Earlier today Intuit announced a completely new version of its QuickBooks accounting software, and to kick it off, it’s also announcing a new, and rather groundbreaking, partnership. It is integrating with mobile payments juggernaut Square, so that small businesses that use the mobile payment service can automatically feed data from those transactions into their books. The financial terms of the deal were not disclosed, but Dan Wernikoff, senior vice president and general manager of Intuit Small Business Financial Solutions, confirms to me that it is definitely a “commercial arrangement”. The integration will formally launch in November 19, at which point pricing for the service will be revealed. The service will be U.S. only for now, although QuickBooks has a large global footprint.

While Square has yet to announce a formal API for third parties to freely integrate its service, that is what Intuit is using to incorporate Square into QuickBooks. “There is an API and it is being used for this integration,” Wernikoff tell me.

It will mean, in his words, that “when you are making a sale with a Square device this reconciliation will automatically flow back into QuickBooks,” he says. “It’s pretty complementary; an extension of what QuickBooks already does.”

This is something of a sea change for the two companies. Intuit has itself created its own point of sale product called Go Payment, complete with a dongle that links up with a mobile device. While this has in the past been positioned as a rival to Square, today Wernikoff pitches it differently. “Go Payment is a growing portion of our payments business and I expect it will continue it to be,” he says. “But all of us have been at chapter one of mobile payments, a very basic phase focused on emulating a point-of-sale device. Chapter two is that each of us is starting to move in different directions.”

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