How to switch?
It's simpler than you think. Estimate your savings and let us handle the rest.
Prepare your salary certificate
Have your annual salary certificate (Lohnausweis) ready. You will find boxes 11 and 12 there.
Calculate your possible savings
Answer a few questions about your personal situation and our calculator will estimate your potential savings.
We file your TOU
If it's advantageous, our team files your ordinary taxation request with your canton.
Canton response
Your canton confirms your switch to ordinary taxation.
Full tax declaration
We complete and send your full ordinary tax declaration.
Receive your refund
Your money arrives directly in your account
Required documents
Prepare these documents before you start
Annual salary certificate
RequiredYour salary certificate (Lohnausweis) with boxes 11 and 12
Deduction receipts
OptionalTransport pass, meal receipts, insurance certificates (optional but recommended)
Tip: Have your annual salary certificate ready. Boxes 11 (net salary) and 12 (source tax) are the essential information. No need for the TOU form — we handle it.
Avoid these common mistakes
These mistakes can delay or block your application
❌Waiting too long
The TOU deadline is March 31. After that, your request is postponed to the next year.
Solution: Run your estimate as soon as possible and order the TOU service before the deadline.
❌Sending after the deadline
Late applications may be refused or delayed by an entire year.
Solution: Submit your application before March 31 for the current tax year. The sooner the better.
❌Forgetting important deductions
Transport, meals, insurance - every forgotten deduction reduces your potential savings.
Solution: Use our calculator which automatically checks all possible deductions for your situation.
❌Not checking your data
Errors in your salary certificate numbers can distort the estimate and TOU request.
Solution: Double-check boxes 11 and 12 on your salary certificate before running the estimate.
Bonne nouvelle: Notre calculateur vous guide à chaque étape pour éviter ces erreurs.