Moving Back to Canada With a Florida Home: Sell Before the Move or After? The Two Exemptions and the Arrival Step-Up Decide

The Florida house is the last US asset most returnees deal with, and the sale-before-or-after question has a cleaner answer than the business-sale version, because the exemptions on both sides are generous and the mechanics are the only variable. Selling before the move — while a US resident and before Canadian residency begins: the returnee is a US resident (or citizen) selling their principal residence — the section 121 exclusion applies (US$250,000 single, US$500,000 joint of gain excluded, with the two-of-five ownership and use tests met by anyone who lived there), gain above the exclusion is taxed at long-term rates (plus the net investment income tax where MAGI is over the threshold — which a large gain year often produces), no FIRPTA withholding applies (FIRPTA is a nonresident regime, and the seller is a resident at closing), Florida has no state income tax on the gain, and Canada taxes nothing (the sale precedes Canadian residency — a non-resident's US real property sale is outside Canada's reach); the proceeds arrive in Canada as cash with no continuing US filing for the property. Selling after the move — as a Canadian resident: Canada deems the house acquired at fair market value on the residency date (the arrival step-up — the newcomer rules), so the Canadian gain is only the post-return appreciation (typically small on a sale within a year or two), taxed at Canada's capital gains inclusion — and, if the house was the returnee's principal residence for Canadian purposes in any year (it wasn't, since they were non-resident — the principal residence exemption designation requires Canadian residency for the years designated, and the returnee's pre-return years don't qualify), no Canadian exemption applies to the post-return gain; the US side: the returnee who remains a US citizen files a 1040 as always and claims section 121 if the tests are still met (the two-of-five window runs from moving out — a sale within roughly three years of leaving the house keeps the exclusion alive), with the gain above the exclusion taxed and the Canadian tax on the post-return slice creditable; the returnee who is not a US citizen is now a nonresident alien — the sale is a disposition of a US real property interest by a foreign person, FIRPTA withholding of 15% of the gross price applies at closing (reducible by a withholding certificate on Form 8288-B where the actual tax is lower), the gain is reported on a 1040-NR with section 121 still available to a nonresident alien who meets the ownership and use tests (the exclusion is not limited to residents — a point frequently missed), and the balance taxed at long-term rates. The comparison, in the ordinary case: selling before the move is cleaner — the exclusion applies, no FIRPTA, no 1040-NR, no Canadian filing for the property, and the proceeds are in hand for the move; selling after the move is not materially worse on tax (the exclusion usually still applies within the window; Canada's arrival step-up leaves little Canadian gain; FIRPTA withholding is a cash-flow event recovered on the return) but adds mechanics — a FIRPTA closing, a 1040-NR, a Canadian Schedule 3 entry, and a T1135 line for the house during the year it was held as a non-personal-use asset if rented — and it carries the risk that the sale slips past the section 121 window. Where after-the-move wins: the house that hasn't sold by the move date in a slow market (the returnee moves and sells when the market allows, accepting the mechanics); the returnee with a large gain above the exclusion who would face the NIIT in a high-income final US year and whose post-move sale, as a nonresident alien, is outside the NIIT (the NIIT applies to US citizens and residents, not to nonresident aliens — a genuine saving on large gains for the non-citizen returnee, offset by the loss of any state-of-residence considerations, which in Florida is nothing); and the returnee whose spouse remains a US resident for a period (the section 121 joint exclusion and the sale timing coordinated with the spouse's residency). Where keeping the house changes everything: the returnee who keeps the Florida house as a rental becomes a non-resident US landlord (the rental guides — the net election, the W-8ECI, US depreciation, a 1040-NR annually) and a Canadian resident with foreign rental income (T776 under Canadian rules, the T1135, the foreign tax credit), with the arrival step-up setting the Canadian cost base for the eventual sale; the section 121 exclusion ages out three years after moving out (the two-of-five window) and is lost once rental years dominate — so the keep-as-rental decision is also a decision to forgo the exclusion on the pre-move gain unless the sale happens inside the window; and the eventual sale runs FIRPTA, depreciation recapture (US), and the Canadian gain from arrival basis — the full non-resident landlord exit. Florida-specific items: the homestead exemption and Save Our Homes cap (the homestead guide) are lost on the move — the returnee who keeps the house is a non-homestead owner at full millage from the next January 1, a carrying-cost jump that reshapes the keep decision; and Florida's documentary stamp tax on the deed applies to the sale regardless of the seller's residency. The decision sequence: fix the residency date; project the sale date the market allows; if the sale can precede residency, sell before (the clean case); if not, confirm section 121's window will still be open at the projected sale, price the FIRPTA mechanics and the withholding certificate, document the arrival-date value for Canadian basis, and decide the interim use (vacant, personal, or rental — with the rental route's landlord apparatus and its effect on the exclusion understood); and, for the large-gain non-citizen, run the NIIT comparison, which occasionally makes the after-move sale the deliberate choice.

