SBA Loan Down Payment: How Much Do You Actually Need?

If you are relatively confident in the size of the loan, increase or start your coverage to the size of the loan.

That's a real buyer, mid-search, thinking about liquidity before going to the table. The instinct is right. Down payment planning is the kind of thing that needs to happen before the LOI — not after the lender asks where your money came from.

You Googled "SBA down payment" and found 10%. You built your liquidity plan around it. Here's what happens next: you sit across from an underwriter who wants to know where the money came from, how long it's been sitting there, whether a seller note is involved, and whether your collateral situation creates additional exposure.

The 10% is the floor in SBA SOP 50 10 8. What a specific lender requires on your specific deal depends on variables most buyers don't think about until underwriting. This is the conversation self-funded searchers usually get for the first time at the lender meeting — when it's too late to restructure cleanly.

The 10% Rule: What It Actually Means

Not a suggestion. A floor — and not the ceiling.

Under SBA SOP 50 10 8, every 7(a) business acquisition requires a minimum 10% equity injection from the borrower. Equity injection means cash or cash-equivalent funds that the buyer brings to the table — not borrowed, not gifted without documentation, not a bridge loan.

The 10% is calculated on the total project cost, which includes:

• The purchase price of the business
• Working capital the lender folds into the loan
• Closing costs, fees, and any lender-required reserves

On a $500K acquisition — as an example — the minimum equity injection is $50K. On a $1M deal, $100K. On a $2M deal, $200K. The percentage is fixed; the dollar amount scales with the deal.

What the SBA is doing with this requirement is ensuring the borrower has skin in the game. A meaningful personal financial stake that aligns the buyer's interests with the lender's. Deals with no buyer equity injection aren't eligible for SBA 7(a) financing. Full stop.

When Lenders Require More Than 10%

Goodwill-heavy deals and thin DSCR both trigger overlays.

The SBA minimum is a floor. Lenders set their own overlays on top of it, and those overlays show up most visibly in three situations.

1. Goodwill-heavy acquisitions

Service businesses — consulting, staffing, home services, professional practices — often have minimal hard assets. The purchase price is mostly goodwill: customer relationships, the brand, the owner's reputation. When business assets don't provide meaningful collateral coverage, the lender's exposure in a default scenario is almost entirely unsecured.

Here's what that looks like in practice: a buyer acquires a residential cleaning company for $750K. The business has a van, cleaning equipment, and a few computers — maybe $40K in hard assets. The remaining $710K is goodwill. If this business fails, the lender has almost nothing to recover against. They'll often require 15–20% equity injection as compensation for the collateral gap.

2. DSCR near the minimum

SBA's minimum DSCR is 1.15x. When a deal's coverage ratio is thin — 1.15x to 1.25x — lenders sometimes require a larger equity injection as a compensating factor. A bigger down payment reduces the loan amount, which improves the coverage ratio. It also signals commitment in a deal where the cash flow margin is narrow.

If you haven't modeled your DSCR from the tax return yet, check your coverage before you're committed to a deal structure. The down payment conversation and the DSCR conversation are linked — one affects the other.

3. First-time buyer risk profile

A first-time buyer with no prior business ownership, acquiring a business in an unfamiliar industry, at a DSCR near the floor, with a goodwill-heavy asset base — that combination produces lender overlays. Each individual factor might not trigger a higher injection requirement. The combination usually does.

How Seller Notes Change the Math

Full standby is the magic phrase. Learn it.

A seller note — where the seller agrees to finance part of the purchase price — can significantly affect the down payment structure. The key distinction is whether the seller note is on full standby or has scheduled payments.

Full standby: The seller note carries no principal or interest payments during the entire term of the SBA loan. The seller gets paid only after the SBA loan is repaid. A seller note structured this way can count toward the 10% equity injection requirement.

Not full standby: Any scheduled payments — even interest-only — disqualify the note from counting toward equity injection. From the SBA's perspective, a note with payments is debt, not equity. It increases the borrower's debt service and competes with the SBA loan for cash flow.

The practical implication: if a seller carries 5–10% on full standby, a buyer may close with significantly less cash out of pocket while still meeting SBA's equity injection requirement.

Example: A buyer acquires a business for $800K with a total project cost of $850K. The SBA minimum equity injection is $85K. If the seller agrees to carry $85K on full standby, and the lender accepts the structure, the buyer's cash requirement drops accordingly. The SBA loan covers the remaining 90%.

