Case Studies / Animal Health and Pharmaceutical Manufacturing

Case Study

The $80,000 Gateway Upgrade That Unlocked $1.8 Million

The discount rate was competitive. The statement was clean. The processor was not stealing anything. And the company was still losing more than $1.8 million a year, because the gateway it paid the least for could not send the data that qualified its transactions for the lowest interchange rates.

Level 3 interchangeGateway data captureEnterprise B2BRate reduction

$1.84M

Annual Level 2 and Level 3 interchange recovered

2.87% to 2.31%

Effective rate, before and after

$3,000

Average ticket

$80,300

Added annual gateway cost we recommended

The business

A US animal health and pharmaceutical manufacturer processing roughly $425 million a year in card volume on a single merchant account, with an average ticket near $3,000. Sales ran through an enterprise resource planning system with an ecommerce storefront attached. Almost all of the volume was business to business: veterinary practices, distributors and clinics buying on commercial cards.

By every measure a merchant uses to check itself, this account looked healthy. The discount rate was 18 basis points, well inside the range a company this size should expect. The dues and assessments passed through correctly. Everything charged outside the discount rate came to $2,506 across the entire year, which on $425 million of volume rounds to nothing.

What everyone had already checked

This is the part worth sitting with. The finance team had done the responsible thing. They had benchmarked the markup, they had asked for interchange plus pricing, and they had gotten it. The one number every merchant is taught to negotiate had been negotiated well.

What the merchant believed

The 18 basis point markup was the whole negotiation
A clean statement with no junk fees meant a clean deal
The gateway was a commodity, so the cheapest one was the right one
Interchange is fixed and nothing can be done about it

What was actually true

Interchange itself was the cost, and interchange is set by the card networks, not the processor
Level 2 and Level 3 data qualifies commercial card transactions for materially lower interchange
The gateway in place could not enhance or pass that data
A $3,000 average ticket makes every downgraded transaction expensive

What the audit found

Seventy seven percent of the recoverable money had nothing to do with the processor’s markup. It was sitting in interchange. Commercial card transactions that should have cleared at Level 2 or Level 3 rates were clearing at higher categories, every day, because the required data was never being submitted with the authorization.

Level 3 interchange asks for line item detail: item descriptions, quantities, unit prices, product codes, freight and duty amounts, and a tax amount. When that data arrives, the card networks price the transaction as a low risk commercial purchase. When it does not, the same transaction is priced as though nobody knows what was bought. On a $3,000 ticket that difference is not a rounding error.

$1,842,343

Annual interchange recoverable through Level 2 and Level 3 optimization, on volume that was already flowing through a working, correctly priced merchant account.

The recommendation nobody expects

The fix required paying more, not less. The existing gateway cost roughly $60,000 a year. A gateway capable of capturing and enhancing Level 3 data cost $140,300 a year, an increase of $80,300.

We put that number on the page as a negative line item, in the same table as the savings. It is the single most common reason a merchant walks away from an interchange optimization project: the invoice they can see goes up, and the interchange they cannot see goes down. If an audit does not show you both sides, it is not an audit.

The arithmetic

Spend $80,300 more on the gateway. Recover $1,842,343 in interchange. Cut the discount rate from 18 basis points to 3. Net result: $2,402,049 a year, and an effective rate that falls from 2.87 percent to 2.31 percent.

The results

$1,842,343 in annual Level 2 and Level 3 interchange recovered
$637,500 in annual savings from the discount rate moving from 18 basis points to 3
$2,506 a year in residual charges outside the discount rate removed
$80,300 in additional annual gateway cost, disclosed and subtracted
$2,402,049 net annual savings
Effective rate reduced from 2.87 percent to 2.31 percent

Industry context

For merchants already on competitively priced interchange plus, interchange is commonly 80 to 90 percent of what card acceptance costs. It is set by the card networks, it is published, and it is updated twice a year. Merchants are told, correctly, that they cannot negotiate it. What they are rarely told is that they can qualify for a different category of it.

Commercial and purchasing cards carry interchange programs specifically designed for business to business purchasing, at rates well below the consumer categories. Qualifying for them is not a matter of negotiation or volume. It is a matter of submitting the data the networks ask for, at authorization, on every transaction.

The credit card processing industry is unregulated. No one is required to tell a merchant that it qualifies for a lower interchange program, that its gateway cannot reach it, or that the gap is costing seven figures a year. A processor earns its margin on the discount rate whether the transaction clears at Level 3 or at standard, so the incentive to raise the question does not exist.

Why this case matters

For a merchant already priced this competitively, the markup is the smallest part of the cost and the only part most merchants ever look at, because it is the only part printed as a negotiable number.

A company can win the markup negotiation completely and still lose a fortune, because the loss is not in a fee. It is in a rate category assigned automatically, transaction by transaction, based on data the merchant does not know is missing. The gateway is where that data lives or dies, and the gateway is almost always chosen on price.

The credit card processing industry is unregulated. Nobody is obligated to tell a merchant that the cheap gateway is quietly disqualifying every commercial transaction it touches.

How to check this on your own statement

1. Find your effective rate

Take every dollar the processor took last month, including everything charged separately, and divide it by your total card volume for that month. That single number is the only honest measure of what you pay. It will be higher than your discount rate, and the gap is the thing worth investigating.

2. Look for interchange categories on the statement

A disclosed statement lists interchange by category with counts and volumes. If yours does not, you cannot tell whether a single transaction is clearing correctly, and neither can anyone else. Ask for a fully disclosed statement in writing.

3. Compare your commercial volume against your Level 3 volume

If a meaningful share of your customers pay on business, corporate or purchasing cards, but almost none of your volume appears in Level 2 or Level 3 categories, the data is not arriving. That gap is your number.

4. Ask your gateway a direct question

Ask whether it captures and transmits line item detail, tax amount, customer code, product codes and freight at authorization. Ask for the answer in writing. A gateway that cannot do this is not cheap, it is expensive in a place the invoice does not show.

For what Visa changed in 2025 and 2026, and what the Level 3 rate is worth on a single invoice, see our Level 3 credit card processing guide.

Questions we get about this

Is it really worth paying more for a gateway?

It depends entirely on your average ticket and your commercial card mix. At a $3,000 average ticket with heavy business to business volume, as here, the answer is not close. At a $30 average ticket in consumer retail there is no Level 3 opportunity at all and the upgrade would be a waste. The audit is what tells you which one you are.

Our processor already told us we are set up for Level 3.

That is one of the most common things we hear, and the statement settles it. Level 3 is not a setting that is either on or off. It is a per transaction outcome, and transactions fail to qualify for many reasons: a missing tax amount, a missing customer code, a delayed settlement, a truncated product description. The interchange categories on the statement show what actually happened.

Do we have to change processors to fix this?

Frequently not. In many cases the processor stays and the gateway or the integration changes. Where a change is required, it is usually because the processor’s own gateway cannot pass the data, which is a fact worth establishing before anyone signs anything.

Is your gateway costing you more than it saves?

A weAudit audit reads your statements line by line and tells you exactly how much of your interchange is being lost to data your systems are not sending. There is no cost to find out.

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