Intuit Inc. has completed its $170 million purchase of Mint Software Inc.

The deal, announced in September, brings Intuit the technology and audience of the personal financial management Web site Mint.com. Aaron Patzer, Mint's founder, has joined Intuit as the vice president and general manager of its personal finance group. The transaction closed Monday.

The Mountain View, Calif., companies said they are planning to apply Mint's referral technology, which suggests new financial accounts that can help users save money.

"With Intuit, you can apply that same savings engine across a bunch of Intuit properties, and it essentially allows them to monetize a bunch of free products," Patzer said in a September interview.

The companies said they would also be able to use financial data from Mint's Web site to help users fill out their taxes through Intuit's TurboTax products.