Underwriting
What is underwriting?
Underwriting is the process financial institutions and use to assess merchant applications and set the terms for payment processing. It decides which businesses can accept card payments, and at what price, reserve level, and monitoring intensity.
Every business applying for a goes through it. Underwriters build a risk picture from three inputs: the business model behind the revenue, the financial position supporting it, and the industry the merchant operates in. That picture becomes a risk rating, and the rating drives the contract. Approval isn't permanent either, since re-open the file when volume, product mix, or dispute performance moves away from what the merchant originally declared.
Key facts
- Performed by: acquiring banks, payment service providers, and boarding sub-merchants
- Applies to: new merchant applications, and live accounts during periodic or triggered review
- Core inputs: business model and website, financial statements and credit history, prior processing and history, incorporation documents, licenses, and ownership records
- Possible outcomes: approve, approve with conditions (reserve, volume cap, restricted product list), or decline
- Industry classification: the (MCC) assigned during underwriting is a four-digit code grouping merchants by industry. It feeds interchange rates, scheme fees, and the risk tier applied to the account, so a card-not-present subscription business and a physical retailer with identical revenue end up on different terms.
- Duration: varies by acquiring bank and risk profile, from same-day automated review for straightforward online businesses to multi-week manual review for regulated or categories
How it works
- Application and document collection. The merchant submits incorporation documents, processing history, bank details, and a description of what it sells and how it bills.
- Business model review. Underwriters examine revenue sources, delivery timelines, refund policy, and billing model. Long delivery windows and recurring billing raise exposure, because the acquiring bank carries the refund liability for anything paid for but not yet delivered.
- Financial and processing checks. Credit history, cash flow, and capital are reviewed alongside transaction history and chargeback performance for merchants that have processed before.
- Identity and compliance verification. and checks confirm legal registration and licenses, and identify directors, key personnel, and the . Sanctions screening and a check happen at this stage.
- Risk decision and terms. The risk rating sets the processing rate, the monthly volume ceiling, and whether apply. Low-risk merchants get lower rates, fewer restrictions, and more flexible contract terms; high-risk merchants face higher fees, held funds, and transaction limits.
- Ongoing monitoring. After boarding, the acquiring bank tracks chargeback ratios, refund rates, and signals against monitoring programs such as .
Why it matters
- The acquiring bank carries the financial liability. If a merchant takes payment and fails to deliver, the chargebacks land on the acquiring bank once the merchant's own funds run out. Underwriting is where that exposure gets priced, through reserves and volume caps.
- Card networks hold acquiring banks accountable for the merchants they board. Boarding a business selling prohibited goods exposes the acquiring bank to scheme fines and mandated remediation.
- The decision fixes the merchant's cost base. The assigned risk tier feeds the and determines how much of each settlement is held back rather than paid out.
- Misclassification creates recurring cost. A merchant boarded under the wrong MCC pays interchange built for a different industry, and card networks penalize miscoding once they detect it.
Common issues
- Inconsistent documentation. Mismatches between the registered company name, the bank account holder, and the operator named on the website stall applications at the verification stage.
- Undisclosed products or business lines. Found after boarding, these typically end in termination and a match list entry that blocks the merchant from opening an account elsewhere.
- Understated volume forecasts. Processing well above the approved ceiling triggers held settlements and forces re-underwriting.
- Opaque ownership. Layered holding structures slow verification of the ultimate beneficial owner, particularly for merchants incorporated across several jurisdictions.
- Post-approval drift. A breach, a new product line, or a jump in refund rates re-opens the file and can convert flexible terms into reserved ones.
