Most small business acquisitions get financed the same way: an SBA 7(a) loan covering 75 to 90% of the purchase price, a seller note covering another 5 to 15%, and the buyer coming in with 10 to 15% down. That structure is the default for a reason. The SBA program was built for exactly this transaction type.
But "SBA loan" gets used loosely, and the details matter. The rate, term, DSCR floor, guarantee fee structure, and seller note rules all affect whether a specific deal pencils. This is the mechanics guide. No motivation, just the math.
What Is an SBA 7(a) Loan?
The SBA doesn't lend money directly. It guarantees a portion of loans made by participating lenders (banks, credit unions, and non-bank lenders), which reduces their risk and makes them willing to finance deals they'd otherwise decline.
For the most common loan size (above $150K), the SBA guarantees up to 75% of the loan amount. For loans at or below $150K, the guarantee rises to 85%. The lender keeps the remaining exposure, which is why they still underwrite the deal carefully. They're not fully protected.
The 7(a) program is the most commonly used SBA loan type. It covers business acquisitions, working capital, equipment, real estate, and refinancing. For this guide, we're focused entirely on the acquisition use case.
Eligibility Requirements
Both the business being acquired and the buyer must meet eligibility criteria. The SBA screens for these before the lender processes the application.
Business Eligibility
- For-profit business (nonprofits don't qualify)
- Operates in the United States or its territories
- Meets the SBA's size standards for "small business" (varies by industry, usually under $8 to $40M in annual revenue or under 500 employees)
- Cannot be a business in a prohibited industry: financial speculation, investment companies, lending, gambling, multi-level marketing, or certain other restricted categories
- Must have a legitimate business purpose. The loan can't be used for passive investment.
Buyer Eligibility
- U.S. citizen or lawful permanent resident
- Good personal credit history (most lenders require 680+ FICO for business acquisitions; some go lower with compensating factors)
- Relevant management experience. Lenders want to see that you can operate the business you're buying. Industry-adjacent backgrounds count. Career changers need to demonstrate transferable skills.
- No recent bankruptcies or significant outstanding derogatory items (varies by lender)
- Personal guarantee required. The SBA requires owners with 20%+ of the business to personally guarantee the loan. You're on the hook personally if the business defaults.
Eligibility is assessed at the lender level, not by the SBA directly. Different lenders have different overlays on top of SBA minimums. A Preferred Lender (PLP status) can approve loans faster with more discretion. They're worth seeking out.
Model your SBA deal before you talk to a lender
The free SBA calculator shows you DSCR, monthly payments, and cash required at any deal structure, in under 60 seconds.
Open the calculator →Loan Limits and Amounts
The maximum SBA 7(a) loan is $5 million. That's the ceiling per borrower, per use. If you've previously had an SBA loan, the remaining guarantee availability affects what you can borrow.
For business acquisitions, the loan amount is typically 75 to 90% of the purchase price, depending on deal structure:
- Pure asset acquisition (no real estate): SBA loan covers 75 to 80% of purchase price. Buyer brings 10 to 15% down. Seller note bridges the remaining 5 to 15%.
- Acquisition with real estate: Real estate component can be financed separately or combined. The SBA 7(a) can cover up to 90% of a deal that includes owner-occupied real estate, with a 25-year term on the real estate portion.
- Working capital: SBA loans can include working capital in the loan amount. This matters because many buyers forget to budget for operating cash after close. Ask your lender about including working capital in the structure.
For deals above $5M, you'll need supplemental financing: a larger equity injection, a conventional bank loan layered alongside the SBA portion, or seller financing to bridge the gap. The SBA cap is a hard constraint.
Interest Rates
SBA 7(a) loans are variable rate, tied to the Prime Rate. The rate is set at Prime plus a spread, with the spread capped by SBA regulation based on loan size and term.
The maximum variable-rate spread is set by loan size:
- Prime + 3.0% for loans over $350K (most acquisition loans)
- Prime + 4.5% for loans between $250K and $350K
- Prime + 6.0% for loans between $50K and $250K
- Prime + 6.5% for loans of $50K or less
As of June 2026, the Prime Rate is 6.75% (where it's sat since December 2025). Most acquisition loans run over $350K, so the cap is Prime + 3.0% = 9.75%, and lenders often price a quarter to a half point under the cap for strong deals. Call it 9.5 to 9.75% for a typical acquisition loan right now. Rates adjust quarterly with the Prime Rate. They move when the Federal Reserve changes the federal funds rate.
