Capital Gains Tax When Selling a Florida Home

The Short Answer: Most Tampa Bay Sellers Owe Zero Federal Capital Gains Tax

If you've lived in your Florida home as your primary residence for at least two of the past five years, you can exclude up to $250,000 in capital gains from federal taxes — or up to $500,000 if you're married filing jointly. Florida has no state income tax, so there is no state-level capital gains tax to worry about. For the majority of St. Pete and Tampa Bay homeowners selling in 2026, that exclusion covers the entire gain.

That said, the details matter — and getting them wrong can cost you tens of thousands of dollars. Here's exactly how it works.

How Capital Gains Tax Actually Works on a Home Sale

Capital gains are simply the difference between what you sell your home for and your adjusted cost basis in the property.

The basic formula:

Sale Price − Selling Costs − Adjusted Cost Basis = Capital Gain

Your adjusted cost basis is your original purchase price, plus qualifying closing costs you paid at purchase, plus the cost of any capital improvements you made while you owned the home. A new roof, an updated kitchen, a pool addition, impact-rated windows — those all increase your basis and reduce your taxable gain.

Example:

| Item | Amount | |---|---| | Purchase price (2016) | $320,000 | | Qualifying purchase closing costs | $6,500 | | Capital improvements (roof, kitchen) | $45,000 | | Adjusted cost basis | $371,500 | | 2026 sale price | $620,000 | | Selling costs (commission, title, etc.) | $37,200 | | Net capital gain | $211,300 |

In this example, a married couple filing jointly would owe zero federal capital gains tax — their $211,300 gain falls well below the $500,000 married exclusion. A single seller would also owe nothing — the gain is under the $250,000 single exclusion.

The Section 121 Exclusion: The Rule That Protects Most Sellers

Section 121 of the IRS tax code is what most people casually call the "home sale exclusion." To qualify, you must meet two tests:

1. Ownership test: You've owned the home for at least two years out of the five years before the sale date.
2. Use test: You've lived in the home as your primary residence for at least two years out of the same five-year window.

The two years don't have to be continuous — they just need to add up to 24 months within the five-year lookback period.

Exclusion limits:

• Single filer: up to $250,000 excluded
• Married filing jointly: up to $500,000 excluded

You can use this exclusion once every two years. So if you sold a home in late 2024 and claimed the exclusion, you'd need to wait until late 2026 before claiming it again.

For most Tampa Bay sellers — people who bought in Old Northeast, Shore Acres, Snell Isle, or anywhere across Pinellas and Hillsborough — and have lived in their home for years, this exclusion wipes out the entire gain. The St. Pete market has appreciated sharply since 2018-2020; many sellers are sitting on $150,000 to $400,000 in gains. A married couple typically clears all of it tax-free.

When You Exceed the Exclusion — or Don't Qualify for It

Not every seller qualifies for the full exclusion. Here's where things get more complex.

Partial exclusion for hardship situations:

If you don't meet the full two-year requirement, you may still qualify for a partial exclusion if your sale was triggered by:

• A job relocation (your new workplace is at least 50 miles farther from the home than your old job)
• A health condition or medical event
• An "unforeseen circumstance" as defined by IRS regulations

The partial exclusion is prorated based on how much of the two-year period you did occupy the home.

When gains exceed the exclusion:

If your gain is $600,000 and you're married, only the first $500,000 is excluded. The remaining $100,000 is taxable as a long-term capital gain (assuming you've owned the home more than one year), taxed at federal rates of 0%, 15%, or 20% depending on your total taxable income.

In 2026, the long-term capital gains brackets for married filers look roughly like this:

| Taxable Income (Married Filing Jointly) | Federal Long-Term Cap Gains Rate | |---|---| | Up to ~$96,700 | 0% | | $96,701 – $583,750 | 15% | | Over $583,750 | 20% |

(Thresholds are indexed annually; confirm with your CPA for 2026 filing.)

And if your modified adjusted gross income exceeds $250,000 (single) or $300,000 (married), you may owe an additional 3.8% Net Investment Income Tax (NIIT) on the taxable portion.

The Rental and Depreciation Trap Tampa Bay Investors Miss

This is the one that catches people off guard — especially in a market like Tampa Bay where a lot of homeowners have converted their properties to short-term rentals or rented out a portion of their home.

