Get your taxes done using TurboTax

Under normal circumstances, I heard that people have to file an extension with the IRS, outside of the TurboTax software (fill out a form and mail it or via an online website), and then file using TurboTax like normal. 

 

How does TurboTax know whether the taxpayer has filed for an extension (by mail or via a website)? 

 

BTW, in our case, we're due a refund ... so no tax payment due. 

 

I just need to figure out if TurboTax will allow us to file beyond April 18th but before Oct 16th ... or if we need to file for an extension first just to be on the safe side.