For any US citizen living in Canada, taxes arrive in two directions every year. Tohme Accounting has been navigating cross-border obligations for Americans in Ottawa and Toronto since 2011. This guide covers the exact sequence: which returns to the file first, which forms apply to your situation, and where most dual filers go wrong.
The United States taxes based on citizenship, not residence. If you hold a US passport, you file a Form 1040 reporting worldwide income every year, regardless of how long you have lived in Canada. Canada taxes based on residency: as a Canadian resident, you file a T1 return reporting all income earned worldwide. Both obligations exist at the same time. The US-Canada Tax Treaty does not eliminate either filing requirement. It provides tools to prevent double taxation, but those tools must be actively claimed on the correct forms. Every US citizen living in Canada faces these taxes whether they have been in the country one year or twenty.
Start with both document sets before opening either return. Canadian documents: T4 slips for employment income, T4A for self-employment or pension income, T5 for investment income, T3 for trust income, and RRSP and TFSA account statements. US documents: W-2 if applicable, 1099 forms, and US investment account statements. For both returns, all Canadian dollar amounts must be converted to US dollars using the Bank of Canada annual average exchange rate for the tax year. Organizing both sets at the same time prevents delays mid-filing.
In most situations, the Canadian T1 return should be filed before the US Form 1040. The reason is sequencing: the Canadian income tax you pay becomes the foreign tax credit you claim on your US return via Form 1116. If you file the US return first, the Canadian tax has not yet been assessed, and you cannot accurately calculate the credit you are entitled to claim. The CRA deadline is April 30 for most filers, or June 15 if you or your spouse are self-employed, though any balance owing is still due April 30. Quebec residents file a separate TP-1 return with Revenu Québec in addition to the federal T1.
US citizens living abroad receive an automatic two-month extension, making the Form 1040 deadline June 15 rather than April 15. No form is required to claim this extension. A further extension to October 15 is available by filing Form 4868. On the 1040, the two primary relief tools are Form 2555, which excludes up to $130,000 of foreign earned income for the 2025 tax year, and Form 1116, which provides a dollar-for-dollar credit for Canadian taxes paid. Form 2555 does not eliminate US self-employment tax. For most Canadians with employment income, Form 1116 produces the better outcome, but the right choice depends on your specific income mix.
The FBAR, filed as FinCEN Form 114, is required if your Canadian financial accounts exceed $10,000 in aggregate at any point during the year. This includes registered accounts: RRSP, TFSA, and non-registered investment accounts all count toward the threshold. Once the threshold is reached, even zero-balance accounts must be reported. The FBAR deadline is October 15, with an automatic extension that requires no action on your part. FBAR filing is separate from income tax filing and carries its own penalties for non-compliance. For a full walkthrough of FBAR obligations for Canadians, see the complete FBAR guide for US citizens in Canada.
Beyond the core T1 and 1040, several additional forms may be required depending on your assets and accounts. Form 8938 (FATCA) applies if foreign financial assets exceed $200,000 on the last day of the year or $300,000 at any point. Form 8833 discloses treaty-based return positions to the IRS. Form 8621 applies to Canadian mutual funds classified as Passive Foreign Investment Companies, a common and frequently overlooked issue. T1135 is the CRA form required for Canadian residents holding more than $100,000 CAD in foreign assets. Not every filer needs all of these, but knowing which apply prevents penalties.
A Tax-Free Savings Account is tax-free in Canada. For US citizens living in Canada, taxes on TFSA income are a different story. The US-Canada Tax Treaty does not extend TFSA protection to American tax law, which means income earned inside your TFSA, including interest, dividends, and capital gains, is generally taxable in the United States each year. This surprises most US citizens who assumed the tax-free status applies on both sides of the border. That income must be tracked and reported on your US return annually, regardless of whether any amount was withdrawn. Some TFSAs may also require Form 3520 reporting.
Samer Tohme, CPA, has been coordinating T1 and Form 1040 returns for US citizens in Ottawa and Toronto since 2011. The process covers the correct filing sequence, the Form 1116 versus Form 2555 decision based on each client’s income mix, and the full reporting picture including FBAR, FATCA, and registered account treatment. For US citizens filing for the first time after a move to Canada, or returning after a gap in compliance, a free consultation with Samer Tohme establishes exactly what is required before any engagement begins. Book a Free Consult at the contact page.
Several errors appear consistently in cross-border filing. Filing the US return before the Canadian T1 is assessed breaks the foreign tax credit sequencing and can result in a higher US tax bill. Using Form 2555 without accounting for self-employment tax creates unexpected balances for freelancers and sole proprietors. Assuming TFSA income is non-reportable to the IRS results in missed annual disclosures. Missing the June 15 US deadline because of confusion with the April 15 date that applies to domestic US filers. Failing to report RRSP and TFSA balances on the FBAR because they are registered accounts. Each of these errors is correctable, but easier to prevent.
