SBA Loan to Buy Out a Business Partner: Rules, Down Payment and What Changes on 1 October 2026

Short answer: Yes, an SBA 7(a) loan can fund a partner buyout, and the equity injection rules treat it more generously than a purchase from an outside seller. If the remaining owners certify they have been active in the business and held the same or higher ownership stake for at least the preceding 24 months, and the business has a debt-to-worth ratio no greater than 9:1 before the change, less than the usual 10% injection may be allowed. From 1 October 2026 an owner buyout must also clear a 1.25 debt service coverage ratio, calculated on historical earnings with projections excluded. Last updated September 2026. Educational only, not lending, tax or legal advice.

Why a partner buyout is the easiest SBA acquisition to finance

Every other business acquisition asks a lender to bet on a stranger running a company they have never run. A partner buyout does not. The person borrowing the money has been inside the business, on the cap table, for years. The financials the lender is underwriting were produced under that person's own management. From a credit perspective the key risk in a small business acquisition, which is the transition of ownership to someone unproven, has already been retired.

The SBA rulebook reflects that, and it does so in the one place that decides whether most buyers can afford the deal at all: the equity injection. On a complete change of ownership the SBA wants a minimum of 10% of total project costs from the borrower in cash. Note the base, because it catches people out. Total project costs is defined as all costs required to complete the change of ownership, so it is a larger number than the purchase price alone once closing costs and working capital are in the stack.

On a partner buyout there is a carve-out. Writing on 6 May 2025, Michelle Sergent Kaas of Starfield & Smith, a law firm that practices in SBA lending, sets out the test under SOP 50 10 8: less than 10% equity is allowed where the remaining owner or owners certify that they have been active in the business and have held the same or higher ownership interest for at least the preceding 24 months, and the debt-to-worth ratio of the business is no greater than 9:1 prior to the change. Windsor Advantage, writing on 28 July 2025, states the partial change of ownership version of the same test in the same terms.

If you fail either limb, you do not automatically owe 10%. You owe the lesser of two figures: cash sufficient to bring the debt-to-worth ratio to no greater than 9:1, or cash of at least 10% of the business purchase price. On a company with a strong balance sheet the first number can be well below the second, and the rule takes the smaller one.

What changes on 1 October 2026

SOP 50 10 8.1 applies to any application issued an SBA loan number on or after 1 October 2026. The date that governs is the loan number date, not the date you sign a buyout agreement and not the date you close, so a deal being negotiated now can land under either rulebook depending on how fast the lender moves. Ask which one they expect to close you under before you build a budget around it.

Jeffrey Bardos, CEO of Speritas Capital, published a breakdown of the changes on 27 August 2026. Owner buyout is named explicitly in the tightened coverage tier, so this is not a rule that applies to acquisitions generally and spares partner deals.

The change that will kill the most deals is not the coverage ratio. It is the removal of projections. A buyout priced off next year's contracted growth, which a lender could previously consider, now has to service its debt out of what the business already earned. If your deal only works on the forecast, it does not work from October.

How much do you actually need to put down?

Possibly nothing, and this is the single most expensive assumption buyers get wrong. Plenty of people spend a year saving a down payment for a buyout that never required one, then discover at underwriting that the carve-out applied all along.

Run the two tests before you budget. First, have you been active in the business and held the same or higher ownership interest for at least 24 months? That is a certification, and it is usually either obviously true or obviously not. Second, what is the company's debt-to-worth ratio on the most recent fiscal year balance sheet and the current quarter balance sheet? If both are at or below 9:1, you are inside the carve-out. If the second figure is the one that fails, that is sometimes fixable in a quarter by retiring debt or leaving profit in the business rather than distributing it, which is a far cheaper way to find $80,000 than saving it.

Because everything now rests on the balance sheet and on trailing earnings rather than a forecast, the quality of your bookkeeping stops being a hygiene matter and becomes the deal. Lenders will not accept a management summary assembled the week before the application. If your books are a bookkeeping export rather than a set of statements, it is worth turning them into a proper P&L, balance sheet and cash flow statement before the file goes in, because the debt-to-worth test is read straight off the balance sheet and nobody at the bank will reconstruct it for you.

Do I need a business valuation to buy out my partner?

