Tax Treaty Relief in Puerto Rico

Does Puerto Rico have its own tax treaties?

Puerto Rico does not have its own income-tax treaty network. As an unincorporated US territory, Puerto Rico lacks independent sovereignty to negotiate or sign bilateral tax agreements with foreign countries. The Puerto Rico Supreme Court has confirmed that if a US treaty does not explicitly name Puerto Rico, that treaty does not apply to Puerto Rico. The practical result: there are no double-taxation agreements (DTAs) between Puerto Rico and any foreign country, and Puerto Rico's cross-border tax rules derive entirely from domestic Puerto Rico law (the Codigo de Rentas Internas) and applicable federal statutes, not from treaty commitments. [1]

Do US income tax treaties extend to Puerto Rico?

In most cases, no. US income tax treaties typically define the "United States" to mean the 50 states and the District of Columbia. Puerto Rico, along with Guam, the US Virgin Islands, American Samoa, and the Northern Mariana Islands, is generally excluded from that treaty definition. The consequence for a bona-fide resident of Puerto Rico is significant: if the resident earns income from a foreign country whose treaty with the United States would otherwise reduce withholding tax rates on dividends, interest, or royalties, that treaty reduction ordinarily does not apply because the resident is not in the "United States" for treaty purposes. [2]

There is no Puerto Rico equivalent of the US Model Income Tax Treaty. Each US treaty must be reviewed individually; a small number of older treaties contain broader territorial language, but those are exceptions rather than the rule. Practitioners regularly audit each treaty for explicit Puerto Rico coverage before relying on reduced withholding rates.

What happens to Puerto Rico-source income under IRC Section 933?

IRC Section 933 provides the primary federal tax benefit for individuals who are bona-fide residents of Puerto Rico for the entire taxable year. Under Section 933(1), income derived from sources within Puerto Rico is excluded from the resident's US federal gross income. This exclusion does not arise from any treaty; it is a domestic statutory benefit.

The trade-off is strict: deductions and credits that are properly allocable to the excluded Puerto Rico-source income cannot be claimed on the US federal return. Only the personal exemption under IRC Section 151 is preserved. The result is that a bona-fide PR resident with only PR-source income generally files no US federal income tax return -- but also cannot claim foreign tax credits on excluded amounts. [3]

US government wages (federal civilian and military) remain fully subject to US federal tax even for bona-fide PR residents, regardless of Section 933. [4]

How are foreign-source income and foreign withholding taxes handled?

Foreign-source income earned by a bona-fide Puerto Rico resident -- income from countries other than the United States and Puerto Rico -- is fully subject to US federal income tax. Section 933 covers only Puerto Rico-source income; it provides no shelter for third-country income.

Because US income tax treaties generally do not extend to Puerto Rico, a PR-resident investor receiving a foreign dividend or royalty typically cannot invoke a treaty to reduce the foreign country's withholding tax. That foreign WHT is paid in full at the statutory rate, and the resident is then taxed again on the gross amount at US federal rates.

Relief comes through the foreign tax credit (FTC) on the US federal return. A bona-fide PR resident who must report foreign-source income to the IRS may claim a credit on Form 1116 for qualifying foreign income taxes paid or accrued on that income. The calculation requires carefully separating the taxes allocable to the PR-excluded income (not creditable) from those attributable to the foreign-source income that is reported to the IRS (creditable within the applicable limitation). Publication 514 governs the mechanics; Publication 570 provides territory-specific guidance. [5]

Separately, the Departamento de Hacienda de Puerto Rico administers Puerto Rico's own income tax on worldwide income of PR residents. Hacienda allows a credit against Puerto Rico income tax for income taxes paid to foreign countries (including US states and the federal government), subject to applicable limitations. Because Puerto Rico has no treaty network of its own, reductions in foreign withholding tax are not a Puerto Rico income tax mechanism -- Hacienda relies solely on the domestic foreign-tax-credit framework to mitigate double taxation at the PR level. [1]

Do US totalization agreements (Social Security) apply to Puerto Rico?

Yes. Totalization agreements are Social Security coordination agreements, not income-tax treaties, and they operate under a different legal framework. US totalization agreements -- which the Social Security Administration administers with approximately 30 countries -- explicitly include Puerto Rico within the geographic scope of "the United States" for Social Security purposes. The agreements covering countries such as Italy, Germany, France, the United Kingdom, Canada, Australia, Japan, South Korea, and others therefore apply to workers in Puerto Rico.

This means a worker in Puerto Rico covered by a US totalization agreement with their home country can avoid paying Social Security taxes to both jurisdictions simultaneously, and periods of coverage in the partner country count toward qualifying for US Social Security benefits. This is the one area of international social-insurance treaty coverage where Puerto Rico's territorial status does not exclude it. [6]

How does Act 60 interact with the absence of treaty relief?

Puerto Rico's Act 60-2019 (the Puerto Rico Incentives Code), as extended and amended through Act 38-2026, offers preferential Puerto Rico income tax rates for qualifying individual investors and export-service businesses. For Individual Investors under Chapter 2, qualifying capital gains, dividends, and interest sourced from Puerto Rico are taxed at 0% Puerto Rico tax (for decrees issued to applicants who filed by December 31, 2026) or 4% (for applications filed on or after January 1, 2027). The program now runs through 2055.

However, Act 60 does not change the treaty analysis. Act 60 decrees reduce the Puerto Rico-level tax on qualifying income, but they cannot extend US income tax treaties to cover Puerto Rico or create treaty relief that the federal government has not provided. A Chapter 2 decree holder receiving foreign dividends still faces foreign withholding at the statutory rate of the source country, because the relevant US treaty does not apply to Puerto Rico. The foreign-tax-credit mechanism on both the US return and the PR return remains the sole relief avenue.

The absence of treaty-reduced withholding is a material cost consideration for Act 60 residents with significant foreign investment portfolios. Consulting a qualified tax professional who specializes in Puerto Rico incentive law is important before structuring foreign-income streams for Act 60 purposes.

Individuals navigating Puerto Rico's tax position alongside foreign-source income should review the Puerto Rico country overview for jurisdiction context. Given the complexity of coordinating IRC Section 933, the FTC limitation, and Act 60 decree obligations, consulting a qualified tax professional with Puerto Rico residency and incentive-law experience is strongly recommended before any cross-border restructuring.