Overview
- The statutory deadline for taxpayers with a filing obligation is Friday, July 31, 2026, while anyone using a tax advisor or a wage-tax help association has an automatic extension to March 1, 2027.
- Official data show 87 percent of filed returns produce refunds, with the average refund around €1,240, yet an estimated 12 million employees do not file and may forgo repayments.
- Mandatory filers include the self-employed and business owners, employees who received more than €410 in Lohnersatzleistungen (for example Kurzarbeitergeld or Elterngeld), people with multiple employers and certain tax-class combinations.
- Missing the deadline can trigger a minimum late-filing surcharge of €25 per started month or 0.25 percent of the assessed tax, allow Finanzämter to estimate income to the taxpayer’s disadvantage and in serious cases lead to fines or criminal proceedings.
- Most straightforward returns can be completed using the official ELSTER portal or low-cost commercial software, while complex cases should use a tax advisor; voluntary filings remain possible until December 31, 2029 without a late surcharge.