Question 1

How do US-Canada cross-border taxes work?

Accepted Answer

US-Canada cross-border taxation is one of the most common and complex international tax scenarios. Both countries tax their residents on worldwide income, and both have extensive tax systems that can create significant overlap. The US-Canada Tax Treaty, along with the Totalization Agreement, provides the framework for resolving these overlaps.

If you are a US citizen or green card holder living in Canada, you must file tax returns in both countries. Canada taxes you as a resident on your worldw...

Question 2

What is a tax treaty and how does it help?

Accepted Answer

A tax treaty (also called a double tax agreement or DTA) is a bilateral agreement between two countries that defines how specific types of income will be taxed when earned by residents of one country in the other. The United States has tax treaties with approximately 65 countries, and these treaties provide important benefits for US expats.

The primary purpose of tax treaties is to prevent double taxation — ensuring the same income is not fully taxed by both countries. They accomplish this thro...

Question 3

Do I get double-taxed on the same income?

Accepted Answer

While the US citizenship-based tax system means you are potentially subject to tax in both the US and your country of residence, the US provides several mechanisms to prevent actual double taxation on the same income. In practice, most expats do not pay full tax to both countries.

The Foreign Tax Credit (FTC) is the most direct solution. It provides a dollar-for-dollar credit against your US tax for income taxes paid to a foreign government. If you earn $100,000 and pay $25,000 in foreign incom...

Question 4

How are RSUs and stock options taxed for cross-border workers?

Accepted Answer

Restricted Stock Units (RSUs) and stock options are among the most complex compensation elements for cross-border workers because they involve income that may have been earned over multiple years and in multiple countries. Both the US and your country of residence may claim taxing rights, and proper allocation is critical.

For RSUs, the general principle is that the compensation income recognized upon vesting should be allocated between the US and foreign country based on where you worked durin...

Question 5

What is a Totalization Agreement?

Accepted Answer

A Totalization Agreement is a bilateral agreement between the United States and another country that coordinates social security coverage and taxation for workers who divide their careers between the two countries. The US currently has Totalization Agreements with approximately 30 countries, including Canada, the United Kingdom, Germany, Australia, Japan, South Korea, and most Western European nations.

Totalization Agreements serve two primary purposes. First, they eliminate dual social securit...

Question 6

How do I report foreign rental income?

Accepted Answer

Foreign rental income must be reported on your US tax return on Schedule E (Supplemental Income and Loss), just as you would report domestic rental income. The US taxes worldwide income, so rental income from properties in any country is subject to US reporting and potentially US taxation.

You report the gross rental income in US dollars, converted from the foreign currency using the average exchange rate for the period the income was received (or the spot rate on the date received, if you pref...

Question 7

What are the tax implications of selling foreign property?

Accepted Answer

Selling foreign real estate triggers US tax reporting obligations and potentially significant tax liability. The gain or loss must be reported on your US tax return, and several complex rules apply that differ from domestic property sales.

The capital gain is calculated in US dollars, which introduces exchange rate risk. You determine your cost basis by converting the original purchase price to USD at the exchange rate on the purchase date, and you convert the sale proceeds at the exchange rate...

Question 8

How are foreign pensions taxed in the US?

Accepted Answer

Foreign pension taxation in the US is one of the most complex areas of cross-border tax. The treatment depends on the type of pension, the country where it was earned, whether a tax treaty applies, and how the pension is structured under US tax law.

In general, distributions from foreign pension plans are taxable as ordinary income on your US tax return, similar to domestic pension distributions. However, the timing and extent of taxation can vary significantly. If your contributions to the pen...

Question 9

What is a PFIC and why does it matter?

Accepted Answer

A Passive Foreign Investment Company (PFIC) is a foreign corporation that meets either of two tests: 75% or more of its gross income is passive income (interest, dividends, rents, royalties, capital gains), or 50% or more of its assets produce or are held to produce passive income. The PFIC rules are designed to prevent US persons from deferring tax by investing through foreign entities.

PFICs matter enormously for US expats because most foreign mutual funds, ETFs, and investment funds are clas...

Question 10

How do I report foreign business income?

Accepted Answer

Reporting foreign business income depends on the structure of your business — whether you operate as a sole proprietor, through a foreign corporation, or through a foreign partnership. Each structure has different reporting requirements and tax implications.

As a sole proprietor or single-member LLC operating abroad, you report business income on Schedule C of your Form 1040, just as you would for a domestic business. Your net self-employment income is subject to both income tax and self-employ...

Question 11

What is the treaty tie-breaker rule?

Accepted Answer

The treaty tie-breaker rule is a provision found in most US tax treaties that determines which country has primary taxing rights when an individual is considered a tax resident of both countries. This situation commonly arises for US citizens living abroad, green card holders who have moved overseas, and individuals who maintain significant ties to both countries.

The tie-breaker rules typically follow a hierarchical sequence of tests, applied one at a time until residency is determined in favo...

Question 12

Are foreign Social Security payments taxable?

Accepted Answer

The US tax treatment of foreign Social Security payments depends on whether the US has a tax treaty with the paying country and the specific provisions of that treaty. There is no one-size-fits-all answer, but here are the general principles.

Under many US tax treaties, Social Security benefits paid by the foreign country are taxable only in the country of residence. This means if you receive a pension from, for example, the UK State Pension while living in the US, the treaty may exempt it from...

Question 13

How do exchange rates affect my tax return?

Accepted Answer

Exchange rates play a significant role in US tax returns for expats because all amounts must be reported in US dollars, regardless of the currency in which income was earned or expenses were paid. The conversion method you use can materially affect your tax liability.

For income, the IRS generally requires you to use the exchange rate that was in effect on the date the income was received or accrued. For convenience, the IRS accepts the use of the yearly average exchange rate for income receive...

Question 14

What is tax equalization for corporate expats?

Accepted Answer

Tax equalization is a policy that some multinational employers offer to employees who are assigned to work in a foreign country. The goal is to ensure that the employee's tax burden during the assignment is approximately the same as it would have been if they had stayed in their home country. This way, the employee is neither penalized nor rewarded from a tax perspective due to the international assignment.

Under a typical tax equalization program, the employer calculates a 'hypothetical tax' —...

Question 15

How are foreign inheritances taxed?

Accepted Answer

Receiving an inheritance from a foreign person generally has favorable US tax treatment — foreign inheritances are not subject to US income tax. However, there are important reporting requirements and potential tax traps to be aware of.

The core rule is that inheritances (both domestic and foreign) are generally not taxable income to the recipient under US law. This means if you inherit cash, property, or investments from a foreign relative, you do not include the value of the inheritance in yo...

Question 16

What is the US-Canada tax treaty and how does it help expats?

Accepted Answer

The US-Canada Tax Convention prevents double taxation and allocates taxing rights between the two countries for cross-border taxpayers.

Key benefits:

1. Elimination of double taxation: The treaty specifies which country has primary taxing rights. Employment income is generally taxed where work is performed; pensions are taxed in the country of residence.

2. Reduced withholding: Without the treaty, Canada withholds 25% on investment income paid to US residents. The treaty reduces this to 15% o...

Cross-Border Tax