For Americans in Costa Rica, U.S. tax compliance is shaped by the absence of key international agreements. There is no comprehensive income tax treaty or social security totalization agreement, meaning double-tax relief relies entirely on U.S. domestic provisions like the Foreign Tax Credit and the Foreign Earned Income Exclusion.
Self-employed individuals face a significant compliance burden, as they are liable for U.S. self-employment taxes in addition to any contributions made to Costa Rica's social security system.
US filing basics every American abroad must know
US citizens and green-card holders are taxed on worldwide income wherever they live, and usually must file Form 1040 once gross income exceeds the IRS threshold ($15,750 for single filers, $31,500 for married filing jointly, and $23,625 for head of household for 2025), even when no tax is ultimately due. The tools that prevent double taxation are the Foreign Earned Income Exclusion (FEIE, up to $130,000 for 2025 under IRC §911) and the Foreign Tax Credit.
Two reporting rules catch most filers in Costa Rica: the FBAR (FinCEN Form 114), required when foreign financial accounts exceed $10,000 in aggregate at any point in the year, and Form 8938 (FATCA) for specified foreign assets above the applicable threshold. Both can carry penalties even when no tax is owed. If you are behind, the Streamlined Filing Compliance Procedures are the usual penalty-free path back for non-willful taxpayers.
US tax treaty with Costa Rica
The United States and Costa Rica do not have a comprehensive income tax treaty. Therefore, U.S. citizens cannot claim treaty benefits to reduce or eliminate U.S. tax on their income. Instead, they must rely on domestic U.S. tax law to avoid double taxation, primarily the Foreign Earned Income Exclusion (FEIE) and the Foreign Tax Credit (FTC).
While there is no income tax treaty, Costa Rica does have an intergovernmental agreement (IGA) with the U.S. to implement the Foreign Account Tax Compliance Act (FATCA). This agreement facilitates the reporting of financial accounts held by U.S. persons at Costa Rican institutions.
Costa Rican Pensions and U.S. Tax
Costa Rica's pension system includes the mandatory public pension from the Caja Costarricense de Seguro Social (CCSS) and a mandatory complementary plan, the Régimen Obligatorio de Pensiones Complementarias (ROPC). Because there is no tax treaty recognizing the ROPC as a qualified retirement plan, it is subject to complex U.S. tax rules. The CCSS public pension, however, is considered foreign social security and is exempt from FBAR, Form 8938, and foreign trust reporting.
Key U.S. tax implications for the ROPC include:
- Reporting Requirements: Balances in the ROPC must be reported on FinCEN Form 114 (FBAR) and potentially Form 8938 if asset thresholds are met.
- Foreign Trust Treatment: The IRS generally treats the ROPC as a foreign trust. This can trigger annual filing requirements for Form 3520 and Form 3520-A, which are complex and carry significant penalties for non-compliance. However, Rev. Proc. 2020-17 provides an exemption from Form 3520 and 3520-A reporting for eligible tax-favored foreign retirement plans.
- Contributions and Growth: Contributions are typically not deductible on a U.S. tax return. The internal growth of the plan may be currently taxable in the U.S., depending on the trust analysis.
- PFIC Issues: If the pension invests in non-U.S. funds, those underlying investments could be considered Passive Foreign Investment Companies (PFICs), adding another layer of reporting on Form 8621.
- Distributions: All distributions are reportable and potentially taxable on your U.S. return. Any Costa Rican tax paid on the distributions may be eligible for a Foreign Tax Credit.
Investments, property, and capital gains in Costa Rica
Investing in Costa Rica requires careful attention to U.S. anti-deferral regimes. Costa Rican mutual funds and other pooled investment vehicles are almost always considered Passive Foreign Investment Companies (PFICs). Owning a PFIC requires filing Form 8621 for each fund, and without a timely election (like a QEF or mark-to-market election), gains are subject to a punitive default tax regime with an interest charge.
For capital gains, the U.S. taxes worldwide income. When you sell a Costa Rican asset (like real estate), you must report the gain on your U.S. return. You can claim a Foreign Tax Credit on Form 1116 for any capital gains tax paid to the Costa Rican government on that sale, which helps mitigate double taxation.
