B2B or an employment contract (UoP): which pays more once you count everything?
On 18,000 PLN a month, B2B leaves about 28,000–40,000 PLN more a year than a UoP in 2026. The worked example, what you give up, and the new PIP risk.
The basics
The words and registers every business in Poland runs into: NIP, REGON, PESEL, CEIDG, KRS, PKD.
Mikrofirma: what counts as a micro business in Poland, and the limits for 2026
A micro business in Poland has fewer than 10 employees and up to 2 million euro turnover. What the status changes, and the tax tests that only sound similar.
NIP, REGON, PESEL and KRS: which Polish number is which?
PESEL is you, NIP is your tax number, REGON the statistics number, KRS a company's. Who issues each, where each one goes, and NIP without a PESEL.
Unregistered activity in Poland: earning a little without a JDG (the 2026 quarterly limit)
Up to 10,813.50 PLN a quarter in 2026 with no CEIDG entry and no ZUS of your own. Who can use działalność nierejestrowana, what records to keep, how tax works.
What is a JDG in Poland? The sole trader, explained in plain English
A JDG is Poland's sole trader: you, registered as a business. Who can open one, what it costs in 2026, what you risk, and what you file each month.
JDG or sp. z o.o. in Poland: which should you choose?
JDG or sp. z o.o. in 2026: liability, ZUS, tax, accounting and closing side by side, when a company pays off, and which one a foreigner can open.
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