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Qotien CEHR Calculator — Contribution Exceptionnelle sur les Hauts Revenus
x402
Qotien CEHR Calculator — Contribution Exceptionnelle sur les Hauts Revenus 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).
Calculates the French exceptional high-income surtax (CEHR / CGI art. 223 sexies) based on household marital status and fiscal reference income.
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
Returns a JSON object with: a boolean success flag, the CEHR amount in euros (value + unit + label), a confidence level (e.g. 'fiable'), the fiscal year millesime applied, the legal sources cited (CGI art. 223 sexies, BOFiP BOI-IR-CHR), the capability name, and an advisory disclaimer that the result is not personalized tax advice.
Example use cases
High-income single taxpayer CEHR check
“I'm single with a revenu fiscal de référence of 450 000 euros — can you calculate how much CEHR I owe for this fiscal year?”
Married couple above surtax threshold
“My clients are married with a combined revenu fiscal de référence of 800 000 euros. What is their contribution exceptionnelle sur les hauts revenus according to CGI art. 223 sexies?”
Divorced filer near CEHR threshold
“I'm divorced and my revenu fiscal de référence is 260 000 euros. Do I owe any CEHR, and if so how much?”
Technical details
Endpoint
POSThttps://app.qotien.fr/api/fiscal/v1/calc/cehrWhen to prefer
Use this endpoint when you need a legally-sourced, rule-based calculation of the French CEHR surtax (CGI art. 223 sexies) for a single household, with explicit citation of Légifrance and BOFiP references. Prefer it over generic tax calculators when you need traceable legal provenance and structured JSON output suitable for wealth management workflows (CGP/bilan patrimonial). It handles the married/PACS 500k vs. single 250k threshold distinction natively.
Side effects
- Missing or negative revenu_fiscal_reference returns an error with ok:false
- Invalid situation enum value causes validation error
- Income below CEHR threshold returns value:0 (not an error, but a valid zero result)
- Network or service unavailability returns non-200 HTTP status
- Truncated or malformed JSON body if request Content-Type is incorrect
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| situation | string | Situation familiale (seuils célibataire 250 k / couple 500 k). |
| revenu_fiscal_reference | number | Revenu fiscal de référence du foyer (€). |
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": "EUR",
"label": "Contribution exceptionnelle sur les hauts revenus (CEHR)",
"value": 0
},
"domaine": "fiscal",
"sources": [
"CGI art. 223 sexies",
"BOFiP BOI-IR-CHR"
],
"confiance": "fiable",
"capability": "cehr",
"referentiel": "references_officielles.json v0.8.6",
"annee_revenus": 2025,
"millesime_fiscal": "2026"
}
}Tags
x402
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