Short answer: If you are moving to Miami and you keep the northern house, becoming a Florida resident does not move the house — or its tax. The literal question, selling your northern home after becoming a Florida resident: capital gains timing, is decided by two clocks. Clock one is federal: you can exclude up to US$250,000 of gain if you file single, or US$500,000 if you file jointly, only if you owned and lived in that home for 24 months inside the five years before the sale — which gives you roughly three years after you move out to sell before the exclusion drops to US$0. Clock two is the house itself: whatever gain is left taxable is taxed by the state where the house sits, at that state’s rates, because real property gain is source income there — and Florida, whose tax is US$0, gives you no credit against it. On a US$500,000 gain, waiting past that window can turn a federal bill of US$0 into US$75,000 to US$119,000, plus the northern state’s share.
Updated: October 24, 2026.
¿Prefieres leer en español? Lee esta guía en español
Moving to Miami: the federal clock — 24 months inside five years
The home-sale exclusion lives in Section 121 of the Internal Revenue Code. The Internal Revenue Service explains it in Topic Number 701 and Publication 523, Selling Your Home.
Two tests, both measured in the five years that end on your closing date. The ownership test: you owned the home for at least 24 months. The use test: you lived in it as your main home for at least 24 months.
The 24 months do not have to be continuous, and the two tests can be met in different periods. For a joint return at the full US$500,000, either spouse can meet ownership — but both spouses must meet the use test.
And you cannot have used the exclusion on another home sale in the two years before this one.
| Your sale | Federal exclusion | Taxable gain on a US$500,000 gain |
|---|---|---|
| Married filing jointly, both lived there 2 of the last 5 years, sold within about 3 years of moving out | US$500,000 | US$0 |
| Single, same timing | US$250,000 | US$250,000 |
| Either filing status, sold more than 3 years after moving out, no exception | US$0 | US$500,000 |
That third row is the whole timing story. The five-year window ends on the sale date and looks backwards. Every month you spend in Miami, one of your old months of living in the northern house falls out of the window.
Once fewer than 24 of those months remain inside it, there is no partial credit for good intentions. Absent a specific exception, the exclusion is gone in full.
This is why I treat the northern house as a dated asset from the first week of a moving to Florida from New York plan — not as a problem for later. Later has a price, and the cost of living in Miami vs New York comparison never includes it.
The rates on whatever gain is left
A home held for more than a year produces a long-term gain. For 2026, the Internal Revenue Service rates in Revenue Procedure 2025-32 are 0%, 15% and 20%, set by your taxable income including the gain itself.
The 0% rate runs to US$49,450 of taxable income for a single filer and US$98,900 filing jointly. The 15% rate runs to US$545,500 and US$613,700. Above that, 20%.
On top of that, the 3.8% Net Investment Income Tax can apply when your modified adjusted gross income passes US$200,000 single or US$250,000 jointly. Those thresholds are written into the statute and do not rise with inflation.
So the single seller in the table above, with US$250,000 left taxable, pays about US$37,500 at a flat 15% illustration — before the bracket worksheet and any Net Investment Income Tax are run on the real return.
And the couple who waited past the window, with the full US$500,000 taxable, faces US$75,000 at 15% and up to US$119,000 at 20% plus the 3.8% surtax. Same house, same gain. The only difference is the closing date.
What most people don’t know
1. Florida residency does not shelter this sale. The house never moved.
Florida has no personal income tax, so Florida taxes your gain at US$0. That sounds like a win until you see the other side: a state with a tax of zero gives you no credit for tax paid to another state.
Real property is the clearest source income there is. Under New York Tax Law Section 631, a nonresident’s New York-source income includes the gain from real property located in New York. New Jersey, Connecticut, California, Illinois and Massachusetts work the same way for a house inside their borders.
The taxable portion — the gain that remains after the federal exclusion, following the federal treatment — is taxed by the house’s state at its ordinary rates. New York gives capital gains no preferential rate at all: the gain is taxed like wages, at state rates that run from 4% to 10.9%.
Changing your domicile is still worth doing properly — it is what ends the tax on your salary, your portfolio and your future. It is covered in the 183-day rule and how to prove Florida domicile. It simply does not reach back and move a house.
