About

What this tool does

NetLoon is a net-pay calculator for the Netherlands, for anyone who works here and wants a clear answer to a simple question: what stays in my account after the wage tax? It takes a gross salary and works through the Dutch chain — the combined income tax and national-insurance contributions, minus the two income-dependent tax credits — and shows the result with the breakdown made visible, not hidden behind a single number.

Where the data comes from

The rates and thresholds are drawn from the primary Dutch authorities: the Belastingdienst (the tax office) for the box-1 brackets and the two heffingskortingen tables, and Rijksoverheid for the statutory minimum wage. Context figures such as the average and median income come from CBS, the national statistics office, and are labelled as context — they never enter the calculation. Every figure carries its source, with the confidence level stated honestly: some values are verified quotes from the primary table, others are corroborated by professional secondary sources pending a primary re-confirmation.

How it is built

The calculator is payload-driven: the numbers live in one reviewed data file, separate from the page text, so no rate is hard-coded into the prose and every displayed figure can update the moment a value is signed off. The calculation itself is independently hand-recomputed against worked examples, so the engine is checked, not merely trusted. The design keeps the money grammar honest — net in green, tax and contributions each in their own colour, and the employer’s cost shown separately because it is never taken from your pay.

Honest scope

We would rather be clear about the edges than pretend there are none. This version covers the standard case: employment income for someone below the state-pension (AOW) age, with one employer applying the payroll tax credit. It does not deduct a pension-scheme premium from the taxable base, does not model the AOW-age brackets, and does not apply the 30% ruling — that page is an explainer only. So the result is a solid order-of-magnitude estimate, not a replacement for your payslip or for professional advice.

Publisher

Where the figures stand

The figures shown are the ones in force, taken from the sources named above: the Belastingdienst, the Rijksoverheid and wetten.overheid.nl. Two limits go with that, and the footer of every page says so: if a rule changed recently it may not be reflected here yet, and nobody has signed the figures off. For an official amount the cited source governs, or the Belastingdienst; use the results here to understand how the pieces fit together. If you spot something that looks wrong, the contact page tells you how to reach us.