Equity Injection: What It Means for Business Buyers

What Is Equity Injection?

The distinction between "equity injection" and "down payment" matters more than it sounds.

A down payment implies you pay cash out of pocket and the lender covers the rest. An equity injection is a capital adequacy test. The SBA wants to know that you have skin in the game and that the deal is not 100% leveraged. How you meet that 10% threshold is more flexible than most buyers realize, but at least half of it has to be real, non-borrowed cash.

Total project cost is the purchase price plus closing costs, working capital, and any other completion costs, not just the headline price or the loan amount. On a $500,000 project, the equity injection is $50,000. On a $1,000,000 project, it is $100,000.

What Counts as Equity Injection

The SBA accepts several sources toward the 10% equity injection requirement.

Cash. Buyer's own liquid funds. This is the most straightforward. Bank statements will document the source.

ROBS (Rollover as Business Startups) or 401(k) rollover. Retirement funds rolled into a C-corp that then invests in the business. This counts as equity, not a loan, because you are not borrowing money. There is a specific IRS-compliant structure required. Not every acquisition uses this, but it is a legitimate path.

Gifted funds. Cash gifts from family members, with proper documentation. The donor cannot be repaid, which the SBA verifies through a gift letter.

Seller note on full standby. A seller note counts toward the injection only when it is on full standby for the entire life of the SBA loan, meaning the seller receives no principal and no interest during the term, typically 10 years. Under SBA SOP 50 10 8 (effective June 1, 2025), that standby note can cover at most 50% of the required injection, which is 5% on a 10% requirement. A note not on full standby contributes zero equity.

This is why the structure caps out at 5% cash and 5% standby note. The cash half cannot be replaced by the note, because at least 5% of total project cost has to be genuine non-borrowed cash. According to Regalis Capital's deal team, full standby seller notes at 0% interest are achievable on over 90% of properly structured deals, which lets buyers meet the requirement with only 5% cash out of pocket.

What Does NOT Count as Equity Injection

The SBA is specific about what it will not accept.

Borrowed money generally does not count unless you can document an outside repayment source. Under SBA SOP 50 10 8 (effective June 1, 2025), a HELOC or other borrowed funds can only count if repayment comes from a source other than the business cash flow, and that source has to be documented. Personal loans need the same outside repayment source. The SBA will ask for 3 to 6 months of bank statements to verify that funds are seasoned and not a recent loan deposit.

A seller note on partial standby contributes zero equity. The note must be on full standby, no principal and no interest, for the life of the SBA loan. If the seller receives any payment during the term, the note fails the standard and counts as debt, not equity.

How the 5/5 Structure Works in Practice

The clean Regalis Capital deal structure looks like this:

• 90% SBA 7(a) loan
• 5% buyer cash equity injection
• 5% seller note on full standby acting as equity

Those three layers sum to 100% of the deal. The 5% buyer cash and the 5% full-standby seller note together make up the 10% equity injection. The seller note shown here is the 5% piece that counts as equity, not a separate larger carry.

If a seller carries more than 5% (for example a 15% carry that helps bridge the gap to the purchase price), only the first 5% on full standby can count toward the equity injection. Anything above that 5% is separately negotiated subordinate debt. It earns zero equity credit, and if it is not on full standby it adds payments to debt service.

The table below shows the clean structure at three different acquisition prices. These are illustrative examples based on current SBA deal structures as of Q1 2026.

These are rough estimates based on current market data. Actual terms depend on individual qualification, lender, and deal structure.

The $300,000 acquisition requires only $15,000 in cash from the buyer. The $1,000,000 acquisition requires $50,000 in cash. This is why SBA acquisitions are structurally different from buying real estate or raising private equity.

How Does Equity Injection Apply to SBA Acquisitions?

Based on Regalis Capital's analysis of recent acquisitions, the equity injection structure is the single most misunderstood element of SBA deal mechanics. Most first-time buyers assume they need to bring 20% to 30% cash to close. The 5% cash plus 5% standby seller note structure changes the math considerably.

Here is how the equity injection fits into a full deal stack at a $500,000 acquisition price:

The SBA lender provides $450,000 at approximately 10% to 11% interest on a 10-year term (based on current rates, which move with WSJ Prime). The seller agrees to a $25,000 note on full standby at 0% interest, which counts as the 5% equity portion. The buyer brings $25,000 in cash. Together the cash and the standby note make up the $50,000 equity injection.

Annual debt service on the $450,000 SBA loan at current rates runs approximately $70,000 to $73,000. For this structure to hit the target 2x DSCR, the business needs to generate roughly $140,000 to $146,000 in annual cash flow. At a 1.5x floor, the minimum acceptable cash flow is around $105,000 to $110,000.

The seller note on full standby adds no debt service pressure during the SBA loan term because no payments are made. This is why the full standby structure is not just convenient, it directly improves DSCR math.

Related Terms

Understanding equity injection requires knowing how it fits into the broader SBA deal structure.

SBA 7(a) Loan is the financing vehicle that the equity injection requirement applies to. The 10% injection is an SBA rule, not a lender preference.

Seller Note on Full Standby is the mechanism that lets buyers use a portion of the seller's deferred payment as equity. Understanding how standby works is essential before structuring any SBA deal.

DSCR (Debt Service Coverage Ratio) is directly affected by whether the seller note is on standby. A seller note with active payments increases debt service and reduces DSCR. Full standby removes those payments from the calculation entirely.

Frequently Asked Questions

Can a seller note on full standby replace all 10% of the equity injection requirement?

No. Under SBA SOP 50 10 8 (effective June 1, 2025), a standby seller note can cover at most 50% of the required injection, and at least 5% of total project cost must be genuine non-borrowed cash. The standard structure is 5% buyer cash plus a 5% seller note on full standby. A deal with zero buyer cash does not meet the standard.

Does the equity injection amount change if I am buying a partial stake in a business?

Yes. The equity injection is calculated based on the total acquisition cost, not the enterprise value. If you are buying 100% of a business for $750,000, the injection is $75,000. If you are buying a partial stake for $300,000, the injection is $30,000. The 10% rule applies to what you are paying, not what the whole business is worth.

What happens to the seller note acting as equity after the SBA loan is paid off?

The seller note becomes payable once it is no longer required to remain on standby. After the 10-year SBA loan term ends, the buyer and seller can negotiate repayment terms for the outstanding note balance. At 0% interest with no payments during the standby period, the note balance stays flat for the full term. This is one reason sellers sometimes push back on long standby periods, and why structuring this correctly from the start matters.

Talk to Regalis Capital About SBA Equity Injection

If you are working through the math on an acquisition and trying to figure out what you actually need to bring to closing, this is exactly what our deal team works through every week.

Regalis Capital reviews upwards of 20,000 deals a month. We know which lenders accept which equity sources, how to negotiate full standby seller notes, and how to build a deal stack that works on both sides of the table.

Start with a free deal assessment at Regalis Capital to run the numbers on a specific acquisition target.