Every entrepreneur starting a business in Poland can use a number of reliefs designed for new firms. One of the most important is the option of paying preferential ZUS (Social Insurance Institution) contributions for 24 full months from starting the business. When this period ends, the entrepreneur has to switch to standard contributions, which means not only higher costs but also completing certain formalities with ZUS.
Switching from preferential to standard ZUS contributions does not happen automatically and requires action on the entrepreneur's part. Failing to re-register properly can have serious financial consequences, including having to settle arrears and additional penalty charges. That is why it is so important to understand the whole process and the deadlines that must be strictly observed.
Preferential ZUS contributions are available to entrepreneurs for the first 24 calendar months from the day they start running the business. The contribution base is a declared amount, but not lower than 30% of the minimum wage
Conditions for using preferential ZUS contributions
To pay ZUS contributions at the preferential rate, an entrepreneur must meet certain legal conditions. The most important is not having run a business in the last 5 years before starting the new one. This criterion is meant to support genuinely new entrepreneurs, not people who have already run a business before.
The second important condition concerns the former employer: the entrepreneur must not perform for them, as part of the business, tasks that they performed for that employer under an employment relationship in the current or previous calendar year. This means that a person who ended their employment and immediately started providing the same tasks to the same entity as a business will not be able to use preferential ZUS contributions. We can prepare ZUS registrations and monthly contribution settlements as part of HR and payroll.
The exception to the ban on working for a former employer applies when the services provided as part of the business do not fall within the scope of the tasks previously performed under the employment contract. What matters is the scope of tasks, not the name of the contract concluded
The rules also allow you to continue working with a former employer, but only if the work differs in nature from your previous duties as an employee. In practice, this means the entrepreneur can provide services to their former employer, but they must differ from the tasks previously performed under the employment contract.
These conditions are strict, and failing to meet them means losing the right to preferential contributions. ZUS can check at any time whether the entrepreneur meets the required criteria, which is why an honest approach to qualifying for this relief is so important.
Exact end date of preferential ZUS
Determining exactly when the preferential ZUS period ends is key to planning the formalities of switching to standard contributions. Preferential ZUS lasts exactly 24 full months from the start of the business, but the way this period is counted may raise doubts.
If the entrepreneur started the business on the first day of a month, then after 24 months they should start paying standard ZUS contributions or contributions under small ZUS plus (mały ZUS plus), if they meet the relevant conditions. In that case, calculating the date is relatively simple and raises no major doubts. If the entrepreneur first used the start-up relief (ulga na start – 6 months without compulsory social security contributions), the 24 months of preferential contributions are counted from the day they became covered by insurance after that relief ended.
The problem may arise when the business is started in the middle of a month. Under the rules, preferential contributions cover a period of a full 24 months, which means the first incomplete month is not counted in the basic preferential period. This rule has significant practical consequences for planning the switch to standard contributions.
Example of calculating the preferential period: an entrepreneur set up a business on 15 July 2023 and pays preferential ZUS contributions until 31 July 2025. They start paying full ZUS contributions from August 2025
In practice, this means that an entrepreneur who started the business mid-month can use the preferential rates for longer than 24 calendar months, but not longer than 25 months. This extra time results from the fact that the first incomplete month is not counted in the preferential period, while the last month of preference must be a full month.
Calculating the end of the preferential period correctly is extremely important, because the entrepreneur must complete certain formalities within strict deadlines. A miscalculation can lead to delays in re-registration and related financial consequences.
Formalities for switching to standard contributions
Switching from preferential to standard ZUS contributions requires three key formalities with ZUS. Each has its own deadline and procedure, and failing to complete them can have serious financial consequences for the entrepreneur.
The first step is filing the ZUS ZWUA form, which deregisters you from the preferential contribution title. In the form, state the date on which you stop paying the lower contribution and use the relevant insurance code 05 70 xx, which denotes preferential contributions. Deregistration must be made within 7 days of losing the right to preferential contributions.
Deregistration from preferential ZUS contributions must be made within 7 days of losing the right to the preference. Use the ZUS ZWUA form with insurance code 05 70 xx
The second necessary step is filing the ZUS ZUA form, i.e. registering yourself as an insured person with the new insurance title code. In this document, state the date from which you start paying contributions at the standard rate. The registration concerns the insurance title with code 05 10 xx for standard full ZUS or 05 90 xx for small ZUS plus. The deadline is again 7 days from the moment the higher ZUS contributions start to apply. If you also have a job, the rules on overlapping insurance titles are covered in our guide to ZUS contributions when combining a job and a business.
