How the Argentina patente calculator is verified
Inputs
| Input | Field | Type |
|---|---|---|
| Valuación del vehículo (ARS) | value | number |
| Jurisdicción | jurisdiccion | string |
| Alícuota si « Otra » (fracción, ej. 0.032) | customRate | 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) |
|---|---|---|
| Rate | rate | ($s := jurisdiccion; $s = 'CABA' ? $const.rateCABA : $s = 'PBA_BAJA' ? $const.ratePBABaja : $s = 'PBA_ALTA' ? $const.ratePBAAlta : customRate) |
| Patente anual | patente | $round(value * rate, 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 |
|---|---|
rateCABA | 0.035 |
ratePBABaja | 0.01 |
ratePBAAlta | 0.045 |
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 — C1 CABA value 20M ARS at 3.2%
given value | 20000000 |
|---|---|
given jurisdiccion | other |
given customRate | 0.032 |
expect patente | 640000 |
Case 2 — C2 value 30M ARS at 4%
given value | 30000000 |
|---|---|
given jurisdiccion | other |
given customRate | 0.04 |
expect patente | 1200000 |
Sources
- AGIP — patentes CABA · checked 2026-08-02
- ARBA · 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.
← Back to the Argentina patente calculator
Built with Valem — a live, verifiable calculator you can fork and embed.