Have your tax return for the Canton of Solothurn completed

In the 2025 tax year, the Canton of Solothurn had 106 municipalities (from 2026, following the merger around Kriegstetten, there are 104). The simple cantonal tax is derived from taxable income; it is multiplied by the cantonal tax multiplier (104 % in the 2025 tax year) and the tax multiplier of your municipality of residence, plus church tax depending on your denomination.

In 2025, the communal tax multipliers range from 65 % (Kammersrohr) to 145 % (Bolken). This changes nothing about how your tax return is recorded: your municipality of residence is decisive, and in the event of a move within the canton it is generally the one at the end of the year.

With eTax Solothurn, the tax return can be completed directly in the browser and filed without a signature – including supporting documents. The access codes come with the tax documents, and login is doubly secured with an SMS code.

eTax Solothurn is an option for anyone who wants to complete the return themselves. If you want to be sure that every item is recorded correctly and completely, we take care of it for you: we enter your details, discuss the draft with you and prepare the filing.

In practice, we see the same issues time and again: commuters calculate using the old, unlimited rule – since 2023, a cantonal maximum of CHF 7'000 applies. For private vehicles, proof of necessity is missing, so the travel expense deduction is lost entirely. The insurance deduction is not used to the full.

The high third-party childcare deduction of up to CHF 25'000 per child also often goes unused. A specialist checks each item individually and points out missing supporting documents before the return is filed.