For many years now, Southwest Airlines has offered 1,000 Rapid Reward points for filing your taxes online with TurboTax. To get this offer, you must be enrolled in the Rapid Rewards Shopping portal and you must click through the link to TurboTax. Your filing must be between 1/4/16 and 4/18/16 and the qualifying products include 2015 online version of TurboTax Federal Free Edition, TurboTax Deluxe, TurboTax Premier, and TurboTax Home & Business.
The points in the past have posted quickly, and these do count towards your Companion Pass. This can jump start your earnings for the year!