In a statement confirming the deal, Global Payments said the deal relates to its business for licensed gaming operators.
The FIS operation includes 260 marquee gaming client locations and provides a wide-ranging suite of services designed specifically for the gaming industry.
The acquisition of Certegy Check Services comes after Global Payments in March finalized a deal to purchase payment gateway Realex Payments.
Speaking at the time of the deal, Global Payments chief executive, Jeff Sloan, said the move would help expand the company's omni-channel technology offerings.