Deductible expenses for Spanish self-employed in 2026: practical list

2026 can deduct an extra 7% of general expenses. Software, training, vehicle, home-office utilities, per diems, advisory, marketing and much more. Updated list of deductible expenses for autonomos in 2026, with criteria, limits and common mistakes.

A Spanish autonomo's tax bill depends less on the marginal rate and more on the expenses they manage to document. The gap between someone declaring 50,000 euros of net income and someone declaring 35,000 on the same invoicing usually lies in bookkeeping discipline, not tricks. This guide compiles the practical list of currently deductible expenses, the criteria for activity allocation, the legal limits the Spanish Tax Agency watches especially closely and the mistakes that every year trigger avoidable adjustments and penalties. Exentax keeps the file ready so the next review finds evidence, a documented operating file.

General criteria: necessary, linked and justified

For an expense to be deductible it must meet three conditions: be linked to the economic activity, be properly documented (invoice, not generic receipt) and be recorded in the autonomo's accounting books. Without any one of the three, the Spanish Tax Agency can reject the deduction in any review. The invoice must include your NIF, the supplier's, date, specific description and VAT breakdown where applicable. Cash payments above 1,000 euros between professionals are banned by the Anti-Fraud Law and mean loss of deduction plus a separate penalty. Exentax documents the point with source records, a clear owner and the next filing decision.

Software, digital tools and subscriptions

The whole digital stack of an autonomo is fully deductible: hosting, domains, invoicing software, design tools, IDEs, generative AI subscriptions, email services, cloud storage, ERP, CRM, course platforms, plugins, annual and monthly licences. The invoice must be issued to your NIF and, if the supplier is in the EU, follow the reverse charge mechanism on Form 303. Personal Netflix or Spotify subscriptions are not deductible even if you use them partially for inspiration; the Spanish Tax Agency requires exclusively professional use.

Vehicle, transport and per diems

The vehicle is one of the most monitored expenses. The Spanish Tax Agency only admits 50% VAT deduction and 50% of the expense for autonomos who can prove partial activity allocation (renting, fuel, maintenance, tolls, parking). Only commercial agents, hauliers, driving schools and similar can deduct 100%. Travel per diems are capped at 26.67 euros daily in Spain and 48.08 abroad, always with receipts and real displacement beyond a normal working day. Public transport passes are fully deductible if professional use is justified.

Home office: utilities and home proportion

If you work from home, you can deduct up to 30% of the home percentage allocated to the activity on utilities (electricity, water, gas, internet, telephony). So: if you have a 100 m² flat and have informed the tax agency that you allocate 20 m² (an office), 30% of 20% of the bill is deductible. Activity allocation must be formally declared on Form 036/037 and recorded in the property register; in rentals, the contract must allow office use. Furniture, equipment and office improvements are fully deductible, with depreciation where applicable.

Advisory, training, marketing and professional expenses

Tax, accounting and labour advisory fees are fully deductible. Training is deductible if linked to the activity: online courses, conferences, technical books, professional publication subscriptions, masterclasses. So is marketing: Meta, Google, LinkedIn, TikTok campaigns, affiliate platforms, agency, lead generation, photographer, graphic design. Payment-gateway fees (Stripe, PayPal, Redsys, GoCardless) and marketplace commissions are deductible as financial or operating expense per booking. Good categorisation makes Form 130 reflect reality correctly.

Common mistakes and the structural alternative

The mistakes that generate most penalties: claiming family meals as per diems, personal fuel without documented professional use, personal clothing invoiced as uniform without being one, client gifts above 1% of turnover and, above all, expenses without invoice. If your activity is 100% digital, a <a href="/en/blog/us-llc-vs-spanish-autonomo-structure-banking-tax">US LLC</a> lets you document expenses under US criteria (ordinary and necessary), considerably broader and more flexible than the Spanish ones, while keeping full traceability for your residence-country return. The Exentax approach is practical: confirm the data, prepare the evidence and close the next step.

The official criterion on deductible expenses is in <a href="https://www.boe.es/buscar/act.php?id=BOE-A-2006-20764" target="_blank" rel="noopener">Law 35/2006 on IRPF</a> and the binding consultations of the <a href="https://petete.tributos.hacienda.gob.es/" target="_blank" rel="noopener">Spanish Tax Directorate</a>. Documenting well today saves a lot tomorrow: every archived invoice is one euro less for the Treasury later.

Detailed deductible expenses table by category

Practical cases: what to deduct and what not

Case 1. Developer with home office. You live in an 80 m² flat with a 12 m² office assigned to the activity (15% allocated). Monthly utilities: 206€ (electricity + gas + internet). Deduction: 200 × 0.15 × 0.30 = 9€/month = 108€/year. If you also declare proportional rent, add 15% of rent. Mandatory documentation: IAE registration with allocated percentage and utility invoices in your name.

Case 2. Advisor with professional vehicle. You buy a Tesla Model 3 for 47,000€, 100% professional use (client visits, no other car). Deductible: amortisation over 8 years (5,875€/year), full insurance, maintenance, airport parking during trips, tolls. Spain's tax authority requires a professional travel log with mileage and reason. Without log, risk of reclassification to mixed use (50%).

