Selling a Home You Have Owned for Decades? What to Understand About Capital Gains First

For Seniors Weighing a Move, and the Families Thinking It Through With Them

Most of the seniors I work with are not thinking about the tax bill when they first call me. They are worried about the stairs, or the yard that has gotten to be too much, or the empty rooms upstairs that nobody has slept in for years. That is exactly as it should be, because those are the things that tell you it might be time for a change. But there is a financial side to this decision that deserves attention too, and for owners who have been in their homes a long time, planning ahead can head off a substantial tax bill.

You bought your home in north metro Atlanta twenty, thirty, maybe forty years ago. You paid a price that sounds almost impossible now. The home has appreciated more than you ever imagined, and that is genuinely good news. But that same appreciation is what can create a tax question at sale, and it is worth understanding before you list rather than after.

I want to walk you through what capital gains actually means for a home sale, why it matters more for long-time owners than for most people, and what is worth raising with your accountant before you list. The numbers here are the kind of thing to understand in general terms, then take to a CPA who can run them against your own situation. What follows is what tends to catch long-time owners off guard.

What capital gains means when you sell a home

When you sell your home for more than you paid for it, the profit is called a capital gain. The federal government lets you exclude a large chunk of that gain from tax, as long as the home has been your primary residence. As of 2026, a single owner can exclude up to $250,000 of gain, and a married couple filing jointly can exclude up to $500,000. To qualify, you generally need to have owned and lived in the home for at least two of the five years before you sell.

For most people who move every several years, capital gains never becomes an issue. Their homes simply have not had time to appreciate beyond the limit.

The reason it comes up more often today is that those exclusion amounts, $250,000 and $500,000, have not changed since 1997. They were set almost thirty years ago and have stayed flat while home values climbed significantly in recent years. So a long-time owner who has watched a north metro Atlanta home appreciate for decades can genuinely clear the cap on a single house, where a shorter-term owner never would.

Why this matters for long-time Atlanta owners specifically

Think about what has happened to home values across the north metro counties since the 1990s. Someone who bought in Cobb, Cherokee, or Forsyth in that era, raised a family and stayed put, has often seen their home multiply in value several times over. That is exactly the person right-sizing today. And it is this individual who is most likely to have a gain that runs past the exclusion. This is not a rare situation. A National Association of Realtors analysis found that about one in three homeowners already has more equity than the $250,000 exclusion covers for a single filer, a share projected to grow to more than half by 2030.

Surpassing the cap is common enough today that it is worth being clear about what it does and does not mean. It does not mean you owe tax on the whole sale, or even on the whole gain. Only the portion above the exclusion is taxed. For many owners, even a substantial gain falls entirely within the exclusion once the real numbers are worked out, and the piece that remains is smaller than the sale price they had been picturing.

A simple example of how the numbers work

Numbers make this easier to see. Picture a couple who bought their north metro Atlanta home in 1990 for around $120,000. They raised their family there, and today the home might sell for something like $650,000 if well maintained and updated. Their gain is the difference, $530,000.

Because they are married and both still living, they can exclude up to $500,000 of that gain. So the amount potentially subject to tax is $30,000, the piece above the exclusion. Not the $650,000 sale price, and not the full $530,000 gain. Only that top portion.

And that is before accounting for improvements. Over more than thirty years in a home, this couple almost certainly put real money into it, a roof, an HVAC system, a kitchen, a deck. Every dollar of that raises their basis and comes off the gain. If they can document even $30,000 of qualifying improvements across those decades, the taxable portion could come down to little, or even nothing. That is why the records matter so much, and it is exactly the kind of calculation your accountant sharpens once you bring them the real figures.

Your basis is probably higher than you think, so keep your records

That improvement piece is worth exploring further, because it is the part many overlook. Your basis is more than the original purchase price. It also includes the money you have put into the home over the years, from a room addition to permanent landscaping to a replaced HVAC system, and a higher basis means a smaller taxable gain.