The third and final step is filing the ZUS DRA settlement declaration for the first month of paying contributions at the standard rate or under small ZUS plus. This declaration sets the base for calculating contributions for the new periods. It must be filed by the 20th of the following month for the previous month at the latest.
| Formality | Form | Filing deadline | Insurance code | Notes |
|---|---|---|---|---|
| Deregistration | ZUS ZWUA | 7 days from losing the right | 05 70 xx | End of preference |
| Registration | ZUS ZUA | 7 days from the start | 05 10 xx / 05 90 xx | Standard contributions |
| Declaration | ZUS DRA | By the 20th of the month | According to the new title | First declaration |
Consequences of missing deadlines
Missing the deadlines for switching from preferential to standard ZUS contributions can have serious financial consequences for the entrepreneur. ZUS has no obligation to inform entrepreneurs that the preferential period has ended, which means that full responsibility for meeting the deadlines lies with the entrepreneur.
Using the preference after the statutory 24-month period has expired may involve a number of additional formalities and financial consequences. Above all, the entrepreneur will have to settle the arrears on their ZUS account that arose from underpaying contributions during the period when they were no longer entitled to the preference.
In some cases, ZUS may impose an additional charge of up to 100% of the unpaid contributions (Article 24 section 1a of the Social Insurance System Act). This charge is punitive in nature and is meant to discourage entrepreneurs from knowingly breaking the rules on preferential ZUS contributions.
Using preferential ZUS contributions after the 24-month period has expired may mean having to settle arrears and an additional charge of up to 100% of the unpaid contributions
In addition, the entrepreneur may be charged late-payment interest on contributions paid late. This interest is charged from the first day after the payment deadline and can significantly increase the total cost of the arrears.
Also remember that ZUS arrears may affect your ability to use other reliefs and preferences in the future. Entrepreneurs with arrears may be excluded from some support programmes or have limited options for applying for further reliefs.
Financial preparation for the switch
Switching from preferential to standard ZUS contributions often means a significant increase in the monthly cost of running a business. For many entrepreneurs this can be a real financial shock, which is why it is so important to prepare for the change well in advance.
At the lowest bases, the difference between preferential and standard ZUS contributions in 2026 is PLN 1,470.58 per month (PLN 456.18 compared with PLN 1,926.76, including the voluntary sickness contribution and the contribution to the Labour Fund and the Solidarity Fund), and correspondingly more with a higher declared base. Such an increase in costs can significantly affect the firm's liquidity, especially if the entrepreneur has not prepared properly for the change.
It is worth starting financial preparations a few months before the preferential period ends. A good practice is to set aside, for several months, a small amount corresponding to the difference between the preferential and standard contributions. With this approach, having to pay higher contributions will not affect the day-to-day running of the business so drastically.
Financial preparation for switching to standard ZUS contributions should start a few months in advance. It is worth setting aside an amount corresponding to the difference between the preferential and standard contributions
It is also worth considering small ZUS plus if the entrepreneur meets the relevant revenue conditions. This way of paying contributions can be a compromise between preferential contributions and full standard ZUS, offering lower costs for entrepreneurs with lower income. One-off relief from paying contributions is also available through the ZUS contribution holiday.
Financial planning should also take account of possible changes in business strategy. Some entrepreneurs decide to step up their marketing or look for new sources of revenue before the preferential period ends, in order to increase income and offset the rise in ZUS contributions.
Alternatives after the preference ends
When the 24-month period of preferential ZUS contributions ends, the entrepreneur has two basic options for continuing to pay contributions. The right choice depends on the income earned, the nature of the business and the entrepreneur's individual financial situation.
The first option is switching to standard ZUS contributions, often called "full ZUS" (duży ZUS). In this case, the entrepreneur pays contributions from a base of no less than 60% of the projected average salary for the given year – in 2026 this is PLN 5,652. This option provides the highest level of future benefits, but also involves the highest monthly costs.
The second option is small ZUS plus, which is available to entrepreneurs whose revenue from the business in the previous year did not exceed PLN 120,000 and who ran the business for at least 60 days in that year. In this case, the contribution base is half of the average monthly income from the previous year (no less than 30% of the minimum wage and no more than 60% of the projected average salary), and the relief can be used for a maximum of 36 months in every 60-month period of running the business, which can be beneficial for entrepreneurs with lower or irregular income.
- Standard ZUS contributions provide the highest level of future benefits
- Small ZUS plus makes contributions depend on income earned in the previous year
- Small ZUS plus requires you to report to ZUS your revenue and income from the previous year
- The form of contributions can be changed within certain deadlines
- Each form has different consequences for the amount of future benefits
The term "income-based contributions" in practice means small ZUS plus. The rules do not provide for a separate form in which social security contributions are calculated every month from current income: the base under small ZUS plus is set once per calendar year on the basis of income from the previous year. By contrast, the health contribution is calculated from the previous month's income under the tax scale (12% and 32%) and the flat 19% tax (podatek liniowy).
