Expert tax filing and return preparation for expats, digital nomads, and international residents across multiple jurisdictions.
Tax filing for expats involves preparing and submitting tax returns in every country where you have a filing obligation. Most expats must file in at least two jurisdictions: their country of residence and their country of citizenship (especially US and Eritrean citizens). Each country has its own forms, deadlines, income thresholds, and deduction rules. Missing a filing deadline or failing to report foreign income can trigger penalties ranging from a few hundred euros to tens of thousands. Tytle handles the full complexity of multi-country filing so you can stay compliant without the stress — we prepare your returns, apply treaty relief where available, and submit on time in every jurisdiction.
You must file a US federal return (Form 1040) plus report foreign accounts (FBAR/FinCEN 114) and file a Portuguese IRS Modelo 3. Tytle coordinates both filings, applies the Foreign Earned Income Exclusion (up to $130,000 for 2025), and claims treaty credits so you never pay tax twice on the same income.
Spanish autónomos file quarterly IRPF declarations (Modelo 130) plus an annual return (Modelo 100). If you invoice clients in other EU countries, you also need Intra-Community VAT filings. Tytle tracks your invoices, calculates deductions for home office and equipment, and files every declaration on time.
Spent 4 months in Portugal, 5 months in Spain, and 3 months in the US? You may have triggered residency in more than one country. Tytle analyzes your days-present, determines where you owe tax, applies tie-breaker treaty rules, and files returns in each jurisdiction with proper foreign tax credits.
Haven't filed for one or more years? Penalties grow with time, but voluntary disclosure programs can reduce them significantly. Tytle prepares backdated returns, calculates interest and penalties, and negotiates with tax authorities on your behalf to minimize what you owe.
Portugal IRS deadline
June 30
Spain IRPF deadline
June 30
US federal deadline (expats)
June 15 (auto-extension)
US FBAR deadline
April 15 (ext. to Oct 15)
Portugal late-filing penalty
Up to €3,750
Spain late-filing penalty
1%-15% + interest
US FBAR penalty (willful)
Up to $100,000 per account
US FEIE exclusion (2025)
$130,000
It depends on your citizenship and residency status. US citizens must always file a federal return regardless of where they live. Most other nationalities only file where they are tax resident. However, income sourced from your home country (like rental income or pensions) may still require a filing there. Tytle analyzes your specific situation and handles filings in every relevant jurisdiction.
Late filing triggers penalties in most countries. In Portugal, fines range from €150 to €3,750. In Spain, you face surcharges of 1% per month (up to 15%) plus interest. In the US, the failure-to-file penalty is 5% per month up to 25%. The sooner you file, the lower the penalties. Tytle can prepare backdated returns and help minimize what you owe.
Tax treaties between countries establish rules for which country gets to tax specific types of income. They provide mechanisms like foreign tax credits (deduct tax paid abroad from your local liability) and exemption methods (exclude income already taxed elsewhere). Tytle identifies which treaty applies to your situation and ensures you claim every available relief.
The FEIE allows qualifying US citizens and residents abroad to exclude up to $130,000 (2025) of foreign earned income from US taxation. To qualify, you must meet either the Bona Fide Residence Test or the Physical Presence Test (330 days abroad in a 12-month period). Tytle determines which test you meet and claims the maximum exclusion.
Typically you need: passport/ID, proof of residency (NIF, NIE, or equivalent), all income statements (employment, freelance, investment, rental), bank statements for foreign account reporting, prior year tax returns, and any relevant treaty documentation. Tytle provides a personalized checklist based on your situation and collects everything through a secure portal.
Yes. Most countries allow you to file late returns, though penalties apply. The US has specific programs like the Streamlined Filing Compliance Procedures for expats who weren't willfully non-compliant, which can waive most penalties. Portugal and Spain also accept late filings with reduced penalties if you come forward voluntarily. Tytle guides you through the best approach for your situation.
Our international tax experts can help you navigate cross-border taxation with confidence.
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