The short answer: A deal box is two filters working together, a buy box (what you'll buy: industry, size, location, owner involvement) and a max purchase price (how much you can safely pay). You set the max by working backward from your income goal: required cash flow → minus your salary → divided by a safe DSCR → sized into a loan → grossed up by your down payment. Anything outside the box gets a fast "no." Solve your ceiling in the max purchase price tool.
The max price, worked backward from your goal
This is the calculation that makes the deal box real. Say you need $120,000 a year of take-home to walk away from your job. Here's how that goal becomes a price ceiling:
| Step | Logic | Amount |
|---|---|---|
| 1 · Your income goal (your salary) | What you need to draw to live | $120,000 |
| 2 · Required SDE | Your salary + a cushion for debt & safety | $200,000 |
| 3 · Cash flow for debt | SDE − your $120k salary | $80,000 |
| 4 · Safe annual loan payment | $80,000 ÷ 1.5× target DSCR | ≈ $53,000 |
| 5 · Loan it supports | ~$53k/yr, 10 yr, 10.5% → principal | ≈ $325,000 |
| 6 · Gross up for 10% down | $325,000 ÷ 0.90 | ≈ $360,000 max price |
So a $120k income goal on this profile means a max price near $360,000, right at the 2026 median sale price of ~$350k. Any listing above that either underpays you, over-leverages the loan, or both. The number is your discipline in one figure.
Wall one: the buy box
The buy box filters what you'll even look at. A tight one lets you reject 95% of listings in seconds and spend your energy on the few that fit. Define each of these:
| Filter | Example |
|---|---|
| Industry | Home services (HVAC, plumbing, electrical), things I understand |
| SDE range | $150,000, $300,000 |
| Price range | Up to $360,000 (my max) |
| Geography | Within 45 minutes of home |
| Owner involvement | Owner not the sole salesperson; a crew in place |
| Deal-breakers | One customer >20% of sales; lease <2 yrs left; declining revenue |
Tighter is faster
Beginners keep the box wide "to see everything" and drown. The pros narrow it until only a handful of deals a month qualify, then they know each one deeply. A tight box is a feature, not a limitation.
Wall two: the max price
The max price is the hard ceiling from the table above. It's built from your reality, not the seller's ask:
- Your income goal sets the salary the business must pay you.
- A safe DSCR (1.25 to 1.5×) sets how much of the remaining cash flow can service debt.
- Financing terms (rate, term, down payment) convert that payment into a price.
Change any input, a bigger down payment, a lower rate, a longer term, a leaner salary, and the ceiling moves. That's why you re-run it per deal in the max purchase price tool.
Putting the box together
A deal only clears when it sits inside both walls. Watch three listings hit the same box:
| Listing | SDE | Ask | Verdict |
|---|---|---|---|
| HVAC, crew in place | $200,000 | $540,000 | Over max, walk or restructure |
| Plumbing, owner sells all jobs | $180,000 | $350,000 | In price, fails owner-involvement |
| Electrical, manager running it | $190,000 | $340,000 | Inside the box, dig in |
Only the third listing clears both walls. The other two aren't "bad", they're just not your deal. That's the whole point of the box.
The deal box turns "is this a good business?" into "is this my business, at a price I can carry?"
Above your max but you love it?
Don't stretch the price, change the structure. A seller note or earnout can bridge the gap while keeping your loan safe (see how much to offer). If nothing works, walk. There's always another deal.
Set your ceiling in two minutes
Enter your income goal and financing to get the max price for your deal box.
Keep going
Frequently asked questions
A deal box is your two-part buying filter: a buy box that defines the kind of business you'll consider (industry, size, location, owner involvement) and a maximum purchase price no deal can exceed. The buy box answers what to buy; the max price answers how much.
Work backward from your income goal: required cash flow, minus the salary you'll draw, divided by a safe DSCR to size the affordable loan payment, converted to a loan and grossed up for your down payment. Run it in the max purchase price tool.
The industries you understand, an SDE or cash-flow range, a price range, a geography, the owner involvement you'll accept, and deal-breakers like heavy customer concentration or a short lease. Tighter boxes let you reject the 95% of listings that aren't for you.
No. The max is set by what the cash flow can safely finance while paying you a living wage. If a business you love is priced above it, change the structure with a seller note or earnout (see how much to offer), or walk.
Sources
- Median sale price (~$350k) and cash flow (~$165k), BizBuySell Insight Report (2026).
- DSCR underwriting minimums, SBA lender guidance, 2025 to 2026.
- Industry multiples, Acquisition Ace multiples data (2026).
