Why This Number Matters to an ISO or Agent
Every one of the figures below is, functionally, the size of the pie merchant services agents are selling access to. A residual, the recurring monthly payment that makes this business model work, is a small percentage of the transaction volume running through a merchant's account. When total US card volume grows 5.0% year over year, that is not an abstract macroeconomic figure, it is more dollars flowing through the same merchant accounts an agent's existing book already touches, and a larger addressable pool of transaction volume for every new account added.
Reading Network-Level Numbers Correctly
Visa and Mastercard each publish their own volume separately, and the numbers below reflect that: Visa's $7.028 trillion and Mastercard's $2.958 trillion are not the same measurement as the $12.498 trillion total figure, which also includes American Express, Discover, and other networks. The combined Visa-plus-Mastercard figure and the combined-credit-only figure below are each their own distinct measurement, worth keeping separate rather than adding on top of the total. All figures on this page trace to the Nilson Report, the payments industry's standard network-volume data source, with one figure flagged separately for its secondary sourcing.
The Numbers
Total US card (credit, debit, and prepaid combined) purchase volume reached $12.498 trillion in 2025, up 5.0% year over year.
Visa US card purchase volume reached $7.028 trillion in 2025, up 6.8% year over year.
Mastercard US card purchase volume reached $2.958 trillion in 2025, up 6.3% year over year.
Combined Visa and Mastercard US volume reached $9.986 trillion in 2025, up 6.6% year over year.
Combined American Express, Discover, Mastercard, and Visa credit card purchase volume reached $6.512 trillion in 2025, up 6.1% year over year.
Q1 2025 total US card purchase volume alone reached $2.697 trillion, up 5.9% year over year.
487.5 million total US payment card accounts were recorded for 2023, a figure attributed to the Nilson Report but reached here through a secondary aggregator rather than a direct Nilson citation. Treat this one specifically as secondary-sourced, and verify against nilsonreport.com directly before republishing it elsewhere.
Gitnux, payment processing industry statistics (citing Nilson Report, secondary source)
Sources
The external data in this article draws on the sources below. Figures described in the text as estimates or industry triangulations are directional and are not attributed to a single dataset.