The deadline to file tax returns depends on the country and tax year involved: In the United States, for most individual taxpayers, the tax return is due on April 15th each year (or the next business day if April 15th falls on a weekend or holiday).
In the United Kingdom, paper tax returns must be received by HMRC by October 31st following the end of the tax year, and online tax returns must be submitted by January 31st following the end of the tax year.
In Germany, the general deadline for submitting a tax return for a tax year is July 31st of the following year if filed by the taxpayer directly. If using a tax advisor, this deadline is extended to the end of February two years after the tax year. For example, the 2024 tax return is due by July 31st, 2025, or April 30th, 2026, if assisted by a tax advisor.
To summarize for common situations:
- US individual tax returns: April 15th (or next business day)
- UK paper returns: October 31st; online returns: January 31st following the tax year
- Germany self-filed returns: July 31st following the tax year; with advisor: end of February two years after the tax year
Specific deadlines may vary by country, type of taxpayer, and if extensions or special circumstances apply.
