Residuals for Sale
Sell your ISO

Selling the whole business, not just the book.

A residual sale and an ISO sale are different animals. When you are selling the company (the team, the agent network, the production engine, the processor relationships) you need a process built for an enterprise, not a portfolio.

Get a confidential valuation

Residual sale or ISO sale?

If you are selling a stream of residuals, the value is the book. If you are selling the ISO itself, the value is the book plus everything that produces it: your sales force, your agent agreements, your technology, your brand, and your processor relationships. ISO sales are full M&A transactions, and they are core to 733Park, the boutique payments M&A firm behind Residuals for Sale. We will tell you honestly which path fits your situation and run the right process for it.

What buyers pay for

What makes an ISO worth more.

Quality and stickiness of the book

Low attrition, durable verticals, and portable merchant agreements. The healthier the book, the higher the multiple.

Ongoing production

A sales engine that keeps boarding new merchants is worth far more than a static residual stream. Buyers pay for momentum.

Clean financials and contracts

Documented residuals, processor agreements, and agent splits. The cleaner your paperwork, the faster and richer the deal.

Team and relationships

For a full ISO sale, the people, the agent network, and the processor relationships often carry real strategic value.

For the full M&A picture on payments companies, see 733Park's payments M&A practice and the 2026 guide to payments, ISO and merchant-portfolio M&A advisors.

ISO FAQ

Questions about selling an ISO.

How do I sell my merchant portfolio?
Start with a confidential conversation and a valuation. We position your portfolio, take it to a curated pool of vetted buyers in a competitive, auction-style process, manage the processor's first right of refusal and the diligence, and negotiate the best price and terms through close. You stay anonymous until a serious buyer is under NDA.
How do I sell my residuals for the most money?
Run a competitive process instead of taking the first offer. Buyers pay more when they know they are bidding against others. We bring the buyer pool, the comparable deals, and the leverage. On average our process adds 12 to 18 percent versus what owners get cutting their own deal, which more than covers our fee.
Can I sell my merchant residuals myself?
You can, but most owners get one or two offers and leave money on the table. We run an auction across the largest active buyer database we know of in payments, and we know how each buyer prices a book. The lift and the better terms typically more than cover our fee.
What is the first right of refusal and how does it affect my sale?
Most processor or ISO agreements give them one to two weeks to match an offer on the table. You do not want to trigger that right with a lowball number, because they will simply take the deal at that price. We structure the process and the offer so the first right of refusal works for you, not against you.
Do I need a lawyer to sell my residual?
We give you business guidance on the deal and the process. For legal questions, we connect you with payments-industry attorneys who handle the contract nuances, clawbacks, and non-solicit terms. Most residual and portfolio sales hinge on getting both the business and legal pieces right.

Thinking about selling your ISO?

Start with a confidential call. We will tell you what the market will pay, what would lift it, and how to run the process. Free and no obligation.

Get a confidential valuation