Taxation of American 401(k) and Roth IRA in Spain: Key Insights for Expats – Updated January 13, 2025

Last Updated on April 21, 2026 by Bruno Bianchi

When Do I Become a Tax Resident in Spain?

You are deemed a Spanish tax resident and are required to file a Spanish tax return if you spend 183 days or more of the calendar year in Spain. If you’re moving to Spain, understanding when you become a tax resident is key. This status determines how your global income, including retirement accounts like 401(k)s and Roth IRAs, will be taxed. In such cases, what would then be the taxation on an American 401(k) or Roth IRA in Spain?

Understanding Spanish Tax Liability

To establish your tax liability, you must first determine whether your retirement plans are comparable to Spanish pension schemes. Based on current interpretations, here is how 401(k) plans are generally treated:

1. Income Tax on Distributions

During the year, distributions from a 401(k) are regarded as general income and are subject to income tax (Impuesto sobre la Renta) at progressive rates, currently up to 47%.

2. Exemption from Wealth Tax and Modelo 720

Previously, the balance in a 401(k) account was not required to be reported as an asset on the Modelo 720 form, nor was it subject to Spain’s wealth tax (Impuesto sobre el Patrimonio). However, recent feedback and rulings suggest caution (see below).

Roth IRA Tax Implications in Spain

Roth IRAs are treated differently than traditional IRAs in Spain. A 2022 Hacienda Consulta Vinculante V1291-22 clarified their tax treatment and reporting requirements:

1. Taxation on Earnings

• Investment gains, such as yields, interest, dividends, and profits within a Roth IRA, are subject to Spanish income tax (Impuesto sobre la Renta).
• The tax rate is progressive, often reaching up to 26% depending on the amount of income.

2. Modelo 720 Reporting Obligations

• Roth IRAs must be reported annually on Modelo 720, as they provide withdrawal rights similar to life insurance plans.
• Reporting is required even if no withdrawal contingencies have occurred.
• The surrender value of the Roth IRA as of December 31 of the applicable tax year must be included.

3. Wealth Tax

• The investments in a Roth IRA are subject to Spanish wealth tax (Impuesto sobre el Patrimonio).
• Tax is calculated based on the account’s value as of December 31, with rates varying by the autonomous community.

4. Additional Reporting Requirements

The General Directorate of Foreign Trade (Dirección General de Comercio Exterior) or the Bank of Spain (Banco de España) may require additional reporting for informative purposes.

Real-Life Lessons: A Reader’s Experience

We received feedback from a reader who shared his personal experience with the Spanish tax authorities (Hacienda). His case highlights discrepancies in the previous understanding of reporting obligations for IRAs and Roth IRAs:

• Our reader was initially advised not to report his traditional IRA accounts on Modelo 720. However, in 2023, Hacienda determined that IRAs must be reported annually, and the surrender value must be declared for wealth tax purposes. This classification is based on the view that IRAs resemble life insurance plans rather than pension plans.
• As a result, our reader faced penalties and interest for not declaring his IRA accounts in earlier years.

Hacienda Ruling Reference

Readers are encouraged to consult the official Hacienda ruling (Consulta Vinculante V1291-22) for further clarification: Consulta Vinculante V1291-22.

Potential Implications for 401(k) Accounts

While the ruling does not explicitly address 401(k) accounts, similar principles may apply due to the “right of withdrawal” associated with these accounts. Therefore, we recommend consulting a professional to evaluate whether 401(k) balances should also be reported under Modelo 720.

Summary of Key Points

401(k) Accounts

• Income is taxed at progressive rates during distributions.
• Previously exempt from Modelo 720 and wealth tax reporting, but caution is advised.

IRAs (Including Roth IRAs)

• Must be reported on Modelo 720 annually.
• Subject to wealth tax based on surrender value.
• Income generated within the account is taxable.

Planning your move to Spain? Check out our complete Moving to Spain guide, learn about the Non-Lucrative Visa, explore the cost of living in Spain, and discover your Digital Nomad Visa options.

Seek Professional Advice

Given the complexities and evolving interpretations, it is essential to work with an international tax advisor to ensure compliance and avoid penalties.

Disclaimer

This article reflects our understanding based on published Hacienda guidance and community feedback. However, it is not legal or tax advice. Tax laws are complex and subject to frequent updates. For personalized assistance, consult a qualified tax professional. Do you need professional help or advice from expert international tax advisors? Request a consultation here.

Bruno Bianchi CEO & Spain Immigration Expert

Bruno Bianchi is the founder and CEO of Spainguru, Spain's largest expat immigration community with 150,000+ members. Since 2014 he has helped thousands of people relocate to Spain through expert guides, webinars and vetted professional services covering visas, residency, taxes and life in Spain.

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