Frontier: Guide Frontalier

CvB

About this app

Frontier is an independent application, developed by an individual. It is neither affiliated with, nor endorsed by, nor does it represent any French or Swiss government agency or administration.

Frontier is the free app for cross-border workers between Switzerland and France — Geneva, Vaud, Valais, Haute-Savoie, Ain, and Doubs. Calculate your net Swiss salary, compare your taxes (withholding tax vs. income tax), your health insurance (LAMal vs. CMU), and manage your G permit, all in one place.

💼 Net Swiss salary by canton (AVS/AI/APG, unemployment, LPP, accidents)
📊 French ↔ Swiss taxes, quasi-resident, TOU
🏥 CMU vs LAMal
🏦 Pension plans: AVS, LPP, 3rd pillar, buybacks
🏠 Mortgage in France with Swiss income
💱 EUR/CHF exchange rate updated hourly on weekdays, threshold alerts
🔔 Procedures: G permit, insurance, declarations, teleworking
🚆 Transportation: SBB, Unireso, vignette
📈 Swiss salary scales

100% free, no subscription, no in-app purchases, usable without creating an account.

OFFICIAL SOURCES — All official information in the app (contributions, rates, thresholds, permit rules, taxation, health insurance) comes exclusively from these sources, also listed in the app (Profile → Official Sources):
• Old-Age and Survivors' Insurance (OASI)/Disability Insurance (DI)/Loss of Earnings Compensation (LEC)/Unemployment Insurance, 1st and 3rd pillars: https://www.ahv-iv.ch/fr
• Occupational Pension Plan (2nd pillar): https://www.bsv.admin.ch/bsv/fr/home/social-insurance/bv.html
• Accident Insurance: https://www.suva.ch/fr-ch
• Withholding Tax (Geneva): https://www.ge.ch/impot-source/calculette-baremes-perception-impot-source
• Temporary Worker and Quasi-Resident: https://www.ge.ch/demande-rectification-taxation-ordinaire-ulterieure
• Teleworking: https://www.ge.ch/imposition-du-teletravail-personnes-frontalieres
• 3rd pillar, LPP buybacks: https://www.ge.ch/impot-prevoyance-retraite-du-2e-3e-pilier · https://www.estv.admin.ch/dam/fr/sd-web/yQgKmvu80LEr/dbst-ks-2025-1-018a-dv-fr.pdf
• Vaud / Valais taxes: https://www.vd.ch/etat-droit-finances/impots · https://www.vs.ch/web/scc
• Federal law (Art. 99a LIFD): https://www.fedlex.admin.ch/eli/cc/1991/1184_1184_1184/fr
• G permit: https://www.ge.ch/demander-permis-travail-frontalier https://www.vd.ch/ · https://www.vs.ch/web/sict/permis-de-travail · https://www.sem.admin.ch/sem/fr/home.html
• Wages: https://statistique.ge.ch/ · https://www.seco.admin.ch/fr/ · https://www.bfs.admin.ch/bfs/fr/home.html
• Health insurance (LAMal): https://www.bag.admin.ch/fr/assurance-maladie-travailleurs-frontaliers-en-suisse
• Motorway vignette: https://www.bazg.admin.ch/fr/vignette-electronique-achat-portal-via
• Income tax (France): https://www.impots.gouv.fr/accueil · https://www.service-public.gouv.fr/particuliers/vosdroits/F1419 · https://bofip.impots.gouv.fr/
• Texts of Law (social security, finance): https://www.legifrance.gouv.fr/
• Cross-border workers' CMU (Universal Health Coverage): https://www.urssaf.fr/accueil/services/services-particuliers/travailleur-frontalier-suisse/declarer-revenus-frontalier.html • https://www.ameli.fr/assure/droits-demarches/europe-international/travailleur-frontalier-suisse
• Zero-interest loan: https://www.service-public.gouv.fr/particuliers/vosdroits/F10871
• Family benefits: https://www.caf.fr/
Other (unofficial) data: Open Exchange Rates (https://openexchangerates.org/), ECB historical data (https://www.ecb.europa.eu/stats/policy_and_exchange_rates/euro_reference_exchange_rates/html/eurofxref-graph-chf.fr.html), tariffs Transport information is available on the operators' websites (https://www.sbb.ch/fr).

This information is for guidance only and does not replace the official sources listed above or professional advice. Frontier is not a financial institution.

Support: [e-mail]
Website: https://www.frontier-ch-fr.com

What’s new

Première version publique de Frontier : simulateur de salaire net, comparaison fiscale France/Suisse, CMU vs LAMal, prévoyance (AVS, LPP, 3e pilier), suivi Permis G et alertes de taux EUR/CHF.