To begin filing you tax return using TurboTax Online, you can visit this link here and select the product that best meets your tax needs. You would then create your account by setting up a User ID and password. Once you have your account set up the TurboTax program will guide you through the tax interview to ensure that your return is filed accurately.
Once you have e-filed your tax return you should receive an email informing you that your tax return was successfully e-filed.
To verify if your tax return has been completed, you can sign back into your Online account and your e-file status will be prominently displayed on the screen.
You can also visit the TurboTax e-file status lookup tool by visiting the following link Check e-file status to get your current status (pending, accepted or rejected).