US Citizens Living in Canada: The Filing Stack Nobody Warned You About
Almost every country taxes people who live there. The United States also taxes its citizens, wherever in the world they live and however long they have been gone.
If you are a US citizen or green card holder living in Canada, that means two tax systems apply to you simultaneously, for life, until you formally expatriate. It applies to people born in the US who left as infants, and to people who inherited citizenship from a parent and have never held a US passport.
This article is about what you actually have to file and where the real problems sit. There are no dollar figures for the US obligations here, deliberately. Those thresholds are set by US law, they change, and they cannot be confirmed against a Canadian government source. Every one is linked to the IRS page that carries the current number.
The filing stack
| Filing | To whom | Roughly, when it applies |
|---|---|---|
| Canadian T1 return | CRA | You are resident in Canada |
| US Form 1040 | IRS | You are a US citizen or green card holder |
| FBAR (FinCEN 114) | US Treasury | Aggregate foreign account balances pass a threshold |
| Form 8938 | IRS | Foreign financial assets pass a higher threshold |
| T1135 | CRA | Specified foreign property cost passes $100,000 |
| Forms 3520 / 3520-A | IRS | Certain foreign trusts |
| Form 5471 | IRS | You own or control a foreign corporation |
Two of those catch almost everyone and are missed almost as often.
FBAR is not a tax return. It is a Treasury report of your foreign financial accounts, and for a US person in Canada every Canadian account is foreign. Chequing, savings, RRSP, TFSA, RESP, and any account you merely have signing authority over, including a business account or a parent’s account. The threshold is on the aggregate of all accounts, not each one. Penalties for failing to file are severe and are assessed per account per year, independently of whether any tax was owed. See the IRS FBAR page.
Form 5471 catches incorporated professionals. If you own a Canadian corporation, you likely have a US information return obligation, and the penalties for not filing it are substantial even in a year the company earned nothing. Anyone who incorporated in Canada without telling their US preparer should assume this applies until told otherwise.
Why you usually owe the US nothing, and still must file
Two mechanisms usually eliminate the US tax, and neither eliminates the filing.
The foreign earned income exclusion excludes a band of foreign employment or self-employment income from US tax, for people who meet a residence or physical presence test.
The foreign tax credit credits Canadian tax paid against US tax owing. Because Canadian rates are generally higher than US rates on the same income, this typically wipes out the US liability by itself.
The practical result for most people: a US return showing zero owing, filed every year, forever. The obligation is the filing, not the tax.
The credit runs in the other direction too. Canada gives a federal foreign tax credit for US tax paid on US-source income. Getting the ordering right matters, because crediting in the wrong direction can leave tax stranded in one country with no way to recover it.
The accounts that go wrong
This is where a US person in Canada loses real money, and it is entirely avoidable if you know before you open the account.
The RRSP is fine. The Canada-US treaty allows deferral of US tax on RRSP and RRIF growth, which is why it is the one registered account that behaves the way you would hope.
The TFSA is not. It has no equivalent treaty protection. To the IRS it is generally an ordinary taxable account, so income and gains inside it are taxable to you in the US every year while remaining tax-free in Canada. Depending on how the plan is structured it may also be treated as a foreign trust, bringing Forms 3520 and 3520-A with their own penalties. A TFSA is frequently the worst account a US person in Canada can hold, which is exactly the opposite of the advice everyone else in Canada receives.
The RESP has the same problem and is often treated as a foreign trust, though the government grant makes the calculation less one-sided.
Canadian mutual funds and ETFs are a serious trap. Most are PFICs, passive foreign investment companies, under US rules. The reporting is punitive and the default tax treatment is designed to be worse than holding the asset directly. A Canadian investor doing the sensible thing, buying a low-cost Canadian-listed index fund, can create a compliance problem out of proportion to the investment.
The usual workaround is to hold US-listed funds instead, or individual securities. That is a portfolio decision with real consequences, and it should be made deliberately rather than discovered afterwards.
Selling your home
Canada exempts the gain on a principal residence entirely. The US exempts only a band of it, and taxes the rest.
So a long-held Ottawa home can produce a large US tax bill with no Canadian tax against which to claim a credit, because Canada charged nothing. This is one of the few situations where a dual filer genuinely owes the US money, and it surprises people at exactly the wrong moment.
If a sale is coming and the accrued gain is large, model it before you list.
They already know
Canadian financial institutions report accounts held by US persons to the CRA, which passes the information to the IRS under FATCA. This has been operating for years.
The old assumption that a US citizen quietly living in Canada is invisible has not been true for a long time. Bank onboarding now routinely asks about US citizenship and place of birth.
If you have not been filing
You are not unusual. Large numbers of people discover this obligation in their forties.
There are US amnesty routes for taxpayers whose failure to file was non-wilful, which broadly means you did not know. They generally require filing several years of back returns and several years of FBARs, and they can eliminate the penalties. They are available only before the IRS contacts you.
Two things to avoid:
Do not quietly start filing this year and ignore the past. Filing a current return without addressing the back years is visible, and it can be read as deliberate.
Do not renounce citizenship as a first move. Expatriation has its own tax regime, including a potential exit tax, and you generally must certify several years of compliance to renounce cleanly. Renouncing while non-compliant is worse than not renouncing.
What to do
- Establish whether you are a US person. Born there, naturalised, green card holder, or a citizen through a parent. If you are unsure, find out.
- List every account, including registered plans and anything you have signing authority over. That list drives FBAR and Form 8938.
- Check the TFSA and RESP position before contributing another dollar.
- Check whether you hold Canadian mutual funds or ETFs. If you do, the PFIC question is live.
- If you own a Canadian corporation, assume Form 5471 applies.
- If you are behind, get advice before filing anything. The order of operations determines whether an amnesty route stays open.
- Confirm your Canadian residency position as well, per determining your residency status.
The Canadian side of this is work I can do. The US side needs a US-licensed preparer, and the two need to be coordinated rather than done independently, because the credit ordering between them is where the money is won or lost.
If you are a US person in Canada and are not certain what you should be filing, a scoping conversation is worth having before another year is added to the pile.
Sources & references
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