the VAT Act), and when the limit is exceeded – no later than before the sale with which the limit is exceeded. Registration for VAT-UE, which is necessary when starting trade with businesses from other European Union countries, is notified before the day of the first intra-Community transaction (Article 97 section 1).
Business owners using EU procedures must also remember specific settlement deadlines. The VAT OSS procedure, covering services to consumers from other EU countries and intra-Community distance sales of goods, requires settlement by the last day of the month following the end of the quarter. The VAT IOSS procedure, covering distance sales of imported goods, has a settlement deadline of the last day of the month for the previous month.
- VAT registration is mandatory when sales exceed PLN 240,000 a year (from 1 January 2026; previously PLN 200,000)
- Voluntary VAT registration can be beneficial for exporters and B2B businesses
- VAT-UE registration is required before the first intra-Community transaction
- The VAT OSS and IOSS procedures apply to specialised types of business
- All changes of data in the VAT-R notification must be updated within 7 days (Article 96 section 12)
- A return to the VAT exemption is possible no earlier than one year after the end of the year in which the exemption was lost, if sales fall within the limit (Article 113 section 11)
An online retailer started exporting its products to Germany. It must file a VAT-R notification for VAT-UE registration before the first intra-Community supply. At the same time, it will have to file monthly VAT-UE recapitulative statements by the 25th of each month for the previous month in which it made such supplies.
The VAT taxpayer white list and its consequences
The VAT taxpayer white list has operated since September 2019, and since January 2020 sanctions have applied to payments to accounts not on the list, which significantly affect business owners' tax settlements. The mechanism was introduced to increase the security of business transactions and limit the risk of working with unreliable counterparties. The white list contains up-to-date information on the bank accounts of registered VAT taxpayers, which allows you to verify the reliability of business partners.
The consequences of not following the white list rules can be very severe for business owners. If a buyer pays for a transaction worth more than PLN 15,000 to an account not on the white list and the seller is an active VAT taxpayer, the buyer loses the right to recognise the expense as a tax-deductible cost (Article 22p of the PIT Act, Article 15d of the CIT Act). In addition, the buyer may be jointly and severally liable with the seller for the seller's VAT arrears (Article 117ba of the Tax Ordinance Act), unless they paid using the split payment mechanism.
The ZAW-NR notification protects you from the negative consequences of paying to an account not on the VAT taxpayer white list. The form must be filed with the head of the tax office competent for the payer within 7 days from the day the transfer was ordered. The notification contains the details of the payer and the seller, the account number to which the payment was made, and the details of the transfer and the invoice
Procedure protecting against sanctions
The ZAW-NR notification is an important safeguard for business owners who, for justified reasons, have paid to an account not on the VAT taxpayer white list. The form must be filed within 7 days from the day the transfer was ordered, which requires business owners to monitor the status of their counterparties systematically. Filing the notification on time protects against losing the right to recognise the expense as a cost and against joint and several liability for VAT.
Applying the white list rules in practice requires business owners to put appropriate procedures in place for verifying counterparties before making payments. Checking a counterparty's status on the white list should become standard practice, especially for transactions worth more than PLN 15,000. The white list is updated once a day on business days, so it is worth checking the account on the day you order the transfer.
