Home Depot Inc. plans to enable Apple Inc.'s mobile-payment platform at its more than 2,000 stores, making it the largest retailer to accept Apple Pay.

The retailer is updating its systems and intends to offer Apple Pay after the upgrade is complete, Home Depot spokesman Steve Holmes said, without providing a timetable for the rollout. The chain, which currently accepts PayPal, also may add other kinds of mobile payment, he said.

Customers already were able to use Apple Pay at some of Home Depot’s stores, although an agreement with Apple wasn't in place. The world's largest home-improvement retailer could accept mobile payments because its checkout terminals have Near Field Communication readers. Those devices have been turned off during the upgrade.

Home Depot will join chains like Macy's Inc. and Whole Foods Market Inc. in accepting Apple Pay at stores. Many other retailers are betting on a mobile-payment option from the Merchant Customer Exchange, which was founded in 2012 by retailers such as Walmart Stores Inc. and Target Corp. That offering, CurrentC, is still being developed.

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