Opening a Business in Poland: JDG vs Sp. z o.o.
Ukrainians relocating to Poland sooner or later face the question: is it better to start opening a business in Poland through sole proprietorship (JDG) or to register a limited liability company (Sp. z o.o.) right away? There is no single answer — it all depends on the scale of the business, the level of risk, and how much profit is planned to be reinvested rather than withdrawn.
JDG is a fast and almost free start with full personal liability of the entrepreneur, while Sp. z o.o. is a more complex structure with share capital from PLN 5,000, but with limited liability and the ability to bring in partners. Below we examine the conditions for Ukrainians in 2026, tax regimes, mandatory reporting, and typical mistakes when choosing a form.
Which Ukrainians may open a JDG in 2026
As of 5 March 2026, new rules for business registration by foreigners apply. A citizen of Ukraine may register and operate a JDG on the same terms as a Polish citizen only if they hold PESEL UKR status (a beneficiary of temporary protection) or another legalizing residence permit.
This right remains in force through 4 March 2027 inclusive, as that is the date to which the special act on assistance to citizens of Ukraine was calibrated at the time the March 2026 amendments were adopted. Temporary protection at the EU level has already been extended until 4 March 2028, so a similar extension of the Polish JDG rules is reasonably expected. However, at the time this article was prepared there was still no official confirmation specifically regarding the JDG deadlines, and this point should be verified immediately before registration.
A separate concession is provided for those who registered a JDG before 5 March 2026 under the previous simplified rules. Such entrepreneurs may continue their activity regardless of which residence permit they currently hold — provided that their stay in Poland remains legal.
JDG: simple registration and full liability
Jednoosobowa działalność gospodarcza is registered free of charge via the CEIDG portal — without a notary, without share capital, usually within one day. This makes JDG the most accessible way to work legally for oneself in Poland.
The flip side of simplicity is full property liability: the entrepreneur is liable for business debts with all personal assets, with no separation between company assets and personal assets.
- Registration via CEIDG — free of charge, online, without a notary
- No minimum capital requirement
- Simplified bookkeeping (KPiR or ryczałt) instead of full accounting
- Full personal liability for business obligations
Sp. z o.o.: capital, separate legal personality, and limited liability
Spółka z ograniczoną odpowiedzialnością is a legal entity with share capital from PLN 5,000 that is liable for its debts with its own assets, not with the personal assets of the founders.
Registration is possible through the accelerated electronic S24 system — a decision on entry in the KRS is made within 24–72 hours without a visit to a notary if a standard articles of association template is used. Registration costs consist of several components. These are a court fee of PLN 250, a fee for the announcement in Monitor Sądowy i Gospodarczy of PLN 100, and PCC tax of 0.5% of the capital — PLN 25 at capital of PLN 5,000. Together with the capital itself, the total amount at the start is about PLN 5,375.
The classic route through a notary costs more and takes longer, but offers greater flexibility in the wording of the articles of association — which may be important where there are several partners with different shares and exit terms.
JDG or Sp. z o.o.: comparative table
| Criterion | JDG | Sp. z o.o. |
| Liability | With personal assets | Only with company assets |
| Minimum capital | Not required | PLN 5,000 |
| Registration | Free of charge, 1 day, CEIDG | From ~PLN 5,375, 1–3 days via S24 |
| Bookkeeping | Simplified (KPiR/ryczałt) | Full (pełna księgowość) |
| Cost of accounting | From PLN 150–300/month | PLN 800–2,000/month |
| Tax on profit | Ryczałt, skala, or liniowy | CIT 9% or 19% |
| Profit withdrawal | No additional tax | Plus 19% dividend tax |
| Partners | Only one natural person | One or several co-owners |
Reporting: what actually needs to be filed
For a JDG, basic reporting is the revenue and expense ledger (KPiR) or simplified accounting under ryczałt, monthly ZUS declarations, and the annual PIT tax return. Most entrepreneurs handle this through an inexpensive accounting office or an online service.