When the preference ends, the entrepreneur can choose between standard ZUS contributions and small ZUS plus, colloquially called income-based contributions. The choice depends on revenue and income in the previous year and on the individual financial situation
The role of the accounting office in the switch
Many entrepreneurs use accounting offices, which can make switching from preferential to standard ZUS contributions much easier. If the contract with the accounting office covers ZUS matters, the accountants can complete all the necessary formalities on behalf of the business owner.
A professional accounting office should monitor the end dates of preferential periods for its clients and remind them in good time about the upcoming switch. Experienced accountants know all the procedures and can carry out the re-registration efficiently, reducing the risk of errors or delays.
Working with an accounting office is particularly valuable when choosing the right form of paying contributions after the preference ends. Accountants can analyse the client's financial situation and advise on the most favourable option, taking into account both current costs and the long-term consequences for future benefits.
An entrepreneur running a sole-proprietorship consultancy paid preferential ZUS contributions for the first 24 months. Three months before the preference ended, his accounting office analysed his income and suggested switching to small ZUS plus. As a result, he avoided the jump in costs associated with standard contributions while keeping an appropriate level of social insurance.
Remember, however, that the final responsibility for meeting deadlines and fulfilling obligations always lies with the entrepreneur. So even when working with an accounting office, it is worth monitoring the key deadlines yourself and being aware of all the obligations involved in switching to standard contributions.
Re-registration procedure step by step
Re-registering from preferential to standard ZUS contributions requires carrying out certain steps precisely, in the right order and within the deadlines. Below is a detailed procedure to help entrepreneurs complete the whole re-registration smoothly.
- Determine the exact end date of the preference based on the business start date
- Prepare the ZUS ZWUA form with insurance code 05 70 xx
- File the deregistration within 7 days of losing the right to the preference
- Prepare the ZUS ZUA form with the relevant code for the new form of contributions
- File the registration under the new insurance title within 7 days
- Prepare and file the ZUS DRA declaration for the first month of the new contributions
- Check that all the documents filed and payment deadlines are correct
Each of these steps has its own requirements and deadlines that must be strictly observed. A delay at any stage can lead to complications and additional costs.
Pay particular attention to entering the insurance codes correctly in each form. Incorrect codes can lead to contributions being allocated incorrectly and to the need to correct documents, which further complicates the whole process.
The re-registration procedure requires filing three key documents: ZUS ZWUA for deregistration, ZUS ZUA for registration under the new title and ZUS DRA as the first settlement declaration
Monitoring deadlines and reminders
Managing the switch from preferential to standard ZUS contributions effectively requires systematic monitoring of key deadlines. As ZUS has no obligation to remind entrepreneurs that the preferential period is ending, full responsibility for meeting the deadlines lies with the entrepreneur.
A good practice is to create a calendar with the key dates for switching to standard contributions. It should include the end date of the 24-month preferential period, the deadlines for filing the individual forms and the payment dates of the first contributions at the new rate.
It is also worth setting reminders well in advance, so you have enough time to prepare and file all the necessary documents. A good solution is to set the first reminder 3 months before the preference ends, which gives time for financial preparation and for planning all the formalities.
Further reminders should be set 1 month and 1 week before the key deadlines. Spacing the reminders like this lets you prepare the documents calmly and avoid a last-minute rush that can lead to mistakes.
Most common mistakes and how to avoid them
When switching from preferential to standard ZUS contributions, entrepreneurs often make typical mistakes that can lead to complications and additional costs. Knowing these pitfalls and how to avoid them is key to completing the whole process smoothly.
One of the most common mistakes is miscalculating the end of the preferential period, especially when the business was started mid-month. Entrepreneurs often forget that the first incomplete month does not count towards the 24-month preferential period, which can lead to re-registering too early or too late.
Another common mistake is entering the wrong insurance codes in ZUS forms. Mixing up the codes can lead to contributions being allocated incorrectly and to time-consuming corrections. It is particularly important to distinguish correctly between code 05 70 xx for preferential contributions and codes 05 10 xx or 05 90 xx for the different forms of standard contributions.
The most common mistakes are miscalculating the end of the preferential period, mixing up insurance codes in the forms and delays in filing the required documents
Many entrepreneurs also make the mistake of filing the required forms late. The 7-day deadlines for ZUS ZWUA and ZUS ZUA are strict, and missing them can lead to financial sanctions. That is why it is so important to plan and prepare the documents in advance.
The last common mistake is a lack of financial preparation for the increase in contributions. Entrepreneurs who have not planned properly for the higher costs may find themselves in a difficult financial situation, which can harm the whole business.
