How Much Capital Gains Tax Will I Owe When I Sell My Kennesaw Home in 2026?
How Much Capital Gains Tax Will I Owe When I Sell My Kennesaw Home in 2026?
Most homeowners who've lived in their Kennesaw home for at least 2 of the last 5 years can exclude $250,000 of gain (single filers) or $500,000 (married filing jointly) from tax entirely under IRS Section 121. Georgia taxes any gain above that exclusion as regular income at a flat 5.39% rate in 2026, on top of federal capital gains tax. With West Cobb home values up roughly 8% year-over-year, more longtime owners are bumping into taxable territory than in recent years — especially single filers who've owned for a decade or more. This is general information, not personalized tax advice, so the exact number depends on your basis, filing status, and ownership history.
TL;DR
- The Section 121 exclusion covers $250,000 of gain (single) or $500,000 (married filing jointly) if you've lived in the home 2 of the last 5 years.
- Georgia taxes gain above your exclusion as regular income at a flat 5.39% rate in 2026, on top of federal capital gains tax.
- West Cobb values are up about 8% year-over-year, which is pushing more longtime owners past the $250,000 single-filer threshold.
- Combined federal and Georgia tax on gain above your exclusion typically runs close to 20% for most long-term sellers.
- Your basis includes your purchase price plus qualifying improvements — tracking that history can meaningfully lower your taxable gain.
Cobb County Home Sellers: How the Capital Gains Exclusion Actually Works
If you're selling in Kennesaw or anywhere else in Cobb County, the first question is whether you even owe anything. For most sellers, the answer is no — as long as you clear the Section 121 tests.
To qualify for the exclusion, you generally need to have:
- Owned the home for at least 2 of the last 5 years
- Lived in it as your primary residence for at least 2 of the last 5 years (the two periods don't need to overlap or be consecutive)
- Not used the exclusion on another home sale within the last 2 years
If you qualify, you exclude up to $250,000 of gain as a single filer or $500,000 if you're married filing jointly. Gain is calculated as your sale price minus your adjusted basis — your original purchase price plus qualifying capital improvements (a new roof, an addition, a major system replacement), minus any depreciation you've claimed if part of the home was ever a rental.
If your total gain falls under your exclusion amount, you typically owe nothing on the sale, federally or in Georgia. Your specific number depends on your purchase price, what you've put into the home, and how long you've owned and lived in it — that's where reviewing your actual basis with a CPA before you list matters more than a rule of thumb.
Georgia's Capital Gains Tax Rate: What Sellers Pay After the Exclusion
Georgia doesn't have a separate capital gains tax. Instead, any gain that isn't covered by your Section 121 exclusion gets taxed as ordinary income at Georgia's flat rate — 5.39% in 2026, a rate that's scheduled to step down gradually under state law in future years.
On top of that, you owe federal long-term capital gains tax, which runs 0%, 15%, or 20% depending on your total taxable income. Most Cobb County sellers with a taxable gain land in the 15% federal bracket, which means a combined federal-plus-Georgia rate close to 20.39% on the gain above your exclusion.
Georgia-Specific Costs to Keep Separate From Capital Gains Tax
It's worth distinguishing capital gains tax from the other Georgia-specific costs you'll see at closing, including the transfer tax and other closing costs sellers pay and your prorated share of Cobb County property taxes for the year. None of those reduce your capital gains liability directly, though selling costs and commissions do reduce your net sale price when calculating gain.
Kennesaw, Marietta, and Acworth: Why Rising Values Are Changing the Math
A few years ago, capital gains tax rarely came up in a Cobb County listing appointment. That's changing.
- Kennesaw — median sale prices have been running near $360,000. Owners who bought a decade or more ago, especially before the run-up in values, are increasingly seeing gains that approach or exceed the $250,000 single-filer exclusion.
- Marietta — a broader mix of price points and longer average ownership tenures in some in-town neighborhoods means gain calculations vary more from one seller to the next.
- Acworth — lake-adjacent and long-held properties have seen some of the steeper appreciation in the county, which is exactly where this conversation matters most.
Across West Cobb generally, values are up roughly 8% year-over-year. If you've owned your home for 10, 15, or 20+ years, it's worth running your actual numbers well before you list — not after you've already accepted an offer. Your net proceeds calculation should account for this alongside your other selling costs; we walked through the full breakdown in net proceeds when selling a home in Kennesaw.
How to Reduce Your Taxable Gain Before You Sell
Document your capital improvements. A new roof, HVAC replacement, kitchen remodel, or addition all add to your basis and reduce your taxable gain — but only if you have records. Pull together receipts and permits before you list, not after.
Confirm your 2-of-5-year eligibility early. If you've rented the home out for a stretch, or you're not sure your primary-residence years line up, verify this before you're under contract, not during due diligence.
Time the sale around your filing status. If you recently changed marital status, moved out temporarily, or are weighing a sale near a tax year boundary, the timing can materially change what you owe.
Loop in a CPA before you list. This is general information, not personalized tax advice — every seller's basis, timeline, and filing situation is different, and the only way to know your real number is to run it with a tax professional who has your actual numbers.
Frequently Asked Questions
Do I have to pay capital gains tax when I sell my house in Georgia?
Most sellers don't, as long as they've lived in the home 2 of the last 5 years and their gain falls under the $250,000 (single) or $500,000 (married) Section 121 exclusion. Gain above that threshold is taxed as regular income in Georgia at 5.39% in 2026, plus federal capital gains tax.
What counts toward my home's basis?
Your basis starts with your original purchase price and adds qualifying capital improvements — a new roof, a major renovation, an addition — while subtracting any depreciation claimed if the home was ever a rental. A higher basis means a lower taxable gain.
How does Georgia tax capital gains differently from other states?
Georgia doesn't have a standalone capital gains tax. It taxes gains as ordinary income at a flat 5.39% rate in 2026. If your gain is fully covered by the federal Section 121 exclusion, there's typically little to no state tax impact either. For a wider look at how Georgia's tax rules affect sellers, see our guide to Cobb County property tax assessments.
Does rising home value in Acworth or Kennesaw mean I'll owe more in taxes?
It can, particularly if you've owned the home a long time and are filing as a single taxpayer. Appreciation in Acworth and other West Cobb communities has been strong enough that some longtime owners are approaching their exclusion limit for the first time.
Where can I get help figuring out my actual capital gains number before I sell?
This post covers the general rules, but your real number depends on your basis, filing status, and ownership timeline. Explore Kennesaw and the surrounding West Cobb communities at masoudpour.com and reach out — I can help you pull the pieces together alongside your CPA before you list.
Ready to Find Out What You'd Actually Owe?
Most Cobb County sellers owe nothing in capital gains tax, but rising home values mean it's worth checking your numbers before you list, not after you've accepted an offer. Schedule a consultation with me, Robert Masoudpour, and I'll help you put together the full picture for your Kennesaw home sale. Schedule a 15-minute consultation