An Sp. z o.o. is required to keep full accounts (pełna księgowość) with a balance sheet, profit and loss statement, general ledger and subsidiary registers, and to file annual financial statements with the KRS via a dedicated portal. This requires engaging a professional accountant or accounting firm on an ongoing basis, which forms the bulk of the monthly costs of maintaining the company.
Taxes and ZUS for a JDG entrepreneur
For the first 6 full calendar months, ulga na start applies — exemption from mandatory social ZUS contributions, but not from the health insurance contribution.
After the relief ends, preferential ZUS applies for 24 months based on a base of PLN 1,441.80, and after the full transition to standard contributions the social portion in 2026 is about PLN 456.18 per month.
The health insurance contribution depends on the chosen form of taxation: under the general rules or liniowy, the minimum in 2026 is PLN 432.54 per month; under ryczałt — PLN 496.68, 827.80, or 1,490.04 depending on annual income. Under the liniowy tax, the contribution may be partly treated as an expense or deduction within the annual limit of PLN 14,100, which reduces the tax base.
Taxes for Sp. z o.o.: CIT and double taxation
The company pays corporate income tax (CIT) — 9% for small taxpayers with revenue up to the established euro limit converted into zlotys, or 19% at the standard rate for larger businesses.
If profit is distributed to co-owners as dividends, it is subject to an additional 19% tax — this is the double taxation that is the key difference between Sp. z o.o. and JDG. That is why the real advantage of this form appears when profit remains in the company and is reinvested rather than distributed each year.
When JDG is more advantageous, and when Sp. z o.o. is
Our experience shows that with high revenue and low expenses, especially where a reduced ryczałt rate of 8.5% can be applied, JDG is often more advantageous than Sp. z o.o. even without taking into account the cost of full accounting.
Sp. z o.o. is justified if the business involves elevated risk (loans, premises lease, hiring staff), if several co-owners with different shares are planned, or if profit is intended to be accumulated inside the company for years rather than withdrawn personally.
- Choose JDG for a start with minimal risk and a single owner
- Switch to Sp. z o.o. when turnover grows, a team is hired, or partners are brought in
- Assess not only the tax rate but also the cost of mandatory full accounting
- Take into account how often you plan to withdraw profit personally
Pitfalls when choosing a business form
The first mistake is registering an Sp. z o.o. “just in case” without calculating that an extra PLN 800–2,000 per month on accounting for years may exceed any tax savings.
The second is forgetting the personal liability of Sp. z o.o. management board members: if the company becomes insolvent and the board fails to file for bankruptcy in time, board members may be liable with their personal assets for tax debts and debts to ZUS.
The third mistake is failing to track the validity periods of one’s residence permit. A Ukrainian’s right to a JDG on general terms is tied to PESEL UKR status or another legalizing title, and its expiry without extension automatically calls into question the lawfulness of conducting the activity.
Changing the business form: how to move from JDG to Sp. z o.o.
If a JDG business has grown and requires limited liability or bringing in an investor, Polish law allows przekształcenie — conversion of sole proprietorship into a company without full liquidation of the former enterprise.
The procedure involves drafting a transformation plan, executing a notarial deed, and filing amendments with the KRS, and therefore usually takes several weeks and requires the involvement of a notary and an accountant. In practice, many entrepreneurs, instead of transforming, simply register a new Sp. z o.o. and gradually transfer contracts and clients to it if the historical JDG agreements are not critical to retain.
Our experience: legal support for business in Poland
International Law Firm "Zahist" has its own representative office in Poland and supports Ukrainians at every stage — from choosing the form of registration to ongoing tax and accounting consulting.
In practice, we see that a decision made without calculating specific figures for turnover and expenses often has to be revised after only six months to a year of operations, which means additional costs for re-registration and a change of the taxation regime.
Our team recommends: starting a business in Poland is a decision that should be made only after calculating specific amounts under both scenarios, taking into account expected turnover, expenses, and plans for profit distribution, and not based on general advice from acquaintances.
If you are unsure which form is right for your particular project, starting a business in Poland should be discussed with a lawyer before filing the documents — a mistake at this stage costs more than a consultation.