That's not a fixed number. When you're modeling a deal, use current Prime + 3.0% and run a sensitivity on rates moving 1 to 2% in either direction. The deal should hold at 12% if you're buying something right.
Loan Terms
Term length varies by what the loan is financing:
- Business acquisition (no real estate): 10-year term, standard. This is the default for most small business acquisitions.
- Real estate component: Up to 25 years for owner-occupied commercial real estate included in the acquisition.
- Equipment: Term based on useful life of equipment, usually 7 to 10 years.
- Working capital: Up to 10 years if included in an acquisition loan.
The 10-year term drives the math. A $1.2M loan at 9.75% over 10 years generates monthly payments of approximately $15,700, or about $188,300 per year in debt service. That number is what you're comparing to SDE when you calculate DSCR.
There's no prepayment penalty on a standard 10-year acquisition loan. The SBA's prepayment fee (the 5-3-1 structure in the first 3 years) only applies to loans with terms of 15 years or longer, which in practice means deals with real estate.
Down Payment Requirements
The SBA requires a minimum equity injection of 10% of the total project cost. In practice, most lenders want to see 10 to 15%, with some deals requiring more depending on risk factors.
What counts as equity injection:
- Cash from the buyer's own funds (primary source)
- Gift funds from a family member (must be documented as a gift, not a loan)
- Seller notes, with an important caveat (see next section). The SBA allows seller notes to count toward equity injection under specific conditions, but only the portion on "full standby" qualifies.
What does NOT count as equity injection:
- Borrowed funds (home equity loans, personal loans, 401k loans). These are still debt.
- Seller notes that aren't on full standby
- Goodwill from the transaction itself
On a $2M acquisition, expect to bring $200K to $300K in liquid cash to the table. Plan for working capital on top of that. The down payment covers the purchase price; the cash needed to operate the business after close is a separate budget line.
Seller Notes in SBA Deals
A seller note is when the seller carries back a portion of the purchase price as a loan to the buyer. Instead of receiving the full price at close, they receive payments over time, typically at 6 to 8% interest over 5 to 7 years.
Seller notes serve two functions in SBA deals:
- Bridging the gap. The SBA caps loans at $5M and typically funds 75 to 80% of purchase price. A seller note covers the difference between the SBA loan and the full purchase price, reducing the buyer's required cash down payment.
- Equity injection credit. Under current SBA rules, if a seller note is on "full standby" for the first 24 months of the loan, it can count toward the buyer's equity injection requirement. This lets buyers with less cash stretch further.
The standby requirement is significant. During the standby period, the buyer makes no principal or interest payments on the seller note. After 24 months, normal payments resume. Sellers who need cash flow from the note immediately won't agree to full standby. That becomes a negotiating point.
Standard seller note ranges: 5 to 15% of purchase price. On a $2M deal, that's $100K to $300K. A 10% seller note on a $2M deal ($200K, 7% interest, 7-year term) adds about $3,000/month to debt service. Meaningful when you're calculating DSCR.
SBA Guarantee Fees
The SBA charges a one-time guarantee fee on the guaranteed portion of the loan. The fee is paid at closing and is typically financed into the loan (added to the principal).
Fee rates for SBA fiscal year 2026 (October 2025 through September 2026):
- Loans up to $150K: 2.0% of the guaranteed portion (the old fee waiver for small loans ended; manufacturers still get 0% on loans up to $950K)
- Loans from $150K to $700K: 3.0% of the guaranteed portion
- Loans from $700K to $5M: 3.5% of the first $1M guaranteed, plus 3.75% on the guaranteed portion above $1M
On a $1.2M loan (75% guaranteed = $900K), the fee is approximately 3.5% of $900K = $31,500. Financed into the loan, that adds about $400/month to payments over 10 years. Not trivial. Include it in your model.
Note: SBA fee structures change periodically, and Congress occasionally waives fees for specific periods or loan sizes. Verify current rates with your lender before modeling.
DSCR Requirements
This is the number that determines whether the deal gets financed. Debt Service Coverage Ratio (DSCR) = SDE ÷ Annual Debt Service.
SBA lenders require a minimum DSCR of 1.25x. The business has to generate at least 25% more cash than its total annual debt payments. Most lenders prefer 1.35 to 1.50x or higher. Below 1.25x, the loan doesn't get approved, period.
