U.S. taxes for Americans in Croatia: what to file, and how to catch up.
Croatia draws digital nomads, retirees on the coast and Croatian-American families, and all of them still file a U.S. return every year. A U.S.-Croatia tax treaty has been signed but isn’t in force, so U.S. law does the work: the foreign tax credit and the exclusion. The details to get right are the pension funds, local funds and holiday rentals. Most people who fell behind can catch up under the Streamlined procedures, with no penalty if they qualify.
Sound familiar?
- You came to Croatia on a digital nomad permit.
- You inherited or bought a family home on the coast.
- Part of your salary goes into a mandatory pension fund (the second pillar).
- Your Croatian bank asked for your U.S. tax number.
How does the IRS treat Croatian income, pensions and property?
Accounts go on your FBAR once they add up to more than $10,000. What differs is how the IRS taxes them.
| Item | U.S. treatment | |
|---|---|---|
| Digital nomad income | Croatia exempts remote work for foreign employers on a digital nomad permit. The U.S. still taxes it, though the foreign earned income exclusion often covers it. | Mostly friendly |
| Mandatory pension funds (second pillar) | Could be treated as social security or as a foreign retirement account the U.S. can tax, and the rules don’t settle which. | Check first |
| Voluntary pension funds (third pillar) | Tax-favored in Croatia only. Growth may be taxable for the U.S., and some plans hold PFICs. | Check first |
| Croatian investment funds | Usually PFICs (Form 8621), with complex reporting and tax rules. | Watch out |
| Holiday rentals | Rental income goes on your U.S. return, with expenses and depreciation. Croatian income tax on it can count toward your credit; a flat fee per bed may not. | Taxable |
| Inherited property | No U.S. tax just for inheriting it, but a large inheritance may need Form 3520, and U.S. tax may apply when you sell. | Plan ahead |
Which Croatian investments are PFICs?
Croatian investment funds (investicijski fondovi) sold by banks, the funds inside voluntary pension plans, and European ETFs bought through local brokers. For U.S. tax they’re passive foreign investment companies, or PFICs.
- Each fund needs its own Form 8621 in most years, and gains can be taxed at the top U.S. rate plus an interest charge, unless an election was made in time.
- Not PFICs: shares of individual companies on the Zagreb exchange, Croatian government bonds, bank deposits, and property you own directly.
- Digital nomads usually keep their investments in U.S. accounts, which avoids the PFIC rules entirely.
Is there a U.S.–Croatia tax treaty?
One was signed in 2022, but it isn’t in force yet, so it doesn’t apply to your returns. Until it is, U.S. law does the work:
- The foreign tax credit doesn’t need a treaty. Croatian income tax on your salary or rent can be credited against U.S. tax on the same income.
- The foreign earned income exclusion works the same with or without a treaty.
- No social security agreement means a self-employed American owes U.S. self-employment tax, and working for a U.S. company usually means U.S. Social Security withholding.
Croatia does have a FATCA agreement with the U.S., so Croatian banks report accounts held by Americans to the IRS.
When are Croatian and U.S. taxes due?
Both tax years run January to December, so each Croatian year lines up with one U.S. return.
| Croatia | United States | |
|---|---|---|
| Tax year | January to December | January to December |
| Annual return | End of February, if you have to file; the tax office settles many employees’ years itself | April 15, moved to June 15 automatically when you live abroad, or October 15 with an extension |
| Paying the tax | Withheld from your salary, or set amounts for rentals and the self-employed | April 15, even if you file later |
| Foreign accounts | No separate report for most residents | The FBAR, due October 15, filed online |
Foreign tax credit or exclusion: which wins in Croatia?
It depends on who you are:
- Digital nomads pay no Croatian tax on their remote work, so the foreign earned income exclusion, up to $130,000 for 2025, does the work, if they meet the 330-day test.
- Employees of Croatian companies pay Croatian tax at rates set by their city, and either the exclusion or the foreign tax credit can work; we compare both.
- Retirees on U.S. Social Security, pensions and IRAs use neither much: that’s U.S. income, outside the exclusion.
- Landlords credit Croatian income tax on rent against the U.S. tax on it.
We run your returns both ways before choosing. How we compare the exclusion and the credit.
A worked example: a remote worker in Split
Ana, a Croatian-American software developer, moved to Split in 2022 on a digital nomad permit, working remotely for a U.S. company. She also rents out her late grandparents’ house to tourists each summer.
| Item | How it’s handled |
|---|---|
| Salary | Exempt in Croatia, but taxed by the U.S. The exclusion covers it if she meets the 330-day test; her U.S. employer still withholds Social Security. |
| Holiday rental | On her U.S. return with expenses and depreciation, with a credit for the Croatian income tax on it. |
| The house | No U.S. tax for inheriting it, though a large inheritance may have needed Form 3520 that year. |
| Catching up | Three years of returns and six FBARs under the Streamlined procedures, with no penalty if she qualifies. |
Catching up from Croatia
Most Americans in Croatia who fell behind without meaning to can catch up under the Streamlined Foreign Offshore Procedures: three years of returns, six years of FBARs and, if you qualify, no penalties. If only FBARs are missing, or you’ve moved back to the U.S., another route may fit better. See every IRS catch-up option for expats, compared.
Common questions
Do I pay U.S. Social Security tax in Croatia?
Usually not if you work for a local employer. There’s no U.S.-Croatia social security agreement, though, so self-employment tax can still apply if you work for yourself, and FICA if you work for a U.S. company.
Without a tax treaty, will I be taxed twice?
Usually not. The U.S. foreign tax credit works without a treaty, so Croatian income tax you pay generally reduces your U.S. tax on the same income.
I’m on a digital nomad permit. Do I still file in the U.S.?
Yes. Croatia’s exemption doesn’t change your U.S. return. With 330 full days abroad, the foreign earned income exclusion usually covers your pay, but self-employment tax can still apply if you work for yourself.
I rent my place to tourists. What do I report?
The rental income, with expenses and depreciation, on your U.S. return, and any Croatian income tax on it as a credit. A flat per-bed fee may not count toward the credit.
Is my second-pillar pension fund taxed by the U.S.?
It’s unsettled. It could be treated as social security, or as a foreign retirement account the U.S. can tax as it grows. We explain the options before you file.
Will the new treaty change things?
Once it’s in force, it may change how some pensions and investment income are taxed. Until then, your returns follow U.S. law alone.
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