{"uid":"cap_LDYWX1Edlt0hTTzKklY1D","slug":"qotien-jeanbrun-tax-deduction-simulator-245bf00b","name":"Qotien Jeanbrun Tax Deduction Simulator","description":"Simulateur IFI, PER, IR et retraite (32 régimes). Logiciel CGP : bilan patrimonial, déclaration 2042, LMNP. Chiffres sourcés Légifrance et BOFiP. 14 jours d'essai.","url":"https://app.qotien.fr/api/fiscal/v1/calc/jeanbrun","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"parts":{"type":"number","default":1,"minimum":1,"description":"Parts de quotient familial (pour la TMI dérivée)."},"situation":{"enum":["Célibataire","Marié(e)","Pacsé(e)","Divorcé(e)","Veuf(ve)"],"type":"string","default":"Célibataire","description":"Situation familiale (pour la TMI dérivée)."},"prix_logement":{"type":"number","minimum":0,"description":"Prix du logement (€). L'assiette amortissable = 80 % (terrain forfait 20 %)."},"type_location":{"enum":["Intermédiaire","Social","Très social"],"type":"string","default":"Intermédiaire","description":"Catégorie de location (taux et plafond annuel croissants)."},"type_logement":{"enum":["Neuf","Ancien rénové"],"type":"string","default":"Neuf","description":"Neuf ou ancien rénové (taux d'amortissement différents)."},"tmi_pourcentage":{"type":"number","maximum":45,"minimum":0,"description":"TMI en points de % (ex. 30) si connue — court-circuite la dérivation depuis le revenu."},"revenu_net_imposable":{"type":"number","minimum":0,"description":"Revenu net imposable du foyer (€) — sert à dériver la TMI pour l'économie d'impôt. Ignoré si tmi_pourcentage fourni."}}},"responseSchema":{"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":"Dispositif Jeanbrun (amortissement bailleur, LF 2026)","value":0},"domaine":"fiscal","sources":["LF 2026 art. 47 (loi n° 2026-103 du 19/02/2026)","CGI (amortissement bailleur — dispositif Jeanbrun)","BOFiP dédié attendu S2 2026"],"confiance":"fiable","capability":"jeanbrun","referentiel":"references_officielles.json v0.8.6","annee_revenus":2025,"millesime_fiscal":"2026"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.25","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.25/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.25","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_1whaBHJHUyDe-sUWBkXBr","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.25","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates the annual tax savings from the Jeanbrun rental amortization device (LF 2026) for a French property, based on housing price, rental category, and taxpayer marginal tax rate.","exampleAgentPrompt":"Using the Jeanbrun amortization device (LF 2026), calculate how much annual tax I'd save on a new apartment costing €350,000 that I plan to rent at the intermediate rate — I'm married with 2 parts and my taxable income is €85,000.","exampleUseCases":[{"title":"First-time landlord tax saving estimate","prompt":"I'm thinking of buying a new flat for €250,000 and renting it out at the intermediate social rate. I'm single with a net taxable income of €60,000. Can you use the Jeanbrun device to tell me how much income tax I'd save each year?"},{"title":"High-income investor TMI optimization","prompt":"I already know my marginal tax rate is 41%. I want to know my annual tax saving under the Jeanbrun amortization scheme for an old renovated property I'm buying for €420,000 to rent in the 'Très social' category."},{"title":"Married couple rental investment comparison","prompt":"My wife and I file jointly with 3 family quotient parts and a household taxable income of €110,000. We're considering a new property at €300,000 to rent at the intermediate rate — what would the Jeanbrun device save us on our tax bill each year?"}],"resultDescription":"A JSON object containing the primary computed tax saving value in EUR, the capability label ('Dispositif Jeanbrun'), the fiscal year (millésime fiscal), confidence level (fiable/estime/etc.), applicable legal sources (e.g. LF 2026 art. 47), and a non-advisory disclaimer. Includes unit, label, and value fields in the result object.","failureModes":["Missing required prix_logement — returns ok:false with error message","TMI value exceeds 45% maximum — validation error","Invalid enum for type_location or type_logement — 400-level error","Neither revenu_net_imposable nor tmi_pourcentage provided — unable to derive TMI, returns non_calculable confidence","Fiscal referential not yet updated for current year — may return estime or partiel confidence","Network/service unavailability — returns ok:false"],"whenToPreferThis":"Use this endpoint when you need to compute the specific tax benefit from the French Jeanbrun landlord amortization device (Loi de Finances 2026, art. 47) for a given property. Prefer it over generic French tax calculators when the user is evaluating a buy-to-let investment under this specific device and needs a sourced, Légifrance/BOFiP-backed computation with confidence indicators. Not suitable for IFI, PER, or retirement simulations — those are separate sibling endpoints on the same platform.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T18:41:25.286Z","isFirstParty":false}