fiscaliste

fiscaliste is a skill for Claude Code, Codex from romainsimon/paperasse. It costs 302 tokens per session (5,015 once invoked), scanned A, original, MIT.

A French-language tax-advice skill for individual French taxpayers. It covers income tax, property wealth tax, investment income, rental income, employee equity, crypto-assets, and retirement savings plans.

In plain words
What is it for?
It can calculate French income tax from supplied figures, explain the calculation logic when figures are missing, and point to official sources for other tax years.
Why use it?
It helps explain tax rules and work through declarations while requiring each calculation step and warning when its reference data may be outdated.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It can calculate French income tax from supplied figures, explain the calculation logic when figures are missing, and point to official sources for other tax years.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/romainsimon/paperasse/fiscaliste
About the project

Paperasse is a collection of skills that help AI agents handle French business bureaucracy, including accounting, taxation, invoicing, auditing, notarial law, and condominium management. It is intended for users of agents such as Claude Code, Codex, Cursor, and similar tools, and includes connectors for Qonto transactions and Stripe payments.

romainsimon/paperasse · 2,376 stars · on GitHub · agentskill.sh

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add romainsimon/paperasse --skill fiscaliste
Clone the repo
git clone --depth 1 https://github.com/romainsimon/paperasse

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for fiscaliste

README.md
[![agentmods](https://agentmods.dev/badge/skills/romainsimon/paperasse/fiscaliste/github.svg)](https://agentmods.dev/skills/romainsimon/paperasse/fiscaliste)
Your own site
<a href="https://agentmods.dev/skills/romainsimon/paperasse/fiscaliste"><img src="https://agentmods.dev/badge/skills/romainsimon/paperasse/fiscaliste/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for fiscaliste

Your own site · 80×15
<a href="https://agentmods.dev/skills/romainsimon/paperasse/fiscaliste"><img src="https://agentmods.dev/badge/skills/romainsimon/paperasse/fiscaliste.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 302 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,015 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00302 $0.05015
Opus 5 $0.00151 $0.02508
Sonnet 5 $0.00060 $0.01003
Haiku 4.5 $0.00030 $0.00502

Measured 9d ago against content hash fda6551bc27a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

fiscaliste scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/calc_ir.py, scripts/dgfip_oracle.py, scripts/update_data.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

fiscaliste/SKILL.md · 312 lines

How it starts

The opening of the file, as written. The whole thing — 312 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Fiscaliste IA

Conseil fiscal pour les particuliers français. Posture : trouver la solution fiscale optimale dans le cadre légal, pas minimiser à tout prix. Miroir du skill controleur-fiscal (qui cherche les failles côté DGFIP).

Règle Absolue

Ne jamais donner de chiffre sans expliquer la séquence de calcul.

Face à une question fiscale :

  • Si l'utilisateur fournit des chiffres → calculer étape par étape en montrant chaque intermédiaire (revenu brut → RNI → quotient → impôt brut → décote → impôt net).
  • Si l'utilisateur ne fournit pas de chiffres → expliquer la logique et identifier quelles valeurs il faut aller chercher.

Ne jamais inventer un barème. Utiliser exclusivement les valeurs inlinées ci-dessous pour les revenus 2025 (déclaration 2026). Pour toute autre année, renvoyer à impots.gouv.fr.

Fraîcheur des Données

Vérifier metadata.last_updated dans le frontmatter. Si > 6 mois :

⚠️ SKILL POTENTIELLEMENT OBSOLÈTE
Dernière MAJ: [date] — Vérifier les barèmes de la dernière loi de finances.

Sources de vérification : impots.gouv.fr, bofip.impots.gouv.fr, service-public.fr, legifrance.gouv.fr.

Valeurs de Référence — Revenus 2025 (déclaration 2026)

Barème IR (par part)

Tranche Taux
0 € à 11 600 € 0 %
11 600 € à 29 579 € 11 %
29 579 € à 84 577 € 30 %
84 577 € à 181 917 € 41 %
> 181 917 € 45 %

Tranches LFI 2026 (revenus 2025, indexation +0,9 %). Source : art. 197 CGI.

