How the Estonia net salary calculator is verified

Inputs

InputFieldType
Gross monthly salary (EUR)grossMonthlynumber

The formula

Each derived value below is computed by the Valem engine from the expression shown, in this order. Nothing else runs — there is no hidden code path.

Derived valueFieldFormula (JSONata)
Unemployment insurance (1.6%)unemploymentInsurance$round(grossMonthly * $const.unemploymentRate, 2)
Funded pension (2%)fundedPension$round(grossMonthly * $const.pensionRate, 2)
Taxable incometaxableIncome($b := grossMonthly - unemploymentInsurance - fundedPension - $const.basicExemption; $round($b > 0 ? $b : 0, 2))
Income tax (22%)incomeTax$round(taxableIncome * $const.incomeTaxRate, 2)
Total DeductionstotalDeductions$round(unemploymentInsurance + fundedPension + incomeTax, 2)
Net / monthnetMonthly$round(grossMonthly - totalDeductions, 2)
Net / yearnetAnnual$round(netMonthly * 12, 2)

Rates and thresholds

The expressions above read these as $const. They are the figures the annual refresh replaces, so they live as data rather than being written into the formulas — which is what makes a year-on-year change a one-line diff instead of an edit to arithmetic.

ConstantValue
unemploymentRate0.016
pensionRate0.02
basicExemption700
incomeTaxRate0.22

Test vectors (2)

Every case is executed against this model on each build, by the Java engine and independently by a JavaScript one. A mismatch of a single cent fails the build, so the page cannot ship advertising a figure the model no longer produces.

Case 1 — 2000 EUR gross nets 1657.84 under 2026 defaults

given grossMonthly2000
expect unemploymentInsurance32
expect fundedPension40
expect taxableIncome1228
expect incomeTax270.16
expect netMonthly1657.84
expect netAnnual19894.08

Case 2 — at 700 EUR gross the basic exemption zeroes income tax

given grossMonthly700
expect taxableIncome0
expect incomeTax0
expect netMonthly674.8

Sources

Check it yourself — and reuse it

The whole model as JSON — inputs, outputs, formulas, vectors and sources in one re-runnable document.

This model is published under CC BY 4.0: use it, adapt it, build on it, with attribution. The licence covers the model — the expression of each rule and the arrangement of the catalog. The rates and thresholds are law, and nobody licenses those; the sources above are where they come from.

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