KatashovTax
Tax
consulting

Dutch tax tools for the Netherlands

Gross-to-net salary, effective tax rate, ZZP, Box 3 and investing through a BV —interactive models for quick scenario calculations.

LiveSalary2026
Dutch income tax calculator
Simple employee salary calculator: annual gross, net income, Box 1, general tax credit, labour tax credit, 13th salary, 8% holiday allowance and annual bonus.
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Live2026
Effective tax rate
Interactive comparison of employee, ZZP, ZZP starter and BV + DGA scenarios in the Netherlands: effective tax rate, net cash, retained BV profit and investment deductions.
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LiveZZP2026
ZZP tax optimization
Multi-year calculator for investments, KIA and depreciation planning: effective tax rate by year, net cash, starter rule and remaining write-off balance.
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LiveBox 3BV2026
Box 3 and BV investments
Compare personal Box 3 investing, paper-gain taxation and investing through a BV: capital inside the BV, after-withdrawal result, VPB, Box 2 and annual BV costs.
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