Buying a Business with an SBA Loan and a Seller Note: How Full Standby Works

Many first-time buyers plan on two kinds of debt: an SBA 7(a) loan and a note from the seller. The seller note is often treated as the friendly part of the deal, and it can be. But how it's structured, and whether you pay it while you're also paying the bank, can decide whether your first years of ownership feel steady or tight.

I've spent 17 years on the sell side of M&A as a partner at Five Talents Financial Group, and I bought and operate a retail business of my own. This guide covers how seller notes fit into an SBA acquisition under current rules, how that differs from a note paid alongside the bank loan, and how to stress-test coverage when you're paying both. It's education, not advice on any particular deal.

The three layers of a typical SBA acquisition

Most SBA-financed acquisitions are built from three layers:

• Your equity injection. For an initial acquisition, meaning a new owner buying the business, SOP 50 10 8.1 requires at least 10% of total project costs and says that requirement cannot be reduced or eliminated.
• The SBA 7(a) loan. A standard 7(a) loan can be up to $5 million.
• A seller note, in many deals. The seller agrees to receive part of the price over time.

The SOP also caps the whole stack. Total debt supporting a change of ownership, including any seller debt that isn't on full standby, is limited to the business valuation and must be supported by debt service coverage. If you pay more than the valuation supports, the difference has to come from equity. (For more on building your own value range, see How to Value a Small Business Before You Buy It.)

What "full standby" means under SOP 50 10 8.1

Full standby is a defined term. Under Appendix 15 of the SOP, debt on full standby has no payments of principal or interest for the term of the 7(a) loan. The related rules:

• Interest may accrue, be added to the standby debt and be amortized after the 7(a) loan is paid in full.
• The lender uses SBA Form 155 or its own equivalent standby agreement, with a copy of the note attached.
• The standby creditor subordinates its lien rights to the lender and can't act against you or the collateral without the lender's consent.
• Whoever provides standby debt may not also take an equity investment in the business.

When a standby seller note counts toward your equity injection

Seller debt that is subordinated to the lender and on full standby may be considered equity for SBA's purposes. It's one of several "limited" sources, along with other standby debt and non-controlling minority investors. Individually or together, limited sources can provide no more than half of the required injection. The rest has to come from "unlimited" sources, such as cash that isn't borrowed.

One more wrinkle: if the price is higher than the business valuation and quality of earnings report support, additional limited sources may fund the gap, but those funds must also be on full standby.

In plain terms, a standby note helps with the injection, but the seller receives nothing on it until your SBA loan is repaid. Many sellers won't accept that, so it becomes a price and structure conversation.

Seller notes you pay alongside the SBA loan

Not every seller note is meant to count as equity. A note outside the injection can carry regular payments while you're also paying the SBA loan. The SOP treats that as debt the business has to carry:

• For an initial acquisition, debt service coverage must be at least 1.25 to 1, on the last fiscal year-end or an average of the last two, on a historical or adjusted basis.
• Historical coverage is EBITDA divided by the combined debt service after the transaction, which includes the seller note payments.
• If other acquisition debt that isn't on full standby is interest-only, the lender must apply an amortization of no more than 10 years when testing coverage.
• The lender must evaluate your post-closing projections but may not rely on them to meet the coverage requirement.
• A global cash flow analysis must show at least 1 to 1 coverage.

A concurrently paid note is inside the underwriting, and it uses up your cushion.

How the rules have changed

The standby rules have moved more than once. From SBA's published versions of SOP 50 10:

Two things held steady. In every version, standby mattered for the part of a note counted as equity, and coverage was measured against all of the business's debt after the deal, so a seller note being paid counted against it. What rose is the bar: versions 6 through 8 set a 1.15 coverage minimum on a historical or projected basis, while 8.1 sets 1.25 for initial acquisitions and doesn't let projections carry the test. Which version applies depends on when the application was submitted or the loan number issued, so confirm with your lender.

In my deal

My own acquisition closed under an earlier version of the SOP, and the seller note was not on full standby. I paid the seller note and the SBA loan at the same time. The terms looked reasonable at signing. What strained cash flow afterward was that concurrent debt service: two payment streams drawing on the same operating cash, through ordinary seasonality and the extra costs of a transition year.

That's one deal, and lenders, sellers and structures all vary. The lesson I take is this: if you'll pay a seller note alongside your SBA loan, treat it as real debt from day one and test the combined payments against a bad stretch, not an average year.

How to stress-test DSCR when you're paying both

The lender's test happens once, at underwriting. Yours should be tougher.

1. Start with historical EBITDA, on the lender's basis: the last fiscal year or an average of the last two, adjusted only for items you can document.
2. List every payment: SBA principal and interest, seller note payments on their actual schedule, equipment loans and any line of credit. If the note is interest-only at first, model the year principal starts.
3. Calculate coverage twice, for the SBA loan alone and for the SBA loan plus the seller note. The difference is what the note costs you in cushion.
4. Run downside cases: EBITDA 10% and 20% lower, plus your weakest quarter annualized.
5. Check monthly cash, not just the annual ratio. A year that clears 1.25 can still contain a very tight month.
6. Check your own pay. SBA requires owner compensation sufficient for your obligations and living expenses, and so does your household.

Here's an illustration with made-up round numbers, not from any real deal:

Both clear 1.25 in the base case. With the note paid concurrently, a 10% dip falls below 1.25. Without it, even a 20% dip still clears.

Worksheet: SBA loan and seller note checklist

Use this before you sign an LOI or a note. The ETA Valuation Toolkit models SBA 7(a) financing and tests debt coverage if you want it in Excel.

Structure

• Is any part of the seller note counted toward my equity injection, and is that part subordinated and on full standby for the term of the 7(a) loan?
• Do seller debt and other limited sources stay within half of the required injection?
• If the seller carries more than the standby piece, how is the rest documented, and when do payments start?
• Is total debt, including non-standby seller debt, within the business valuation?

Coverage and cash

• Coverage on historical EBITDA, SBA only and SBA plus note, at base, 10% lower and 20% lower
• Month-by-month cash through the weakest season with both payments
• Any step-up when note principal begins or a rate resets
• My own pay, after all debt service

Documents and advisors

• The note, standby agreement and lender approval all describe the same payment terms
• My attorney has reviewed the subordination terms and what happens if a payment is missed
• My lender has confirmed which SOP version and coverage test apply
• I know that a seller note becomes eligible for 7(a) refinancing only after it has been in place and current, not on standby, for 36 months

Related guide: How to value a small business before you buy it

Disclaimer. Education and general business analysis only. This is not investment, legal, tax, accounting, lending or valuation advice, and nothing here is a recommendation to buy or sell any business or security. SBA rules change; confirm current requirements with your lender, attorney and CPA before signing anything.

About the author. Michael Keck has spent 17 years in sell-side M&A as a partner at Five Talents Financial Group since 2009. He bought and operates a retail business of his own. He is an Assistant Professor of Finance at Asbury University, holds an MBA from Duke and is a Ph.D. candidate at ESCP Business School. His working paper on entrepreneurship through acquisition is on SSRN.