Annual PIT return and applicable attachments online, by post, in person
Documents
Also needed in some situations
PIT-11 and other payer documents
Important
Deadlines and processing
Annual return for tax year 2025 — By 30 April 2026
Understand this route
What to do
Use the return selector only after classifying income, payer documents, foreign income and the tax year.
PIT-37 is commonly relevant to Polish payer income; self-calculated, foreign or other income can require a different form or verification. Do not treat this route as a calculation.