Managing Expenses and Deductions as an Autónomo

Maximize your tax savings by properly tracking and deducting business expenses

Last updated: March 9, 2025

Keeping track of your business expenses is crucial for reducing your taxable income and reclaiming IVA (VAT) on purchases. As an autónomo in Spain, understanding which costs you can deduct—and how to properly document and record them—can save you significant money on both your IRPF (income tax) and IVA returns.

This guide provides practical advice on which expenses are deductible, the differences between IVA and IRPF deductions, and best practices for recordkeeping. By following these guidelines, you'll be better prepared for quarterly and annual filings and ensure you remain compliant with Spanish tax laws.

Tip

Start tracking your expenses from day one. Good recordkeeping makes all future tax filings smoother.

1. Why Keep Track of Expenses?

Lowering Your Tax Bill

Every deductible expense reduces your net taxable income, meaning you pay less IRPF. Similarly, if you pay IVA on business purchases, you can reclaim it as a credit on your IVA returns.

Legal Compliance

Spanish law requires that you keep receipts and invoices for all deductible expenses for at least 4 years. This documentation is essential in case of an audit.

Organizational Benefits

A systematic record of your expenses helps you track cash flow, manage your budget, and easily complete your quarterly Modelo 130 (income tax) and Modelo 303 (IVA) filings.

Best Practices

  • Set up a dedicated system—whether a spreadsheet or accounting software—to log every expense as soon as it occurs.

  • Save both digital copies (scanned PDFs) and physical copies whenever possible.

  • 2. Deductible Expenses

    Here are common categories of expenses that you can typically deduct as an autónomo:

    Home Office Expenses

    What Qualifies: If you use part of your home exclusively for business, you can deduct a portion of your rent, utilities, and maintenance expenses.

    How to Calculate: Typically based on the proportion of your home's square footage dedicated to business use.

    Equipment and Supplies

    Items: Computers, phones, office furniture, software subscriptions, and other tools that are directly related to your work.

    Deduction Rules: You may be able to deduct the full cost or depreciate expensive items over several years.

    Professional Services

    Examples: Fees for accounting, legal advice, or consulting services that support your business operations.

    Travel and Transportation

    Allowable Costs: Business-related travel expenses, including mileage for using a vehicle, public transportation, lodging, and meals (subject to limits).

    Vehicle Expenses: For vehicles used both personally and for business, only 50% of the IVA paid is generally deductible. If the vehicle is used exclusively for business, you may deduct 100% of the IVA.

    Communication Costs

    Examples: Internet, telephone bills, and mobile phone expenses if they are used for work.

    Other Expenses

    Include: Marketing, training courses, insurance premiums, and other costs directly related to your business activities.

    Note

    Some expenses may be subject to percentage limits or require prorating between personal and business use. Always be sure to document the rationale for the percentage claimed.

    3. IVA vs. IRPF Deductions

    IVA (VAT) Deductions

    What It Means: The IVA you pay on business expenses is generally deductible (reclaimable) on your IVA return (Modelo 303).

    Key Point: For mixed-use items like vehicles, only 50% of the IVA is deductible unless the vehicle is used exclusively for business.

    Recordkeeping: Ensure your invoices clearly show the IVA amounts paid so you can match them against your IVA returns.

    IRPF (Income Tax) Deductions

    How They Work: Deductible expenses reduce your net income, which in turn lowers the IRPF you owe.

    Calculation: The net expense (the cost after subtracting any IVA reclaimable) is what lowers your taxable income.

    Important Distinction: While IVA deductions give you a credit or refund, IRPF deductions directly reduce your income tax liability.

    4. Documentation Requirements

    To ensure your deductions are accepted by Hacienda, keep the following:

    Invoices and Receipts

    Originals (or clear, legible digital copies) that include your name/NIE, supplier VAT details, and a detailed breakdown of costs.

    Proof of Payment

    Bank statements or payment receipts that show when expenses were paid.

    Record Retention

    Maintain these documents for at least 4 years.

    Organization Tips

  • Use a consistent file naming system and digital backups.

  • Regularly update your records and cross-check with your accounting ledger.

  • 5. Recording Expenses

    Methods for Keeping Track

    Spreadsheets

    Set up columns for date, vendor, description, net amount, IVA paid, IRPF adjustments, and total expense.

    Invoicing/Accounting Software

    While we're not recommending a third‑party tool right now, sign up for our upcoming automated tax assistant to eventually streamline this process!

    Best Practices

    Regular Updates

    Update your expense log weekly or monthly.

    Reconciliation

    Periodically reconcile your expense records with your bank statements and invoices.

    6. Place in the Process

    Managing expenses and deductions is an ongoing task from the moment you start working as an autónomo. Proper expense tracking is critical:

    Before Filing Taxes

    Record every expense accurately to make quarterly Modelo 303 (IVA) and Modelo 130 (IRPF) filings smoother.

    For Compliance

    Good recordkeeping ensures you're ready for any tax audits and that you maximize your deductions.

    Building a Habit

    Starting early and staying organized saves time and money over the long run.

    7. Final Thoughts and Best Practices

    Be Consistent

    Dedicate time each week to update your records.

    Keep Everything

    Don't throw away receipts; every invoice matters.

    Review Regularly

    Check that your records match your accounting system before each quarterly filing.

    Prepare for Growth

    As your business grows, your expense tracking system should evolve. Our upcoming automated tax assistant will help you manage this effortlessly—so join our waitlist today!

    Want to stay up to date?

    Subscribe to our newsletter for Spanish tax tips, updates, and more.