PIT-37 in 2026: filing deadline and tax refund
When to file PIT-37 for 2025, how to speed up the refund and what to do when 30 April is near.
PIT-37 is the most common annual tax return in Poland — filed by individuals earning income through a payer (employment contract, civil-law contract, pension). The 2025 year is reported in 2026, and the deadline is the same for all employees regardless of residence.
Filing deadline
The final deadline to file PIT-37 for 2025 is 30 April 2026. Filing after that date triggers interest and a risk of fiscal liability, although minor delays are usually covered by an active regret (czynny żal). The fastest and safest route is the Twój e-PIT service in e-Urząd Skarbowy.
How to get the refund faster
The refund time depends on the filing method. An electronic PIT-37 usually returns the overpayment within 45 days, while paper filings can take up to 3 months. Holders of the Large Family Card also benefit from priority handling.
- PIT online via e-Urząd Skarbowy — refund within 45 days.
- Paper PIT — refund up to 3 months.
- Bank account registered with the tax office — automatic refund.
- No account — refund by postal order minus the fee.
Reliefs and deductions for 2025
In PIT-37 remember the child relief, joint spousal filing, rehabilitation relief, thermo-modernisation relief and donations. Every deduction requires documents — receipts, invoices and PIT-11 from the employer. Before submitting, compare the automatic Twój e-PIT draft with your own calculation: the system will not include reliefs the office does not know about.