There is no single answer to who buys merchant portfolios, and anyone who gives you one is guessing. Processors buy them. So do larger ISOs, residual aggregators, private equity backed payments platforms, software companies, private investors and other ISO owners. The same buyer will pay up for one book and pass on the next, because what they are buying for changes with their own situation. Residuals for Sale, the merchant portfolio and residual marketplace of 733Park, keeps what we believe is the largest active buyer database for residuals, merchant portfolios and ISOs, and the buyer who pays the most is often not the one the seller expected.
Who is buying
These are the kinds of buyers in the market. It is a list, not a ranking, and it is not complete.
- Processors and acquirers
- Larger ISOs and super ISOs
- Residual aggregators, whose business is owning residual streams
- Private equity backed payments platforms
- Software and fintech companies adding payments
- Private investors looking for recurring income
- Other ISO owners and agents adding to their own book
- Banks, occasionally
Why they buy
The mistake is assuming each kind of buyer wants one thing. They do not. Any of these reasons can belong to any buyer on that list, and most buyers have more than one.
- Scale. More volume over a platform and a staff they already pay for.
- Keeping merchants they already process. A processor or an ISO above you may pay to keep a book from moving.
- Production. Agents and a sales engine they cannot build fast enough on their own.
- Income. A residual stream is recurring cash, and some buyers want exactly that and nothing else.
- A vertical or a region. A buyer building a position in one industry or one market pays more for the book that gets them there.
- A processor or bank relationship. More volume where they want better terms, or a relationship they do not have yet.
- Something to sell your merchants. Software, a gateway, a new pricing program.
- A clock. A platform that has raised capital has to put it to work, and a platform preparing for its own sale wants growth on the books.
Why the same buyer says yes to one book and no to the next
A buyer's appetite is not fixed. It moves with how much capital they have, what they bought last quarter, which processor they are leaning into and what their own investors want this year. The buyer who passed on a book like yours in the spring can be the high bidder in the fall. That is why a list of who bought what last year is a poor guide to who will pay the most for your book now.
What your book brings to it
The other half is the book itself: its size, its attrition, whether the contracts transfer, the processor it sits on, the merchant mix and whether new production comes with it. Each of those matters differently to each buyer. A book on one processor is exactly what a buyer growing on that processor wants, and a non-starter for a buyer who cannot board on it. What buyers check is in what buyers look for in a merchant portfolio.
Size changes the pool too. 25,000 to 100,000 dollars a month in net residual draws the deepest pool of buyers. Larger books draw more competition. Smaller books still sell, to a narrower pool. In 2026 merchant residual portfolios are selling for 28x to 55x net monthly residual, and the table by profile is in residual buyout multiples in 2026.
Do banks buy merchant portfolios?
Occasionally. A bank with its own merchant program will sometimes buy back a book that already runs on that program, but over the years banks have more often been sellers of merchant portfolios than buyers. If a bank sits somewhere in your chain, it may hold a right of first refusal, and it is one bidder, not the market.
What about private equity?
Private equity is in this market mostly through the payments platforms it owns, and those platforms buy portfolios and ISOs. Their reasons come from the same list as everyone else's, usually with a clock attached.
So how do you find the right buyer?
You do not pick the buyer. You let the buyers pick themselves. Put the book in front of the right mix, under NDA, on one timeline, and the buyer with the strongest reason this quarter shows up with the strongest number. A competitive process typically adds 12 to 18 percent over a single-buyer deal, and everything above is why: you cannot know in advance who wants your book most. The comparison with selling to one buyer is in broker or direct buyer: who pays more for your residuals.
If you own a whole ISO or a payments company and not just a book, the buyer list and the yardstick are different again. 733Park covers that side in Who Buys ISOs and Merchant Portfolios.
Frequently asked questions
Who buys merchant portfolios?
Processors and acquirers, larger ISOs and super ISOs, residual aggregators, private equity backed payments platforms, software and fintech companies, private investors and other ISO owners. Each buys for different reasons, and those reasons change over time.
Who pays the most for a merchant portfolio?
The buyer with the strongest reason to own your particular book right now. That depends on their situation as much as on your book, which is why the best buyer is found by competition and not by guessing.
Do banks buy merchant residual portfolios?
Occasionally. A bank with its own merchant program may buy back a book that already runs on it, but banks have more often been sellers of merchant portfolios than buyers.
Do private equity firms buy merchant portfolios?
Mostly through the payments platforms they own. Those platforms buy portfolios and ISOs for scale, production and growth, often on a timeline set by their own investors.
Who buys small merchant portfolios under 10,000 dollars a month?
Residual aggregators, other ISO owners and agents, private investors, and sometimes the ISO above you. The pool is narrower for small books, but they sell.
Is 2026 a good time to sell a merchant portfolio?
It has been a strong seller's market, with active buyers of every size. The better question is whether it is a good time for your book: improving attrition and clean contract rights sell well in almost any market.
Want to know who would pay the most for your book right now? Start with the free Residuals for Sale portfolio valuation calculator, then talk to us confidentially. The first conversation is free.