Should I withdraw my RRSP as a lump sum or periodic RRIF payments after moving to the US?

For most people, the periodic route wins. Convert the RRSP to a RRIF and keep each year’s withdrawals inside the treaty’s periodic ceiling, and Canada withholds 15% instead of the 25% it takes on a lump-sum RRSP withdrawal. On a $300,000 balance that’s a $30,000 difference over a full drawdown. The lump sum still makes sense when you need the money now or the balance is small. A locked-in account follows pension law rather than tax law, and the unlocking rules differ by jurisdiction: what happens to my LIRA when I move to the US. There is a third route in a low-world-income year: electing under section 217 to be taxed at graduated rates instead, worked through in should I take the flat 25% or file a section 217 election. To run your own numbers against the RRIF ceiling, use the RRSP withdrawal comparator.

What does Canada withhold when a US resident pulls money out of an RRSP?

Canada withholds 25%. Once you’ve become a US resident, section 212(1) of the Income Tax Act charges a 25% Canadian tax on most amounts paid to you from Canada, and paragraph 212(1)(l) puts RRSP payments squarely inside that rule. The institution holds the tax back before the money reaches you.

That rate has nothing to do with your income level. It applies whether you pull a little or the whole account, and it’s Canada’s default answer any time the treaty doesn’t say otherwise. Your RRSP itself made the move with you intact, since RRSPs are not part of the deemed sale when you leave.

When does the treaty cut the rate to 15%?

When the payment counts as a periodic pension payment. Article XVIII(2)(a) of the US-Canada tax treaty lets Canada tax pensions that arise there, but caps the tax at 15% of the gross amount when a US resident is the beneficial owner of a periodic pension payment.

So the whole decision compresses into one word: periodic. The treaty doesn’t define it. Canada does, in its own statute, and that definition is where the lump-sum-versus-RRIF split lives.

What counts as a “periodic” payment?

Canada answers this in the Income Tax Conventions Interpretation Act, section 5. A payment out of an RRSP before maturity, or a full or partial commutation of it, is excluded from “periodic pension payment” outright, so an RRSP lump sum can’t reach 15% on either route.

RRIF withdrawals do qualify, up to a yearly ceiling built on the greater of twice the RRIF minimum and 10% of the fund’s January 1 value. The test runs on the year’s running total, so the payment that crosses the ceiling isn’t periodic at all: 25% comes off the whole cheque and not only the part over the line.

	Lump-sum RRSP withdrawal	Periodic RRIF withdrawals
Canadian withholding	25% under ITA s.212(1)	15% on payments that stay inside the ceiling, under treaty Article XVIII(2)(a); 25% on the payment that crosses it, in full
Counts as “periodic” under ITCIA s.5	No; a payment before maturity or a commutation is excluded outright	Yes, while the year’s running total stays within the greater of 2x the RRIF minimum and 10% of the January 1 value; the payment that carries the total past it is excluded, whole
Access to the money	Everything at once	Spread over years, with the ceiling recalculated each January 1
US side of it	The whole balance lands on one year’s Form 1040	Income and foreign tax credits spread across years
Tends to suit	Money with an immediate job, or a small balance	A larger balance you don’t need all at once

That greater-of figure is the working number, though it isn’t the whole test. Three refinements sit behind it, and two of them only ever leave you more room. First, the running total counts each payment net of its “specified portion”, which ITCIA s.5.1(2) defines as the part that section 146.3 doesn’t require anyone to include in income and that paragraph 212(1)(q) doesn’t catch, plus any part for which a paragraph 60(l) deduction is available. Second, property moved into the fund earlier in the same year counts in the 10% leg as though it had arrived before January 1. The third can cut either way: an annuity contract held inside the fund is either counted at its value in the 10% leg or left out of that base, with its yearly payments added to the ceiling separately instead. A fund holding annuity contracts gets priced on the statute rather than on the shorthand.

That’s why the standard play is a conversion: roll the RRSP into a RRIF, then keep each year’s withdrawals inside the ceiling. This page runs one direction only, a Canadian plan drawn down by someone who now lives in the US. Going the other way, back to Canada holding a US plan, what happens to a 401(k) and a Roth IRA on the move home, and whether either can go into an RRSP is the question on that side.

What happens on the US side of the same withdrawal?

The IRS taxes it too. As a US resident you report the withdrawal on your Form 1040, though Article XVIII(1) of the treaty exempts from US tax any part of the pension that Canada would have kept out of your taxable income had you still been a resident there.

Article XVIII(1), as replaced by the First Protocol: “Pensions and annuities arising in a Contracting State and paid to a resident of the other Contracting State may be taxed in that other State, but the amount of any such pension that would be excluded from taxable income in the first-mentioned State if the recipient were a resident thereof shall be exempt from taxation in that other State.”

You don’t lose the Canadian withholding. You claim it as a foreign tax credit on Form 1116, and the credit offsets US tax on that same income. The catch is the limitation: the credit in a given year can’t exceed the US tax attributable to the foreign income (IRC 904(a)), so a 25% withholding on a large lump sum doesn’t always come back dollar for dollar.

Timing matters here as much as the rate. A lump sum stacks the entire balance into a single US tax year, and a bigger single-year income means more of it taxed in your top brackets. Periodic withdrawals spread the income, and the credits, across years where they’re easier to absorb.

What does the math look like over ten years?

Say the balance is $300,000 and the fund sits at $300,000 every January 1. Collapsing the RRSP in one shot hands Canada $75,000 of withholding at 25%. Drawing $30,000 a year out of a RRIF, landing exactly on the ceiling, costs $4,500 a year, so $45,000 over ten years on the same $300,000. The gap is $30,000 of withholding, before whatever the Form 1116 credit gives back each year and before state tax. Go over the ceiling in a single payment and that whole payment drops to 25%.

When is the lump sum still the right call?

When the money has a job. If the balance is funding a house down payment or clearing debt that costs more than the tax spread saves, waiting ten years for a better rate can be the wrong trade. On a small balance, the dollar difference between 15% and 25% may be too small to justify years of keeping a Canadian account open.

There’s also the credit position. If your US tax on the income is high enough that the full 25% gets absorbed as a foreign tax credit anyway, the withholding delta matters less than it looks on paper. That’s a per-file calculation worth running before you touch the account.

What should I do next?

If the move hasn’t happened yet, deal with the departure-year mechanics before this decision exists; the RRSP question comes second. If you’re already in the US, map the RRSP-to-RRIF conversion and the ceiling for your balance before anything moves, then get a read on your US bracket and state picture for the drawdown years. The mirror case runs the other way, a Canadian resident drawing a US IRA or 401(k), where the same split decides between 15% and 30%: how to get the 15% treaty rate, not 30%, on a US IRA or 401(k).

Neither is hard, and both are cheaper before the money moves than after.

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.