The short answer: SBA 7(a) can fund a partial buyout, buying part of a business or buying out one partner, not just a full 100% purchase. The catch: under SOP 50 10 8, any seller who keeps 1% or more ownership after the sale must sign a full personal guarantee for at least two years. Owners of 20%+ give an unlimited guarantee the whole time they hold that stake. That single rule is why most buyers either take the seller to 0% or plan carefully for the two-year overlap. See the personal guarantee guide for the full picture.
What counts as a partial buyout
A full change of ownership is the classic deal: you buy 100% of the business and the seller walks away. A partial change of ownership is anything less than that, you buy a majority stake, buy out one of two partners, or bring in the seller as a minority owner going forward. The SBA 7(a) program can finance both.
Two things stay true no matter what slice you buy: the transaction has to create a real, documentable change of ownership, and the buyer still has to inject the required equity, a minimum of 10% of the total project cost on a change-of-ownership deal.
The percentage you buy sets the price. The percentage the seller keeps sets the paperwork.
Seller equity rollover, explained
Equity rollover is when the seller doesn't fully cash out. Instead of taking all their proceeds in cash, they "roll" some of their value into an ownership stake in the new company. It's popular because it keeps the seller invested in a smooth transition, they still have skin in the game.
The trade-off is regulatory, not just financial. The instant a seller rolls equity and stays an owner, the SBA treats them as an owner, which triggers the guarantee rule below. So rollover isn't free: it buys you an aligned seller at the cost of a two-year guarantee entanglement.
The rule that shapes every partial deal
This is the single most important line in a partial buyout. Under the current SOP:
The seller-guarantee rule (SOP 50 10 8)
A seller who keeps any ownership of 1% or more after the sale must provide a full personal guarantee for at least two years. A seller (or anyone) who owns 20% or more going forward must give an unlimited personal guarantee for as long as they hold that stake.
| Seller keeps… | Personal guarantee required? | How long |
|---|---|---|
| 0% (full exit) | No guarantee from seller | |
| 1%, 19.9% | Yes, full guarantee | At least 2 years |
| 20% or more | Yes, unlimited guarantee | While they hold 20%+ |
Read that carefully: a seller who rolls just 1% of equity is on the hook for the entire loan for two years, the same as if they'd kept a much larger stake. The guarantee doesn't scale down with the ownership percentage.
How buyers structure around it
There's no trick that erases the rule, but there are clean ways to work with it:
Option 1, Take the seller to 0%
The simplest path. If the seller fully exits, they carry no ongoing SBA guarantee. You can still keep them close through a consulting agreement or a seller note on full standby, a note doesn't require them to remain an owner.
Option 2, Accept the two-year overlap
If keeping the seller as a minority owner genuinely helps the business, plan for the two-year full guarantee up front. Put it in the term sheet so nobody is surprised at closing, and give the seller a defined exit at the end of the window.
Option 3, Pair rollover with a standby note
A seller note on standby can carry up to 50% of your 10% equity injection while the seller still exits to 0% ownership. That gives you the seller's continued financial stake and lower cash-to-close without the ongoing guarantee that rollover equity creates.
A worked example
Say you're buying a $1,000,000 business and the seller wants to stay involved. Compare a clean full buyout against a 10% rollover.
| Item | Full buyout (seller 0%) | 10% rollover (seller keeps 10%) |
|---|---|---|
| You purchase | 100% | 90% |
| Purchase value financed | $1,000,000 | $900,000 |
| Your 10% equity injection | $100,000 | $90,000 |
| Seller personal guarantee | None | Full, 2 years |
| Seller stays invested? | Via note / consulting | Yes, as owner |
Rollover lowers the value you finance and keeps the seller aligned, but it hands them a full two-year guarantee and a seat at the table. For many first-time buyers, a full buyout plus a standby note is the cleaner trade. Run your own numbers in the SBA loan calculator and max purchase price tool.
Confirm the current SOP with your lender
SBA rules on partial changes of ownership are detailed and change with each SOP revision. The figures here reflect SOP 50 10 8 (effective June 1, 2025). Always confirm the exact requirements with your SBA lender before structuring a deal.
Structure the buyout before you make the offer
See the cash-to-close and payment under each structure.
Frequently asked questions
Yes. SBA 7(a) can finance a partial change of ownership, buying part of a business or buying out one of several partners. You still have to meet SBA eligibility, inject the required equity, and create a documentable change of ownership.
Yes. Under SOP 50 10 8, a seller keeping any ownership of 1% or more must give a full personal guarantee for at least two years. A seller keeping 20% or more must give an unlimited guarantee while they hold that stake.
Rollover is when the seller keeps a minority stake in the new company instead of cashing out fully. It keeps them invested in the transition, but because they stay an owner, it triggers the SBA rule requiring a full seller guarantee for at least two years.
The cleanest way is a full 100% buyout, so the seller owns 0% and carries no ongoing guarantee. If the seller must stay, plan for the two-year guarantee, or use a seller note on full standby so they stay financially invested without remaining an owner.
Sources
- Partial change of ownership, seller guarantee (1%+ for 2 years; 20%+ unlimited), and 10% equity injection, SBA SOP 50 10 8 (effective June 1, 2025); sba.gov loan programs.
- Personal guarantee thresholds and standby-note treatment, sba.gov 7(a) program; SBA Form 155; lender guidance (2025 to 2026).
