The short version

Uruguay can look clean from the outside: stable jurisdiction, territorial-style tax rules, a new-resident election, practical residency paths, and a dollar-friendly planning story for some Americans.

The landmines are in the gaps between systems.

Uruguay is not on the IRS income-tax treaty list, but the United States and Uruguay do have a social-security totalization agreement. Uruguay’s domestic rules can reduce or defer some Uruguay tax exposure, but they do not erase the U.S. return. Uruguay estate law can reserve portions of an estate for family members, even when a U.S. person thinks a revocable trust or U.S. will solved everything.

The planning question is not “Is Uruguay good?” The question is whether your Uruguay file, U.S. return, state-exit record, foreign-account reporting, investment structure, and estate plan all say the same thing.

The treaty gap is easy to misread

The first landmine is using the wrong treaty sentence.

The United States does not have an income-tax treaty with Uruguay on the IRS A-to-Z treaty list. That means a U.S. person moving to Uruguay usually cannot start with a treaty residency tie-breaker, a treaty pension article, or reduced treaty withholding the way a Chile file might.

But that does not mean there is no U.S.-Uruguay agreement at all.

The Federal Register notice says the U.S.-Uruguay social-security agreement became effective on November 1, 2018. The notice describes the agreement as coordinating social-security programs, eliminating dual social-security coverage in specified work situations, and allowing totalized credits for some benefit purposes.

Those are different tools:

Instrument Uruguay status for U.S. planning What it can help with What it does not do
U.S. income-tax treaty Uruguay is not listed on the IRS A-to-Z treaty page None, because there is no listed income-tax treaty It does not provide income-tax treaty residency relief, treaty withholding rates, or a treaty pension article.
Social-security totalization agreement Effective November 1, 2018 Social-security coverage coordination and some benefit-credit coordination It does not eliminate income-tax filing or replace the income-tax treaty analysis.
Tax information exchange agreement Treasury lists a U.S.-Uruguay TIEA dated October 24, 2023 Tax information exchange between competent authorities It is not an income-tax treaty and not a substitute for U.S. reporting.

Source: IRS treaty list, Federal Register notice, and U.S. Treasury TIEA page.

The practical rule is simple: no U.S.-Uruguay income-tax treaty, but do not ignore the social-security agreement.

Territorial-style does not mean invisible

The second landmine is overselling Uruguay as “territorial” without reading the carve-ins.

The current Uruguay IRPF text is the starting point for individual income tax. The prior Uruguay articles in this country track explain the residence tests and Article 24-Bis election in more detail. This piece is the caution label.

Uruguay can be favorable for the right fact pattern. But favorable is not the same as blank. The Uruguay file still has to separate:

  • Uruguay-source labor, business, rent, and gain;
  • foreign capital returns that can be pulled into Uruguay’s individual income-tax system under the domestic text;
  • income that may be covered by the new-resident option;
  • income outside the Uruguay holiday but still inside the U.S. return;
  • entity, fund, trust, and retirement-account facts that may not fit the marketing version.

That is why the phrase “tax holiday” can be dangerous. Article 24-Bis is not a universal “all income is gone” rule. It is a defined election for a defined taxpayer, defined years, and defined categories.

For a U.S. person, the Uruguay tax file should therefore answer four questions before the return is prepared:

  1. Are you a Uruguay tax resident?
  2. Which Uruguay income categories exist?
  3. Which categories are reduced, deferred, exempted, or elected under Uruguay domestic law?
  4. Which categories remain fully reportable in the United States?

The fourth question is usually the one people skip.

The U.S. return follows you

The IRS says U.S. citizens and resident aliens abroad remain subject to U.S. filing rules on worldwide income unless a specific rule changes the result.

That baseline does not disappear because Uruguay taxes a category lightly, does not tax a category, or grants a domestic holiday. The United States may still ask about the income, account, fund, trust, entity, gift, inheritance, or state-residence facts.

