Which Business Expenses Are Safest to Deduct as an Autónomo?

Most autónomos ask one question: can I deduct this expense?

Unfortunately, that question rarely has a simple yes-or-no answer.

A much more practical question is this:

Some expenses are rarely questioned.

Others are perfectly legitimate but require much stronger supporting evidence than many freelancers expect.

Some expenses are also far more likely to be challenged during a tax review, even when they are genuinely connected to the business.

This guide is not about whether an expense is theoretically deductible.

It is about one practical question:

If Hacienda asks about this expense in the future, how easy will it be to prove that it belongs to your business?

Quick Risk Guide

How We Rate Risk

This guide does not estimate whether an expense is legally deductible in theory.

Instead, it estimates how easy the deduction may be to defend if Hacienda reviews your tax return.

The rating is based on:

• Spanish tax rules;
• practical documentation requirements;
• the type of expense;
• whether private use is realistic;
• real tax review cases examined by Autonomo.help.

This is why two expenses can both be potentially deductible but carry very different practical risk.

🟢 Low Risk Expenses

These expenses are usually among the easiest to justify because they exist almost exclusively for business purposes.

• accountant or gestoría;
• tax filing software;
• invoicing software;
• professional insurance;
• domain registration;
• web hosting;
• Cloudflare;
• Stripe fees;
• Wise fees;
• Microsoft 365;
• Google Workspace.

As long as you keep proper invoices and the expense relates to your activity, these are normally more straightforward than consumer devices or household costs.

If you are wondering whether you actually need an accountant for a simple freelance activity, see our guide on whether you really need a gestoría for one or two invoices per month.

AI Tools

Professional AI subscriptions are becoming ordinary business tools for many freelancers, consultants, developers, writers, marketers and remote professionals.

Examples include:

• ChatGPT Plus;
• Claude Pro;
• Cursor;
• GitHub Copilot;
• Perplexity Pro;
• Notion AI.

Unlike consumer electronics, these subscriptions usually have a clearer professional purpose. They are often used for research, documentation, coding, writing, translation, analysis or client work.

Keep invoices and be prepared to explain how the tool supports your professional activity.

AI can also help organize tax information, but it should not be treated as a magic substitute for structured records. We explain this in more detail in our guide on whether AI can prepare Modelo 130 and Modelo 303 in Spain.

Laptop

Many websites simply say:

Yes, laptops are deductible.

Reality is more complicated.

A laptop is an obvious work tool for many freelancers. It is also an obvious personal device.

During a real 2026 VAT review examined by Autonomo.help, AEAT rejected the VAT deduction for a laptop after concluding that exclusive business use had not been demonstrated.

That does not mean laptops are never deductible. It means they may require stronger evidence than many autónomos expect.

Read the full case study here: Can Autónomos Deduct Laptops, Phones and AI Tools?.

Some freelancers also try to reduce equipment costs by buying devices from another EU country without VAT. Before doing that, read our guide on buying VAT-free in Germany using a Spanish VAT number.

Mobile Phone

Phones are essential for many activities:

• client calls;
• Google Meet;
• Slack;
• two-factor authentication;
• banking verification;
• travel and logistics.

They are also personal devices. Because of that, they frequently receive additional scrutiny.

A dedicated business phone, a contract in your name, and a clear explanation of how the device is used may help. But the risk is still higher than for pure professional services.

Tablet

Tablets can be legitimate work tools. They may be used for presentations, client calls, field work, document review, note-taking or testing.

But they are also common consumer devices. Expect similar questions to laptops and phones.

Headset

Headsets with microphones are standard equipment for remote professionals.

They can be used for client meetings, support calls, interviews, webinars, sales calls or technical discussions.

Still, they can also be used for entertainment or personal communication. That makes documentation more important than many people realize.

The broader unresolved issue is discussed in our follow-up case analysis: Hacienda Accepted the Remote Work, Rejected the Tools.

Business Meals

Meals are different from laptops.

For computers, phones and similar devices, the discussion often focuses on whether the asset is used directly and exclusively for the business activity.

Business meals have their own specific conditions. If every requirement is met, the position can be stronger than many people expect.

