Updated October 2026. A selling house calculator usually shows one number. This guide shows the two you need: the cash you walk away with, and your profit as the IRS counts it, with a worked example on a $417,500 sale.
To estimate your profit on a home sale, run two numbers. Cash at closing is the sale price minus selling costs and your mortgage payoff. Taxable profit is the sale price minus selling costs minus your adjusted basis. On a $417,500 sale, the September 2026 US median (NAR), the example below nets about $190,040 in cash and a $60,040 gain, which most owners can exclude from tax.
Jump to: 🪜 Two numbers · 💲 Worked example · 🏠 Your basis · 📍 Tax rules · 🤝 Scenarios · ❓ FAQ
Key takeaways
- The IRS formula is selling price minus selling expenses (the “amount realized”) minus adjusted basis equals gain (Publication 523).
- Up to $250,000 of gain is usually excluded, or $500,000 for married couples filing jointly, if you owned and lived in the home 2 of the last 5 years.
- Your mortgage payoff lowers your cash at closing but doesn’t change your taxable gain.
- Improvements such as a new roof, a deck or an added bathroom raise your basis; routine repairs don’t.
Most calculators, including our own property value calculator, start from price. That’s the right first step. But “profit” means different things to you, your lender and the IRS. Keeping the numbers apart stops the classic mistake of thinking a big payoff means a small gain, or the other way around.
What’s the difference between net proceeds and profit?
Net proceeds are the cash wired to you at closing. Start with the price, subtract every selling cost on the settlement statement, subtract your mortgage payoff, and add or subtract tax prorations.
Profit, or gain, is a tax number. The IRS takes the price, subtracts selling expenses to get the amount realized, then subtracts your adjusted basis. Your loan balance isn’t part of it. Someone who paid cash and someone who still owes $300,000 can have the same gain on the same house.
| Step | Net proceeds (cash) | Gain (tax) |
|---|---|---|
| Start with | Sale price | Sale price |
| Subtract | Selling costs | Selling expenses |
| Then subtract | Mortgage payoff and liens | Adjusted basis |
| Adjust for | Tax and HOA prorations | Nothing else here |
| Result | Cash wired to you | Gain before any exclusion |
What does a worked example look like on a $417,500 sale?
NAR reported a median existing-home price of $417,500 for September 2026, up 1.3% from a year earlier. Let’s use it with made-up but realistic inputs: bought for $300,000 in 2016, $40,000 of improvements since, $210,000 left on the mortgage, and a sale in Florida, where the deed tax is $0.70 per $100.
| Line | Amount |
|---|---|
| Sale price | $417,500 |
| Buyer-agent compensation, 2.5% example | −$10,438 |
| Florida deed tax ($0.70 per $100) | −$2,923 |
| Title, settlement and other closing costs (example) | −$4,000 |
| Beycome Basic MLS listing | −$99 |
| Amount realized | $400,040 |
| Mortgage payoff | −$210,000 |
| Net proceeds before prorations | $190,040 |
| Adjusted basis ($300,000 + $40,000) | −$340,000 from amount realized |
| Gain | $60,040 |
The 2.5% buyer-agent line is an example only. Commissions are not set by law or NAR rules and are fully negotiable; sellers choose whether to offer buyer-agent compensation, and how much. Since August 17, 2024, such offers can’t be shown on the MLS. If you also hire a listing agent, add that fee to selling expenses too.
Here the $60,040 gain is well under the $250,000 exclusion, so an eligible owner would likely owe no federal tax on it. For a version focused on cash only, see cost of selling a house: estimate your net proceeds.
How do you figure your adjusted basis?
Your basis starts with what you paid for the home. Publication 523 lets you add certain purchase costs and the cost of improvements. Improvements, in the IRS’s words, add value, extend the home’s useful life or adapt it to new uses. Its examples include additions such as a bedroom, bathroom, deck, garage or porch, plus landscaping and driveways.
Repairs that just keep the home in shape, like fixing a leak or repainting a room, don’t count on their own. The exception is repair work done as part of a larger improvement project. Dig out receipts now; a forgotten $25,000 kitchen remodel is $25,000 of gain you might not need to report.
- Purchase price from your closing statement.
- Eligible purchase costs listed in Publication 523.
- Improvements, with receipts and dates.
- Minus items such as certain energy credits you claimed, where the IRS says to subtract them.
Which tax rules change your profit?
The main one is the home sale exclusion. You can usually exclude up to $250,000 of gain, or $500,000 for a married couple filing jointly, if you owned the home for at least 24 months of the 5 years before the sale and lived in it as your main home for 24 months too. For a couple, only one spouse needs to meet the ownership test.
Gain above the exclusion, or gain on a home that doesn’t qualify, goes on Schedule D and Form 8949. If you receive a Form 1099-S from the closing agent, you’ll generally report the sale. The IRS has the worksheets in Publication 523, and a tax pro can confirm your case.
Before you plug in closing costs, it helps to know who usually pays what. Our guide on who pays closing costs when selling a home breaks it down, and the Consumer Financial Protection Bureau explains the settlement documents you’ll see.