The U.S. file should be built as a separate checklist:

U.S. screen Why Uruguay can trigger the question Public source
Form 1040 worldwide income U.S. citizens and resident aliens abroad still file on worldwide income unless a specific rule changes the result. IRS citizens-abroad guidance
Foreign tax credit Uruguay tax may be creditable only under U.S. foreign tax credit rules and limits. 26 U.S.C. section 904
FBAR Uruguay bank, brokerage, or financial accounts can create a foreign-account aggregate-balance screen. FinCEN FBAR page
Form 8938 Specified foreign financial assets can require Form 8938, and Form 8938 does not replace FBAR. IRS Form 8938 and FBAR comparison
Form 8621 / PFIC Uruguay or other non-U.S. pooled funds can be foreign corporations that need PFIC screening. IRS Form 8621 and 26 U.S.C. section 1297
Form 3520 Certain foreign trust transactions and certain large foreign gifts or bequests can require Form 3520. IRS Form 3520 page
State exit A Uruguay move may still leave domicile, home, family, business, or source-income evidence in a U.S. state. State-law specific analysis

The word “screen” matters. A Uruguay bank account does not automatically mean every foreign filing applies. A Uruguay fund does not automatically mean every PFIC rule applies. A foreign gift or inheritance does not automatically mean the same form applies in every fact pattern.

But each one is a screen. If the preparer does not ask, the filing position may be built by omission.

PFIC is the investment trap

The most technical landmine is often not Uruguay tax. It is the U.S. passive foreign investment company rule.

The IRS Form 8621 page describes the form as the information return by a shareholder of a passive foreign investment company or qualified electing fund. Section 1297 defines a PFIC by passive-income and passive-asset tests for a foreign corporation.

That matters because U.S. taxpayers living abroad often buy local or offshore pooled investments that feel ordinary in the local market. A non-U.S. mutual fund, investment company, private pool, holding company, or insurance-wrapper investment may need PFIC screening before the U.S. return can be prepared correctly.

The practical danger is timing. PFIC elections and reporting can be much easier to manage at the point of purchase than after several years of unreported ownership.

Before buying a Uruguay or offshore pooled product, the file should ask:

  1. Is the vehicle a foreign corporation for U.S. tax purposes?
  2. Does the passive-income or passive-asset test matter?
  3. Is annual information available to support any election?
  4. How will distributions, redemptions, or gains be reported in the United States?
  5. Does the position also create Form 8938, FBAR, Form 5471, Form 8865, or trust reporting?

If the answer is “we will figure it out when the brokerage statement arrives,” the trap is already set.

Estate planning is not just a U.S. will

The next landmine is Uruguay succession law.

Uruguay’s Civil Code includes forced-heirship concepts. Article 885 lists forced heirs. Article 887 sets reserved-share rules: one child receives a reserve of half, two children two-thirds, and three or more children three-quarters, while the remainder is freely disposable. Where there are no children, Article 887 reserves half for legitimate ascendants.

The spouse analysis is its own issue. Article 874 defines the spousal portion as a part of the predeceased spouse’s estate assigned to the surviving spouse who lacks what is needed for support. Article 881 says that, when there are descendants, the surviving spouse is counted among the children for the Article 887 computation and receives the legitimate share of a child, with additional housing and use provisions that need local counsel review.

For an American, the planning mistake is assuming that a U.S. revocable trust, U.S. will, or beneficiary form automatically controls every Uruguay asset in the same way it controls a U.S. brokerage account.

That may be wrong.

At minimum, the estate file should identify:

  • Uruguay real estate;
  • Uruguay bank and investment accounts;
  • Uruguay entity interests;
  • marital-property facts;
  • children, ascendants, spouse, and blended-family facts;
  • U.S. trust, will, beneficiary, and probate documents;
  • whether local succession counsel has reviewed the Uruguay-situs assets.

This is not a reason to avoid Uruguay. It is a reason to stop calling estate planning “done” until the U.S. and Uruguay documents have been reconciled.

Information exchange changes the comfort story

The final landmine is the “no one will know” assumption.

Treasury’s TIEA page lists a U.S.-Uruguay tax information exchange agreement dated October 24, 2023, and links the signed agreement. A tax information exchange agreement is not the same thing as an income-tax treaty. It does not give treaty relief. It also should not be described as a blanket automatic-reporting system without checking the agreement and implementation facts.

But it does change the planning posture.

If you are a U.S. person, the conservative assumption should be that Uruguay accounts, entities, investment structures, and income can become visible through some combination of your own U.S. reporting, financial-institution reporting, requests for information, or later audit work.

Good planning does not depend on invisibility.

Good planning depends on having the same facts in the Uruguay file, the U.S. return, the state-exit file, and the estate plan.

What this means for you

If you are considering Uruguay, build the landmine file before the move, not after the first Uruguay return.

