The Cross-Border HSA Guide for Canadians in the USA

Health Savings Accounts now hold roughly $130 billion in assets across about 38 million US accounts, according to figures tracked by industry research group Devenir. For Canadians working in the United States on a TN visa, H-1B, or green card, the HSA is one of the most tax-efficient vehicles US law offers. It is also one of the easiest to mishandle the moment a return to Canada becomes part of the plan.

The mechanics are straightforward on the US side. Contributions to an HSA are deductible from federal taxable income under IRC §223, growth inside the account is not taxed, and qualified medical withdrawals are not taxed either. For 2025, the IRS limits are $4,300 for self-only coverage and $8,550 for family coverage, with a $1,000 catch-up after age 55. Eligibility requires enrollment in a high-deductible health plan that meets the minimum deductible and out-of-pocket maximum set each year in IRS Revenue Procedure releases and summarized in Publication 969.

How the CRA actually treats a Canadian-resident HSA

The Canada Revenue Agency has not issued a folio that specifically blesses the US HSA, and the Canada-US tax treaty does not name it the way Article XVIII names the 401(k) and IRA. Practitioners on both sides of the border generally take the position that, once the holder is a Canadian tax resident, the account loses its tax-sheltered character for Canadian purposes. Interest, dividends, and realized gains inside the account become reportable on the Canadian return in the year earned, and any US tax paid is typically claimed as a foreign tax credit.

Form T1135 also enters the picture. A Canadian-resident holder of foreign property with a cost above CAD 100,000 has to file the foreign income verification statement annually. An HSA balance counts. None of this is exotic; it is the same reporting framework that catches forgotten US brokerage accounts every spring.

The receipt-tracking question

Because the HSA has no deadline to reimburse a qualified medical expense, some advisors suggest paying out of pocket while resident in the US and keeping the receipts. Years later, the holder can withdraw the accumulated total tax-free under US rules. The catch is timing. A withdrawal taken after the holder has become a Canadian resident is still tax-free in the eyes of the IRS, but the Canadian treatment of the inside buildup that funded it is a separate question, and the CRA has not issued public guidance that the reimbursement itself flips back to non-taxable on the Canadian side.

“There is no clean Canadian wrapper for an HSA, so the planning has to happen before the residency change, not after.”

Practical steps before a move

Holders typically have three live options before becoming a Canadian resident again. Spend the balance down on qualified US medical expenses while still on a US plan. Reimburse out-of-pocket expenses from prior years if records were kept. Or leave the account in place and accept the additional Canadian reporting and tax drag, which is often the right answer for small balances where compliance costs dwarf the tax benefit.

Investment selection inside the account matters more than most people think. A Canadian-resident HSA holder can run into the same Passive Foreign Investment Company rules that affect Canadian mutual funds held by US persons, only in reverse: certain US-domiciled funds may be treated as offshore investment fund property by the CRA, which complicates the annual filing. Holding individual stocks or US-listed ETFs is generally cleaner than holding mutual funds inside an HSA if a Canadian return is on the horizon.

Penalties for non-qualified withdrawals before age 65 remain at 20% on top of ordinary income tax under IRC §223(f). After age 65 the 20% additional tax falls away and the account functions more like a traditional IRA for non-medical withdrawals. Form 8889 has to be filed every year an HSA is contributed to, distributed from, or carried by a US taxpayer. This is general reporting, not personal tax advice; cross-border filers should verify their position with a practitioner licensed in both jurisdictions before acting.