How Spain taxes US retirement accounts: 401(k), IRA and Roth
If you move to Spain you don't get to keep US tax labels. Spain taxes residents on worldwide income, so 401(k) and traditional IRA withdrawals are normally taxed in Spain, and Roths are trickier than you think. Here's what to expect, what to file and the documents you must gather.
By Iria Mos·Editor — money, healthcare and housing
Move to Spain and you become taxable on worldwide income — that includes 401(k) and IRA distributions. Expect to report them on your Spanish IRPF return.
Roth IRAs are not automatically tax-free in Spain. Practice varies; many advisors treat Roth distributions as taxable unless you can prove otherwise.
Declare foreign accounts if they exceed thresholds (Modelo 720) and expect pension income to affect your Spanish tax rate and possible wealth tax.
Get a Spanish gestor before your first withdrawal. The paperwork and treaty issues are fiddly; a gestor will save you months of back-and-forth with Hacienda.
The mistake people make: assuming US tax labels travel with the money
Most people moving to Spain assume a 401(k) is taxed in the US and a Roth stays tax-free everywhere. That’s the mistake. Spain taxes residents on worldwide income. If you become a Spanish tax resident, Spain will want its share when you take money out — regardless of the US label. The US tax treatment still matters (you’re a US citizen for tax purposes unless you renounce), but it doesn’t stop Spain from taxing the same distribution.
First step you meet: are you a Spanish tax resident?
Spanish tax residency rules decide the rest. The rule most people know is 183 days in a calendar year, but the authorities also look at where your economic interests and family are. If you register as resident (empadronamiento) and spend most of the year in Spain you will almost certainly be a Spanish tax resident.
Why this matters: residents file the Spanish IRPF and are taxed on worldwide income. Non-residents are taxed only on Spanish-source income (Modelo 210). If you’ll be on a non-lucrative visa, check the residency timing before you touch retirement accounts.
How Spain normally treats 401(k) and traditional IRA distributions
Short version: distributions look like pension or employment income and are taxed under the progressive IRPF scale. You report them on your annual Spanish return (Renta). Spain will tax the full distribution amount unless a treaty or foreign tax credit reduces it.
Quick comparison
Account type
How Spain typically treats distributions
Notes
401(k)
Taxable as pension/employment-type income on IRPF
Social-security contributions already paid in US don't usually change IRPF classification
Traditional IRA
Taxable as pension-like income
Withdrawals taxed; timing of conversion before/after residency matters
Roth IRA
Not automatically tax-free in Spain; many advisers treat earnings as taxable
Practice varies. Keep records of contributions and dates; get advice before withdrawing.
Roth IRAs — the awkward child
Roth IRAs are where people get surprised. The US lets you make tax-free qualified withdrawals. Spain does not necessarily recognise the US "already taxed" label for earnings. Spanish practice varies: some gestors and tax offices accept that Roth qualified distributions are not taxable if you can prove the earnings were already taxed in the US; others tax the earnings as income.
Concrete action: don’t assume. If you have a Roth, collect the original account statements showing contributions, conversions and dates, and ask a Spanish gestor before your first significant withdrawal. That one call can save you a retrospective tax bill.
Reporting and paperwork checklist
Gather these documents before you file anything or make a withdrawal:
Proof of Spanish residency: empadronamiento and NIE.
US account statements showing contributions, rollovers, conversions and distributions (annual 1099-R or similar).
Plan documents: summary plan descriptions for 401(k), IRA custodian statements.
Certificates of US tax withheld (Form 1099-R) and your US tax returns for the years involved.
Translation of any non-Spanish documents (sworn translation may be required by Hacienda in some procedures).
Evidence of social/tax residency if you intend to claim treaty treatment (certificate from Agencia Tributaria or US Form 6166 for US residency issues).
Reporting forms and other obligations
At a minimum expect to:
Declare pension/retirement distributions on your annual IRPF return (filed with Agencia Tributaria).
Possibly file Modelo 720 (declaration of overseas assets) if your foreign assets exceed the reporting thresholds — currently €50,000 for the first filing per asset type, but check the up-to-date rule with Hacienda.
Consider wealth tax (Impuesto sobre el Patrimonio) in some regions if your net assets exceed regional thresholds; retirement accounts may be included in the base.
Official guidance and deadlines are on the Agencia Tributaria site: agenciatributaria.es. That’s the place to check current Modelo 720 rules and IRPF filing windows.
How long each step really takes
Expect friction. Real timings, as of 2026:
Getting empadronamiento: same day to two weeks, depending on town hall backlog.
Getting an NIE if you apply in Spain: two to eight weeks commonly; if applying via consulate before arrival, times vary by consulate — check exteriores.gob.es.
Gathering US documents (1099-Rs, statements): immediate if you already have online access; allow 2–4 weeks if you need custodian help or apostilles.
Deciding tax treatment for a Roth and getting a gestor’s opinion: two to six weeks of back-and-forth, because your gestor may need to ask Hacienda for a binding ruling in complex cases.
IRPF annual filing: the window is announced each year by Agencia Tributaria (normally April–June for the previous calendar year). Modelo 720 deadline has historically been March 31 for the prior year — check each year.
Practical tips and what I recommend
If you’re planning to move: delay big withdrawals until after you’ve registered and spoken to a gestor. If you’re already resident: declare distributions on your Spanish return and be ready to use foreign tax credits on your US return to avoid double taxation (Form 1116 on the US side).
Hire a Spanish gestor who has handled US-origin pensions. It costs — typically €300–€1,200 for a year’s work depending on complexity — but negotiating Hacienda and regional wealth-tax rules without local help is slow and risky.
Questions worth asking a lawyer, gestor or broker
For my specific accounts (custodian statements attached), will Spain tax distributions as ordinary income, and how would a Roth be treated?
Do I need to file Modelo 720 this year? If so, what assets count and what are the penalties for late filing?
Can you estimate my IRPF bill on a planned withdrawal of €X and the interaction with US withholding/credits?
Is a binding ruling (consulta vinculante) from Agencia Tributaria advisable for my Roth, and how long would that take?
Could moving to a different autonomous region reduce my wealth tax exposure?
FAQ
Will Spain tax my Social Security and US pension?
Yes. Spanish residents are taxed on worldwide income, including Social Security and US pension payments. Social Security can be taxed in Spain; the US-Spain agreement and domestic rules determine who withholds first and how credits apply. See our piece on Social Security taxation: US Social Security taxed in Spain.
Do I have to report my US accounts to Hacienda?
Possibly. If your overseas assets exceed the Modelo 720 thresholds you must file it. Even if you don’t file Modelo 720, you still declare income from those accounts on your IRPF. Check thresholds on Agencia Tributaria: agenciatributaria.es.
If I'm a US citizen living in Spain, will I pay tax twice?
Not usually. You'll file both US and Spanish returns. The US allows a foreign tax credit (Form 1116) to offset taxes you paid to Spain on the same income. The interaction is technical; get a tax pro who understands both systems.
Answer a few questions and we’ll add the tax steps that actually apply to you — where you’ll be resident, what your pension pays, and what to do before you leave.
Iria works between Spain and France and comes from the same corner of the tourism sector, the part that ends up answering questions about doctors, contracts and money rather than beaches. On HolaRetire she looks after healthcare, tax and housing, and is the reason those guides quote figures and form names instead of generalities.