Self-employment and companies in Costa Rica
If you own a Costa Rican business, such as a Sociedad Anónima (S.A.) or Sociedad de Responsabilidad Limitada (S.R.L.), and U.S. persons who each own 10% or more collectively own over 50% of the corporation, it is a Controlled Foreign Corporation (CFC). This triggers a filing requirement for Form 5471, an extensive information return. As a CFC shareholder, you could be taxed currently in the U.S. on the company's earnings under the GILTI (Global Intangible Low-Taxed Income) or Subpart F rules, even if you receive no distributions.
For self-employed individuals, the lack of a U.S.-Costa Rica social security totalization agreement is critical. You are required to pay the full U.S. self-employment tax (15.3%) on your net self-employment earnings, regardless of whether you also contribute to Costa Rica's social security system (CCSS). The Foreign Earned Income Exclusion cannot be used to reduce your income for self-employment tax purposes. A Certificate of Coverage is not available.
Worked examples
Self-employed consultant in Tamarindo (2025)
Maria is a U.S. citizen and freelance marketing consultant living in Costa Rica. She earns $90,000 in net self-employment income. Because there is no social security totalization agreement, she owes U.S. self-employment tax. She also contributes to the Costa Rican CCSS as required locally.
On her U.S. return, she can use the Foreign Earned Income Exclusion (FEIE) to exclude the $90,000 from U.S. income tax. However, the FEIE does not apply to self-employment tax. Her U.S. self-employment tax is calculated on 92.35% of her net earnings: $90,000 * 0.9235 = $83,115. The tax is 15.3% of this amount, so she owes $83,115 * 0.153 = $12,717 in U.S. self-employment tax, even though her U.S. income tax is zero.
Salaried employee at a local company in San José (2025)
John works for a Costa Rican tech company and earns a salary of USD 75,000. He can use the Foreign Earned Income Exclusion (FEIE) to exclude his entire salary from U.S. income tax, resulting in a zero U.S. income tax liability. However, he must still file a U.S. tax return to claim the exclusion.
John's compliance obligations do not end there. He has a Costa Rican bank account with $25,000 and a mandatory ROPC pension account valued at $15,000. The combined value of his foreign accounts ($40,000) exceeds the $10,000 threshold, so he must file a FinCEN Form 114 (FBAR). He may also have a Form 8938 filing requirement depending on his filing status and total asset values. The ROPC itself could also trigger foreign trust reporting on Form 3520/3520-A, though Rev. Proc. 2020-17 provides an exemption from this reporting for eligible tax-favored foreign retirement plans.
Retiree living in the Central Valley (2025)
Susan is a U.S. citizen retiree living in Atenas. She receives $50,000 per year from her U.S.-based 401(k). This income is fully taxable in the United States. Because Costa Rica has a territorial tax system, it generally does not tax foreign-source retirement income, so she pays no tax to Costa Rica on these distributions.
Susan also invested in a local Costa Rican investment fund. This fund is considered a Passive Foreign Investment Company (PFIC) for U.S. tax purposes. She must file Form 8621 annually to report her investment. If she sells shares of the fund, any gain will be subject to punitive U.S. tax rules unless she made a timely QEF or mark-to-market election. She must also report her Costa Rican bank accounts on an FBAR.
Common mistakes for Americans in Costa Rica
- Assuming a U.S.-Costa Rica income tax treaty exists to reduce taxes.
- Believing a social security totalization agreement is in place and attempting to use a Certificate of Coverage to avoid U.S. self-employment tax. It is not possible.
- Using the Foreign Earned Income Exclusion and incorrectly assuming it also eliminates U.S. self-employment tax liability.
- Failing to report Costa Rican pension plans (like the ROPC) on an FBAR (FinCEN Form 114) and, if applicable, Form 8938.
- Ignoring the complex foreign trust reporting rules (Form 3520/3520-A) that often apply to Costa Rican pension accounts, unless they qualify for the Rev. Proc. 2020-17 exemption for eligible tax-favored foreign retirement plans.
- Investing in Costa Rican mutual funds without understanding they are likely PFICs, which requires filing Form 8621 and can lead to very high tax rates.
- Forgetting to file Form 5471 for an ownership stake in a Costa Rican corporation (S.A. or S.R.L.), which can result in substantial penalties.
- Thinking that because they live and pay some taxes in Costa Rica, they are no longer required to file a U.S. tax return.
Costa Rica tax FAQ
Is there a U.S.-Costa Rica tax treaty?
