Before you start

PESEL, and address registration within 30 days of moving in
A trusted profile for e-PIT
An employment contract, or a CEIDG registration and NIP
Contemporaneous IP records, if you intend to claim IP Box

Step-by-step

1
Get PESEL and register your address
Both are handled by the Urząd Miasta Poznania. Meldunek is legally due within 30 days and the form needs the property owner's signature, so raise it during the lease negotiation.
In personWho: YouFree
2
Put a Poznań address on your PIT
Your tax office is determined by where you live, not where your employer sits. For the Bilet Metropolitalny you need to settle with an office covering Poznań or one of the nineteen partner communes — and you do not need meldunek to do it, just an accurate address on the return.
OnlineWho: You
3
On employment, do nothing
Your employer registers you with ZUS, withholds tax and issues a PIT-11 by the end of February. NFZ cover follows automatically.
Via employerWho: Your employer
4
On B2B, register in CEIDG and elect a regime
Registration is free and online. You then choose between the progressive scale, the 19% flat rate and ryczałt — 12% of revenue for software development, 8.5% for several adjacent classifications.
OnlineWho: YouFree
5
Meet the election deadline
The taxation form for a year must be declared by the 20th of the month following your first revenue in it — 20 February for a continuing business. There is no late election and no correction.
OnlineWho: YouBy 20 February for existing businesses
6
File by 30 April, then register the transport discount
e-PIT auto-accepts on 30 April if untouched, silently forfeiting deductions and the 1.5% charity allocation. Once filed, register the Bilet Metropolitalny entitlement through peka.poznan.pl or the PEKA app — no counter visit needed.
OnlineWho: YouAnnually by 30 April

Documents you’ll need

PESEL and NIP
PIT-11 from each employer, issued by the end of February
CEIDG extract and revenue records, for sole traders
A separate IP Box ledger, if claiming
Trusted profile credentials for e-PIT and PEKA

Things most newcomers don’t know

Filing your PIT in Poznań is worth PLN 640 a year on transport alone.

The Bilet Metropolitalny cuts the annual zone A pass from PLN 1,589 to PLN 949 and the 30-day pass from PLN 199 to PLN 119, for residents of Poznań or nineteen partner communes who settle income tax with a local office. Crucially it does not require meldunek — you only need a Poznań address on the PIT form. Newcomers who keep filing at a previous address, or whose employer's accountant defaults to the company's office, pay the higher fare for years without noticing.

Source: ZTM Poznań / City of Poznań — Bilet Metropolitalny terms

Business space is taxed at roughly 28 times the residential rate.

The Ministry of Finance's 2026 ceilings are PLN 1.25 per square metre a year for residential space and PLN 35.53 for space connected with a business, and Poznań adopted the maximum on both. A room reassessed as business space costs more than the rest of the flat combined, and the bill goes to the owner. If you plan to register a company at your rented address, put it in the lease.

Source: Ministry of Finance — 2026 local tax ceilings; Poznań city resolution

IP Box drops the rate on qualified software income to 5%, and the records must be contemporaneous.

Poland taxes income from qualified intellectual property created through R&D at 5%, and bespoke software written by a contractor commonly qualifies. The catch is evidential: a separate ledger identifying each right and attributing revenue and costs to it, kept throughout the year. Reconstructing it in March is what tax offices reject.

Source: podatki.gov.pl — IP Box relief

ZUS is the number that decides whether B2B is worth it, not the tax rate.

A Polish sole trader pays roughly PLN 2,400–3,400 a month in social and health contributions in 2026 whatever the income tax does. Six months of ulga na start followed by 24 months of preferential ZUS make the early years work, and both are lost if you set up a limited company instead. In a labour market this tight, a permanent contract also carries more bargaining power than usual — so the B2B premium has to be larger here to be worth it.

Source: ZUS contribution schedule 2026

Common mistakes to avoid

Filing your PIT at an old address and paying PLN 80 a month more for the same transport pass.
Registering a business at your home address without agreeing the property-tax consequence with the owner.
Writing software on B2B for years without ever setting up the IP Box ledger.
Missing the 20 February deadline to change taxation form.
Letting e-PIT auto-accept on 30 April with deductions and the 1.5% allocation unused.

Some of this may be out of date. Spotted something inaccurate? Help us keep it right for the next newcomer.