Read about
How we compute your tax
How federal, cantonal, and commune scales combine into the final number — including the special cases for Geneva, Basel-Landschaft, Valais, Neuchâtel and the splitting cantons.
Where the data comes from
Per-canton source lineage: which official PDF, CSV or HTML page we read, when, and how we transformed it. Every commune Steuerfuss carries an attribution you can click through.
Embed the atlas on your site
How to drop the Optiqo atlas or a single-commune dossier into any partner site as an iframe. Free, with attribution.
At a glance
- ~2 060 communes across 26 cantons, refreshed yearly via authoritative cantonal sources.
- 26 of 26 cantonal tax scales transcribed from ESTV Kantonsblätter 2026.
- Federal scale from the ESTV Kreisschreiben for direct federal tax (DBG / LIFD).
- Multi-language in EN / DE / FR / IT.
- Live at
optiqo.ch.
Open methodology
Every numerical assumption Optiqo uses is documented. Every commune's Steuerfuss carries a source attribution (e.g. “fin.be.ch Steueranlage 2026 (PDF)”). Every cantonal scale lists its ESTV Kantonsblatt source. The federal scale comes from the ESTV Kreisschreiben.
If you find an error or have a question, email hello@optiqo.ch with the page URL and the discrepancy. We respond within 48 hours.