TurboTax can only be used to complete and file prior tax returns of 2022, 2021 and 2020.
To complete and file a prior year tax return using TurboTax you would need to purchase, download and install on a personal computer one of the desktop editions for each tax year required from this website - https://turbotax.intuit.com/personal-taxes/past-years-products/
A prior year tax return can only be printed and mailed, it cannot be e-filed using TurboTax. Use a separate envelope for each tax year when mailing. Also, use a tracking service from the US Post Office so that you will know the tax returns were received. A federal tax return and a state tax return are separate filing and mailed to separate addresses.
Note that tax returns with a tax refund prior to tax year 2021 will not be paid since it is beyond the 3 time frame from the due date of the tax return.
You should seek out a local tax professional to assist in completing and filing returns prior to 2020 especially if you have taxes owed.