Over thirty or forty years in a home, those improvements add up to real money. The trouble is that most people have not kept the receipts, because they had no reason to think they would matter someday. If you are even considering a move in the next few years, start gathering what documentation you can find now. Old invoices, contractor records, permits, cancelled checks, anything that shows what you put into the house. This is homework that can meaningfully change your tax obligation, and it is far easier to do calmly ahead of time than in a scramble after you have decided to sell.

What Georgia adds to the picture

Everything so far is federal. Georgia has its own layer, and for retirees it is a favorable one.

Georgia does not have a separate capital gains tax rate. Any taxable gain is treated as ordinary income and taxed at the state's flat rate, which the Georgia Department of Revenue has set at 4.99% for 2026. On top of that, Georgia offers a retirement income exclusion that is one of the more generous in the region. Taxpayers age 62 to 64 can exclude up to $35,000 of retirement income per person, and at 65 and older that rises to $65,000 per person.

Capital gains generally count as income that can fall under that exclusion. Social Security is handled separately: Georgia does not tax it at all, and because it sits outside the retirement exclusion entirely, it does not impact the $35,000 or $65,000 you can shelter. That full exclusion amount stays available for other income, capital gains included.

What that means in practice is that the state portion of a capital gains question is often smaller than people expect, and for many retirees a meaningful slice of gain can be sheltered at the state level. The exact figures depend entirely on your income and your age, which is a conversation for your accountant, but it is worth knowing that Georgia treats its retirees kindly in this situation.

A word for widowed sellers

There is one situation I want to mention gently, because it can catch people at an already difficult time, and knowing about it ahead helps.

When a married couple sells, they share the $500,000 exclusion. If one spouse has passed away, the surviving spouse generally has up to two years to sell and still claim the full $500,000, after which the exclusion drops to the $250,000 single amount. There is also a separate rule that can raise the basis on the portion of the home that belonged to the spouse who died, which can significantly reduce the taxable gain. These two things pull in different directions, and how they land depends on timing and on how the home was owned.

I raise it not to add worry to a season that already has enough, but because timing matters here in a way it does not for most sellers, and a surviving spouse who knows to ask about it can plan ahead rather than be caught unprepared. If this is your situation, it is worth a specific conversation with both your accountant and an estate attorney, sooner rather than later.

What might change, and what is true today

You may have seen news about capital gains and home sales, because there is active discussion in Congress about updating these rules. Several bills have been introduced, including one bipartisan proposal that would roughly double the exclusion amounts and index them to inflation going forward, so they would not fall behind home values the way the current caps have. As of today, none of that has become law, and the rules that apply today are still the ones described here. It is worth watching, but not worth waiting on, because there is no guarantee any of it passes or when.

What to actually bring to your accountant

If you take one thing from all of this, let it be that capital gains is a question to walk into prepared, not a reason to put off a move you are otherwise ready to make. Here is what is worth putting in front of a CPA:

• What you originally paid for the home, and roughly when.
• Records of the improvements you have made over the years, as complete as you can gather them.
• Your filing status, and if you are widowed, when your spouse passed away.
• Your age, and your other retirement income, so they can factor in Georgia's exclusion.
• A realistic sense of what the home might sell for, which is something I can help you understand before you are committed to anything.

That last point is where my work and your accountant's work meet. I can give you a grounded picture of what your home is likely worth in today's market, which is the starting number the whole tax question depends on. From there, your accountant can tell you what it means for you specifically. Together we can make sure the money side of your decision is clear before you make it.

None of this needs to be rushed. If a move is right for you, understanding the tax picture simply makes you better-informed for the entire process. And if your move is still farther down the road, this is exactly the kind of thing worth planning for early, while you still have time to gather records and time your decision well. If you would like to see where staying or moving fits into the bigger picture, my complete guide to right-sizing in north metro Atlanta walks through the decision-making process.

I am here when you are ready. I hope when the time comes, you will give me the chance to earn your trust.