Annual debt service includes everything: SBA loan payments, seller note payments (even during standby; some lenders stress-test this), and any other debt the business carries forward. Be careful not to calculate DSCR against just the SBA loan while ignoring the seller note payment that kicks in after month 24.
Quick example: $1.5M purchase price, $450K SDE, 10% down ($150K), 10% seller note ($150K), SBA loan of $1.2M.
- SBA loan at 9.75%, 10 years: $15,700/month = $188,300/year
- Seller note at 7%, 7 years: $2,800/month = $33,600/year (after standby period)
- Total annual debt service: $221,900
- DSCR: $450,000 ÷ $221,900 = 2.03x. Strong.
For a detailed DSCR breakdown and how different deal structures affect the ratio, see the DSCR guide. You can also run any deal scenario through the free SBA loan calculator to see the numbers instantly.
The SBA Loan Application Process
From signed LOI to funded loan typically takes 60 to 90 days. That's the baseline. Complex deals, appraisal delays, and lender bandwidth can push it to 120 days. Build that timeline into your exclusivity period negotiations.
Pre-Qualification (Days 1 to 10)
Start the lender conversation before you're under LOI, ideally while you're still doing initial due diligence. Most SBA lenders can give you a conditional pre-qualification based on basic deal parameters: purchase price, SDE, proposed structure, and your financial profile. This tells you whether the deal is financeable before you invest months in it.
Formal Application (Days 10 to 30)
Document requirements typically include:
- 3 years of business tax returns (seller's)
- 3 years of personal tax returns (buyer's)
- Year-to-date financial statements
- Personal financial statement (SBA Form 413)
- Business plan or acquisition narrative
- Resume / management background
- Signed purchase agreement or LOI
- Business valuation (some lenders order their own; some accept buyer's)
Underwriting and Approval (Days 30 to 60)
The lender reviews everything and submits to SBA for guarantee approval (for non-PLP lenders) or approves directly (PLP lenders). This stage is where deals stall: missing documents, questions about add-backs, valuation disagreements. Respond to lender requests within 24 hours.
Closing (Days 60 to 90)
Environmental review (if real estate is involved), business appraisal, attorney review of purchase agreement and loan documents, final conditions clearance, and funding. The last two weeks before closing are the most logistically intensive.
Choosing a Lender
Not all SBA lenders are equivalent. Key factors:
- Preferred Lender Program (PLP) status. PLP lenders can approve loans in-house without SBA review, which cuts 2 to 4 weeks off the timeline. Work with a PLP lender whenever possible.
- Business acquisition experience. Some lenders do mostly real estate or equipment loans. Lenders who specialize in acquisitions understand add-backs, seller notes, and goodwill treatment. They ask better questions and create fewer surprises.
- National vs. regional. Large national SBA lenders (Live Oak Bank, Byline Bank, Celtic Bank) process high volumes and have dedicated acquisition teams. Regional banks may offer more flexibility on edge cases but slower timelines.
Get quotes from 2 to 3 lenders. Rate spreads are relatively standardized (SBA sets the ceiling), but fee structures, required reserves, and closing costs vary.
Common Mistakes
Undercapitalization
Buyers show up to closing with exactly enough for the down payment and nothing else. The business immediately encounters a slow month, a major equipment repair, or a delayed receivable, and there's no operating buffer. Budget for 3 to 6 months of operating expenses as working capital reserve in addition to your down payment. SBA loans can include working capital; use that feature.
Using EBITDA Instead of SDE
EBITDA and SDE measure different things. SDE adds back owner compensation and benefits, making it appropriate for owner-operated businesses where you're replacing the owner. EBITDA is the right metric for businesses with professional management already in place. Using EBITDA on a single-owner business understates cash available to service debt. Using SDE on a business with a paid management team overstates it. Know which metric applies to the specific business.
Ignoring Rate Sensitivity
Variable-rate loans move. A deal that pencils at 9.75% may not pencil at 11.75%. Model your DSCR at current rate + 2% before committing. If the deal only works at the current rate floor, you're not buying enough cushion.
Unrealistic Projections
SBA underwriters use historical earnings, not projections. If the business earned $350K in SDE last year and the seller claims $500K is achievable with some changes, the lender will underwrite to $350K. Deals built on projected upside don't get funded. Even if they do, you're personally guaranteeing debt against a number you haven't achieved yet.
