July 31
BTW declaration, ICP declaration (if you work with partners who are legal entities from other EU countries), OSS declaration (if your clients are individuals from other EU countries) for Q2 2026 (April–June) + payment of tax, if any, to be paid.
October 31
BTW declaration, ICP declaration, OSS declaration for Q3 2026 (July–September).
January 31 2027
BTW declaration for Q4 2026 (October–December).
At the request of the tax authorities, these reports can be submitted monthly.
We remind you:
- late declaration = €68 fine, even with zero tax
- late payment = penalty
— for systematic violations — increased fines (up to €1,319)
Keeping track of all this on your own is possible, but tedious. With our subscription, we take care of deadline management: you receive a completed tax return or payment reminder—and you never miss a thing.
Publication date: 01.07.2026/XNUMX/XNUMX
