Tax

Middeling (Tax Averaging)

Last updated: July 2026 Reviewed & verified by Galvin Mendonca

Definition

A tax relief scheme allowing individuals with fluctuating incomes to average earnings over three years.

Key Takeaways

  • Middeling averages Box 1 income over three consecutive years for tax relief.
  • Helps individuals with fluctuating income (bonuses, unemployment) avoid excessive tax.
  • Must apply to Belastingdienst with three finalized tax returns; refund if average yields lower tax.
  • Particularly beneficial for freelancers and contractors with irregular earnings.

Detailed Explanation

Middeling (tax averaging) is a Dutch tax relief scheme that allows individuals with highly fluctuating Box 1 income to average their earnings over three consecutive years. If the tax calculated on the average is lower than what you actually paid, you receive a refund. This helps people who experienced income spikes (bonuses, freelance windfalls) or drops (unemployment, reduced hours) avoid paying excessive tax due to progressive bracket rates.

To qualify for middeling, you must have three consecutive years of finalized tax returns in the Netherlands, and your income must have fluctuated significantly. You apply for middeling by requesting the Belastingdienst to recalculate your tax using the three-year average. If approved, you may receive a substantial refund. The scheme is particularly beneficial for freelancers, contractors, and those with irregular employment. Note: there are plans to phase out or reform middeling in future years.

Real-World Example If Anneke, a freelancer, earned €30,000 in 2024, €90,000 in 2025 (big project), and €40,000 in 2026, her three-year average is €53,333. Without middeling, her 2025 income pushes her into the 49.50% top bracket. With middeling, her tax is recalculated as if she earned €53,333 each year, staying in lower brackets. She receives a tax refund for the overpayment in 2025.

Disclaimer: Definitions and explanations on this glossary page are provided strictly for general educational and informational purposes. They do not constitute formal financial, investment, legal, or tax advice. Financial regulations, caps, and limits change frequently. Always consult a qualified professional before making any financial decisions.
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