when is tax return due

The general deadline for submitting tax returns in Germany is July 31 of the year following the tax year. For example, the tax return for the year 2024 is due by July 31, 2025. If a tax advisor is used, the deadline is extended to the end of February of the year after next (e.g., April 30, 2026 for the 2024 tax return). If the deadline falls on a weekend or public holiday, it is extended to the next working day. Voluntary tax returns have a longer submission period of up to four years after the end of the tax year. In the UK, paper tax returns must be received by HMRC by October 31, and online tax returns by January 31 of the year after the tax year ends. The tax year in the UK runs from April 6 to April 5 the following year. For the tax year from April 6, 2024, to April 5, 2025, the paper return deadline is October 31, 2025, and the online return deadline is January 31, 2026.