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. Relax: at Exentax this is what we do every week, we close it before the letter ever lands in your inbox.

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. That is exactly why at Exentax we keep your calendar tight — you stop thinking about deadlines and we close them before they ever bite.

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 US LLC 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. That is exactly why at Exentax we keep your calendar tight — you stop thinking about deadlines and we close them before they ever bite.

The official criterion on deductible expenses is in Law 35/2006 on IRPF and the binding consultations of the Spanish Tax Directorate. 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: 200€ (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 230€/month. Total annual deductible: (250+80) × 12 + 1,500 + 230 × 12 = 3,960 + 1,500 + 2,760 = 8,220€. Reduces IRPF taxable base before applying brackets.

Typical mistakes in deductions

Frequently asked questions

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 (1,200€/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.

How to read the deductible-expense list as a stable framework rather than as a year-by-year hunt

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.

How to read deductible expenses for the self-employed as a stable annual mapping rather than as a recurring debate

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.

Before going further, put numbers on your case: the Exentax calculator compares, in under 2 minutes, your current tax bill with what you would carry running a US LLC properly declared in your country of residence.

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At Exentax we review your case with real data and tell you whether changing structure pays off. book a free consultation of 30 minutes and you leave with a clear plan.

How we close this with the Exentax method

What we see every week in the files that reach us is the same pattern: the question stays as loose ideas, the decision gets postponed and, by the time the tax year closes, people pay more than needed or take on risks that do not pay off. The problem is rarely the rule itself; it is the lack of a written plan with real numbers, owned by someone who understands the case end to end.

What people get wrong

Copying structures seen on social media without modelling their own case against real income, residency and client mix.
Mixing personal money with business cash flow and losing the documentary trail any audit will ask for.
Leaving execution to generic accountants who only file forms, without thinking through the annual strategy or the total cost.

What actually works

Modelling the situation in the Exentax calculator before moving a single piece, to see the total annual cost and not just today's bill.
Separating personal and business flows from day one, with distinct accounts and a living checklist of evidence.
Working with an advisor who sees the pieces together: structure, banking, compliance and residency, not each one in isolation.

If you want to move from doubt to plan, book 30 minutes with Exentax and we walk out of the call with the numbers closed and an operational calendar.

What if HMRC, the IRS or my local tax authority asks about my LLC?

It's the question every client raises in the first consultation, and the short answer is: your LLC isn't opaque, and a properly declared structure closes any inquiry in standard forms. Your tax authority can request the state Certificate of Formation (Wyoming, Delaware or New Mexico), the EIN issued by the IRS, the signed Operating Agreement, the Mercury or Wise statements for the year, the Form 5472 plus pro-forma 1120 you filed, and the bookkeeping that reconciles income, expenses and movements. If all of that exists and is delivered in order, the inquiry doesn't escalate.

What tax authorities do pursue, and rightly, is sham ownership (nominees, paper residency) and undeclared foreign accounts. A well-structured LLC is the opposite: you appear as beneficial owner in the BOI Report when applicable (verifiable at fincen.gov/boi), you sign the bank accounts and you declare the income where you actually live. The structure is registered with the state Secretary of State, with the IRS and, when European banks are involved, inside the CRS perimeter of the OECD standard.

The mistake that really sinks an inquiry isn't having an LLC; it's not attributing the income correctly in your domestic return, not declaring foreign accounts when the year-end balance exceeds the local threshold (€50,000 in Spain via Modelo 720; the equivalent FBAR / Form 8938 in the US for residents; T1135 in Canada), and not documenting related-party transactions between the member and the LLC. Those three fronts are worth closing before any request arrives, not after.

## What an LLC does NOT do

- It does not exempt you from tax in your country of residence. If you live in Spain, France, Germany or Portugal, you are taxed there on worldwide income. The LLC organises your US side (zero federal tax for non-resident SMLLC pass-through, absent Effectively Connected Income); it does not switch off your domestic taxation. The income tax is computed on the attributed profit, not on the dividends actually paid.

- It is not an offshore vehicle or a BEPS scheme. It is a US entity recognised by the IRS, registered in a specific state with physical address, registered agent and annual informational filings. Classic offshore jurisdictions (BVI, Belize, Seychelles) leave no public trace; an LLC leaves a trace in five different places.

- It does not protect you if you commingle funds. The pierce the corporate veil doctrine kicks in as soon as a judge sees the LLC and the member behaving as the same wallet: mixed accounts, personal expenses paid from the LLC, no signed Operating Agreement, no bookkeeping. Three suspicious transactions are enough.

- It does not save you social security contributions at home. If you are self-employed in Spain, France or Germany, your monthly social contribution remains identical. The LLC handles the trading side with international clients; your personal contribution is independent.

- It does not exempt you from declaring foreign accounts. Spain residents file Modelo 720 / 721; UK residents, the SA106; Portugal residents, the Anexo J of Modelo 3 IRS; Germany residents, the Anlage AUS. Those obligations belong to the individual, not to the LLC.

At Exentax we cover those five fronts every year alongside the US federal calendar (Form 5472, pro-forma 1120, FBAR, state Annual Report and BOI Report when applicable). The goal is that no inquiry finds a loose end and that the structure withstands a 5-to-7-year retroactive review.

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For state-specific details, see our Wyoming LLC service page with closed costs and timelines.

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.

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