Estimated tax owed
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2026 rates verified against belastingdienst.nl. Estimate only — not financial advice. For accurate filing, consult an accountant. Simplified model: linear approximation of arbeidskorting + 30% default ZZP deduction (no exact zelfstandigenaftrek/MKB-vrijstelling). 30%-ruling toggle available for employed/mixed scenarios — eligibility not verified. For accurate calculation — Mijn Belastingdienst Zakelijk. Data as of 2026-07-18 · Source: belastingdienst.nl