Case 3. Graphic designer with coworking. Coworking membership 250€/month, software (Adobe + Figma) 80€/month, annual training 1,500€, self-employed quota 206€/month. Total annual deductible: (250+80) × 12 + 1,500 + 206 × 12 = 3,960 + 1,500 + 2,760 = 8,220€. Reduces IRPF taxable base before applying brackets.

Typical mistakes in deductions

At Exentax, the answer starts from the file: facts, documents, deadline and follow-up.

FAQ on Deductible expenses for Spanish self-employed in 2026

Can I deduct the gym? Only if you justify it's necessary for the activity (models, TV presenters, professional athletes). For other professions, not deductible even if it improves health.

And university training? If directly related to your activity and to expand professional knowledge, yes. Executive masters usually accepted. A second unrelated degree, no.

Are crypto investments expenses? No. They're investments, not expenses. Their losses or gains are declared in IRPF savings base, not in business income.

My private health insurance? Up to 500€/year (1,500€ with disability) per family unit member included. If your premium is 100€/month (1,206€/year), you deduct the first 500€.

Can I deduct a course paid in advance for 3 years? No. The expense is allocated to the year the service is rendered. If a 3-year course, deduct 1/3 each year, not all in the first.

What if I lose an invoice? Spain's tax authority allows reconstruction via bank statement + supplier certificate + sworn declaration. The process is cumbersome and frequently rejected. Better: digital archive (Drive, Notion, manager) updated monthly.

Deduct only expenses tied to the activity

The list of deductible expenses for autónomos reads more usefully when it's treated as a stable framework rather than as a year-by-year hunt for new categories. The categories that genuinely qualify rarely change from one year to the next, and the recurring deductibles dominate the total far more than the occasional ones.

Operating checkpoint: Deductible expenses for Spanish self-employed in 2026

Deductible expenses for the self-employed read more usefully when they're treated as a stable annual mapping between the type of activity, the type of expense and the deductibility rule that applies, than as a recurring debate. The mapping doesn't change month to month, and a short note in the activity folder helps.

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At Exentax we build the evidence file behind your expenses so deductions do not depend on memory, screenshots or hope. <a href="/en/book">Book a strategic review</a> and clean the expense policy before filing.

How the home-office proportion is documented without surprises

The deduction for home-office utilities (electricity, water, gas, internet) requires that the freelancer has notified the AEAT, via Form 036/037, the percentage of the dwelling allocated to professional activity. That percentage must be defensible: in practice we recommend basing it on a simple sketch of the dwelling indicating the rooms used exclusively for the activity (and the proportion of shared rooms used for it), with a date and a note in the file. Once that percentage is registered, the deductible portion of the utility is 30% of the percentage of the dwelling allocated to the activity, applied each invoice. The most common mistake we see is freelancers deducting 30% of the full utility bill (instead of 30% of the proportional part), which produces a routine adjustment when the AEAT reviews the year. The clean approach is to register the percentage in writing, document the rooms with a brief sketch, and apply the formula consistently across the four quarters.

Three deduction conversations we have at every annual review

The first conversation is around training: the rule allows deduction of training directly linked to the activity, but in practice the AEAT looks closely at the link between the course content and the codes of the activity registered. Keeping the course syllabus and a one-paragraph note explaining how the training applies to current or planned client work in the file makes the deduction defensible. The second conversation is around vehicle expenses: for most freelancers without exclusive professional vehicle use, the safer answer is to limit deductions to documented business trips with kilometres logged, rather than attempting to deduct general fuel and maintenance, which the AEAT routinely adjusts. The third conversation is around equipment depreciation: laptops, monitors and similar work tools above a small ticket are deducted via amortisation tables, not as a one-shot expense, and keeping the original purchase invoice with serial number is the cleanest paper trail when an item is later sold or scrapped.

A practical deductions checklist before each quarterly closing

Before each quarterly Form 130 filing, we run a four-step checklist with the autónomo. Step one: verify that every supplier invoice for the quarter is in the file with full identification (supplier name, NIF, date, amount, VAT detail and, where applicable, the activity link in one line). Step two: separate strictly personal expenses from business expenses for any payment method that is mixed (a credit card used for both is the most common source of confusion at this step), and tag each expense as personal or business in the bookkeeping. Step three: verify that the home-office utility proportion has been applied correctly, that the registered percentage in Form 036 has not changed and that no seasonal anomaly inflated a single bill (for example a one-off repair that should not be deducted). Step four: review the quarterly net-income result against the year-to-date projection and confirm with the autónomo whether any timing decision (advance an expense, defer an invoice) is on the table for the closing month before the quarter shuts.

When the AEAT reviews a quarter and what to have ready

The AEAT can request supporting documentation for a Form 130 result during the four years that follow the filing, with the most common review window being the year following the annual IRPF return. The documentation kit we keep ready per quarter is small and predictable: the income summary by client and date, the expense ledger with category, supplier, date and amount, the invoice copies (or scans) for any expense above a small ticket, the bank statement matching the cash movements, and a one-page note explaining any unusual line. When the request arrives, the response time is short (typically ten working days), so the cost of having the kit ready is far smaller than the cost of reconstructing it from scratch under deadline pressure. We have seen many clients absorb a routine review without friction simply because the kit was kept current month after month; we have also seen the opposite, where a missing invoice or an unmatched bank line opened the door to a wider review of the year.