This monthly compliance calendar outlines critical deadlines for Polish accounting offices and taxpayers for November and December 2026. It covers changes in labor law, ongoing legislative tax amendments, advance corporate and personal income tax payments, and social security (ZUS) contribution schedules. The guide ensures firms avoid late-payment interest and penalties.
Key Takeaways
- Advance Tax Payments: CIT and PIT advance payments for November are due by 20 December 2026; December advances by 20 January 2027.
- ZUS Contributions: Monthly social security contributions must be paid by the 15th of the following month (15 November for October, 15 December for November).
- Legislative Monitoring: Several pending tax bills may alter filing requirements retroactively; firms should monitor the Sejm’s legislative tracker.
Disclaimer: This article is compiled and summarized by the AI based on publicly available information and is for general information purposes only. It does not constitute any form of formal tax advice, legal opinion, or basis for performance. Please consult a qualified professional tax advisor or legal counsel for tax advice.
Source: Read Official Announcement