TurboTax is an American tax preparation software package developed by Michael A. Chipman of Chipsoft in the mid-1980s.  TurboTax became an Intuit product as a result of the 1993 acquisition of its creator, San Diego-based Chipsoft. Chipsoft, now known as Intuit Consumer Tax Group, is still based in San Diego, having moved into a new office complex in 2007. Intuit Corporation is headquartered in Mountain View, California.

TurboTax for the Mac was originally named MacinTax, and was developed by SoftView was in turn purchased by Chipsoft. TurboTax is one of the most popular income tax preparation software packages in the United States, with only one main competitor. There are a number of different versions, including TurboTax Deluxe, TurboTax Premier, etc. TurboTax is available for both federal and state income tax returns. The software is designed to guide users through their tax returns step-by-step. The TurboTax software includes the ability to purchase audit defense services from TaxResources, Inc.

Typically, TurboTax federal software is released late in the year and the state software is released mid-January to mid-February. TurboTax normally releases its new versions as soon as the IRS completes revisions to the forms and approves the TurboTax versions, usually late in the tax year. The process is similar for states that collect income taxes.

TurboTax Estimated Taxes is an online estimated income tax payment calculating and filing service. For taxpayers who file quarterly estimated payments, it provides payment calculators and allows e-filing of estimated tax payments. Automatic deadline reminders help users avoid late payments. The record of past payments can be automatically imported into TurboTax at tax-filing time, which saves the trouble of typing in that history.