Which scenarios should you test in a selling house calculator?
Once your baseline works, change one input at a time:
- Price: try 3% lower and 3% higher than your target.
- Listing cost: a full-service commission you negotiate, a flat fee listing, or a pure FSBO sale.
- Buyer-agent compensation: none, a flat amount, or a percentage you choose to offer.
- Repairs or a credit after inspection, such as $3,000.
- Closing date, which shifts tax prorations and your last mortgage payment.
For commission scenarios, the real estate commission calculator and Calculate Real Estate Commission to Maximize Your Profit in 2026 walk through the math. Our older guides, Estimate Your Net Proceeds and Optimize Home Sale Strategy, Estimate Your Net Proceeds with Our Home Sale Calculator and Calculate Your Home Selling Costs with Confidence, cover the cash side.
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On homes listed by other agents, Beycome credits you up to 2% of the price at closing (1% kept, $1,499 minimum; not on FSBO homes or homes listed by Beycome sellers).
Buy a home →Price is the input that moves everything, so set it from sold comps. For national context, the National Association of Realtors publishes monthly median prices and days on market; September 2026’s median time on market was 33 days.
Where do selling house calculators get it wrong?
Most errors come from inputs, not math. People use the original purchase price and forget improvements, so they overstate the gain. Or they skip transfer taxes, which run from zero in some states to real money in others. Florida’s 70 cents per $100 is $2,923 on $417,500.
Calculators also can’t see your inspection, appraisal or buyer’s loan. Treat the first result as a range and update it when an offer comes in. The settlement statement from your title or escrow company is the final word on cash; your tax return is the final word on gain.
How does Beycome fit into the math?
A lower listing cost raises both numbers: more cash and a smaller amount of selling expenses to track. With Beycome, you can sell for sale by owner or list on the MLS through our flat-fee MLS plans: Basic $99 or Enhanced $399, with $0 to Beycome at closing. Beycome lists in 17 states and DC, and more than 22,000 homeowners have used it, saving over $225 million.
If you’d like experts to run offers and negotiation with you, Concierge is $999 through October 31, 2026 (list price $1,399), and you stay in control. In Florida and Texas, Beycome Title closes for a $99 settlement fee in Florida, prepaid at checkout, and $299 per side in Texas. Michigan, Ohio, Illinois and Indiana open starting November 1, 2026.
Buying your next home? The Beycome buyer program has no upfront fee. Beycome keeps 1% of the price (minimum $1,499) and credits the rest of the buyer-agent commission at closing, with lender approval. On a $400,000 home with 3% offered, that’s $8,000 back. It’s open to every buyer on homes listed by other agents; the commission credit can’t apply where no buyer-agent commission is offered, like most FSBO homes, or on homes listed by Beycome sellers. Start with a property value calculator estimate for the home you’re selling.
Frequently asked questions about home sale profit calculators
How do I calculate profit on the sale of my house?
Subtract selling expenses from the price to get the amount realized, then subtract your adjusted basis (purchase price plus improvements). The result is your gain.
Does my mortgage balance reduce my taxable profit?
No. The payoff reduces the cash you receive, but the IRS gain formula uses your basis, not your loan balance.
How much home sale profit is tax-free?
Usually up to $250,000, or $500,000 for married couples filing jointly, if you owned and lived in the home 2 of the last 5 years.
What counts as a selling expense?
Per Publication 523: sales commissions, advertising, legal fees, loan charges you paid that were the buyer’s to pay, and other costs to sell.
Do home improvements reduce the tax on my sale?
Yes, if they’re improvements, not routine repairs. They raise your basis, which lowers your gain. Keep receipts.
How accurate is a selling house calculator?
It’s only as good as your inputs. Use your payoff letter, real local transfer taxes and sold comps, then update it once you have an offer.
Worked example: purchase price, improvements, payoff, closing costs and the 2.5% buyer-agent figure are illustrations, not typical values. Median price: NAR, September 2026. Tax rules: IRS Publication 523 (2025). Florida deed tax: Florida Department of Revenue. All read October 27, 2026. General information, not tax or legal advice.
Beycome prices as of October 2026; from November 1, 2026, Concierge is $1,399 and Basic is $129 in California and Illinois. “$0 at closing” means no Beycome fee at closing; taxes, title costs and any agreed buyer-agent compensation still apply. Listing term: the maximum the state and MLS allow (24 months; 12 in MD and PA).
Beycome Title: Florida and Texas today; Michigan, Ohio, Illinois and Indiana starting November 1, 2026. Buyer credit: minimum $1,499, lender approval, not on FSBO homes or homes listed by Beycome sellers.
Sources
- IRS Publication 523 (2025), Selling Your Home, read October 27, 2026.
- NAR, Existing-Home Sales, September 2026, read October 27, 2026.
- NAR, settlement FAQs, read October 27, 2026.
- Florida Department of Revenue, documentary stamp tax, read October 27, 2026.
- Beycome Title, Florida and Texas closing fees, read October 27, 2026.
- Beycome, listing package features, October 2026.
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