The US-Canada Tax Treaty prevents the same income from being taxed twice. It does not remove the US filing obligation for Americans living in Canada. Taxes owed to the US persist because the treaty contains a savings clause that allows the United States to tax its own citizens as if the treaty did not exist for most provisions, which is why the filing obligation persists regardless of how long you have lived in Canada. RRSP growth receives treaty-based tax deferral: you do not pay US tax on inside growth annually, and the old Form 8891 election is no longer required. Understanding the treaty as a relief mechanism, rather than an exemption, is essential to filing it correctly. Relief must be actively claimed on the right forms. For more details, see the Canada-US tax treaty explained guide.
Both countries operate on the same calendar tax year but have different filing deadlines. For the 2025 tax year filed in 2026, the CRA T1 deadline is April 30 for most individuals. Self-employed filers have until June 15, but any balance owing is still due April 30. The IRS Form 1040 deadline for US citizens abroad is June 15, an automatic two-month extension that requires no action. An additional extension to October 15 is available via Form 4868. The FBAR also automatically includes the October 15 deadline. The most common calendar error is assuming April 15 applies; that date is for US residents only.
For a US citizen living in Canada, taxes require managing two systems with different deadlines, different forms, and a specific filing sequence that determines how effectively the foreign tax credit protects against double taxation. Filing Canada first, selecting the right relief mechanism on your US return, and reporting all registered accounts correctly are the three decisions that shape your outcome each year. If any part of this process is unclear for your specific situation, a free consultation with Samer Tohme, CPA, will establish exactly what is required.
File the Canadian T1 return first in most situations. The Canadian income tax assessed becomes the foreign tax credit you claim on your US Form 1040 via Form 1116. If you file the US return first, the Canadian tax has not yet been assessed, which means you cannot accurately calculate the credit you are entitled to claim. Sequence matters because it directly affects how much US tax you may owe after credits are applied. For US citizens filing for the first time in Canada, the order is one of the most important decisions in the process.
US citizens living abroad receive an automatic two-month extension, making the IRS deadline June 15 rather than the April 15 date that applies to US residents. No form is required to claim this extension. A further extension to October 15 is available by filing Form 4868 before June 15. Note that any US tax owing is technically due by April 15, even if you have the extension to file later. The extension covers the filing deadline, not the payment deadline. This distinction matters if you expect to owe a balance.
Yes. Even though an RRSP is a registered account in Canada, it must be reported on the FBAR (FinCEN Form 114) if the aggregate value of your Canadian financial accounts exceeds $10,000 at any point during the year. The US-Canada Tax Treaty provides deferral on RRSP growth, meaning you do not pay US tax on inside growth annually. However, the account still requires FBAR disclosure regardless of that deferral treatment. The old Form 8891 election is no longer required; the deferral position is taken directly on your Form 1040. Withdrawals must be reported on the Canadian T1 return when made.
Form 2555 (Foreign Earned Income Exclusion) allows you to exclude up to $130,000 of foreign earned income from US taxation for the 2025 tax year. Form 1116 (Foreign Tax Credit) provides a dollar-for-dollar credit for Canadian income taxes already paid against your US tax liability. For most US citizens employed in Canada, Form 1116 produces the better outcome because Canadian tax rates are typically equal to or higher than US rates. Form 2555 does not eliminate US self-employment tax, which is a critical distinction for anyone earning self-employment income. Each situation requires individual review to determine the better choice.
Yes. The TFSA is tax-free under Canadian law, but the US-Canada Tax Treaty does not extend that protection to US tax purposes. Income earned inside a TFSA, including interest, dividends, and capital gains, is generally taxable in the United States each year, regardless of whether any amount was withdrawn. This is one of the most common surprises for US citizens living in Canada who assumed both tax authorities treat the account identically. That income must be tracked and reported on your US return annually. Some TFSAs may also require additional reporting under Form 3520, depending on the account structure.
The IRS has programs specifically for US citizens who have not filed returns from abroad. The Streamlined Foreign Offshore Procedures allow eligible non-willful filers to catch up on three years of tax returns and six years of FBARs with reduced penalty exposure. Eligibility depends on whether the failure to file was non-willful, meaning the result of unawareness rather than intentional avoidance. If you have unfiled years, the first step is establishing what is owed before contacting the IRS directly. If your situation involves missed filings from Canada, a free consultation with Samer Tohme, CPA, will clarify your position and options. Book a Free Consult for US tax filing for Americans in Canada.
