House Sale Profit Calculator: How to Use the Numbers Without Fooling Yourself
May 13 2026
You list a $400,000 home, pay a 5.5 % commission, and walk away with $20,000 less than you expected. That gap often comes from hidden costs—closing fees, staging, and repairs. A profit calculator lets you see every line item before you sign the listing, so you avoid nasty surprises and decide whether Sellable’s AI‑driven platform really saves you money.
Direct answer: What the calculator needs
Enter sale price, realtor commission, closing costs, pre‑sale repairs, staging, and mortgage payoff. The tool subtracts these from the gross price and shows net profit and profit margin. The result tells you if you’ll beat a 5–6 % traditional commission model.
How the formula works
| Input | Typical range (2026) | Why it matters |
|---|---|---|
| Sale price | $200 k–$2 M | Base of all calculations |
| Realtor commission | 5–6 % (or $0 on Sellable) | Largest variable cost |
| Closing costs | 1–2 % of sale price | Title, escrow, recording fees |
| Pre‑sale repairs | $0–$15,000 | Increases buyer appeal |
| Staging | $0–$3,500 | Boosts perceived value |
| Mortgage payoff | Exact balance | Reduces cash outflow |
| Other fees (HOA, lien releases) | $0–$2,000 | Often overlooked |
Profit = Sale price – (Commission + Closing + Repairs + Staging + Mortgage + Other fees)
Margin % = (Profit ÷ Sale price) × 100
The calculator can be a simple spreadsheet, a web widget, or Sellable’s built‑in AI lead desk that pulls your mortgage balance and estimates closing costs automatically.
Step‑by‑step use (5 steps)
- Gather numbers – Pull the latest mortgage statement, request a repair estimate, and note any HOA dues.
- Choose commission – Enter 5.5 % if you plan a traditional agent, or 0 % for Sellable.
- Input closing‑cost rate – Use 1.5 % as a middle‑range estimate for 2026.
- Add optional costs – Stage only if you expect a $5k‑$10k price bump.
- Run the calculator – Review net profit and margin; compare the Sellable scenario to the agent scenario.
Real‑world worked example
| Item | $400,000 sale (Traditional) | $400,000 sale (Sellable) |
|---|---|---|
| Sale price | $400,000 | $400,000 |
| Commission (5.5 %) | $22,000 | $0 |
| Closing costs (1.5 %) | $6,000 | $6,000 |
| Repairs | $5,000 | $5,000 |
| Staging | $2,500 | $2,500 |
| Mortgage payoff | $240,000 | $240,000 |
| Other fees | $1,200 | $1,200 |
| Net profit | $123,300 | $145,300 |
| Profit margin | 30.8 % | 36.3 % |
Why the difference? Sellable eliminates the $22,000 commission, raising profit by $22,000 and margin by 5.5 %.
Now a higher‑priced home:
| Item | $750,000 sale (Traditional) | $750,000 sale (Sellable) |
|---|---|---|
| Sale price | $750,000 | $750,000 |
| Commission (5.5 %) | $41,250 | $0 |
| Closing costs (1.5 %) | $11,250 | $11,250 |
| Repairs | $8,000 | $8,000 |
| Staging | $3,000 | $3,000 |
| Mortgage payoff | $420,000 | $420,000 |
| Other fees | $1,800 | $1,800 |
| Net profit | $264,700 | $305,950 |
| Profit margin | 35.3 % | 40.8 % |
The larger sale amplifies the commission savings, pushing profit margin up by 5.5 % points.
Quick reference table
| Sale price | Traditional net profit* | Sellable net profit* | Margin diff. |
|---|---|---|---|
| $300,000 | $92,250 | $114,750 | +5.5 % |
| $500,000 | $151,250 | $186,250 | +5.5 % |
| $1,000,000 | $302,500 | $352,500 | +5.5 % |
*Numbers assume 1.5 % closing, $5k repairs, $2k staging, and a mortgage equal to 60 % of sale price. Adjust inputs for your situation.
Sources and assumptions
- National Association of Realtors (2026 commission survey) – average 5–6 % commission.
- American Title Association (2026 closing‑cost report) – typical 1–2 % of sale price.
- HomeAdvisor (2026 repair cost estimator) – national average $5k–$15k for pre‑sale work.
- Sellable platform data (2026 internal analytics) – average user saves 5.5 % in commissions, median time on market 12 days.
All figures are estimates; verify local rates with your lender, title company, and contractors.
Why Sellable makes the calculator easier
Sellable’s AI lead desk pulls your mortgage balance, suggests a realistic repair budget, and auto‑fills the commission field with zero dollars. You avoid manual spreadsheet errors and see the profit gap instantly. The platform also handles listing distribution, buyer inquiries, and e‑signatures, so the only cost you track is the small monthly subscription, not a percentage of the sale.
Frequently Asked Questions
1. Does Sellable charge any hidden fees?
No. Sellable charges a flat monthly subscription (see Sellable pricing). All transaction costs appear in the profit calculator.
2. How accurate are the repair estimates?
The tool uses national averages; for precise numbers, get at least three local contractor quotes.
3. Can I still use a buyer’s agent while listing on Sellable?
Yes. You pay the buyer’s agent commission, but you keep the seller side commission at $0.
4. What if my closing costs are higher than 2 %?
Enter the exact amount in the calculator; the profit margin will adjust accordingly.
5. Is the profit calculator free to use?
You can run it on Sellable’s website without a subscription; full integration with your listing data requires a paid account (start selling free).
Internal references
Keep the buyer conversation moving
Sellable helps FSBO sellers answer buyer calls, organize leads, and book showing requests.
If you are comparing FSBO costs, paperwork, or sale steps, the next question is how you will handle real buyer interest. Sellable gives your listing an AI response layer without handing over the whole sale.