Tax Advisory Spain: What Experts Check First for US Retirees

Spain uses the 183-day rule as its primary residency test. Spend more than 183 days in Spain during a calendar year, and you are a tax resident. The days do not need to be consecutive. Sporadic absences count as days in Spain unless you can prove tax residence elsewhere. The 183-day rule is not the only trigger. Spain can also classify you as resident if your main economic interests are in Spain, for example if most of your income comes from Spanish sources, you run a business in Spain, or most of your investments are held in Spanish institutions. The same applies if your spouse and dependent minor children live in Spain, unless you can prove your economic and personal life is centred elsewhere. Holders of a non-lucrative visa normally become tax residents in their first full year, because the visa itself requires living in Spain most of the year. Once resident, you must file a Spanish income tax return (IRPF) and declare worldwide income. Non-residents are taxed only on Spanish-source income. Need to model your pension under the resident rules? Our [pension_tax](/en/tools/spain-tax-calculator-for-retirees) calculator is set to Spain and runs in EUR with a USD conversion.

If you are a Spanish tax resident, you must file Modelo 720 when your foreign assets exceed €50,000 in any one of three categories: bank accounts abroad (aggregate balance over €50,000), investments or securities (over €50,000), and real estate abroad (over €50,000). The deadline is 31 March each year, for assets held as of 31 December of the previous year. It is an informative declaration, not a tax payment. Once filed, you do not need to refile unless the value of a previously declared category increases by more than €20,000, you acquire new assets, or you sell previously declared assets. After the 11 March 2022 reform, penalties for incomplete or inaccurate Form 720 filings are the general information-return penalties: €20 per item or set of information, with a minimum of €300 and a maximum of €20,000, halved if filed late without prior request. The standard four-year statute of limitations applies. A tax advisor will check whether you need to file Modelo 720 and whether any change since last year crosses the €20,000 refiling threshold.

US citizens in Spain remain subject to US reporting. The IRS substantial presence test determines US residency, but as an American abroad you still file US taxes. FBAR is required if the total value of your non-US financial accounts exceeds $10,000 at any point during the year. Form 8938 thresholds under FATCA must be checked against the current IRS Form 8938 instructions, because the figures vary by filing status and by whether you live in the US or abroad. These are reporting requirements, not tax liabilities in themselves, but failure to comply can lead to penalties. The US and Spanish filings need to be coordinated, and a cross-border tax advisor will build a single calendar that covers both. For the split between a routine gestor and someone who actually handles US–Spain filings, see [Gestor vs tax advisor in Spain: who retirees actually need](/en/finance-tax/gestor-tax-advisor-spain).

Spanish residents may also be liable for wealth tax. Under the state rules, wealth tax applies to net wealth above a general exemption of €700,000 per person, plus an allowance of up to €300,000 for the main home. State rates run from 0.2% to 3.5 percent. Each autonomous community can vary the exemption, rates and rebates; Madrid and Andalusia apply 100% rebates. Separately, the state solidarity tax on large fortunes applies nationwide to net wealth above €3,000,000. Even if a regional rebate reduces the bill to zero, you must file when your assets exceed the thresholds, and a return is also required when gross assets exceed €2,000,000. These figures come from the BOE wealth tax act and the Agencia Tributaria Practical Heritage Manual 2025. Our [wealth_tax](/en/tools/spain-wealth-tax-calculator) calculator is scoped to Spain, states amounts in EUR, and applies the state scale and main-home allowance.

Income tax rates for residents range from 19% to 47%, depending on earnings. On top of income tax, residents may also be liable for capital gains tax, rental income tax, wealth tax, and inheritance and gift tax. Each of those has its own filing and its own regional quirks. If you own property in Spain and rent it out, or if you plan to leave Spanish property to heirs, the inheritance and gift tax position deserves a dedicated review rather than a line in a general return. If you sell a home abroad after becoming resident, the gain enters your Spanish worldwide income calculation, and the foreign tax credit mechanism matters. The point is not to scare you. It is that a Spanish tax advisor's first job is to list every tax that could touch you in the next three years, then price the filing work for each.

The Beckham Law is a special Spanish tax regime available to some foreigners. It exists as an option for certain foreign arrivals, but eligibility, rates and duration are not set in the evidence supplied here. If you think it might apply to you, ask a cross-border specialist to confirm whether you meet the criteria and whether the regime is better or worse than the standard resident regime for your income mix. Do not assume you qualify, and do not treat forum posts as authority.

Ask four questions. First, do they file both the Spanish IRPF and the US return, or do they coordinate with a US CPA? Second, which specific Spanish filings will they handle for you: IRPF, Modelo 720, wealth tax, non-resident tax if relevant? Third, how do they charge: hourly, fixed engagement, or annual retainer, and are disbursements extra? Fourth, what happens in the first year when your residency start date is mid-calendar-year and your US and Spanish tax years do not line up. Pricing for tax advisory in Spain is typically engagement-specific. There is no single official price list for cross-border work, and quotes vary with the number of entities, accounts and jurisdictions involved. Get the scope in writing, with the deliverables named, before you pay a deposit.