If you've moved abroad for work, split your time between Canada and another country, or hold investments and property back home while living overseas, your tax situation is more complicated than a standard return. Many Canadians assume that once they leave, the CRA no longer has a claim on their income. That assumption is one of the most common (and costly) mistakes we see.

Here's what you actually need to know heading into the 2026 tax season.

Are You Still a Canadian Tax Resident?

Leaving the country doesn't automatically make you a non-resident for tax purposes. The CRA looks at your residential ties to Canada, not just your physical location. Significant ties include:

• A home available to you in Canada

• A spouse or common-law partner who remains in Canada

• Dependents living in Canada

Secondary ties, like a Canadian driver's license, bank accounts, or provincial health coverage, are also weighed, especially if you have several of them. Depending on how many ties you keep, you could be classified as a factual resident, a deemed resident, a non-resident, or a deemed non-resident, and each status comes with different filing obligations. Getting this classification wrong is where most cross-border tax problems start.

What Non-Residents Still Need to File

Even once you're confirmed as a non-resident, Canada can still tax you on Canadian-source income. This commonly includes:

• Rental income from Canadian property

• Employment or business income earned in Canada

• RRSP and RRIF withdrawals

• Canadian pension income

Non-residents with rental properties, in particular, have specific withholding and filing requirements (commonly involving Section 216 elections) that are easy to miss without guidance, and missing them can mean overpaying tax with no easy way to recover it later.

Tax Treaties & Avoiding Double Taxation

The good news: Canada has tax treaties with many countries specifically to prevent you from being taxed twice on the same income. In broad terms, these treaties determine:

• Which country has the primary right to tax specific types of income

• How you claim a foreign tax credit in one country for tax already paid in the other

• Special rules for pensions, dividends, and business income that cross borders

The details vary significantly by country, so the specific treaty between Canada and your country of residence matters. This isn't a one-size-fits-all calculation.

Common Mistakes Canadians Abroad Make

We see the same handful of errors again and again:

1. Forgetting to file a departure return. If you've officially left Canada, a departure return reports your deemed disposition of certain assets and sets your official date of non-residency.

2. Missing foreign asset reporting (Form T1135). If you're still a Canadian resident and hold foreign property above a certain value, this form is mandatory, and penalties for missing it are steep.

3. Assuming "no Canadian income" means "no obligations." Ties to Canada, not just income, can trigger a filing requirement.

4. DIY-ing a dual-country filing. Preparing a US or other foreign return alongside a Canadian one without coordinating the two often leads to double taxation or a mismatched foreign tax credit.

How Tax Eagles Can Help

Cross-border tax isn't something to guess your way through. We help Canadians abroad, and non-residents earning Canadian income, sort out their residency status, file correctly on both sides of the border, and make full use of the treaty and credit provisions available to them, so nothing gets missed and nothing gets taxed twice.

Not sure if you're still a Canadian tax resident, or what you need to file this year? Book a consultation and we'll walk through your specific situation together.