# Declaration of flat-rate taxpayers - What are the final submission deadlines?

- Published: 2025-12-04
- Topic: Tax & Fiscal
- Source: Lex4you by Securex

What are the tax deadlines for lump-sum taxpayers? You can find the information here.

**Read the full article:** [https://www.securex.be/en/lex4you/employer/news/declaration-of-flat-rate-taxpayers-what-are-the-final-submission-deadlines](https://www.securex.be/en/lex4you/employer/news/declaration-of-flat-rate-taxpayers-what-are-the-final-submission-deadlines)

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