Choosing the Wrong Deal Structure
Asset purchase vs. stock purchase has meaningful tax implications. Most small business acquisitions are structured as asset purchases. You buy the assets and assume selected liabilities, leaving the company's full legal history with the seller. Asset purchases are generally cleaner for buyers. Stock purchases can have advantages in specific situations (licenses that don't transfer, customer contracts that require consent). Get a CPA who does business acquisitions involved early.
Neglecting the Personal Guarantee Implications
The SBA personal guarantee is not a formality. You are personally liable. If the business fails and the SBA calls the guarantee, they can come after personal assets: home equity (with some protections depending on state homestead laws), savings, and investments. This is manageable risk for a well-underwritten deal. It becomes existential risk for a bad one. Don't borrow your way into a bad deal because the lender was willing to fund it.
How to Model Your Deal
Before you talk to a lender, run the numbers yourself. The inputs you need:
- Asking price
- Seller's Discretionary Earnings (SDE), from the CIM or your own normalization
- Proposed down payment percentage (10 to 15%)
- Seller note percentage and terms (if applicable)
- Current Prime Rate + 2.75% for the SBA loan rate
The output you're solving for: DSCR above 1.25x (minimum) and ideally above 1.5x for comfortable approval odds. If the DSCR is below 1.25x at the asking price, you need a price reduction, a larger down payment, or a larger seller note to make the math work.
The free SBA loan calculator runs these scenarios instantly and shows you DSCR, monthly payment breakdowns, and total cash required at close. Run it before you run the numbers by hand.
For a step-by-step tutorial on using the calculator to model different scenarios, see the SBA loan calculator guide.
What This Financing Structure Means in Practice
Take a concrete deal: $1.5M purchase price, $450K SDE, 3.3x multiple. Buyer brings 10% down ($150K). Seller carries 10% as a note ($150K). SBA loan: $1.2M.
- Annual debt service (SBA + seller note, post-standby): ~$221,900
- DSCR: 2.03x. Strong, lender is comfortable.
- Annual free cash flow after debt service: ~$228,100
- Cash-on-cash return on $150K invested: ~152%. This is why SBA borrowing works.
That cash-on-cash calculation is why the SBA acquisition model is compelling for corporate operators with $150K to $300K deployable. You're not getting those returns in a stock portfolio. You're taking on more risk and more work, but the borrowing math is real.
The same deal at 5x multiple ($2.25M purchase price, same $450K SDE):
- SBA loan: $1.8M at 9.75%, 10 years = $23,500/month = $282,500/year
- Seller note at 10% ($225K): $3,600/month = $43,200/year
- Total annual debt service: $325,700
- DSCR: $450,000 ÷ $325,700 = 1.38x. Clears the floor, with thin margin.
That second deal technically clears the SBA floor, but the margin is thinner than it looks. Any revenue softness, unexpected expense, or rate increase pushes you toward 1.25x. The lender may pass anyway. And even if funded, you're paying down $326K/year in debt on $450K in earnings, leaving $124K for yourself before taxes. The math looks great until you run the cash-on-cash.
Multiple discipline (staying below 4x SDE on acquisition price) matters because of how the financing math works over a 10-year hold. The 4x ceiling is a structural one.
The SBA 7(a) Loan in Context
The SBA program is the reason self-funded acquisition is viable. Without the guarantee program, conventional lenders would require 30 to 40% down on a business acquisition. The asset class is too illiquid and too dependent on operator skill for a bank to take otherwise. The SBA backstop changes the risk calculus.
That said, the program has limits. It works best for acquisitions up to $5M in loan size (the SBA 7(a) cap) with stable, historical earnings. It doesn't work for unprofitable businesses with projected upside. It doesn't work for deals that require a lot of goodwill or for buyers who don't have the management background to operate what they're buying.
For the right deal and the right buyer, it's an exceptional tool. Understanding the mechanics before you're in a live process makes the whole thing faster and less stressful.
For a broader acquisition process overview, start with the complete guide to buying a small business. For DSCR mechanics specifically, the DSCR guide has worked examples covering how different deal structures affect the ratio.
And when you're ready to pick a lender, use the free SBA lender directory: active 7(a) lenders ranked from public SBA FOIA data, sortable by speed to fund, M&A focus, state, and loan size. It's the fastest way to build a shortlist of lenders that actually fund acquisitions like yours.
Still hunting for the right business to finance? Browse the business brokers directory: 900+ US brokers ranked by how many businesses they actually listed in the last 90 days, so you can find the ones moving real deals in your market — not the ones who paid for placement.