2. New York and New Jersey collect an estimate at the closing table itself.
These are prepayments, not extra taxes — but they are real cash, due before the deed can be recorded, and sellers who have never heard of them meet them in the closing disclosure.
In New York, a nonresident seller files Form IT-2663 and pays estimated tax on the federally reportable gain at the highest rate in the Tax Law for that year — the form has used 10.90%. A cooperative unit uses Form IT-2664 instead.
In New Jersey, Form GIT/REP-1 sets the payment at the greater of the reportable gain multiplied by 10.75%, or 2% of the sale price. On a US$900,000 New Jersey house with US$250,000 of federally taxable gain, that is the greater of US$26,875 and US$18,000 — so US$26,875 is collected at closing.
Both payments are reconciled on the nonresident return for the year of sale — Form IT-203 in New York, Form NJ-1040NR in New Jersey — and any excess comes back as a refund. Budget the closing funds for the prepayment, not just for the final tax.
3. Renting the northern house while you wait is the most expensive version of waiting.
The rental months after you move out do not, by themselves, shrink the exclusion: time after your last day of living in the home, inside the five-year window, is not counted as nonqualified use.
What renting does add is depreciation. The Internal Revenue Service requires you to account for depreciation that was taken or was allowable, and Section 121 says that slice of gain can never be excluded.
It comes back as unrecaptured Section 1250 gain, taxed at a maximum federal rate of 25% — even on a sale where every other dollar of gain is excluded. The rent itself is also source income in the house’s state, year by year.
So the landlord plan has three costs running at once: rent taxed up north, depreciation that will be recaptured at up to 25%, and a federal exclusion window that keeps closing whether the tenant pays on time or not.
4. Your receipts are worth a rate, not just a deduction.
Gain is the amount realized minus your adjusted basis. Capital improvements — a roof, an addition, new systems — add to basis. Routine repairs and painting do not.
Every documented US$10,000 of improvements cuts the taxable gain by US$10,000. At 15% to 23.8% federal, that is US$1,500 to US$2,380 saved per US$10,000 documented, plus the state layer.
The time to assemble that file is before you list, while the contractor invoices still exist — the basis worksheet in Publication 523 is the checklist. I put this file together in the same first season as the first-30-days domicile checklist, because both files are about dates and paper.
5. A January closing can help your cash flow. It never helps your window.
Closing in January instead of December moves the gain into the next tax year. That can change how the gain stacks against that year’s other income, which bracket it lands in, and whether the Net Investment Income Tax reaches it.
What it does not change: the house’s state still taxes the taxable portion, and the five-year lookback still ends on the new, later closing date. A January closing inside the window can be smart. A closing delayed past the window for a one-year deferral is trading up to US$500,000 of exclusion for a few months of float.
There is one genuine safety valve. If a sale falls short of the tests mainly because of a change in workplace location, a health reason, or an unforeseen event — a death, a divorce, a job loss, a home destroyed or condemned — Publication 523 allows a prorated exclusion: the shorter of your ownership or use time, divided by 24 months, multiplied by the full limit. Eighteen qualifying months as a single filer is an exclusion ceiling of US$187,500, not zero.
How this fits the rest of your move
The northern sale sits inside the same first-year tax plan as everything else. The savings case for the move itself is in moving to Miami from New York: the real tax savings and in cost of living: Miami vs. New York, real numbers.
The audit risk of how you left is in the New York exit audit. A documented, timely sale of the northern house is consistent with a clean exit — it is one of the facts that says the move was real.
And on the Florida side, the house you buy here starts its own clocks: the January 1 and March 1 dates in the Florida homestead exemption in year one. Sell up north inside the window, buy down here with the calendar in mind, and the two systems stop working against each other.
My sequence for sellers: assemble the basis file first, fix the deadline — three years from the day you moved out, minus a safety margin — then choose the closing month, model the state prepayment into the closing funds, and file the nonresident return the following spring to reconcile it.
Frequently asked questions
If I am a Florida resident when I sell, do I owe New York tax on my New York house?
