To complete your Swiss tax return correctly, you need to use the official tool for your canton.
On this page, you’ll find all my practical guides, canton by canton, to help you complete your tax return 2025 step by step, without making a mistake.
Each guide is based on the official tax tool of the canton concerned (ZHprivateTax, VaudTax, Bern TaxMe-Online, etc.) and is aimed at Swiss taxpayers with a “classic” situation (see below for more infos).
Swiss tax return guides, canton by canton
- Zurich: Tutorial ZHprivateTax Tax Return (2026)
- Vaud: Tutorial VaudTax Tax Return (2026)
- Geneva: Tutorial GeTax Tax Return (2026)
- Bern: Tutorial TaxMe-Online Bern Tax Return (2026)
- Aargau: Tutorial eTAX AARGAU Tax Return (2026)
- Valais: Tutorial VSTax Tax Return (2026)
- Fribourg: Tutorial FriTax Tax Return (2026)
- St.Gallen: Tutorial eTaxes St.Gallen Tax Return (2026)
- Solothurn: Tutorial eTax Solothurn Tax Return (2026)
- Thurgau: Tutorial eFisc Thurgau Tax Return (2026)
How does the Swiss tax return work?
In Switzerland, tax returns are managed at cantonal level. Each canton has its own software and specific practical rules, even though the legal basis is federal.
Who are these tax guides aimed at?
I’m mainly targeting Swiss citizens with these criteria:
- Employed
- Single or in a couple
- With or without children
- Renting or owning property in Switzerland
- With rental properties (optional)
- With stock market investments (ETFs and/or equities), in particular US ETFs and their associated DA-1 form
FAQ Swiss tax return
Do I have to use my canton’s software?
Yes, each canton in Switzerland requires the use of its own official tool for filing tax returns.
Are these guides a substitute for a fiduciary?
Yes, that’s what my tax guides are all about: saving you several hundred Swiss francs a year.
After that, there’s nothing to stop you using a trustee the first year if it reassures you that you’re doing everything right. But in subsequent years, my guides will suffice. And they’ll enable you to increase your savings, and put them to work in the stock market (I recommend reading this if you haven’t started investing yet: “How I would invest CHF 10'000 in the stock market in 2026 (crash or not!)
”).
How do you declare a joint account in Switzerland when you are an unmarried couple?
If you are an unmarried couple and you file two separate tax returns in Switzerland, a joint account should not be declared in full on both returns, otherwise it would be taxed twice.
In practice, each person declares their share, generally 50% of the balance and 50% of the interest (unless a different distribution is clearly defined).
The important thing is that 100% of the account is covered in total between the two tax returns and that the amounts are consistent.