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NLTaxCalculator

A free Box 1 & Box 3 tax calculator for anyone living in the Netherlands.

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One email when next year's rates are published - nothing else.

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This tool provides estimates for guidance only and is not tax advice. Always confirm figures with a registered tax advisor or the Belastingdienst before filing.

© 2026 NL Tax Calculator. Built independently, not affiliated with the Belastingdienst.