Facebook Inc is gearing up to make money from WhatsApp, the messaging service used by more than a billion people every day, the Wall Street Journal reported today.

WhatsApp is testing features that would allow businesses to chat with their clients on the app, according to the report.

It has started a pilot programme that would feature a green badge next to a business contact, indicating that the business was verified by the messaging service, the WSJ reported.

"We do intend on charging businesses in the future," chief operating fficer Matt Idema told the Journal in an interview.

Started in 2009, WhatsApp was acquired by Facebook for an eye-popping $22 billion in 2014. While WhatsApp had little revenue at the time of the deal, the purchase price was slightly more than the market value of Sony Corp.

Facebook has not focused on WhatsApp so far. The social network had started showing ads inside its Messenger app in July to further monetise the chat service.

Idema declined to describe the paid features or say when they would make their debut, according to the report. "We don't have the details of monetisation figured out," he told the Journal.

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