If you cannot tick every box, defending the deduction becomes much more difficult.

Common mistakes include:

• lunch in your usual town simply because you worked all day;
• paying in cash;
• no qualifying business travel or circumstances;
• no proper invoice or proof;
• assuming that the daily amount is an automatic allowance rather than a maximum legal limit.

The key point is that business meals are not automatically safe. They are conditional. But if the conditions are satisfied, the deduction may be easier to defend than expenses that rely almost entirely on proving exclusive use of a device.

Home Internet

Every remote worker needs internet.

Unfortunately, every household uses internet.

This makes proving exclusive business use much harder. If Hacienda reviews the deduction, you may need to explain how the connection relates to your activity and how any business portion was calculated.

If you are preparing your quarterly records, our quarterly tax filing checklist for autónomos explains which documents are useful to keep before a review starts.

Home Office Utilities

Electricity. Heating. Water.

These are genuine costs of working from home. They are also among the most difficult expenses to allocate correctly between private and professional use.

For many freelancers, the risk is not that home office costs are impossible in theory. The risk is proving the business portion in a way that survives review.

Car Expenses

Cars remain one of the most sensitive deduction categories.

Unless driving is genuinely part of your profession, expect questions about business use, private use, mileage, purpose and documentation.

A remote consultant who occasionally drives to a café is in a very different position from a technician who visits customer sites as part of the service.

What Has AEAT Actually Challenged?

One useful question is not only whether an expense is theoretically deductible.

Has Hacienda actually challenged this type of expense in a real review?

If your tax return is selected for review, Hacienda may request invoices, books, explanations and supporting documents. We explain that process in our guide on what Hacienda may request after filing Modelo 303.

Expenses, IVA and IRPF

Business expenses can matter for both IVA and IRPF.

For IVA, deductible input VAT is usually reported through Modelo 303. For IRPF, deductible expenses reduce taxable business income through Modelo 130 and later through the annual income tax return.

That is why evidence matters beyond VAT. Hacienda may ask not only whether VAT was correctly deducted, but whether the expense was genuinely connected to your economic activity.

If you are preparing your own VAT return, read our step-by-step guide on how to file Modelo 303 yourself in Spain.

If your clients are outside Spain, your income invoices may have no Spanish VAT, but your expense deductions can still matter. We explain that separately in our guide on how to invoice a client outside Spain as an autónomo.

The Real Question

Most guides ask:

Can I deduct this?

A better question is:

If Hacienda asks about this expense in the future, what evidence will I have?

That single question often tells you more about practical risk than a simple yes-or-no answer.

Related Guides

• Can Autónomos Deduct Laptops, Phones and AI Tools?
• Hacienda Accepted the Remote Work, Rejected the Tools
• Hacienda Requested Documents for a VAT Return
• Quarterly Tax Filing Checklist for Autónomos
• How to File Modelo 303 Yourself
• How to Invoice a Client Outside Spain as an Autónomo
• Can I Use Wise as an Autónomo in Spain?
• Can You Really Buy VAT-Free in Germany Using Your Spanish VAT Number?
• Do You Really Need a Gestoría for 1-2 Invoices Per Month?

Frequently Asked Questions

Can autónomos deduct business expenses in Spain?

Yes, but the expense must be linked to the economic activity and properly documented. The practical risk depends on how easy it is to justify if Hacienda reviews it.

Are laptops deductible for autónomos?

They may be deductible when used for the professional activity, but they can be challenged because they may also be used privately. Evidence matters.

Can I deduct ChatGPT or other AI tools?

Professional AI subscriptions may be easier to justify when they are used for business work and proper invoices are kept.

Can I deduct meals as an autónomo?

Only if the legal requirements are met. A normal lunch in your usual town because you worked all day is not automatically a deductible business meal.

What is the safest way to prepare expenses?

Keep invoices, proof of payment and supporting evidence explaining why each expense is connected to your professional activity.

Final Thoughts

Do not optimize your tax return.

Optimize your evidence.

A deduction is most valuable not when it looks good in your bookkeeping, but when you can still explain and support it if Hacienda asks about it years later.