Invoicing a foreign client from a Warsaw JDG
Billing a client outside Poland from a Warsaw JDG: where the VAT lands, the VAT-UE registration, the NBP rate that converts your euros, and what KSeF changes.
What the paperwork of a long stay in Warsaw, Poland actually asks for — the MOS 2.0 filing, the Mazowieckie wait, leases, contracts and tax — dated, and written by someone who is not selling the filing.
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What your contract type does to your residence permit
A single permit in Poland names an employer, a position and a salary. Change the contract and you change what the permit was granted for.
The health contribution on ryczałt: three brackets, three numbers
Poland's 2026 health contribution on the ryczałt is 498.35, 830.58 or 1,495.04 zł a month. Each is 9% of a multiple of one GUS wage figure.
ZUS on a JDG in 2026: ulga na start, preferential, full
Thirty months of ZUS relief for a new sole trader in Poland, then 1,926.76 zł a month. What each figure contains, and why ulga na start is not free cover.
Ryczałt at 12% for IT: the arithmetic and the crossover
The ryczałt taxes revenue, not profit, so Poland's 12% IT rate wins on low costs and loses on high ones. Here is where the crossover actually sits.
Opening a JDG as a foreigner: what you need and what you do not
Registering a JDG in Warsaw, Poland is free and takes an afternoon. The hard part is the eligibility check before it and the ZUS deadline after it.
Umowa o pracę, zlecenie or B2B in Warsaw: the decision
Which contract to sign in Warsaw, Poland. Umowa o pracę, umowa zlecenie and B2B differ on your residence permit, your ZUS and your take-home — in that order.
Renewal, permanent residence, and the EU long-term resident card
After your first Polish karta pobytu: renewing a temporary permit, the grounds-based permanent residence route, and five-year EU long-term resident status.
Biometrics, and when the 60-day clock actually starts
Poland's 60-day residence term does not start when you file in MOS. It starts on the last of three events, and the fingerprint appointment is usually it.
What the Mazowieckie office checks, in the order it checks it
The Mazowieckie office in Warsaw works a karta pobytu file in a fixed order: timeliness, formal defects, then substance. That tells you what to fix first.
The EU Blue Card and its 13,355.34 zł threshold
Poland's EU Blue Card salary floor for 2026 is 13,355.34 zł gross a month. It is a multiple of a GUS figure that resets each February. Here is the arithmetic.
The single permit against a separate work permit
Poland lets you legalise work and residence in one case or two. The route you are on decides who files, what it costs, and what a job change does to you.
MOS 2.0: filing your residence application since 27 April 2026
Since 27 April 2026 a Polish residence application is filed only in MOS. What the portal asks for, in what order, and the two steps that are not in it.
Which karta pobytu you actually need in Warsaw
There is no single karta pobytu. Poland has several permit types, and most people arriving in Warsaw for a job need one of them. Here is which.
Your visa expires before the decision comes
A national visa expiring mid-case in Warsaw, Poland does not make your stay unlawful. It changes what you can do at a border, which is the real problem.