Selling a Business After Moving to Florida
Stock versus asset sales, pass-through sourcing, installment payments, and timing the move
Reviewed by the Fairlight Accounting cross-border tax team — U.S. & Canadian Tax Desks
Whether your former state can tax your business sale after you move to Florida depends on what's sold. Gain on stock or a business interest is generally intangible income that follows your domicile — Florida — after a completed move. But a pass-through's asset sale is sourced where the business operates, and states scrutinize moves made just before a sale.
On this page
Sourcing by structure (varies by state)
| Sale | Typical sourcing for a nonresident |
|---|---|
| C corporation stock | Domicile of the seller — not the former state after a completed move |
| S corporation stock | Generally intangible — sourced to the seller's domicile; but if a section 338(h)(10) election is made, New York treats the deemed asset-sale gain as New York-source, apportioned like the corporation's income |
| Partnership or LLC interest | Varies — Massachusetts taxes a nonresident's gain on an interest in a business with Massachusetts income, apportioned by the entity's Massachusetts percentage; New York sources it when the sale is treated as an asset sale under section 1060 or the entity's assets are at least half New York real property |
| Pass-through asset sale (including a section 338(h)(10) or 336(e) election) | Apportioned to the states where the business operates — the former state taxes its share |
| Installment payments | Some states tax installment gain as source income or accrue it to the resident period |
| Non-compete payments | Varies by state — some source them to where the restricted services would have been performed, others to the seller's domicile |
Timing
Complete the domicile change well before signing — move your home, time, business management, and family first, and document it. A letter of intent signed while still a resident, or a move made weeks before closing, draws audits; a former state may argue the sale was effectively arranged — and the gain earned — while you were still a resident.
The federal side
Federal tax is the same regardless of state: long-term capital gain rates (up to 20 percent) plus the 3.8 percent net investment income tax. Gain on C corporation stock is always net investment income; gain on an S corporation or partnership interest, or a pass-through's asset sale, is exempt from that tax to the extent it comes from a trade or business in which the owner materially participated (section 1411(c)). Section 1202 can exclude gain on qualified small business stock: for stock issued after July 4, 2025, the 2025 federal tax law (P.L. 119-21) allows 50 percent after three years, 75 percent after four, and 100 percent after five, up to the greater of US$15 million (2026) or 10 times basis per issuer, for corporations with no more than US$75 million in gross assets (stock issued from September 28, 2010 through July 4, 2025: 100 percent after five years, US$10 million, US$50 million).
Frequently asked questions
If I move to Florida, can I sell my business without state tax?
Often, for a stock sale after a completed move — but asset sales of pass-throughs are taxed where the business operates.
How long before a sale should I move?
Well before negotiations — moves made shortly before a sale are heavily scrutinized.
Are installment payments taxable by my old state?
They can be, depending on the state's sourcing and accrual rules.
Does the structure of the sale matter?
Yes — stock versus asset sales are sourced very differently.
Official sources
The New York State Department of Taxation and Finance's audit guidelines state: “An analysis of the five primary factors (Home, Active Business Involvement, Time, Items Near & Dear and Family Connections) should generally provide a basis for New York domicile before documentation concerning the "other" factors is requested from the taxpayer.” — New York State Department of Taxation and Finance, Nonresident Audit Guidelines (December 2021), https://www.tax.ny.gov/pdf/2021/misc/nonresident-audit-guidelines-2021.pdf
The California Franchise Tax Board explains: “Although you may have connections with another state, if your stay in California is for other than a temporary or transitory purpose, you are a California resident. As a resident, your income from all sources is taxable by California.” — California Franchise Tax Board, FTB Publication 1031, 2025 Guidelines for Determining Resident Status, https://www.ftb.ca.gov/forms/2025/2025-1031-publication.pdf
Next step
Fairlight Accounting is a cross-border accounting and tax practice with a U.S. Tax Desk and a Canadian Tax Desk. Our U.S. Tax Desk handles pre-sale domicile planning, state sourcing analysis for business sales, and part-year and nonresident returns in the sale year. See pricing or book a call.
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U.S. and Canadian filings prepared together by our U.S. and Canadian Tax Desks.
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