How would you recomendable filing 3 years of taxes at once for an independent contractor?

[rjs]

Each year has to be filed separately. You can use TurboTax Online for 2019, as long as you finish by October 15, but you cannot use TurboTax Online to file for past years. TurboTax Online is only for the current tax year. To file for earlier years you have to use the CD or download TurboTax software for each year that you need. You can purchase downloads at the following link.

Past Years' Products

You might get a better price from a reputable online seller that still has TurboTax in stock for the years that you need.

Tax returns for past years cannot be e-filed. You will have to print your past-year tax returns, sign them, and file them by mail. Mail each year in a separate envelope.

[DoninGA]

Each tax year must be entered separately on a tax return for the year being reported.

Using TurboTax you can complete and file prior year tax returns, 2018 thru 2016, by purchasing and downloading one of the desktop editions for each tax year required from this website - https://turbotax.intuit.com/personal-taxes/past-years-products/

Any of the desktop editions can be used to report your self-employment income and expenses.  However, the Home & Business edition is recommended.

A prior year tax return can only be printed and mailed, it cannot be e-filed.  Use a separate envelope for each tax year being mailed.

For tax year 2019 you can use either the TurboTax online edition or the desktop CD/Download editions.  The desktop editions are recommended.

TurboTax 2019 desktop CD/Download editions - https://turbotax.intuit.com/personal-taxes/cd-download/

A 2019 tax return can be e-filed up through October 15, 2020.  After that date the 2019 tax return can only be printed and mailed.