Mercury Payment System

Credit Card Payment System • Mercury Payment System

Mercury Payment System provides merchant payment services including acceptance of credit, debit, PIN debit, EBT, gift and check payments. You’ll enjoy fast, affordable and secure transactions with Mercury Payment System specializing in integrated POS solutions for restaurant and retail merchants. Mercury Payment System delivers the reliability, speed, and proactive customer care every successful business needs.

On POS is proud to have developed and fully integrated Mercury Payment System into our POS Solution. Merchants of ON PO Smay now enjoy greater flexibility with complimentary credit card processing software and no contract in addition to:

Affordable Transactions
Highly competitive rates for credit, debit, EBT, and FSA transactions.
Simplified PCI Compliance
Merchant SecureAssist™ makes it easy to achieve and maintain PCI compliance.
Free Gift Transactions
MercuryGift offers unlimited gift card transactions for merchants who also process credit cards with Mercury.
24/7 Support
Free, live, U.S. based customer service and technical support available anytime, day or night.
Top Payment Processor
Mercury has been voted top payment processor four years in a row by our partners.
99.99% Historical Up Time
Authorization network protection service provides continuous processing in the event of an outage.

Fill out the application online

Singing up with Mercury is easy:

Or, click here to download a primary application for rate quoting and future benefits. For more information, please call during our office hours or visit