By Rachel Morgan, commercial-card payments analyst with 9 years of interchange and B2B processing experience
Last reviewed: July 30, 2026
Finix supports enhanced transaction data that can lower interchange on eligible United States business and government card payments. Visa stopped accepting Level 2 data for lower rates on April 17, 2026, so Visa savings now require valid Level 3 data. Mastercard continues supporting both Level 2 and Level 3 processing. This independent guide is not operated by or affiliated with Finix.
Adding extra fields does not guarantee a lower rate. The merchant, card, transaction and submitted data must all qualify under the applicable network program.
What are Level 1, Level 2 and Level 3 payments?
The levels describe how much commercial information accompanies a card transaction.
A normal consumer checkout usually contains enough information to authorize the payment but little detail about the underlying purchase. Business and government buyers often need invoice, tax and item-level information for purchasing controls and reconciliation.
| Processing level | Information submitted |
|---|---|
| Level 1 | Standard card and payment information |
| Level 2 | Summary business data, such as tax and customer reference |
| Level 3 | Detailed invoice, shipping and line-item information |
Finix describes Level 2 as enhanced summary data and Level 3 as the most detailed form, with Level 3 offering the lowest potential interchange category for qualifying transactions.
Level 3 information can include product descriptions, product codes, quantities, unit prices, freight amounts and other invoice-level details.
This does not mean the merchant should invent fields to make a payment appear more detailed. Visa’s current commercial-data program validates whether the information is accurate, complete and meaningful.
Real data qualifies. Placeholder data can cause downgrades.
Which Finix merchants can use Level 2 or Level 3?
Finix limits the feature to eligible merchants located in the United States. The merchant must be enabled for Level 2 and Level 3 processing, and the lower-rate treatment is intended for business-to-business and government transactions.
The card must also be eligible.
Finix’s current guide says corporate, business or purchasing cards are required to receive Level 2 or Level 3 interchange benefits. Consumer cards do not become commercial cards merely because the buyer enters a company name or purchase-order number.
A practical eligibility sequence is:
- The merchant is based in the United States.
- Finix enables enhanced-data processing for the merchant.
- The buyer uses an eligible commercial card.
- The transaction is a qualifying B2B or government purchase.
- The required data is transmitted correctly.
- The card network assigns the applicable interchange category.
Failing one step can leave the payment at an ordinary interchange rate.
Finix also says Level 2 and Level 3 processing is available only in the live environment. It cannot be fully tested through the normal Finix sandbox environment.
Developers can test their request construction internally, but the actual card-network qualification must be validated after live enablement.
What changed for Visa in 2026?
Visa retired Level 2 as a path to commercial interchange savings.
Finix’s technical guide states that Visa stopped accepting Level 2 data for lower interchange rates on April 17, 2026. Mastercard Level 2 remains supported.
Finix’s broader 2026 explanation describes Visa’s replacement framework as the Commercial Enhanced Data Program, or CEDP. Under that program, Visa commercial transactions need valid Level 3, also described as Product 3 data, to qualify for enhanced rates.
| Card network | Level 2 in 2026 | Level 3 in 2026 |
| Visa | No longer eligible for lower interchange | Supported |
| Mastercard | Supported | Supported |
| American Express | Finix’s article describes Level 2 support | Level 3 not supported in the cited program |
| Consumer cards | Not eligible | Not eligible |
The Finix API guide focuses its supported Level 2 and Level 3 feature on Visa and Mastercard. Merchants should not assume that the same request structure or financial benefit applies to American Express without confirming their specific processing configuration.
Applications that still submit only Level 2 information for Visa may process successfully. They simply should not expect the former enhanced interchange benefit.
Payment success and interchange qualification are separate outcomes.
What data is required for Finix Level 2?
Level 2 generally uses summary information related to the complete order.
Finix and its current commercial-card guidance identify examples such as:
- Sales-tax amount
- Tax indicator
- Customer reference number
- Purchase-order number
- Invoice or order reference
Finix requires the sales-tax amount submitted for qualifying Level 2 or Level 3 processing to be greater than 0.1% of the total transaction amount when tax is included.
A merchant should report the actual tax charged.
Do not enter a fabricated one-cent or one-dollar tax amount to satisfy a field requirement. Under Visa’s newer validation model, inaccurate data can cause transactions to be downgraded and may affect the merchant’s program classification.
Finix also states that tax-exempt transactions are not eligible for Level 2 processing, although they can be eligible for Level 3.
That makes Level 3 particularly relevant for government or tax-exempt buyers.
What additional information does Level 3 require?
Level 3 adds detailed information about the goods or services purchased.
Typical fields include:
- Item description
- Merchant product code
- Quantity
- Unit cost
- Line-item total
- Freight or shipping amount
- Discount amount
- Tax information
- Customer or purchase-order reference
Visa’s current validation standards place particular importance on the quality of the item description and product code.
Finix warns that a generic merchant name, one-character description or irrelevant identifier may not satisfy Visa’s enhanced-data requirements. A product code should represent a legitimate SKU, manufacturer code or buyer product code rather than an unrelated merchant category or card-product value.
Consider these examples:
| Weak value | More useful value |
ITEM | Industrial air filter 20x25 |
SERVICE | July 2026 equipment maintenance |
123 | Actual merchant SKU or buyer product code |
| Merchant’s company name | Specific product or service purchased |
The description does not need to become a paragraph. It needs to identify the actual line item.
