Being an autónomo in Spain offers incredible freedom, but navigating the strict rules of the Agencia Tributaria (Hacienda) can feel like a full-time job. With the new 2026 regulations requiring all digital wallet transactions—including Bizum and Revolut—to be fully reported, keeping clean financial records is more vital than ever.
To help lower your quarterly tax bills, here are three key rules for deducting expenses safely.
1. The “Home Office” Proportion
If you work from home, you cannot simply deduct your entire electricity or internet bill. Hacienda allows you to deduct 30% of your supply expenses, but only in proportion to the square meterage of your home that is officially registered as your workspace.
2. The Strict Rules on Vehicles
Many freelancers attempt to write off their personal cars, but tax inspectors are notoriously strict regarding vehicles. Generally, you can only deduct 50% of the IVA (VAT) on fuel and maintenance. To deduct 100%, the vehicle must be used exclusively for your business activity (such as a commercial delivery van) and registered accordingly.
3. The “Difficult to Justify” Buffer
To slightly ease the administrative burden, the Spanish tax system includes a built-in deduction for minor expenses that are hard to prove. For standard autónomos operating under the direct estimation system, you can automatically deduct 7% of your net yield (3% for corporate autónomos) for these expenses, providing a modest buffer without needing a stack of physical receipts.
Let Us Maximize Your Returns
Don’t leave your hard-earned money on the table, and certainly don’t risk a tax penalty from over-claiming. At [Your Company Name], we help freelancers maximize their allowable deductions while staying perfectly compliant with the latest 2026 regulations.
