Tax Return Deadline Extension Thurgau

A deadline extension gives you additional time to prepare a complete tax return. The request should be made with the responsible authority before the original deadline expires.

When an extension may be useful

An extension can be useful when important documents are still missing or the return cannot be completed properly by the current deadline.

Check the responsible authority

Check the filing deadline that applies to you and identify the responsible tax authority. Submit the extension request in good time rather than after the deadline has passed.

Request the extension in good time

Keep the confirmation and note the new filing date. Use the additional time to obtain only the documents that are actually missing.

What to do after an extension

The extended period should be used to complete and organise the return carefully.

Prepare the tax return afterwards

Add missing salary statements, bank records, pension evidence and any other relevant documents, then review the completed return before filing.

Check the original deadline
Request the extension in time
Use the new deadline for complete preparation

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