Key takeaways
- Under SOP 50 10 version 8.1, effective October 1, 2026, the minimum equity injection on an Initial Acquisition is 10 percent of total project cost, and the lender may not reduce or eliminate it.
- Total project cost is more than the price, so finish the sources-and-uses schedule, with working capital, closing costs and lender fees, before calculating the injection.
- Under version 8.1, seller debt subordinated to the lender and on full standby for the term of the 7(a) loan, other full-standby debt, and non-controlling minority equity below 20 percent may together provide no more than half of the injection.
- Under version 8.1 the lender orders the business valuation from an accredited independent source unless the business purchase price is $350,000 or less, and adds a Quality of Earnings report on an Initial Acquisition or Business Expansion at $3 million or more.
- Move the injection into one account at least 2 months before applying and leave it there; funds a lender cannot trace are a common reason an otherwise sound file is declined.
The equity injection is the buyer's own verified contribution to a financed business purchase, required by the SBA program as a percentage of total project cost.
What is the SBA 7(a) equity injection?
The equity injection is the money the buyer brings to the closing table that is not borrowed against the business. SBA requires it on a complete change of ownership because a buyer with nothing of their own in the deal has nothing to lose by walking away from it, and the guarantee the agency stands behind is priced on the assumption that the buyer stays.
Under SOP 50 10 version 8.1, the program's origination rulebook effective October 1, 2026, the minimum injection on an Initial Acquisition is 10 percent of total project cost, and the lender cannot reduce or eliminate it. An Initial Acquisition is a purchase that makes someone the majority or largest owner who was not already an owner of the business, or who has worked in it for fewer than 24 months, which describes almost every first-time buyer. Total project cost is not the purchase price. Version 8.1 defines it as all costs required to become operational, regardless of the source of funds, except lines of credit and 504 loans: the price plus the working capital, closing costs, lender fees, and any equipment or improvements the deal needs, which is why the sources-and-uses schedule has to be finished before the injection can be calculated.
The 10 percent is a program floor. A lender may require more on a thinner file, a riskier industry, or a first-time buyer, and many do. The SBA 7(a) requirements for buying a business explain the difference between a program rule, a condition of the specific deal, and a lender's own credit policy, and the injection is the place that difference costs the most.
Where can the injection come from?
From the buyer, in a form the lender can verify. Seasoned funds in the buyer's own accounts are the simplest source: money that has sat in one place long enough that the statements show it was not borrowed the week before. Gifts work when the giver documents that the money is a gift and shows the capacity to give it. Home equity works when the repayment of that borrowing does not depend on the business being bought. Retirement funds can be used through a rollover structure that has its own rules and its own advisers.
What does not work is a promissory note from a friend, a gift letter with no bank statement behind it, or money that appears in the account the month of the application. The lender has to keep evidence of the source, and an injection that cannot be traced is one of the common reasons an otherwise sound file is declined.
The practical rule is simple. Move the injection into one account at least two months before you apply, and then leave it alone.
Can a seller note count toward the injection?
Yes, within limits. Under SOP 50 10 version 8.1, a seller note that is subordinated to the lender and on full standby for the term of the 7(a) loan can count toward the required injection. Seller notes, other standby debt, and equity from investors holding less than 20 percent are limited sources, and together they may supply no more than half of it. Full standby means the seller receives no principal and no interest on the note until the SBA loan is repaid. A note that pays the seller monthly is not on standby and does not count, however it is labelled.
That rule changes the negotiation. A buyer who needs a seller note to reach the injection has to have the standby terms agreed in the letter of intent, because a seller who signs a purchase agreement expecting payments and is asked at closing to sign a standby agreement has every reason to refuse. The seller standby note page covers what the seller is being asked to give up and how to make that ask early.
How does the injection interact with the rest of the stack?
The injection is one layer of the capital stack described in the financing guide. The order in a typical file is the buyer's cash, then the seller note on standby if there is one, then the senior 7(a) loan for the balance. The lender sizes its loan on the coverage the business shows, not on what is left after the other layers, so a buyer who assumes the lender fills whatever gap remains is usually surprised.
Run the numbers in that order. Start with the coverage the business can support after a real owner salary, size the senior loan to that, decide what the seller will carry on standby, and only then read off what the injection has to be. If the injection that falls out is more than you have, the price is the problem, not the lender.
What changes on October 1, 2026?
SOP 50 10 version 8.1 takes effect that day and replaces version 8, which also set 10 percent with the same half limit on a standby seller note. Two things change for a buyer. The 10 percent is fixed for an Initial Acquisition, while a lender may reduce it for an existing business buying another in its industry group or for a buyout between existing owners. And if the price exceeds the business valuation, the difference has to be made up with equity. The valuation comes from an accredited independent source the lender engages, except that the lender may value the business itself when the business purchase price is $350,000 or less and buyer and seller are not closely related. SBA Information Notice 5000-880695 applies version 8.1 to applications issued an SBA loan number on or after October 1, 2026, and keeps version 8 for applications submitted through September 30, 2026, so a file already in process should get the lender's answer in writing.
What should a buyer do about the injection this week?
Three things. Finish the sources-and-uses schedule, because the injection is a percentage of a total that does not exist until the schedule does. Move the cash into one account and stop touching it. And write the standby terms into the letter of intent if a seller note is part of the plan, so the seller agrees to the structure before anyone has spent money on lawyers.
Then run the whole structure through the debt coverage check with your own salary in it. The injection buys you the loan. Coverage is what lets you keep the business.
Questions people ask next
Is the equity injection the same as a down payment?
Close, but it is measured on total project cost rather than on price, so it includes the working capital, closing costs, and fees the loan funds. A buyer who calculates 10 percent of the price alone will be short.
Can I borrow the equity injection?
Only from a source whose repayment does not depend on the business being bought, such as a home equity line with an outside repayment source, and only with documentation. Money that appears in the account the month of the application, or a promissory note from a friend, does not work.
Can a gift count?
Yes, when the giver documents that it is a gift and shows the capacity to give it. A gift letter alone, without the giver's statements, is not enough for the lender's file.
Does the rule change on October 1, 2026?
It may. SBA lists SOP 50 10 version 8.1 as effective that day, and the equity and seller note rules are among those most likely to move. Confirm the governing version with the lender in writing.
Sources
- SBA SOP 50 10, Lender and Development Company Loan Programs (versions 8 and 8.1) Primary source. Read 2026-09-08.
- SBA 7(a) loans program page Primary source. Read 2026-09-08.
- Official Business Doctor, SBA 7(a) loan requirements for buying a business Secondary source. Read 2026-09-08.
Program rules on this page were checked against SOP 50 10 version 8.1 with Technical Policy Updates, published 2026-09-25, effective 2026-10-01 on 2026-10-05 and are current through 2026-12-21. Confirm the version that governs your application with the lender.
About the author
Dr. Matty Herrera
Dr. Matty Herrera is the founder of Official Business Doctor. He writes and teaches from direct experience buying a business with cash, financing one with an SBA 7(a) loan, founding one, operating two locations with five retained employees, improving the operation, and later exiting at more than twice his equity.