Quarterly BTW Deadlines 2026: Dates Every ZZP'er Needs to Know

Complete 2026 Tax Calendar for Freelancers in the Netherlands

All BTW filing deadlines for 2026: Q1 by 30 April, Q2 by 31 July, Q3 by 31 October, Q4 by 31 January 2027. Plus income tax deadline (1 May 2026), quarterly preparation tips, first-year ZZP'er timeline, and filing checklist.

Key Dates

31 Jan: BTW Q4 2025. 30 Apr: BTW Q1 2026. 1 May: Income tax 2025. 31 Jul: BTW Q2 2026. 31 Oct: BTW Q3 2026. 31 Jan 2027: BTW Q4 2026.