Can I keep contributing to my Roth IRA now that I live in Canada?
Don't. Under CRA's folio position, a contribution made while you are a Canadian resident can disqualify the entire Roth IRA from treaty pension treatment β meaning Canada would then tax the account's growth every year, wiping out the whole reason you made the treaty election in the first place.
Why one contribution breaks everything
The treaty pension treatment depends on the Roth being a qualifying pension arrangement. CRA's view is that contributions by a Canadian resident are inconsistent with that status. The damage isn't limited to the new money β it taints the account.
| Action as a Canadian resident | Effect |
|---|---|
| Contribute to the Roth IRA | Risks destroying treaty treatment for the whole account |
| Roll a 401(k) into the Roth | Counts as a contribution β same risk |
| Leave it alone | Election stays intact; growth stays sheltered |
What to do instead
Direct new retirement savings to Canadian vehicles: RRSP contributions are deductible in Canada (though not in the US), and TFSA growth is tax-free in Canada (though the US taxes it annually β the mirror-image trap). Which is better depends on your citizenship and plans; there is no one-size answer for US persons in Canada.
Frequently asked questions
My US employer keeps matching into my Roth 401(k). Is that a contribution?
Employer contributions to a Roth 401(k) while you work in Canada raise the same issue. Talk to a cross-border advisor before the next pay cycle.
What if I already contributed last year?
Stop now and get advice. The CRA folio doesn't offer a formal cure, but fact-specific relief (including competent authority) may exist depending on amounts and timing.
Can I contribute again if I move back to the US?
As a US resident, normal Roth rules apply again. The Canadian restriction only matters while you are a Canadian tax resident.
Sources
- https://www.edwardjones.ca/ca-en/market-news-insights/guidance-perspectives/tax-considerations-americans-living-canada
- https://www.canada.ca/en/revenue-agency/services/tax/technical-information/income-tax/income-tax-folios-index/series-5-international-residency/folio-3-cross-border-issues/income-tax-folio-s5-f3-c1-taxation-roth-ira.html (CRA Folio S5-F3-C1)