Marqeta Adds Square Credit Card to Network

Marqeta now processes Square Credit Card transactions on the American Express network.

Updated on Oct. 20, 2026 in Credit Cards

Marqeta Adds Square Credit Card to Network

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Marqeta has begun processing Square Credit Card transactions on the American Express network. This transition is part of a larger effort by Block to consolidate its card programs onto the Marqeta platform.

Why it matters

Block consolidated its various card offerings to reduce operational complexity and simplify the rollout of new credit features for sellers. The move allows for more unified management of card issuance, underwriting, and risk controls.

Marqeta reported processing nearly $400 billion in annual payments volume in 2025 across more than 40 countries where it maintains operating certifications.

The players

Marqeta

Marqeta is a financial technology company that provides a cloud-based platform for card issuance and transaction processing.

Block

Block is a global financial technology company that develops point-of-sale hardware and software for businesses, most notably through its Square segment.

The details

Existing Square Credit Card accounts and credentials were migrated to the Marqeta platform using specialized portfolio management tools. The platform provides a single integration point for card issuance, underwriting, rewards management, risk controls, and disputes.

The business relationship between Marqeta and Block began in 2019.
Marqeta processed nearly $400 billion in payments during 2025.
The Marqeta State of Credit report was published in 2026.
Marqeta began processing Square Credit Card transactions on October 20, 2026.

Market Dynamics

This integration follows trends identified in the 2026 State of Credit report, which noted that 64% of small businesses actively seek better access to advanced credit products. By streamlining infrastructure, companies aim to capture the 34% of businesses that switch credit products as they grow.

For businesses using Square, this change simplifies the back-end management of card programs without disrupting existing account credentials. Customers and sellers can expect more streamlined processing as Block integrates its card features onto a single platform.

The takeaway

Businesses should anticipate more rapid deployment of credit features as providers move toward consolidated processing platforms. Monitoring changes in credit product offerings can help small business owners better align their financing with evolving operational needs.