Planning to spend the 2026–2027 winter in Florida, Arizona, California, Texas, or another sunny U.S. destination? Before booking a long stay, understand how U.S. tax residency rules count your days.
The commonly used phrase “182-day rule” is a useful warning, but it is not the complete rule. The U.S. Internal Revenue Service (IRS) applies the Substantial Presence Test, which uses a weighted three-year calculation. A Canadian can spend fewer than 183 days in the United States during the current year and still meet that test.
This guide explains the rules for Canadian snowbirds, including travel-day tracking, Form 8840, the Canada–U.S. tax treaty, Canadian residency, state tax exposure, and U.S. home ownership.
Table of Contents
- The 182-Day Rule Is Not a Simple 182-Day Rule
- How the Substantial Presence Test Works
- What Counts as a Day in the United States
- How to Track Your Travel Days
- Three Practical Examples for 2026
- The Closer Connection Exception and Form 8840
- The Canada–U.S. Tax Treaty Tie-Breaker
- Canadian Residency and State Tax Exposure
- Why Owning a U.S. Home Does Not Automatically Make You a U.S. Tax Resident
- Pre-Departure Checklist for the 2026–2027 Winter
The 182-Day Rule Is Not a Simple 182-Day Rule
The phrase “182-day rule” usually refers to staying at 182 days or fewer in the United States during a calendar year. That figure matters because the closer connection exception generally requires fewer than 183 current-year days.
However, the IRS also looks at your U.S. presence during the current year and the two preceding years. The calculation is:
- All days in the current year
- One-third of the days in the first preceding year
- One-sixth of the days in the second preceding year
For the 2026 tax year, the calculation is:
2026 U.S. days + one-third of 2025 U.S. days + one-sixth of 2024 U.S. days
If the total is 183 or more, and you were physically present in the United States for at least 31 days in 2026, you generally meet the Substantial Presence Test.
The test applies to a calendar year. A winter trip from November 2026 through March 2027 crosses two separate tax years, so your days must be allocated between 2026 and 2027.
How the Substantial Presence Test Works
The IRS considers you a U.S. resident for tax purposes when both conditions apply:
- You were physically present in the United States for at least 31 days during the current year.
- Your weighted three-year total is at least 183 days.
For example, if you spend 120 days in the United States during each of 2024, 2025, and 2026:
- 2026: 120 days
- 2025: 120 ÷ 3 = 40 days
- 2024: 120 ÷ 6 = 20 days
- Weighted total: 180 days
You would not meet the Substantial Presence Test for 2026 based on those figures.
This is why a consistent stay of approximately 120 days per year is often used as a planning reference. It is not a universal safe harbour, however. Your actual day history, immigration status, exceptions, tax home, and connections must be considered.
For official guidance, review the IRS Substantial Presence Test.
What Counts as a Day in the United States
Generally, any day on which you are physically present in the United States for any portion of the day counts as a U.S. day.
This can include:
- Arrival days
- Departure days
- Days spent crossing the land border for shopping or appointments
- Short visits while travelling through the United States
- Days spent at a U.S. vacation home
- Days spent in multiple U.S. states during the same trip
Some limited exceptions exist. For example, certain transit days of less than 24 hours between foreign destinations and specific medical circumstances may be excluded. These exceptions are technical and should not be assumed to apply to an ordinary snowbird stay.
A practical approach is to count every day unless a qualified tax professional confirms that an exception applies.
How to Track Your Travel Days
Do not rely solely on memory. A missed weekend visit or an unrecorded shopping trip can affect your calculation.
For a simpler way to stay organized, track your U.S. travel days with the free Snowbird Day Tracker. Canadians can sign up for a free account and manage all their U.S. travel days in one place, making it easier to monitor entry and exit dates throughout the year.
Maintain a travel log showing:
- Date of entry into the United States
- Date of departure
- Port of entry or airport
- State or states visited
- Purpose of the trip
- Supporting documents
Useful records may include:
- Airline itineraries and boarding passes
- Passport stamps, where available
- Hotel and rental records
- Credit-card statements
- Vehicle fuel or toll receipts
- Calendar entries
- Border-crossing records
The official U.S. I-94 website allows travelers to retrieve an I-94 admission record, where applicable, and request a limited travel history. The site notes that its travel-history tool is provided to assist travelers and is not an official legal record. Most Canadian citizens visiting by land do not receive a traditional paper I-94, but border and travel records may still exist.
Keep your own log and reconcile it with available government records before filing any U.S. forms.
Three Practical Examples for 2026
Example 1: A 90-day stay
Assume you spend 90 days in the United States during each of 2024, 2025, and 2026:
- 2026: 90 days
- One-third of 2025: 30 days
- One-sixth of 2024: 15 days
- Weighted total: 135 days
You would not meet the Substantial Presence Test based on these figures.
A 90-day winter stay generally provides considerable flexibility, although state rules, income-producing activities, and other circumstances still require attention.
Example 2: A 120-day stay
Assume you spend 120 days in the United States during each of the three years:
- 2026: 120 days
- One-third of 2025: 40 days
- One-sixth of 2024: 20 days
- Weighted total: 180 days
You would remain below the 183-day Substantial Presence Test threshold for 2026.
The following year, recalculate using your 2027, 2026, and 2025 days. The calculation changes every year.
Example 3: A 150-day stay
Assume you spend 150 days in the United States during each year:
- 2026: 150 days
- One-third of 2025: 50 days
- One-sixth of 2024: 25 days
- Weighted total: 225 days
You meet the Substantial Presence Test. However, because your actual 2026 presence is fewer than 183 days, you may qualify for the closer connection exception if you maintain your tax home and closer connection in Canada and file Form 8840 on time.