On the taxable portion, yes. The gain from real property in New York is New York-source income for a nonresident under Tax Law Section 631, taxed at ordinary New York rates with no preferential capital gains rate. The part of the gain the federal exclusion removes is not the part being taxed — the state follows the federal treatment of the gain — and Florida gives no credit, because Florida tax is zero. A nonresident seller also prepays an estimate at closing on Form IT-2663 and reconciles it on Form IT-203.
How long do I have to sell after moving to Miami and keep the exclusion?
Roughly three years from the day you move out. You need 24 months of ownership and 24 months of use inside the five years ending on the sale date, so your months of living there stay countable for about three more years. After that, without a qualifying exception, the exclusion is US$0 and the entire gain is taxable — on a US$500,000 gain, a federal difference of US$75,000 to US$119,000.
What if I rent the house out for two years and then sell?
You can still qualify if you sell inside the window: rental time after your last day of living there is not nonqualified use. But the depreciation from those rental years can never be excluded — it is recaptured at a maximum 25% federal rate — and the rent is taxed each year by the state where the house is. Run the rent against those two costs and against the shrinking window, not against zero.
Is the New Jersey payment at closing an extra exit tax?
No. It is an estimated tax payment under Form GIT/REP-1: the greater of the reportable gain times 10.75% or 2% of the sale price, collected before the deed is recorded and reconciled on your New Jersey nonresident return, with any excess refunded. It feels like an exit tax because it is collected as you leave. This page is general information, not tax advice: model your own sale — basis, dates, filing status and state — with a tax professional before you set a closing date.
Yara Coker — SETTLE, relocation services in Miami.
Want help with your move to Miami?
Tell me which state the house is in, when you moved out, and when you hope to sell. I will help you put the deadline, the Miami purchase and the closing sequence on one calendar — and flag the moment a tax professional needs to run your exact numbers before the window moves. First call is free and there is no obligation.
Sources: Internal Revenue Code Section 121 (exclusion of gain from sale of a principal residence: US$250,000 / US$500,000; ownership and use tests of 24 months in the 5 years before sale; both spouses must meet the use test for the joint US$500,000; no exclusion if another was used in the prior 2 years; Section 121(b)(5) nonqualified use, with the exception for time after the last use as a main home inside the 5-year period; Section 121(d)(6): depreciation after May 6, 1997 is not excludable). Internal Revenue Service: Topic Number 701, Sale of Your Home; Publication 523, Selling Your Home (2025) — eligibility, basis worksheet including capital improvements, prorated exclusion for a change in workplace location, health reasons or unforeseen circumstances (shorter of ownership/use divided by 24 months times the limit; 18 months single = US$187,500); Revenue Procedure 2025-32 — 2026 long-term capital gains thresholds (0% to US$49,450 single / US$98,900 joint; 15% to US$545,500 / US$613,700; 20% above). Internal Revenue Code Section 1411 and Internal Revenue Service Topic Number 559: Net Investment Income Tax of 3.8% above modified adjusted gross income of US$200,000 single / US$250,000 joint, thresholds not adjusted for inflation; unrecaptured Section 1250 gain taxed at a maximum 25%. New York Tax Law Section 631(a)(1) (nonresident source income includes gain from real property in New York) and Section 601 rates (capital gains taxed as ordinary income, 4% to 10.9%); New York Department of Taxation and Finance Form IT-2663 (nonresident real property estimated tax at the highest Tax Law rate — 10.90% on the form — on the federally reportable gain; cooperatives on Form IT-2664; reconciliation on Form IT-203). New Jersey Division of Taxation, Technical Bulletin TB-57R (revised June 15, 2026) and Forms GIT/REP-1 and GIT/REP-3 under N.J.S.A. 54A:8-8 to 8-10: nonresident estimated payment is the greater of the reportable gain times the top rate of 10.75% or 2% of the consideration, collected before recording and reconciled on Form NJ-1040NR. Florida: no personal income tax and no state credit mechanism for taxes paid to another state on this sale. Worked examples are SETTLE illustrations on stated figures (basis US$400,000, sale US$900,000, gain US$500,000; flat 15% illustration for the single seller) — actual tax depends on the full return, bracket stacking and each state’s nonresident computation. General information only, not tax advice.
Versión en español: Vivir en Miami: vender tu casa del norte ya siendo residente de Florida — los tiempos del impuesto a la ganancia
