Pillar guide
How much business can I afford to buy?
Affordability is not one number. It's three numbers that have to line up — what you can put in, what the business's cash flow can service, and what an SBA 7(a) lender will actually approve. The smallest of the three is your real budget.
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The three numbers that define your budget
Most "how much can I afford" content hands you a single down-payment percentage and stops there. That's wrong. Real affordability is the smallest of three numbers:
| Ceiling | What it measures | What sets it |
|---|---|---|
| Buyer capacity | What you can put in, and still hold reserves | Your cash, less what the business needs for working capital after closing |
| Business debt-service capacity | What the target’s cash flow can carry | SDE less a replacement owner salary, divided by the coverage ratio the lender requires |
| Lender-approved maximum | What the programme and the lender will actually approve | The SBA 7(a) programme cap, and the lender’s own credit decision |
- Buyer capacity — how much cash you can put in, plus reserves.
- Business debt-service capacity — how much debt the target's cash flow can service at the DSCR a lender will accept.
- Lender-approved max — what an SBA 7(a) lender will actually approve. SBA's program cap is $5,000,000 [1] , but lenders limit the actual loan to what the business can service [2] .
If your buyer capacity supports a $2M deal but the business's cash flow only supports $1.2M of debt, your real price ceiling is closer to $1.2M plus your injection — not $2M. The math below shows why.
Number 1 — Buyer capacity
Buyer capacity is what you can put in and what you have left for working capital and reserves. From 1 October 2026, SBA SOP 50 10 8.1 sets the minimum equity injection on a first acquisition at 10% of total project cost — purchase price plus any other use of proceeds in the loan — and states it cannot be reduced or eliminated. At most half may come from limited sources such as a standby seller note, so plan on roughly 5% of project cost in unborrowed cash as a floor, and more in practice. The full rules are here.
- Cash on hand. Liquid, in your name, sourced and seasoned (lenders typically ask for two to three months of bank statements).
- Less reserves. Lenders want to see personal reserves on top of the cash you put into the deal. How much is credit policy rather than a published rule, and it varies by lender — ask early, because it changes the price you can reach.
- Less closing costs. Legal, lender, appraisal, and SBA guarantee fees. SBA 7(a) guarantee fees can be financed into the loan, but other closing costs come from your pocket.
What SBA will not let you count: future business cash flow as your injection; a seller note beyond half of the required injection (a note on full standby, with no payments for the life of the SBA loan, can count for up to half — the rules); borrowed funds secured by the business you're buying. Your injection has to come from you.
Number 2 — Business debt-service capacity
This is the number most buyers underweight. It's a function of the target's cash flow, a realistic replacement owner salary, taxes, and the debt-service coverage ratio (DSCR) a lender will require.
On a first acquisition, SBA requires DSCR of at least 1.25, measured on the last fiscal year or a two-year average, and lenders can require more [2] . That means the business's cash flow must cover the loan payment at least 1.25 times, on its history rather than on a forecast. If the business throws off $200K of cash flow after a replacement owner salary and taxes, at a 1.25 DSCR the lender will let you support roughly $160K of annual debt service — not $200K.
The annual debt service you can support, divided by an assumed interest rate and amortization, gives you the loan amount the business can carry. That loan amount, plus your buyer injection, is your debt-service-based price ceiling.
Number 3 — Lender-approved max
SBA 7(a)'s program cap is $5,000,000 per loan [1] , and SBA loans are explicitly allowed for "changes of ownership (complete or partial)" [1] . But the actual approval is constrained by the business's cash flow (Number 2), the buyer's credit and injection (Number 1), the buyer's industry experience, and the lender's own underwriting.
For larger deals that include owner-occupied real estate, the SBA 504 program (max $5.5M, 10/20/25-year terms) can be a piece of the stack — but 504 cannot finance goodwill or working capital [5] . It's a real-estate-and-equipment piece, not a substitute for 7(a).
Find SBA lenders through SBA's Lender Match [3] . Only businesses that meet SBA size standards by NAICS code are eligible [4] .
Affordability calculator
Enter your numbers. The calculator outputs the three ceilings and highlights the smallest — your realistic price ceiling. This is a starting point for buyer analysis — not a loan pre-approval and not a substitute for an actual lender conversation. See the methodology page for the formula and assumptions.
Your inputs
1. Buyer-capacity ceiling
$2,000,000
Cash ÷ equity injection %
2. Business debt-service ceiling
$1,400,000
Loan the business cash flow can support + your injection
Max loan at this DSCR: $1,200,000 · Annual debt service supported: $140,000
3. SBA lender program max
$5,000,000
SBA 7(a) program cap (your actual lender may approve less based on cash flow)
Your realistic price ceiling (smallest of the three)
$1,400,000
This is a starting point for a conversation with a SBA lender — not a pre-approval. The actual loan and price ceiling depend on the lender's full underwriting.
