Double taxation occurs when both the U.S. and the foreign country tax the same income. Here’s how to minimize it:
The FTC is your primary tool for mitigating double taxation. For example, if you pay 25% tax on rental income in the foreign country and your U.S. marginal tax rate is 37%, you can claim a credit for the 25% foreign tax, reducing your U.S. liability to 12% (37% – 25%).
However, the actual calculation of the FTC is more nuanced. The credit is limited to the amount of U.S. tax attributable to the foreign income, as outlined in IRC §904. This means the credit cannot exceed the proportion of your total U.S. tax liability that corresponds to the foreign-sourced income. Additionally, the FTC applies only to income taxes or taxes in lieu of income taxes, and the income must be of the same category (e.g., passive income, general income) for the credit to apply.
Form 1116 is typically used to calculate and claim the FTC, unless you qualify for an exemption from filing the form (e.g., if your total foreign taxes are below a certain threshold). It’s crucial to maintain detailed records of foreign taxes paid and ensure proper categorization of income to maximize the credit while complying with U.S. tax regulations.
The U.S. has tax treaties with many countries to prevent double taxation. Treaties often provide reduced withholding rates on rental income or capital gains and clarify which country has primary taxing rights. For example, under the U.S.-France tax treaty, France has the primary right to tax rental income from French property, and you can claim an FTC in the U.S.
Leverage allowable deductions in both jurisdictions. For instance, if the foreign country allows accelerated depreciation or additional expense deductions, maximize those to reduce taxable income abroad.
Using entities to hold foreign real estate can sometimes minimize double taxation (more on this below), but it requires careful planning to avoid unintended consequences like triggering the Global Intangible Low-taxed Income (GILTI) tax under IRC §951A.
Suppose you purchase a rental property in Portugal for $1 million. Portugal taxes rental income at a flat rate of 28%. You earn $50,000 in annual rental income and incur $20,000 in deductible expenses, leaving $30,000 in net income. Here’s how taxation might work:
You pay $8,400 in Portuguese tax (28% of $30,000).
You report $30,000 on Schedule E. Assuming a 37% marginal rate, your U.S. tax liability is $11,100. However, you claim an FTC for the $8,400 paid to Portugal, reducing your U.S. liability to $2,700.
If you sell the property after five years for $1.5 million, Portugal imposes a 28% capital gains tax on the $500,000 gain. The U.S. taxes the same gain at 20% (plus 3.8% NIIT), but you can claim an FTC for the Portuguese tax paid.