LAK Nederlandtax advice & accounting
Tax calendar

Never miss a deadline again

The key tax dates for business owners and private individuals, all in one place. Add them to your calendar — or simply leave them to us.

Next deadline

See the calendar below

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📅 Add to your calendar
  1. December 2026
  2. 31Dec
    Annual accountsDeadline

    File your 2025 annual accounts

    For private limited companies (bv) whose financial year equals the calendar year: the 2025 annual accounts must be filed with the Chamber of Commerce (KVK) by this date at the latest. The law allows twelve months after the end of the financial year.

  3. 31Dec
    Tip

    Year end: last chance for 2026

    Donations and investments you make before the end of 2026 count towards your 2026 tax return. Not sure? Email us before the holidays.

  4. January 2027
  5. 1Jan
    Box 3

    Box 3 reference date

    Your savings, investments and debts on 1 January 2027 determine your box 3 tax for 2027.

  6. 31Jan
    VATDeadline

    VAT return Q4 2026

    File and pay the VAT for October to December 2026.

  7. March 2027
  8. 1Mar
    Income tax

    2026 income tax return opens

    From 1 March you can file your 2026 return. Gather your documents with our checklist and your return will be ready in no time.

  9. 31Mar
    Income tax

    Get an answer sooner

    File before 1 April and the Dutch Tax Administration will get back to you before 1 July.

  10. April 2027
  11. 30Apr
    Income taxDeadline

    Deadline for your 2026 income tax return

    Your return must be filed before 1 May 2027, unless you have an extension. Through the extension scheme for tax advisers, we arrange that for you.

  12. 30Apr
    VATDeadline

    VAT return Q1 2027

    File and pay the VAT for January to March 2027.

  13. May 2027
  14. 31May
    Corporate taxDeadline

    Deadline for your 2026 corporate income tax return

    Does your financial year equal the calendar year? Then the return must be filed before 1 June 2027, unless an extension applies.

  15. July 2027
  16. 31Jul
    VATDeadline

    VAT return Q2 2027

    File and pay the VAT for April to June 2027.

  17. August 2027
  18. 31Aug
    Income taxDeadline

    End of a self-requested extension

    Did you get an extension yourself for your 2026 income tax return? It runs until 1 September 2027.

  19. October 2027
  20. 31Oct
    VATDeadline

    VAT return Q3 2027

    File and pay the VAT for July to September 2027.

  21. December 2027
  22. 31Dec
    Annual accountsDeadline

    File your 2026 annual accounts

    For private limited companies (bv) whose financial year equals the calendar year: the 2026 annual accounts must be filed with the Chamber of Commerce (KVK) by this date at the latest. The law allows twelve months after the end of the financial year.

  23. 31Dec
    Tip

    Year end: last chance for 2027

    Donations and investments you make before the end of 2027 count towards your 2027 tax return.

Good to know. Do you file your VAT (btw) return monthly? Then your return and payment must be in by the last day of the month following the period. You can also find the exact VAT deadline that applies to you in Mijn Belastingdienst Zakelijk. Short on time for your income tax or corporate income tax return? We can arrange an extension for you through the extension scheme for tax advisers (uitstelregeling).

The calendar file works with Apple Calendar, Google Calendar and Outlook, and reminds you of each deadline a week in advance.

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LAK clients don't need to watch the calendar themselves. We'll give you a heads-up in good time.

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