Detailed but false information is worse than incomplete information.
When must the enhanced data be submitted?
The required data needs to be included during the payment authorization process.
Finix’s 2026 guidance says enhanced data cannot simply be added after the transaction has already processed in the hope of retroactively receiving a lower interchange category. Missing or incomplete authorization-stage data can leave the transaction at standard Level 1 pricing.
Finix supports Level 2 and Level 3 data on:
- Transfers
- Authorizations
- Payment Links
When an Authorization already includes the correct enhanced data, Finix says the capture does not need to resubmit it unless the information changes.
A common integration mistake is collecting invoice details in the company’s billing system but never mapping those fields into the Finix request. The data may exist in the merchant’s database while the card network receives only an amount and card token.
Collection is not transmission.
Confirm the final API payload.
Which businesses are excluded?
Finix publishes a list of merchant category codes that are not eligible for its Level 2 and Level 3 processing feature.
Excluded categories include:
- Airlines and passenger transport
- Car rentals
- Cruise lines
- Certain direct-marketing businesses
- Hotels and lodging
- Passenger railways
- Restaurants
- Travel agencies
- Truck and utility-trailer rentals
The exclusion is based on the merchant category code attached to the account, not on how the merchant describes itself on an invoice.
A hotel selling conference-room rentals does not automatically become an eligible B2B supplier if its processing account remains categorized as lodging. Likewise, a restaurant charging a corporate purchasing card does not receive Level 3 eligibility solely because the buyer is a company.
Check the merchant’s verified MCC before development begins.
Building detailed line-item support will not create savings for an excluded category.
How much can a business save?
There is no universal Finix Level 3 savings percentage.
Interchange depends on:
- Card network
- Commercial card type
- Merchant category
- Transaction amount
- Data quality
- Authorization and settlement timing
- Pricing model
- Whether the transaction qualifies or downgrades
Finix says enhanced data can significantly reduce interchange for qualifying B2B businesses, SaaS platforms and marketplaces. It does not promise one fixed reduction for every merchant.
The benefit is easier to see under interchange-plus pricing because interchange appears separately from the processor’s markup. Under a blended price, the processor may charge one combined rate, making the transaction-level network benefit less visible.
A merchant evaluating implementation should measure:
- Percentage of payments made with commercial cards
- Visa versus Mastercard mix
- Eligible merchant categories
- Average transaction amount
- Current interchange qualification
- Development and data-maintenance cost
- Actual post-launch interchange results
A consumer-focused retailer may gain little. A B2B supplier processing large corporate purchasing cards may have a stronger case.
Does submitting more fields always lower the fee?
No.
Finix says the documented required arguments represent the minimum information needed for the applicable processing level. It also says there is no additional benefit from submitting every optional argument merely because the field exists.
More information can help only when it is required, accurate and supported.
Unnecessary fields can create other problems:
- Incorrect tax totals
- Line items that do not add up
- Generic product codes
- Conflicting invoice values
- Capture data that differs from authorization
- Invalid shipping or discount calculations
Visa’s CEDP validates transaction information and can downgrade inaccurate submissions. Finix says merchants initially enter the program as non-verified and must demonstrate data accuracy to obtain verified status and enhanced rates.
Accuracy beats field count.
Do refunds and settlements work differently?
Finix says there are no changes to the post-payment experience for Level 2 or Level 3 transactions. Refunds, reversals and settlements continue through the normal Finix processes.
Enhanced data affects how the original commercial-card transaction may qualify for interchange. It does not create a separate refund system.
A refund still needs to be connected to the original Transfer. A dispute still follows the ordinary dispute workflow. A settlement still contains payments, fees, refunds and adjustments according to the merchant’s account configuration.
Do not attempt to “correct” invalid Level 3 data by refunding and recharging the buyer without a genuine business reason. That creates another customer transaction and can produce duplicate authorization, reconciliation and dispute problems.
Fix the integration for future payments.
Finix Level 2 and Level 3 FAQ
Does Finix support Level 2 processing?
Yes for eligible Mastercard transactions. Visa Level 2 stopped qualifying for lower interchange on April 17, 2026.
Does Finix support Level 3 processing?
Yes. Finix supports Level 3 data on eligible Visa and Mastercard Transfers, Authorizations and Payment Links.
Do consumer cards qualify?
No. Enhanced commercial-card rates require an eligible business, corporate or purchasing card.
Can Level 2 or Level 3 be tested in sandbox?
Finix says the feature is available only in live environments and is not supported for normal sandbox qualification testing.
Are tax-exempt transactions eligible?
They are not eligible for Level 2 under Finix’s current guide, but they can qualify for Level 3 when the other requirements are met.
Can I add Level 3 data after the payment?
The required information should be supplied during authorization. Adding invoice details only after processing does not retroactively create interchange eligibility.
Does Level 3 guarantee the lowest rate?
No. The card, merchant, transaction and submitted data must qualify, and the network determines the final interchange category.
Why did my Visa B2B rate increase in 2026?
An integration still submitting only Level 2 data may no longer qualify for Visa savings after the April 2026 retirement. Visa now requires valid Level 3 data under its enhanced commercial-data framework.
Confirm that the merchant and card portfolio qualify before building enhanced-data support. Then map real tax, invoice and line-item information into the Finix authorization request and compare actual interchange results after live enablement.