You will be considered a United States resident for tax purposes if you meet the substantial presence test for the calendar year. To meet this test, you must be physically present in the United States (U.S.) on at least:
31 days during the current year, and
183 days during the 3-year period that includes the current year and the 2 years immediately before that, counting:
All the days you were present in the current year, and
1/3 of the days you were present in the first year before the current year, and
1/6 of the days you were present in the second year before the current year.
Example 1:
You were physically present in the U.S. on 120 days in each of the years 2019, 2020, and 2021. To determine if you meet the substantial presence test for 2021, count the full 120 days of presence in 2021, 40 days in 2020 (1/3 of 120), and 20 days in 2019 (1/6 of 120). Since the total for the 3-year period is 180 days, you are not considered a resident under the substantial presence test for 2021.
Example 2:
Another example derived from the financial document of the University of Washington is if you are an individual who only has a B-1/B-2 visa to the U.S. but is present in the U.S. for 84 days in 2014, 168 days in 2013, and 261 days in 2012, then the test would show residency, with 183.5 days of presence. In this situation, you will pass the substantial presence test of tax in the U.S. and will be taxed based on the policy. Also, you most likely will have issues with immigration given the 261 days spent in the U.S. in one year!
Substantial Presence Test Calculation
Year
Number of Days in US
Calculation
Current Year
2014
84
84 x 1 = 84 days
1st Preceding Year
2013
168
168 x 1/3 = 56 days
2nd Preceding Year
2012
261
261 x 1/6 = 43.5 days
Total = 183.5 days
Residency Determination = Resident Alien for Tax Purposes
Canadian Snowbird Taxation
According to Forbes, Canadians traveling stateside can generally enter the U.S. for up to six months without needing a visa. However, just because you can stay in the country without a visa for those months doesn’t mean the IRS won’t deem you a U.S. resident for tax purposes. It might seem odd, but you can stay in the U.S. long enough to owe taxes without ever changing your immigration status to resident. If so, the taxation policies will be the same for all other people who will be taxed based on the substantial presence test.
Example:
If Mr. Smith is a Canadian snowbird and was in the U.S. for 180 days in 2020, 180 days in 2019, and 180 days in 2018, the calculation is as follows:
2016 = 180 days
2015 = 180 days/3= 60 days
2014 = 180 days/6 = 30 days
Total = 270 days, so Mr. Smith would qualify under the substantial presence test and would be subject to U.S. income tax on his worldwide income unless another exception applies.
Days of Presence in the United States
You are treated as present in the U.S. on any day you are physically present in the country, at any time during the day. However, there are exceptions to this rule. Do not count the following as days of presence in the U.S. for the substantial presence test:
Days you commute to work in the U.S. from a residence in Canada or Mexico if you regularly commute from Canada or Mexico.
Days you are in the U.S. for less than 24 hours, when you are in transit between two places outside the United States.
Days you are in the U.S. as a crew member of a foreign vessel.
Days you are unable to leave the U.S. because of a medical condition that develops while you are in the United States.
The term United States (U.S.) includes the following areas:
All 50 states and the District of Columbia.
The territorial waters of the United States.
The seabed and subsoil of those submarine areas that are adjacent to U.S. territorial waters and over which the United States has exclusive rights under international law to explore and exploit natural resources.
The term does not include U.S. territories or U.S. airspace.
Exempt Individual
Do not count the days for which you are an exempt individual. The term “exempt individual” does not refer to someone exempt from U.S. tax, but to anyone in the following categories:
An individual temporarily present in the U.S. as a foreign government-related individual under an “A” or “G” visa, other than individuals holding “A-3” or “G-5” class visas.
A teacher or trainee temporarily present in the U.S. under a “J” or “Q” visa, who substantially complies with the requirements of the visa.
A student temporarily present in the U.S. under an “F,” “J,” “M,” or “Q” visa, who substantially complies with the requirements of the visa.
A professional athlete temporarily in the U.S. to compete in a charitable sports event.
If you exclude days of presence in the U.S. for purposes of the substantial presence test because you were an exempt individual or were unable to leave the U.S. because of a medical condition or medical problem, you must include Form 8843, Statement for Exempt Individuals, and Individuals With a Medical Condition, with your income tax return. If you do not have to file an income tax return, send Form 8843 to the address indicated in the instructions for Form 8843 by the due date for filing an income tax return.
Suppose you do not timely file Form 8843. In that case, you cannot exclude the days you were present in the U.S. as an exempt individual or because of a medical condition that arose while you were in the U.S. This does not apply if you can show, by clear and convincing evidence, that you took reasonable actions to become aware of the filing requirements and significant steps to comply with those requirements.
Closer Connection Exception to the Substantial Presence Test
Even if you met the substantial presence test, you can still be treated as a nonresident of the United States for U.S. tax purposes if you qualify for one of the following exceptions: