How the Ukraine net salary calculator is verified

Inputs

Input	Field	Type
Зарплата брутто / міс (UAH)	`grossMonthly`	number

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 value	Field	Formula (JSONata)
ПДФО (18%)	`pdfl`	`$round(grossMonthly * $const.pdflRate, 2)`
Військовий збір (5%)	`military`	`$round(grossMonthly * $const.militaryRate, 2)`
На руки / міс	`netMonthly`	`$round(grossMonthly - pdfl - military, 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.

Constant	Value
`pdflRate`	0.18
`militaryRate`	0.05

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 — S1 25,000 UAH

given `grossMonthly`	25000
expect `pdfl`	4500
expect `military`	1250
expect `netMonthly`	19250

Case 2 — S2 8,000 UAH (minimum wage)

given `grossMonthly`	8000
expect `pdfl`	1440
expect `military`	400
expect `netMonthly`	6160

Sources

ДПС України (tax.gov.ua) · checked 2026-08-02

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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