No, there is no comprehensive income tax treaty between the United States and Costa Rica. To avoid double taxation, U.S. citizens must use provisions in the U.S. Internal Revenue Code, such as the Foreign Earned Income Exclusion (FEIE) to exclude wages or self-employment income, or the Foreign Tax Credit (FTC) to offset U.S. tax with taxes paid to Costa Rica.
Do I owe U.S. Social Security tax if I'm self-employed in Costa Rica?
Yes. There is no social security totalization agreement between the U.S. and Costa Rica. This means if you are a self-employed U.S. citizen, you are liable for the full 15.3% U.S. self-employment tax on your worldwide net earnings. This is true even if you also pay into Costa Rica's social security system (the CCSS). You cannot get a Certificate of Coverage to exempt yourself from this tax.
Do I have to report my Costa Rican pension (ROPC) to the IRS?
Yes, almost certainly. A Costa Rican pension plan like the ROPC is considered a foreign financial account. Its value must be included when determining if you meet the filing threshold for the FBAR (FinCEN Form 114) and Form 8938. Furthermore, because there is no treaty recognition, the IRS often treats these plans as foreign trusts, which can require annual reporting on Form 3520 and Form 3520-A. However, Rev. Proc. 2020-17 provides an exemption from Form 3520 and 3520-A reporting for eligible tax-favored foreign retirement plans.
What is a PFIC and should I be concerned about it in Costa Rica?
A PFIC, or Passive Foreign Investment Company, is a foreign corporation with mostly passive income or assets. Most non-U.S. mutual funds, including those available in Costa Rica, are PFICs. If you invest in one, you must file Form 8621. The default tax treatment for PFIC gains is extremely unfavorable, so it is critical to understand these rules before investing in local Costa Rican funds.
I own a Costa Rican S.A. company. What are my U.S. filing duties?
If U.S. persons who each own 10% or more collectively own over 50% of a Costa Rican corporation (like an S.A. or S.R.L.), it is a Controlled Foreign Corporation (CFC). This triggers a requirement to file Form 5471 annually. This is a very complex form that essentially reports the company's financial activity to the IRS. You may also have a current U.S. tax liability on the company's profits under the GILTI or Subpart F rules, even if no money is distributed to you.
Can I claim a Foreign Tax Credit for taxes paid to Costa Rica?
Yes. You can claim a credit for income taxes paid or accrued to Costa Rica on your U.S. tax return using Form 1116. This credit directly reduces your U.S. income tax liability, but it cannot exceed the U.S. tax owed on that same foreign-source income. It is often used as an alternative to the FEIE, especially for higher earners or those who wish to claim certain child-related tax credits.
My U.S. retirement income is not taxed in Costa Rica. Is it still taxed by the U.S?
Yes. The U.S. taxes its citizens on their worldwide income, regardless of where they live. Distributions from U.S. retirement plans like 401(k)s and IRAs remain fully taxable at the federal level in the U.S. The fact that Costa Rica does not tax this income under its territorial system has no bearing on your U.S. tax obligation.
What is FATCA and how does it affect me in Costa Rica?
FATCA (Foreign Account Tax Compliance Act) is a U.S. law requiring foreign financial institutions to report on the accounts of their U.S. clients. The U.S. and Costa Rica have an agreement to facilitate this. In practice, it means that your Costa Rican bank will identify you as a U.S. person and report your account information to the Costa Rican government, which then shares it with the IRS. This makes it essential to be compliant with your FBAR and other reporting obligations.
Sources and last reviewed
- IRS (List of U.S. Income Tax Treaties) (verified 2026-06-07)
- U.S. Social Security Administration (List of Totalization Agreements) (verified 2026-06-07)
- IRS (Publication 54, Tax Guide for U.S. Citizens Abroad) (verified 2026-06-07)
Last reviewed .
Common services needed by expats in Costa Rica
Most Americans abroad in Costa Rica need help with at least one of the following core compliance areas, which frequently interact:
- US expat tax returns, Form 1040 with FEIE, FTC, treaty positions, and any required state returns.
- FBAR reporting, FinCEN Form 114 for foreign financial accounts exceeding $10,000 aggregate at any time during the year.
- Form 8938 (FATCA), IRS disclosure of specified foreign financial assets when thresholds are met.
- Streamlined catch-up filing, For eligible non-willful taxpayers with prior unfiled years.
Discuss your Costa Rica return
Related country guides
- US expat tax in Canada
- US expat tax in Mexico
- US expat tax in Brazil
- US expat tax in Turks and Caicos
- US expat tax in Panama
- US expat tax in Colombia