Visa

Also called Visa Inc., Visa Network, VisaNet

The largest card network. Visa doesn't lend you money or hold your merchant account, it sets the rules and moves the transaction.

What it is

Visa is a payment network, not a bank and not a lender. It operates VisaNet, the switching infrastructure that carries an authorization request from your terminal to the bank that issued your customer's card and carries the approval back. Visa does not issue cards, does not extend credit, and does not hold your merchant account. Banks do those things. Visa writes the rulebook everyone else follows and charges assessments and network fees on volume that runs across its rails. Critically for a merchant, Visa also sets interchange rates — the largest single component of what you pay to accept a card — but Visa does not keep interchange. Interchange goes to the bank that issued the card. Visa keeps its assessments (historically in the neighborhood of 0.13%–0.15% of volume, per industry rate analysis) plus per-transaction network access fees. This distinction matters because it determines who you can actually negotiate with: not Visa, and not the issuer, but your processor's markup on top of both. Visa also runs the Third Party Agent registration program that governs every ISO, payment facilitator and service provider touching its network. Visa's own published FAQ puts ISO and PayFac registration at $5,000 initially and $5,000 annually, requires that a sponsoring Visa client (not the agent) submit the registration, and sets fines starting at $10,000 per unregistered agent. In 2026 Visa is also pushing hard into agentic commerce with Visa Intelligent Commerce, and agreed to acquire behavioral-fraud firm BioCatch for $2.4 billion.

Why it matters to your business

Almost every dollar you take by card touches Visa's rules, and almost none of what you pay goes to Visa. When a salesperson says "we got you a better Visa rate," they are almost always talking about their own markup, because interchange is published and identical for everyone at the same card type and MCC. Knowing that one fact turns a vague pricing conversation into a specific one. The 2026 settlement also handed you a lever you probably aren't using: the expanded right to steer customers toward cheaper payment types and to decline certain premium and commercial cards. In Florida, where surcharging and dual pricing are both legal, that lever is worth real money on thin-margin tickets.

Where it gets contested

Visa's core fight is interchange. Merchants have argued for two decades that Visa and Mastercard, as networks setting default rates on behalf of thousands of issuing banks, function as a price-setting mechanism that merchants cannot opt out of. That litigation produced the long-running interchange settlement, which Judge Brian Cogan approved in revised form on June 9, 2026: a 10 basis point reduction for five years, a 1.25% cap on standard consumer credit rates for eight years, and expanded merchant rights to decline certain premium and commercial credit cards and to surcharge or discount to steer customers. Roughly 12 million merchants are covered; appeals to the Second Circuit were expected. Visa's counterargument, which is not frivolous, is that interchange funds the issuing side of the system — fraud losses, rewards, credit risk, and the guarantee that a merchant gets paid on an approved transaction even when the cardholder never pays their bill. Merchants who love acceptance rates and hate acceptance costs are asking for two things that trade off against each other. The honest 2026 read for a small merchant: the settlement's rate relief is real but modest against an average Visa/Mastercard merchant fee of roughly 2.35% in 2024. The more valuable part of the settlement is the steering and category-acceptance rights, which most small merchants have not yet operationalized.

How to check it yourself

Pull your last full merchant statement and find the section labeled "assessments," "network fees," or "dues and assessments." Those are Visa's actual revenue from you — usually a rounding error next to interchange and your processor's markup. Everything above interchange plus assessments is negotiable. Circle it.

Receipts

Claims above that are checkable, with where to check them. Published so you do not have to take anyone's word for it.

Visa's Third Party Agent program charges $5,000 initial and $5,000 annual registration for ISOs and payment facilitators, only a Visa client can register an agent, and fines for using an unregistered agent start at $10,000
usa.visa.com ↗
Judge Cogan approved the revised Visa/Mastercard interchange settlement on June 9, 2026, with a 10 bps reduction for five years, a 1.25% cap for eight years, and expanded rights to decline certain cards and to surcharge
paymentsdive.com ↗
Visa agreed to acquire fraud-prevention firm BioCatch for $2.4 billion in 2026
pymnts.com ↗