A few things to know before you negotiate this:

• The full standby requirement must be explicit in the seller note agreement — not implied
• The SBA lender must approve the structure before closing
• Not all sellers will accept full standby; some negotiate partial standby or interest-only, which changes whether it counts
• A standby note still affects how lenders analyze the overall deal structure

For context on how DSCR interacts with deal structure, see how lenders calculate DSCR requirements.

The 90-Day Seasoning Rule

The paperwork gotcha that catches buyers mid-deal.

SBA lenders require that equity injection funds have been in the borrower's account for at least 90 days before closing. This is called the seasoning requirement.

The reason it exists: without it, a buyer could take a personal loan or cash advance, park it in a checking account for two weeks, and present it as personal savings. The 90-day window makes that impossible. Funds that arrived fewer than 90 days before closing get scrutinized — the lender will ask where they came from, and "personal loan" ends the conversation.

What counts as seasoned:

• Personal savings and checking accounts with 90+ day history
• Investment and brokerage accounts
• Retirement funds — with important caveats (ROBS structure, tax implications)
• Proceeds from a prior home sale or real estate transaction, if documented
• Gift funds from immediate family — with a signed gift letter, documentation of the donor's capacity, and 90-day seasoning in your account

What doesn't count:

• Personal loans in any form
• Cash advances
• HELOC funds drawn specifically for this purpose
• Crypto converted to cash shortly before application (high scrutiny, case-by-case)

If you're planning to liquidate retirement funds or accept family gifts, do it early. The 90 days starts from when the funds land in your account — not from when you apply.

What Source-of-Funds Verification Actually Looks Like

This is not a checkbox. They are reading every page.

The lender verifies the equity injection source as part of underwriting. This is an actual documentation review — every large deposit in the 90-day window gets a question.

Standard source-of-funds documentation:

• 90 days of personal bank statements for every account contributing to the injection — full statements, every page, no gaps
• Investment account statements if using brokerage or retirement funds (typically 3 months)
• Gift letter if any portion came from a family member — donor's name, relationship, amount, and explicit statement that it's a gift and not a loan
• Supporting documentation for any large deposits that appear in the 90-day window

If your statements show a $50K deposit from 45 days ago and you can't document where it came from, that amount likely won't count toward your equity injection. Plan the timing of fund movements before you're deep in an active deal — not during closing week.

The Lien on Your Home: What It Actually Means

Standard procedure. Not a red flag. Plan accordingly.

SBA 7(a) requires lenders to take all available collateral on business acquisition loans. The collateral priority:

1. Business assets — equipment, furniture, fixtures, inventory, accounts receivable
2. Personal real estate — typically a lien on the borrower's primary residence or investment property

For asset-light businesses, business collateral rarely covers the full loan. If the loan is $800K and the business has $60K in hard assets, there's a $740K gap. The lender looks to personal real estate to help cover it.

If you own a home with equity, expect the lender to request a lien as a condition of closing. This is not a dealbreaker or a sign the deal is shaky. It's the standard mechanism SBA 7(a) uses to secure acquisition loans where the business asset base is thin. The program is designed this way.

What this does not mean:

• The lender doesn't foreclose the moment you have a bad quarter
• You don't automatically lose your home if the business struggles
• Constructive communication with the lender matters in a workout scenario

What it does mean: the lender has legal recourse in a true default. That's why underwriting exists — to verify the deal cash flows before anyone writes the check. The lien is the consequence of that system working correctly, not incorrectly.

What to Prepare Before You Submit a Financing Package

The deals that close on time did this before the LOI.

Getting equity injection documentation right before you go to a lender speeds up underwriting and removes the most common source of last-minute closing surprises.

Pre-submission checklist:

• Identify your equity injection source — savings, investment accounts, family gift, or seller note
• Verify all funds have been in your accounts for 90+ days (or will be by closing)
• Pull 90 days of bank statements for every contributing account — full statements, every page
• If using investment accounts, confirm the liquidation timeline and any tax implications
• If using a family gift, draft the gift letter now and confirm the donor can document their capacity
• If structuring a seller note, confirm full standby terms before you negotiate it into the LOI
• Model DSCR from the tax return to understand whether the lender will require more than 10%
• Confirm whether your personal real estate will be required as collateral — and what equity is available

The deals that close on time are the ones where the buyer understood their financing picture before the LOI. The ones that fall apart at closing usually trace back to a liquidity assumption that was never stress-tested against what the lender actually requires.

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