How do I file an extension. I thought it was supposed to be simple but I keep going back to pages where it wants to sell me something.

You can file your extension at our Easy Extension website.

You have to enter name, address, and SSNs and then your estimates.   You can skip past the TurboTax payment screen and choose to pay your tax bill at the IRS website.   TurboTax will e-file your extension.