I need to file an amendment from previous years but I did not use turbo tax to file the original form. I seeking to figure out how I go using turbo tax

[Anonymous]

if prior to 2016 TT will be of no help since those years are no longer supported.  it really would be easier to use the same source you used to prepare the original return since all the data except for the changes already exist.  but if you want to go the TT route online is only available for 2019. for years 2016-2018 you would need to purchase and install the desktop software. if necessary you would also have to purchase the state. 

https://turbotax.intuit.com/personal-taxes/past-years-products/

after you get the software you would need to enter all the info from the original return so the TT numbers come out exactly as originally filed. how much detail depends on what you are going to amend. 

[xmasbaby0]

If you did not use TurboTax to prepare your tax return, it is possible to amend the return using TurboTax but it will really be a pain.  It would be better to use the software or service used to file originally.  If a paid preparer made a mistake on your tax return, that tax preparer should do the amended return for you at no charge.

In order to use TurboTax to amend your return, you need to purchase the desktop software for that tax year and re-create the return EXACTLY as it appeared when it was filed with the IRS/states.  Every line has to be the same.  Then you have to "trick" the software into thinking you filed by saying you will mail the return. (but do not mail it)   AFTER that, you use the software to prepare a Form 1040X, which has to be printed, signed and mailed to the IRS.  It takes the IRS about 3-4 months to process an amended return.

Note:  Software for years prior to 2016 is not available.