Deadlines, time limits, extensions and extensions for filing tax returns in Switzerland

General information on the extension of time limits

SimpleTax Extends deadlines for tax returns automatically where possible. and, to be on the safe side, to the maximum possible completion date. Unfortunately, many municipalities and cantons lack standardized interfaces and permits, which is why it outside the canton of Zurich It may be necessary for our clients to individual first extension You need to obtain them. This often only takes 5 minutes and can be easily done with the links on this page.

Extension of the deadline for filing tax returns in the Canton of Zurich

Clients of SimpleTax those who did not move during the tax year will automatically extended to 30.11.This gives them the choice of having their tax return completed in the spring or in the autumn. SimpleTax is registered in the trust register of the tax office in Zurich and has the necessary authorization. 

Generally, the local tax office is responsible for processing tax returns. Many municipalities use the Service portal of the Canton of Zurich, where you as a customer can easily extend the deadline for filing your tax return by providing your AHV number.

Extension of the deadline for filing tax returns in the canton of St. Gallen

The canton of St. Gallen extends permits centrally on its website, providing the date of birth and registration ID.

Extension of the deadline for filing tax returns in the canton of Aargau

The canton of Aargau extends permits centrally on its website, providing the date of birth, address number, code and email address.

Extension of the deadline for filing tax returns in the Canton of Schwyz

Extension of the deadline for filing tax returns in the Canton of Zug

Extensions of deadlines for tax returns in the canton of Lucerne

Extension of the deadline for tax returns in the Canton of Bern

Extension of the deadline for tax returns in the canton of Thurgau

In the canton of Thurgau, extensions are only available through the municipal tax office:

Extension of the deadline for filing tax returns in the Canton of Schaffhausen

Extension of the deadline for filing tax returns in the canton of Graubünden

Extension of the deadline for filing tax returns in the canton of Glarus

Extension of the deadline for tax returns in the canton of Basel-Landschaft

Extension of the deadline for filing tax returns in the Canton of Basel-Stadt

Extension of the deadline for tax returns in the canton of Solothurn

Extension of the deadline for filing tax returns in the canton of Uri

Extension of the deadline for filing tax returns in the canton of Nidwalden

Extension of the deadline for filing tax returns in the canton of Obwalden

Extension of the deadline for filing tax returns in the canton of Ticino

Extension of the deadline for filing tax returns in the canton of Valais

Questions and answers about deadlines

What are the possible consequences of missing the tax return deadlines?

If the deadlines for filing your tax return are missed, the tax office can send reminders and may charge late payment interest or fines. After all deadlines have passed, the tax office can conduct a discretionary assessment, in which the tax is determined without considering your information. This can lead to a higher tax burden, as individual deductions and special circumstances are not taken into account.

Can I have my tax advisor extend the deadlines for filing my tax return?

Yes, you can have your tax advisor extend the deadlines for filing your tax return. In cantons with a tax advisor or trustee register, it is customary for the tax advisor to submit a request for an extension to the relevant tax office. The extension must be requested in a timely manner and is generally granted unless there are specific reasons against it. 

Does extending the deadline for filing the tax return cost anything?

In most cases, the first extension is free of charge. However, the tax office may charge a fee for further extensions or particularly late applications. The exact costs and conditions can vary depending on the canton and municipality. It is advisable to contact the relevant tax office or check the information on their website. There are no additional costs for clients using a tax advisor.


extension or postponement of the deadline for filing the tax return

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