The Dutch Tax Authorities have announced a delay in the release of the digital M-form 2025. The paper version will also be published later than usual.

Both versions are now expected to be available on 1 May 2026, with the final submission deadline extended to 1 July 2026. The delay is due to the additional time required to correctly implement all Box 3 changes.

Did you move into or out of the Netherlands in 2025? Then the M-form will be required. Keep an eye on our website for further updates — or feel free to contact me (danielle.peeters@tax4expats.nl)