Cash App Taxes is the only DIY tax filing product available from the company. It supports most IRS forms and schedules and offers e-filing in 40 states. 

Using a dedicated mobile device, you can use it to prepare your federal and state returns. It's free to use, and the service doesn't require extra software or fees.

If you file your taxes with Cash App Taxes, you can take advantage of their maximum refund guarantee. If another service finds you a bigger refund, Cash App will match the difference up to $100 (with a minimum of $25). 

There's also an accuracy guarantee if the Internal Revenue Service notices a discrepancy between your return and your statement. They can claim if there's an error in your calculations, but you must file an amended return with the other company.