Key takeaways

• Before the move is the clean case: section 121 (US$250,000/US$500,000) as a US resident, no FIRPTA, no 1040-NR, no Canadian tax, cash in hand — the default when the market allows.
• After the move is rarely worse on tax, but adds mechanics: Canada's arrival step-up leaves only post-return gain (no Canadian exemption on it); section 121 still applies to a nonresident alien within the two-of-five window; FIRPTA withholding (15%, reducible by certificate) and a 1040-NR arrive; a T1135 line if rented.
• The window is the constraint: section 121 ages out roughly three years after moving out — a slow sale or a rental interlude can lose it.
• After the move can win for large gains: the non-citizen returnee's post-move sale is outside the NIIT (nonresident aliens aren't subject to it) — a real saving on gains above the exclusion, run as a comparison.
• Keeping it as a rental changes the file: non-resident landlord apparatus (net election, W-8ECI, 1040-NR, T776, T1135), the exclusion forfeited once rental years dominate, full non-homestead property tax, and the full landlord exit on eventual sale.
• Document the arrival-date value: Canada's cost base for the house from the residency date — the appraisal on that day is the eventual Canadian gain's foundation.

The Florida-home decision

Residency date fixed. Sale date projected against the market. Section 121 window computed from the move-out date. Path A (sell before): exclusion, long-term rates plus NIIT on the excess, no FIRPTA, no Canadian tax. Path B (sell after, non-citizen): exclusion if in window, long-term rates on the excess, no NIIT, FIRPTA withholding with a certificate, 1040-NR, Canadian gain from arrival basis. Path B (sell after, US citizen): as A on the US side with Canadian tax on the post-return slice credited. Path C (keep as rental): the landlord apparatus, the exclusion's expiry date, non-homestead property tax, and the exit computation. Choose on the numbers and the market, and document the arrival value regardless.

Worked example

A Canadian couple returns to Ottawa after eleven years in Tampa, owning a house bought for US$380,000 and now worth US$820,000 — a US$440,000 gain, both non-citizens. Path A: listed in the spring, sold in June before their July residency date — section 121 excludes US$500,000 (joint), no US tax at all on the gain, no FIRPTA (residents at closing), no Canadian tax (pre-residency), proceeds wired north. Clean. The version they nearly lived: the house didn't sell by July; they moved anyway. Path B: sold in November as Canadian residents and nonresident aliens — section 121 still available (well within the two-of-five window), the US$440,000 gain fully excluded on their 1040-NR, no NIIT exposure anyway; FIRPTA withholding of 15% of the gross price (US$123,000) at closing, reduced to near zero by a Form 8288-B withholding certificate applied for before closing (the certificate process took six weeks — filed the day the sale agreement was signed); Canadian side: arrival value US$820,000 in July, sale at US$820,000 in November — no Canadian gain, a Schedule 3 entry showing zero and the arrival appraisal in the file. Same result, more paperwork. Their neighbor's Path C: kept the Sarasota house as a rental "for a few years" — non-homestead property tax from the next January (a 60% jump), the net election and 1040-NRs annually, the T776 and T1135 in Canada, and a sale in year four that missed the section 121 window by eight months: US tax on the full pre-move gain that the exclusion would have sheltered, plus recapture, plus FIRPTA mechanics — the rental income over four years did not cover the exclusion lost.

Official sources

The IRS explains: "If you have a capital gain from the sale of your main home, you may qualify to exclude up to $250,000 of that gain from your income, or up to $500,000 of that gain if you file a joint return with your spouse," provided the ownership and use tests for two of the last five years are met. — Internal Revenue Service, Topic No. 701, Sale of Your Home, https://www.irs.gov/taxtopics/tc701

"The disposition of a U.S. real property interest by a foreign person (the transferor) is subject to the Foreign Investment in Real Property Tax Act of 1980 (FIRPTA) income tax withholding." — Internal Revenue Service, FIRPTA Withholding, https://www.irs.gov/individuals/international-taxpayers/firpta-withholding

Practitioner note

The Florida-home timing is the returnee's cleanest decision when the market cooperates — sell before the residency date and every exemption lines up — and a manageable one when it doesn't, because section 121 survives nonresidency inside its window and Canada's arrival step-up leaves nothing to tax. The case we argue against is the rental interlude: it forfeits the exclusion once the window closes, adds the full landlord apparatus, and pays non-homestead property tax for the privilege, which the rental income almost never covers.

See also: For the buyer's section 116 holdback when the seller is a non-resident, see the buyer's section 116 holdback when the seller is a non-resident; and browse every cross-border tax topic guide, organized by situation.

Next step

Fairlight prepares the Florida-home exit plan — residency-date and section 121 window analysis, the sell-before-versus-after comparison including FIRPTA certificate mechanics and the NIIT differential for non-citizens, arrival-date valuation for Canadian basis, and the keep-as-rental evaluation with its exclusion and property-tax consequences. See cross-border pricing or book a call.