That exception is not automatic.
The Closer Connection Exception and Form 8840
The closer connection exception may allow an eligible Canadian to be treated as a U.S. nonresident even after meeting the Substantial Presence Test.
Generally, you must:
- Spend fewer than 183 days in the United States during the current year
- Maintain a tax home in Canada for the entire year
- Have a closer connection to Canada than to the United States
- Not have taken steps toward lawful permanent resident status
- File Form 8840 by the applicable deadline
The IRS considers factors such as:
- Location of your permanent home
- Family and personal relationships
- Personal belongings
- Social, cultural, and religious affiliations
- Business activities
- Driver’s license
- Voting jurisdiction
- Official forms and documents
Form 8840 is a statement supporting your position. It does not erase U.S. days, and it does not replace careful recordkeeping.
If you meet the Substantial Presence Test but are under 183 actual U.S. days, do not assume you are protected simply because you are Canadian. Determine whether you qualify and file the required form on time.
The Canada–U.S. Tax Treaty Tie-Breaker
The closer connection exception is generally unavailable when you spend 183 or more actual days in the United States during the current year.
In that situation, the Canada–U.S. tax treaty may become relevant. Treaty tie-breaker rules can determine which country is your treaty residence when both countries could regard you as resident under their domestic laws.
Factors may include:
- Where you have a permanent home
- Where your personal and economic relations are closer
- Where you have a habitual abode
- Your citizenship or nationality
A treaty position can involve U.S. tax filings and disclosure forms, including Form 1040-NR and, where required, Form 8833. The correct filing depends on your income, residency facts, and treaty position.
This is not a do-it-yourself area for most snowbirds near the threshold. Obtain cross-border tax advice before exceeding 182 actual U.S. days.
Canadian Residency and State Tax Exposure
U.S. federal tax residency and Canadian tax residency are separate questions.
Canada generally considers residential ties such as:
- A home available in Canada
- A spouse or dependents in Canada
- Provincial health coverage
- Personal and economic connections
- Employment or business relationships
- Social and community ties
Spending winter in the United States does not automatically end Canadian tax residency. Similarly, keeping a Canadian home does not automatically prevent U.S. tax residency.
State tax rules are also separate from the federal Substantial Presence Test. States may consider domicile, the number of days spent in the state, a permanent place of abode, and other connections. A state with no personal income tax may still impose property taxes, sales taxes, business taxes, or other obligations.
If your U.S. home is in a state with personal income tax, obtain state-specific advice. Avoid assuming that a federal Form 8840 position automatically resolves every state issue.
Why Owning a U.S. Home Does Not Automatically Make You a U.S. Tax Resident
Owning a condominium, house, or vacation property in the United States does not, by itself, make you a U.S. tax resident.
Federal residency is primarily determined through the Substantial Presence Test and applicable exceptions or treaty provisions. A U.S. property is not a standalone residency trigger.
Ownership can still matter because it may:
- Increase your physical presence in the United States
- Become part of your closer-connection analysis
- Create state tax considerations
- Generate rental income and filing obligations
- Create U.S. property-tax and insurance responsibilities
- Raise cross-border estate-planning questions
- Create FIRPTA withholding considerations when sold
For property-buying guidance, review Canada to USA’s U.S. real estate services and guide for Canadians buying U.S. property.
Pre-Departure Checklist for the 2026–2027 Winter
Before heading south, complete these steps:
- Calculate your 2024, 2025, and planned 2026 U.S. days.
- Separate 2026 and 2027 days if your stay crosses December 31.
- Include short visits and partial days unless a documented exception applies.
- Create a travel log using calendar entries and supporting documents. Use the free Snowbird Day Tracker to record entry and exit dates in one place.
- Review your I-94 and available travel history through the official CBP website.
- Determine whether you will meet the Substantial Presence Test.
- Assess whether your tax home and closer connection remain in Canada.
- Plan for Form 8840 if you meet the test but will spend fewer than 183 actual days in the United States.
- Review the Canada–U.S. treaty before planning 183 or more current-year days.
- Check state tax rules for the state where you will spend the most time.
- Review travel medical insurance for the full length of your stay, including pre-existing-condition requirements.
- Plan currency conversions for U.S. expenses using Canada to USA’s exclusive discounted currency exchange service.
The IRS Substantial Presence Test, IRS closer connection guidance, and Form 8840 instructions are useful starting points.
Disclaimer: This article provides general information for Canadian snowbirds and is not legal, immigration, accounting, or tax advice. U.S. and Canadian rules can change, and state requirements vary. Your residency, income, property ownership, immigration status, and family circumstances may produce a different result. Consult a qualified Canada–U.S. tax professional before relying on any day-count or filing strategy.
Contact Canada to USA for Cross-Border Guidance
Planning a U.S. winter involves more than counting days. Canada to USA helps Canadians navigate the United States with access to specialized referrals and cross-border services, including:
- Cross-border tax planning
- Travel medical insurance
- U.S. real estate services
- U.S. mortgages
- Home, auto, and liability insurance
- Vehicle shipping
- Immigration support
- Cross-border wealth management
- Exclusive discounted currency exchange
We can refer you to specialized agents and professionals who work specifically with Canadians. Contact Canada to USA at 1-844-226-8629 or info@canadatousa.com, and visit our cross-border services page.