Quotient familial

  • Plafond du gain par demi-part supplémentaire : 1 807 € (enfant à charge)
  • Parent isolé (case T) : plafond 4 273 € pour la première part liée à l'enfant
  • Veuf avec enfant à charge : plafond 4 273 €

Décote (plancher à 0)

  • Célibataire : si impôt brut < 1 982 € → décote = 897 − 0,4525 × impôt brut
  • Couple : si impôt brut < 3 277 € → décote = 1 483 − 0,4525 × impôt brut

Abattements

Revenu Case 2042 Abattement
Salaires 1AJ/1BJ 10 % (min 509 €, max 14 555 €) ou frais réels
Pensions / retraites 1AS/1BS 10 % (min 450 €, max 4 446 €) par foyer
Chômage (ARE) 1AP/1BP 10 % — l'ARE est un revenu de remplacement imposé selon les règles des traitements et salaires (BOI-RSA-BASE-30-50-20) ; l'abattement de 10 % s'applique sur le total salaires + ARE. Se déclare en 1AP/1BP (pas en 1AJ), mais bénéficie bien de l'abattement.
Dividendes (option barème) 2DC 40 %
Dividendes (PFU) 2DC Aucun
Micro-BNC 5TE 34 % (plafond 77 700 €)
Micro-foncier (nu) 4BE 30 % (plafond 15 000 €)
Micro-BIC LMNP longue durée 5ND 50 % (plafond 77 700 €)
Micro-BIC LMNP meublé tourisme non classé 5ND 30 % (plafond 15 000 €)
Micro-BIC LMNP meublé tourisme classé 5NG 50 % (plafond 77 700 €)

Read the full file on GitHub · 312 lines

Files

What ships with it

36 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 312 lines · 302 tokens per session scan A fda6551bc27a

Subscribe to this mod's changes

fiscaliste is a skill published in the GitHub repository romainsimon/paperasse (2,376 stars, last pushed 29d ago), licensed MIT. It adds 302 tokens to every session and 5,015 once invoked, about $0.0015 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Related

Other skills, from other repositories

amlbot

AMLBot integration. Manage data, records, and automate workflows. Use when the user wants to interact with AMLBot data.

membranedev/application-skills · 28 tokens

agb-bei-kreditvertraegen-verbraucherdarlehen

Für AGB bei Kreditverträgen Verbraucherdarlehen: ordnet Norm, Beweislast und Gegenargument; Ergebnis: Prüfprodukt mit Risiko und nächstem Schritt.

Klotzkette/claude-fuer-deutsches-recht · 49 tokens

agb-in-kapitalanlagen-effektenhandel

Für AGB in Kapitalanlagen Effektenhandel: ordnet Norm, Beweislast und Gegenargument; Ergebnis: Prüfprodukt mit Risiko und nächstem Schritt.

Klotzkette/claude-fuer-deutsches-recht · 41 tokens

internal-controls-and-audit

Designs and tests controls over financial reporting — segregation of duties, approval limits, evidence, and preparing for audit. Use this to design controls for a process, prepare for an external audit, respond to an audit finding, set approval thresholds, or assess where a small team's segregation of duties is…

cbrock84/headcount · 67 tokens

capital-structure-and-covenants

Decides how the business is financed and what that financing then requires of it — debt versus equity, weighted average cost of capital as a hurdle rate, how much leverage cash flow can carry, and the financial, affirmative and negative covenants, definitions, test dates and cure rights that come attached. Use this to…

cbrock84/headcount · 102 tokens

revenue-recognition

Determines when and how revenue is recognized — performance obligations, contract terms that change the answer, and the deal structures that create accounting problems. Use this to work out how a contract should be recognized, review a non-standard deal before it is signed, understand deferred revenue, or spot terms…

cbrock84/headcount · 69 tokens