If SBA money is involved, yes. A change of ownership requires an independent valuation from an accredited Qualified Source, and the SOP names five credentials: ASA, CBA, ABV, CVA and BCA. The detail that derails deals is procedural rather than technical. The lender must engage the appraiser directly, and the report must be prepared for the lender. A valuation you commissioned, or one your partner brought to the table, does not satisfy the file no matter how well credentialed the author.

Published pricing is thin. On the ladders we could read firsthand, a business valuation runs from about $1,900 on a business under $500,000 of revenue to $3,900 above $10,000,000, on a two to three week turnaround. Our breakdown of what a business valuation costs for an SBA loan covers who is allowed to write one and the cheap report that turns out to be scoped for something else entirely.

Can I use a seller note to cover the injection?

Partly. A note from your departing partner can count toward the required equity injection, but only on full standby for the life of the SBA loan, meaning no principal and no interest for the entire term, and it cannot exceed half of the required injection. On a 10% requirement that means 5% can come from the note and 5% has to be cash. From 1 October 2026 that cap applies across standby debt, seller notes and minority investor equity taken together, rather than to each source separately.

This is where partner buyouts have a genuine practical advantage. The person selling you the stake is not a stranger optimizing for a clean exit, they are someone who has been your business partner and who may reasonably prefer payments spread across several tax years. Instalment treatment spreads their gain rather than bunching it into one return, which is a real benefit to them and not merely a concession. Our page on buying a business with no money down covers where the standby rules bite and where the "no money down" claims online quietly stop being true.

What if your partner will not agree a price?

Start with the partnership or operating agreement rather than with a lender. Many contain a buy-sell provision with a valuation mechanism, a right of first refusal, or a forced sale clause that either side can trigger. Where one exists, it usually overrides whatever you would otherwise negotiate, and a buyout executed outside its terms is contestable later by the person you thought you had bought out.

Where the agreement is silent or the trigger is disputed, this stops being a financing question. Buy-sell disputes between small business co-owners are litigated often enough that the fact patterns are well documented, and it is worth being able to search how courts have actually read clauses like yours before you commission an opinion on it. Then get an attorney. Business and corporate attorneys commonly bill $250 to $400 an hour, and a few hours spent on the agreement before you name a number is cheap against the structural decisions it locks in.

Which lenders do partner buyouts?

Any SBA preferred lender can, but appetite varies more than the rulebook does. The practical filter is experience with change of ownership specifically, because the equity injection carve-out, the standby documentation on a seller note and the valuation engagement are all places where a lender who does mostly working capital lending will slow you down or simply decline. Ask three questions on the first call: how many change of ownership deals they closed last year, whether they apply the 24 month partner buyout carve-out, and whether they expect your file to be numbered before or after 1 October 2026.

Bank prime was 6.75% on 2 September 2026 according to the Federal Reserve H.15 release, and 7(a) variable rates are quoted as a spread over prime, so that is the number your pricing conversation starts from.

Before you call a lender

Three things are worth settling first, because they change the loan you are asking for. Decide whether you or the company is buying the stake, since a cross-purchase and a redemption produce different balance sheets and the lender is about to test one of them. Read the goodwill clause in your partnership agreement, because it determines the tax character of the largest slice of the price. And establish a defensible enterprise value before you agree a number for the stake, rather than reasoning backwards from a figure that sounds fair.

All three are covered in detail on our partnership buyout agreement and partner buyout financing page, along with the statutory sections that govern each structure. The wider change of ownership requirements, including the full equity injection and standby rules, sit on the SBA loan to buy a business pillar, and if the buyout is structured as an asset purchase rather than an interest transfer, the tax split across the seven asset classes is set out on purchase price allocation and Form 8594.

The SOP 50 10 8 equity injection provisions in this article are taken from Michelle Sergent Kaas of Starfield & Smith, dated 6 May 2025, and corroborated by Windsor Advantage, dated 28 July 2025, because the SBA does not publish the SOP in a form automated tools can retrieve. The 1 October 2026 changes are as described by Jeffrey Bardos of Speritas Capital on 27 August 2026. The prime rate was read from the Federal Reserve H.15 release on 2 September 2026. Requirements are applied by your lender, not by this page, and nothing here is lending, tax or legal advice.