Overview
- The filing deadline for 2025 returns is 31 July 2026, and tax offices start automatic late fees on 1 March 2027 if nothing is filed.
- You can cut your tax directly by 20% of craft labor up to €1,200 and 20% of household services up to €4,000, but only with itemized invoices and bank transfers.
- Renters can claim eligible services hidden in building service charges by asking landlords for a §35a EStG breakdown or certificate.
- Home office days can be claimed at €6 per day up to 210 days, and the 2025 commute allowance pays 30 cents per kilometer for the first 20 km and 38 cents after that.
- Energy upgrades such as insulation, new windows, or heating replacements earn a 20% tax reduction spread over three years up to €40,000 per property, which cannot be combined with KfW or BAFA funding for the same work.