Tax filing,
the way a fiduciary
would guide you.
A copilot for Swiss taxes. Upload your documents, write a few lines about your year, and we tell you exactly what to enter in your cantonal tax app, one document at a time, at your pace.
Swiss-hosted · deleted with your return · never used to train AI
How it works
Your papers, in any order
Drop salary certificates, bank statements, pillar 3a attestations. Encrypted in transit, stored in Swiss data centers, deleted 24h after you finish.
A note to your fiduciary
One free-text field where you tell us about your year: job changes, leave, a move. Used once to guide the AI, deleted with your return.
Entry by entry
Open your canton's official tax application: VSTax in Valais, ZHprivateTax in Zurich, or whichever app your canton uses. We tell you exactly what to type where, including what the app will auto-cap or auto-calculate. You file, we guide.
Claude Agent
Claude Agent reads your documents and generates your guide. Every instruction comes with confidence language. A persistent disclaimer reminds you to verify each entry in your cantonal tax app. Every return has a dashboard privacy card with a retention countdown, delete, and export. Delete is the same visual weight as save, no dark patterns.
What we read
- Salary certificates
- Bank and broker statements (including stocks, dividends, withholding tax)
- Pillar 3a statements (UBS, Finpension, VIAC, Postfinance, etc.)
- Childcare and daycare invoices
- Health insurance premium certificates
- Property tax documents and rental income statements
- Mortgage interest statements
- Professional development receipts
- Donation receipts (Swiss NGOs)
- Unemployment and loss-of-earnings statements
Cantons & languages
We support all 26 Swiss cantons. Tax field names render in the official language of your canton (German, French, or Italian). The UI speaks English for now; additional UI languages are on our list.
Where your data goes
Documents are stored in Switzerland (Supabase Zürich), the web app runs on Vercel Frankfurt, payments go through Stripe, and Claude Agent reads your documents via Anthropic's API. Everything is wiped within 24 hours of finishing your return. Full sub-processor + retention breakdown on the trust page →
What we don't do yet
- We focus on individuals, not companies. Complex situations need a human advisor.
- We don't integrate with your bank or tax authority. You bring the documents, you file yourself
- We're new. Canton coverage and deduction support are uneven and improving
- We don't claim legal or tax advice. Every number you enter, you verify
Frequently asked
- No. We tell you exactly what to enter in your canton's official tax application (for example VSTax in Valais, ZHprivateTax in Zurich, or whichever app your canton uses), and you file yourself. This is deliberate: your submission stays yours, and we never touch your actual tax return.