Show the math
1. Buyer capacity ceiling = Cash ÷ (equity injection % ÷ 100) 2. Business cash flow available = SDE − replacement owner salary Annual debt service supported = cash flow available ÷ DSCR Max loan = PV of an annuity: PMT = annual DS, rate = annual rate / 12, n = years × 12, then loan = PMT × [1 − (1+r)^−n] / r Business debt-service ceiling = max loan + your cash injection 3. SBA lender program max = $5,000,000 Realistic ceiling = min(1, 2, 3)How to use this number
Once you have your realistic ceiling, use it three ways:
- As a filter on your search. Don't waste time on targets priced well above your ceiling — unless you can structure seller financing that the lender accepts as a secondary layer.
- As a reality check on SDE multiples. If your ceiling is $1.4M and a target is asking $1.4M at a 3× SDE multiple, the target's SDE needs to be ~$470K. If the listing shows SDE of $300K, either the multiple is wrong or the asking price is wrong.
- As a starting point with a SBA lender. Bring this number to a SBA Lender Match conversation. The lender will run their own numbers; you'll be in the right ballpark.
Frequently asked questions
What's the minimum down payment for an SBA 7(a) loan to buy a business?
SOP 50 10 8.1 sets it at 10% of total project cost on a first acquisition — project cost, not purchase price, so it includes any closing costs and working capital funded by the loan — and states it cannot be reduced or eliminated. No more than half of that injection may come from a standby seller note or other limited source, so roughly 5% of project cost has to be unborrowed cash. The practical cash-to-close is higher still, because your own diligence spend, licence costs and post-closing reserves sit on top of the injection rather than inside it.
Does seller financing count toward my down payment?
SBA allows seller financing (a seller note) as a secondary layer of financing, but it generally cannot substitute for the buyer's cash injection. The seller note typically stands behind the SBA loan (subordinated) and on full or partial standby during the SBA loan term. The buyer still needs to bring real cash.
What DSCR will SBA 7(a) lenders require?
On a first acquisition, SBA's SOP 50 10 8.1 requires a debt-service coverage ratio (DSCR) of at least 1.25, measured on the business's last fiscal year or a two-year average. That means the business's cash flow, after a replacement owner salary and taxes, must cover debt service at least 1.25 times, and projections cannot be used to get there. Lenders can require more. Below 1.25 on history, an acquisition loan cannot be made on those numbers.
Can I use the business's cash flow to fund my down payment?
Generally no — the buyer's injection must come from the buyer's own funds, not from the business being acquired. Lenders will source and season your down payment funds (typically ask for two to three months of bank statements). Trying to fund the injection from the business pre-close is a common deal-killer.
What interest rate should I assume for an SBA 7(a) acquisition loan?
SBA 7(a) loan rates are typically Prime plus a markup, with the markup capped by SBA rules based on loan size. The actual rate depends on the lender, your credit, the deal, and the rate environment at the time you apply. The calculator on this page defaults to a rate you can edit; check current Prime and current SBA maximum rates at sba.gov before finalizing any pro-forma.
Is the $5M SBA 7(a) max realistic for a small-business acquisition?
Yes for total loan size, but the lender will limit the actual loan to what the business cash flow can service at the required DSCR — not to the program maximum. A target with $300K of post-buyer-salary cash flow may only support a ~$1.5M to $2M loan even though SBA's program cap is $5M.
Sources cited on this page
Every mutable number on this page — program caps, tax rules, thresholds, filing deadlines — traces to one of these primary sources. Rules change; check the source before you act on the number.
- 1 U.S. Small Business Administration. 7(a) loans. https://www.sba.gov/funding-programs/loans/7a-loans
- 2 U.S. Small Business Administration. 7(a) loan program (lender-facing). https://www.sba.gov/partners/lenders/7a-loan-program
- 3 U.S. Small Business Administration. Lender Match. https://www.sba.gov/funding-programs/loans/lender-match-connects-you-lenders
- 4 U.S. Small Business Administration. Size Standards (13 CFR Part 121). https://www.ecfr.gov/current/title-13/chapter-I/part-121
- 5 U.S. Small Business Administration. 504 loans. https://www.sba.gov/funding-programs/loans/504-loans
Educational only — not legal, tax, lending, or investment advice. Confirm specific rules, rates, and forms with the relevant New York State agency, attorney, CPA, lender, or insurer before acting. See the editorial policy and methodology for how sourcing and review work.