Who Needs Cross-Border Tax Services? 7 Common Situations for Canadians

Most Canadians only ever deal with one tax system. There’s the CRA, a T1 every spring, maybe a refund. But a surprising number of people have a foot on each side of the border and would never describe themselves as “cross-border” taxpayers. Winters in Arizona. A Florida condo that gets rented out. A remote job with a company in Seattle. A U.S. passport sitting in a drawer. Any one of those can mean obligations with the IRS.

Yes, there’s a tax treaty, and it does keep most people from being taxed twice. What it doesn’t do is spare anyone the forms. Skip a U.S. filing and penalties can follow even if you owed nothing. Below are seven common situations where Canada US tax obligations show up and specialist help is worth a look.

1. Snowbirds Who Spend Long Winters in the U.S.

If you’re not a U.S. citizen, the IRS works out whether you’re a tax resident partly with a calculator. It’s called the substantial presence test. Every day you spent there this year counts as a full day; last year’s days count for a third each, and the year before that, a sixth. Get to 183 weighted days (with at least 31 of them this year) and the U.S. can treat you as a resident for tax purposes. Picture a couple who spend about four and a half months in Phoenix every winter. Do the arithmetic and they’re over the line.

Plenty of retired Canadians cross that line and have no idea. The usual fix is Form 8840, the Closer Connection Exception Statement, filed by the deadline to show your ties to Canada are stronger. Keep careful track of your days for provincial health coverage too. That runs on its own rules.

See also: How to Plan Your Next Career Step After Redundancy

2. Owners of U.S. Real Estate

A U.S. vacation property brings obligations the moment you rent it out or sell it. Rent from that property is taxable in the U.S. Left on default settings, the tenant or property manager may be on the hook to hold back 30% of the gross rent. The way around that is a U.S. non-resident return with an election to be taxed on net income. Selling has its own wrinkle. Under FIRPTA the buyer generally withholds 15% of the gross sale price, though a reduced withholding certificate can bring that down.

Canada wants to hear about it too. The rent goes on your Canadian return as well, and so does any gain when you sell; U.S. tax you paid comes back to you as a foreign tax credit. One more form to keep in mind is the T1135. If the place is rented and cost over $100,000, Canada’s foreign property reporting may kick in.

3. Remote Workers With a U.S. Employer

Working from home in Ontario for an American company is ordinary now. Where does the tax go? Generally, wherever you physically sit while doing the work, so if you live and work in Ontario, Canada gets most of it. The headaches come from the edges. A payroll department in Texas withholds U.S. tax it shouldn’t. You spend two weeks at head office in the spring. Or the “job” turns out, on paper, to be a contractor arrangement. Sorting out withholding, CPP and the right forms at the start is a lot cheaper than fixing them a year later.

4. U.S. Citizens and Green Card Holders Living in Canada

Americans are taxed on citizenship, not on where they live, which surprises people who left the U.S. as kids. Decades in Toronto don’t change it. A U.S. citizen here still files a U.S. return every year. If their Canadian bank accounts add up to more than US$10,000 at any moment in the year, there’s an FBAR as well, and Canadian investments can bring extra information returns. Usually the Canadian tax they’ve paid produces enough foreign tax credits that no U.S. tax is actually owed. The forms are mandatory anyway. Green card holders are in much the same spot until they formally give up that status.

5. People Moving Between the Two Countries

The year you move tends to be the messiest. On the way out of Canada you may face departure tax, where many of your assets are treated as if you’d sold them at fair market value on the day you left. On arrival in the U.S. there’s a part-year resident return to file, and some awkward questions about your RRSP, your TFSA and other Canadian accounts that the IRS views differently than the CRA does. Going the other way has its own steps. Plan before the move, not after, and you’ll have far more options.

6. Canadians With U.S. Investments

U.S. stocks in a Canadian brokerage account are easier. Your broker gets a Form W-8BEN from you, withholds 15% on U.S. dividends as the treaty allows, and you claim the foreign tax credit here. The details still matter, though. Where you hold them matters, though. Put U.S. dividend payers in a TFSA and the U.S. withholding is simply lost. An RRSP is the better home, since the treaty generally exempts dividends paid into one. Got a large U.S. portfolio? Then U.S. estate tax may be a live issue, and whether it bites depends on what your whole estate is worth, worldwide.

7. Canadian Businesses Selling Into the U.S.

Landing U.S. customers is great news, until the questions start. Has the company created a permanent establishment down there without meaning to? Should it be filing a treaty-based return? States set their own sales tax rules for remote sellers, and you’ll need to know which ones reach you. Your customers’ accounts payable people will ask for forms, a W-8BEN-E most often. Then, if staff go south to install equipment or deliver services, you’re into payroll and immigration territory as well. Get answers before the first big contract is signed. Trying to sort it out after an audit letter is miserable.

What Good Cross-Border Help Looks Like

Because each country’s rules feed into the other’s, it helps a great deal when one adviser (or one coordinated team) prepares, or at least checks, both your Canadian and your U.S. returns. Credits match up. The same exchange rates get used on both sides. Income doesn’t get reported twice or, worse, not at all. When comparing cross border tax services for Canadians, ask a few pointed questions. Does the firm do U.S. returns in-house? How does it handle FBARs and information returns? And how does it time the U.S. work against your Canadian filing?

Signs You Might Have Missed Something

• U.S. citizenship, or a right to it, and not a single U.S. return on record.
• Four-plus months a year down south, and nobody’s ever filed a Form 8840 for you.
• There’s a U.S. property you rent out, and no U.S. return for that income.
• You sold U.S. property and the withholding or the U.S. return never got dealt with.
• Money comes in from a U.S. source and you’re not sure how it’s being taxed.

People who come forward on their own and weren’t trying to dodge tax can often get penalty relief. So dealing with it now usually beats waiting.

Conclusion

Hardly anyone gets into cross-border trouble through one dramatic decision. It creeps in. Somebody buys a winter place, takes a remote job, forgets about the passport they got at birth. Recognize yourself in one of the seven situations? Spend an hour with someone fluent in both systems and find out what you should be filing. A penalty notice is a much worse way to learn.

Frequently Asked Questions

Do Canadian snowbirds have to file anything with the IRS?

Possibly. Once the weighted days pass the substantial presence test, a snowbird generally files Form 8840 to show a closer connection to Canada; skip it and the IRS may treat them as a U.S. resident.

Does the tax treaty mean I only pay tax in one country?

Not quite. Credits and exemptions under the treaty stop you paying twice, but you can still be required to file in both places when only one of them ends up collecting.

I’m a U.S. citizen living in Canada. Do I owe U.S. tax?

Often not, since Canadian tax usually produces enough foreign tax credits to cover it. The filing obligation doesn’t go away: a U.S. return every year, and an FBAR when your accounts pass the threshold.

Do I report my U.S. rental property in Canada?

Yes. Canadian residents report worldwide income, U.S. rental income and gains included, and claim credits for U.S. tax paid. Foreign property reporting may apply too.