Snowbird Financial Planning in Ontario: What You Need to Know Before Heading South

Every winter, thousands of Ontario retirees pack up and head south — to Florida, Arizona, or elsewhere in the Sun Belt. The lifestyle makes sense: warmer weather, lower cost of living in many cases, and a chance to enjoy the retirement you worked hard to build. But the financial picture for snowbirds is more complicated than simply booking a flight and forwarding your mail.

If you're planning to spend extended time in the United States as an Ontario snowbird, understanding the tax, insurance, and estate implications is essential before you go.

The 183-Day Rule and U.S. Tax Residency

One of the most misunderstood risks for Canadian snowbirds is accidental U.S. tax residency. The U.S. uses what's called the Substantial Presence Test to determine whether foreign nationals owe U.S. income tax. This test counts not just the current year's days in the U.S., but also a fraction of the prior two years' days.

The formula: all days in the current year + 1/3 of days from the prior year + 1/6 of days from two years prior. If that total reaches 183, you may be considered a U.S. tax resident — with all the filing and tax obligations that come with it.

Most snowbirds know to stay under 183 days in a single year, but many don't realize the rolling calculation can catch them. Canadians who do meet the threshold can file IRS Form 8840 (Closer Connection Exception) to assert that their tax home remains Canada — but this requires timely filing and must be taken seriously. Careful day-counting and documentation of your ties to Canada (home, financial accounts, social connections) are not optional; they're essential.

Working with a financial planner who understands cross-border considerations can help you track this properly and avoid unintended consequences.

Out-of-Country Health Insurance: Not Optional

OHIP covers very little outside Canada, and a single medical emergency in the United States can result in bills in the hundreds of thousands of dollars. Out-of-country (OOC) health insurance is one of the most important purchases a snowbird makes — and also one of the most commonly underestimated.

Key considerations when shopping for OOC coverage:

• Pre-existing condition clauses — Many policies exclude claims related to conditions diagnosed or treated in the previous 6–12 months. Full disclosure is critical.
• Stability clauses — If your condition hasn't been "stable" (no changes in medication, symptoms, or treatment) for a defined period, coverage may be denied at claim time.
• Duration limits — Some employer or retiree group plans cap coverage at 30, 60, or 90 days per trip. Know your limit before you book.

Your financial plan should account for the annual cost of adequate OOC coverage, and your overall asset strategy should consider what a worst-case medical scenario looks like without sufficient coverage in place.

RRSP, RRIF, and Cross-Border Income Considerations

Canadian retirement income — from CPP, OAS, RRSP withdrawals, or RRIF payments — generally remains taxable in Canada under the Canada-U.S. Tax Treaty, even when you're living in the U.S. for part of the year. However, the treaty has nuances, and withholding tax rates can vary depending on the type of income and how it's structured.

If you hold U.S.-based investments or income-producing assets, there may be additional reporting requirements on both sides of the border. Financial accounts held in the U.S. above certain thresholds also trigger FBAR and FATCA reporting obligations for Canadians.

This is not an area to navigate without professional guidance. A financial planner coordinating with a cross-border tax specialist ensures your income sources are structured in the most efficient and compliant way possible.

Estate Planning Across Borders

U.S. estate tax can apply to non-residents who hold U.S. situs assets — including U.S. real property, U.S. stocks held directly, and some U.S. financial accounts. For Canadians with significant U.S.-held assets, this can create meaningful estate planning exposure.

The Canada-U.S. Tax Treaty offers some relief, but the thresholds and calculations are complex. If you own a condo in Florida or hold significant U.S. investments, your Canadian will and estate plan may not be sufficient on its own. Cross-border estate considerations should be reviewed by both a Canadian estate planning lawyer and a U.S. advisor familiar with Canadian clients.

Start the Conversation Before You Go

The best time to address snowbird financial planning is before your first extended trip south — not after you've already established patterns, purchased a U.S. property, or spent a year without proper insurance in place.

At Calm Money, Marc Pineault, financial planner, works with retiring and retired Ontarians in London and across southwestern Ontario who are planning or already living the snowbird lifestyle. The goal is to make sure your financial plan accounts for the full picture — income, taxes, insurance, and estate — so you can actually enjoy those winters in the sun.

Get in touch with Marc to review your snowbird financial plan before your next departure.

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This article is for educational purposes only and does not constitute personalized financial advice. Please consult a qualified financial planner before making any financial decisions.