The file should include:

  1. Treaty posture: no U.S.-Uruguay income-tax treaty on the IRS list, but a totalization agreement exists.
  2. Tax-residence proof: day count, family location, economic center, and Uruguay residence evidence.
  3. Uruguay income map: Uruguay-source income, foreign capital returns, Article 24-Bis categories, entity income, and trust facts.
  4. U.S. reporting map: Form 1040, foreign tax credit, FBAR, Form 8938, Form 8621, Form 3520, entity forms, and state-exit facts.
  5. Investment screen: PFIC analysis before buying non-U.S. pooled funds or wrappers.
  6. Estate screen: Uruguay-situs assets, forced-heirship exposure, spouse provisions, and local counsel review.
  7. Information-exchange file: assume records need to stand up if later requested.

Uruguay can still be a strong planning country. The problem is not Uruguay. The problem is moving to Uruguay with a U.S.-only checklist and pretending the gaps are not there.

Related reading

Related reading in this country track includes Moving to Uruguay: Territorial Tax and the New-Resident Holiday, Uruguay Tax Residency and the Tax-Holiday Election, Household Goods and Residency Paths for Uruguay, Chile vs Its Neighbors: Why a Treaty Matters, and Why FEIE May Not Be Your Biggest Tax Risk in South America.

How Sheepdog Tax can help

I am Noah Green, a CPA and Certified Fraud Examiner, and Sheepdog Tax is a veteran-owned practice. I help U.S. taxpayers with foreign work, digital assets, and cross-border filing facts build the tax file before the return locks in the position. For a Uruguay plan, that means coordinating the treaty posture, totalization question, Uruguay tax-residence file, U.S. worldwide-income return, FBAR, Form 8938, PFIC screening, Form 3520 review, state-exit evidence, and estate-plan handoff before the move becomes hard to unwind. To request a Uruguay expat tax diagnostic, reach me at noah@sheepdogtax.com.


Sources (official source first)

  1. IMPO, Uruguay Titulo 7, Impuesto a la Renta de las Personas Fisicas, updated March 2026. https://www.impo.com.uy/bases/todgi-2023/7-2024?verOriginal=1
  2. IRS, United States income tax treaties A to Z. https://www.irs.gov/businesses/international-businesses/united-states-income-tax-treaties-a-to-z
  3. Federal Register, Agreement on Social Security Between the United States and Uruguay, 83 FR 53936. https://www.federalregister.gov/documents/2018/10/25/2018-23327/agreement-on-social-security-between-the-united-states-and-uruguay-entry-into-force
  4. U.S. Treasury, Tax Information Exchange Agreements. https://home.treasury.gov/policy-issues/tax-policy/tax-information-exchange-agreements-tieas
  5. U.S. Treasury, U.S.-Uruguay Tax Information Exchange Agreement PDF. https://home.treasury.gov/system/files/131/TIEA-Uruguay-10-24-2023.pdf
  6. IRS, U.S. Citizens and Resident Aliens Abroad. https://www.irs.gov/individuals/international-taxpayers/us-citizens-and-resident-aliens-abroad
  7. IRS, Comparison of Form 8938 and FBAR requirements. https://www.irs.gov/businesses/comparison-of-form-8938-and-fbar-requirements
  8. FinCEN, Report Foreign Bank and Financial Accounts. https://www.fincen.gov/report-foreign-bank-and-financial-accounts
  9. IRS, About Form 8621. https://www.irs.gov/forms-pubs/about-form-8621
  10. 26 U.S.C. section 1297, Passive foreign investment company. https://www.law.cornell.edu/uscode/text/26/1297
  11. IRS, About Form 3520. https://www.irs.gov/forms-pubs/about-form-3520
  12. 26 U.S.C. section 904, limitation on foreign tax credit. https://uscode.house.gov/view.xhtml?req=%28title%3A26+section%3A904+edition%3Aprelim%29
  13. IMPO, Uruguay Civil Code Article 885. https://www.impo.com.uy/bases/codigo-civil/16603-1994/885
  14. IMPO, Uruguay Civil Code Article 887. https://www.impo.com.uy/bases/codigo-civil/16603-1994/887
  15. IMPO, Uruguay Civil Code Article 874. https://www.impo.com.uy/bases/codigo-civil/16603-1994/874
  16. IMPO, Uruguay Civil Code Article 881. https://www.impo.com.uy/bases/codigo-civil/16603-1994/881

Prepared by Noah Green, CPA, CFE.