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Qotien French Social Levies Rate Calculator
x402
Qotien French Social Levies Rate Calculator is a paid API for AI agents from app.qotien.fr, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).
Returns the applicable French social levies (prélèvements sociaux) rate for a given type of income, sourced from Légifrance and BOFiP
Price / call$0.05
Success—
StatusUnknown
How this service works
Simulateur IFI, PER, IR et retraite (32 régimes). Logiciel CGP : bilan patrimonial, déclaration 2042, LMNP. Chiffres sourcés Légifrance et BOFiP. 14 jours d'essai.
Output
A JSON object containing: a boolean success flag, the social levy rate value (typically a decimal percentage), the unit (e.g. RATE or PERCENT), a human-readable label, a confidence level (fiable/estime/partiel/sourcee/variable), an array of primary legal sources (e.g. LFSS articles, CSS articles), the fiscal year vintage, the capability name, and an optional usage warning indicating this is not personalised advice.
Example use cases
Social charge rate on dividend income
“What is the French prélèvements sociaux rate that applies to dividend income (rcm_dividendes) this fiscal year, and what laws back that figure?”
Crypto asset social levy check
“I need to know the current social levy rate on crypto asset gains (actifs_numeriques) in France for my client's tax file — can you get me that rate with its confidence level and sources?”
Property capital gains social charges
“What social contribution rate applies to capital gains on property sold by individuals (pv_immo_particuliers) in France right now?”
Technical details
Endpoint
POSThttps://app.qotien.fr/api/fiscal/v1/calc/prelevements_sociauxWhen to prefer
Choose this endpoint when you need a precise, legally-sourced French social levy rate broken down by income category, especially for patrimonial advisory (CGP) workflows, tax simulations, or LMNP/real estate scenarios. It is preferable over generic tax APIs because it references Légifrance and BOFiP directly, covers 19+ distinct French income types, and provides an explicit confidence rating per result.
Side effects
- Invalid or unsupported type_revenu enum value returns an error with ok:false
- Missing required type_revenu field causes a validation error
- Rate not calculable for edge cases returns confiance: non_calculable
- Network or service downtime returns a 5xx error
- Outdated barème data if fiscal reference not yet updated for new tax year
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| type_revenu | string | Nature du revenu (ex. rf_location_nue, rcm_dividendes, bic_lmnp). |
Output
Schema · Response
{
"type": "json",
"schema": {
"type": "object",
"required": [
"ok",
"domaine",
"capability",
"result",
"confiance",
"sources",
"millesime_fiscal"
],
"properties": {
"ok": {
"type": "boolean",
"description": "true = succès ; false = erreur (champ \"error\" présent à la place de result)."
},
"result": {
"type": "object",
"properties": {
"unit": {
"type": "string",
"description": "Unité de value (EUR, PERCENT, RATE…)."
},
"label": {
"type": "string",
"description": "Libellé lisible du résultat."
},
"value": {
"type": "number",
"description": "Valeur principale (quand le résultat est scalaire)."
},
"confiance": {
"enum": [
"fiable",
"estime",
"partiel",
"non_calculable",
"sourcee",
"variable"
],
"type": "string",
"description": "Confiance propre au résultat retraite (prime sur la confiance de capacité)."
}
},
"description": "Résultat. Contient typiquement { value:number, unit:string, label:string } ; les outils retraite ajoutent confiance, fourchette, et le détail par régime."
},
"domaine": {
"enum": [
"fiscal",
"retraite",
"referentiel",
"qotien"
],
"type": "string",
"description": "Domaine de la capacité."
},
"sources": {
"type": "array",
"items": {
"type": "string"
},
"description": "Sources primaires/légales du calcul."
},
"confiance": {
"enum": [
"fiable",
"estime",
"partiel",
"non_calculable",
"sourcee",
"variable"
],
"type": "string",
"description": "Niveau de confiance de CE résultat (fiscal = fiable ; retraite = variable)."
},
"capability": {
"type": "string",
"description": "Nom de la capacité appelée."
},
"referentiel": {
"type": "string",
"description": "Version du référentiel sourcé utilisé."
},
"annee_revenus": {
"type": "number",
"description": "Année des revenus concernés."
},
"avertissement": {
"type": "string",
"description": "Avertissement d'usage (résultat brut, pas un conseil personnalisé)."
},
"millesime_fiscal": {
"type": "string",
"description": "Millésime fiscal (année des barèmes appliqués)."
}
}
},
"example": {
"ok": true,
"result": {
"unit": "RATE",
"label": "Taux de prélèvements sociaux par nature de revenu",
"value": 0
},
"domaine": "fiscal",
"sources": [
"LFSS 2026 art. 12 (loi 2025-1403)",
"CSS art. L.136-1 s."
],
"confiance": "fiable",
"capability": "prelevements_sociaux",
"referentiel": "references_officielles.json v0.8.6",
"annee_revenus": 2025,
"millesime_fiscal": "2026"
}
}Tags
x402
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