Level 2 and Level 3 Processing: How B2B Sellers Cut Card Costs
By Yan Payments
What are Level 2 and Level 3 processing data?
If you invoice other businesses and they pay with a corporate or purchasing card, sending extra transaction data, tax amount, a PO or customer reference number, and for larger sales, line-item detail, can qualify that transaction for a meaningfully lower interchange rate. Most contractors and B2B sellers who’d qualify never see the discount, simply because their payment setup never sends the data in the first place.
Why do card networks give a discount for this data?
Visa and Mastercard want commercial cards, the corporate and purchasing cards businesses issue to their own buyers, to replace paper checks and wire transfers for B2B purchasing. To make that attractive to the buyer’s side, the networks reward sellers who submit richer transaction data with a lower interchange rate, because that data is exactly what the buyer’s accounting and procurement systems need anyway to post the purchase, match it to a PO, and track tax. You’re not doing extra work for no reason, you’re submitting information a corporate buyer’s AP department already wants, and getting paid to do it in the form of a lower rate.
What do Level 2 and Level 3 actually mean?
Level 1 is a standard retail-style swipe or online transaction: card number, amount, date. This gets the highest interchange rate.
Level 2 adds a small set of fields: tax amount, a customer code or PO number, and the merchant’s postal code. This is often described as corporate card or purchasing card data.
Level 3 adds full line-item detail: product or service codes, quantities, unit of measure, unit price, and freight or duty/discount amounts. This is the richer tier and generally unlocks the largest discount, but it also requires the most integration work, since it needs itemized invoice data flowing into the transaction, not just a total.
A transaction only qualifies for the discount if several things line up at once: the card itself has to be a commercial (corporate or purchasing) card, not a standard consumer credit card, the transaction has to be set up to carry the extra fields, and your processor and point-of-sale or invoicing system actually have to support sending that data. American Express generally only supports Level 2 enhanced data, not full Level 3, so expect the biggest savings on Visa and Mastercard commercial cards specifically.
How much can Level 2/3 processing actually save?
Estimates vary by processor and card mix, which is normal for interchange since the actual rate depends on card type, transaction size, and how the data is submitted. As a rough range, Level 2 data typically shaves somewhere around half a percentage point off the rate versus standard commercial card pricing, and Level 3 can save a percentage point or more on top of that, depending on the card brand and your processor’s specific program.
A rough worked example: say you’re a wholesale supplier doing $40,000 a month in sales to business customers paying by corporate purchasing card.
| Scenario | Effective rate | Monthly cost on $40,000 |
|---|---|---|
| Standard (Level 1) | approx. 2.6%-3.0% | approx. $1,040-$1,200 |
| With Level 2/3 data | approx. 1.8%-2.3% | approx. $720-$920 |
That’s roughly $150-$400 a month in savings. These numbers will move around based on your actual card mix, how many of your B2B customers pay with corporate/purchasing cards versus personal cards or ACH, and what your processor’s specific commercial-card program looks like. The point isn’t the exact figure, it’s that for a business doing meaningful B2B card volume, this is real money that most sellers simply aren’t capturing.
Why do most eligible businesses never get the discount?
The data has to travel through the entire chain: from your invoice or order system, through your point-of-sale or payment gateway, to the processor, to the card network. If any link in that chain doesn’t pass the extra fields along, the transaction settles at the standard rate even though the card itself would have qualified for the discount. This is the actual, common failure mode: a business with every qualifying ingredient, the right card types, the right customers, still pays Level 1 rates because nobody configured the integration to send tax amount, PO numbers, or line-item detail.
A short checklist for B2B sellers
- Do you know what share of your B2B sales are paid with corporate or purchasing cards versus personal cards, ACH, or check?
- Does your current point-of-sale, gateway, or invoicing system support submitting Level 2 data (tax amount, customer code) automatically?
- If you sell itemized goods or services with meaningful ticket sizes, does your system support full Level 3 line-item data, or would that require a new integration?
- Have you asked your processor directly whether your account is set up for Level 2/3 qualification, rather than assuming it happens automatically?
How do you get Level 2/3 processing set up?
This generally isn’t something a merchant can turn on alone; it depends on your point-of-sale or invoicing software supporting the data fields and your processor’s program supporting the submission. If you invoice B2B customers through our invoicing tool (/invoicing), that’s a natural point to check whether your transactions are qualifying for enhanced data rates or leaving savings on the table. Worth a conversation with a payments specialist (/#cta) if you haven’t checked this in a while, since processor programs and qualification rules do change.
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