If you claimed depreciation deductions during ownership — whether on a rental property, a home office, or a portion of the home used for business — that depreciation is subject to Section 1250 recapture when you sell. Recaptured depreciation is taxed at up to 25%, even if the rest of your gain qualifies for the Section 121 exclusion.

Example: You owned a duplex near Historic Kenwood for eight years, lived in one unit, and rented the other. You claimed $40,000 in depreciation on the rental side. When you sell, that $40,000 is recaptured and taxed — even if your overall gain falls under the exclusion on the residential portion.

The same logic applies to Airbnb hosts in St. Pete who've been deducting depreciation on their short-term rental rooms. It's not a reason not to sell — but you need to account for it before you set your net proceeds expectations.

What Reduces Your Taxable Gain (That People Often Forget)

Your adjusted cost basis is higher than you think — and that's a good thing for sellers. Most homeowners undercount their capital improvements.

Items that increase your cost basis (and reduce taxable gain):

• New roof installation
• HVAC replacement or upgrade
• Kitchen or bathroom remodel
• Addition of a pool, deck, or dock
• Impact window and door replacements (highly relevant post-Hurricane Helene in Tampa Bay)
• Finished garage or bonus room additions
• Solar panel installation

Items that do NOT increase basis:

• Annual maintenance (painting, landscaping, cleaning)
• Appliance repairs
• Routine plumbing or electrical fixes

I've seen St. Pete sellers leave $30,000 in basis improvements unclaimed simply because they didn't keep receipts. Dig out those contractor invoices before you close — it's worth it.

Selling costs also reduce your gain: real estate commissions, title insurance, documentary stamp taxes, and other closing costs paid at closing all come off the top before you calculate your taxable gain. In Florida, seller-paid closing costs typically run 7–9% of sale price when you include commission. On a $600,000 sale, that's $42,000–$54,000 reducing your gain before taxes are even calculated.

You can see a full breakdown of what sellers typically pay at closing in my closing costs breakdown for Florida sellers.

Timing Strategies Worth Discussing With Your CPA

If you're close to the two-year mark: Waiting a few extra months to hit the full ownership and use period can save you tens of thousands. I've had sellers in Old Northeast who moved into a rental for a year and kept their primary home just long enough to clear the Section 121 threshold.

If you're a high earner: Consider whether your overall taxable income in the sale year can be managed — through retirement contributions, charitable deductions, or other strategies — to keep your rate at 15% rather than 20%.

1031 Exchange for investment properties: If the home you're selling is an investment property rather than a primary residence, a 1031 exchange lets you defer capital gains taxes by rolling proceeds into a like-kind replacement property. I covered this in detail in the 1031 exchange Tampa Bay strategy guide.

Installment sale: In some cases, carrying a seller note and receiving proceeds over multiple years can spread the taxable gain across tax years and potentially keep you in lower brackets. This is a niche strategy — worth raising with a CPA if your gain is substantial.

Florida's Tax Advantage: No State Capital Gains Tax

One reason so many people relocating from California, New York, and Illinois sell those properties and buy in Tampa Bay is exactly this: Florida has zero state income tax and zero state capital gains tax.

California's top capital gains rate is 13.3%. New York's is 10.9%. A California seller moving to St. Pete and buying here rather than selling from California can save six figures on a large gain.

If you're one of the thousands of buyers arriving from high-tax states — and you've owned your former home long enough to qualify for the federal exclusion — Florida's tax treatment is about as favorable as it gets for a home sale.

What I'd Recommend Before Listing

Capital gains tax is one of the few places where I'll always tell sellers: talk to a CPA before you list, not after. By the time you're at the closing table, your options are mostly gone. A quick conversation before you list can surface:

• Whether you're better off waiting a few months to hit the two-year mark
• What capital improvements to document before closing
• Whether you have depreciation recapture exposure
• Whether your income in the sale year can be structured to minimize your rate

I'm not a tax professional, and this page doesn't constitute tax advice — but as your agent, I'll flag the questions to ask and make sure you're not getting surprised at the closing table.

If you want to know what your home is actually worth in today's Pinellas, Pasco, or Hillsborough market — so you can do that math with real numbers — I'll pull 3 MLS comps specific to your address and text them to you within 24 hours. Free, no pressure, no obligation. Request your free home valuation here.