Are you using Turbo Tax Business to do a separate Business return or Turbo Tax Home & Business to fill out schedule C in your personal 1040 return?
i assume you mean your personal return.
To amend a return you did somewhere else of by hand, you would first have to fill out Turbo Tax like you are doing the original return. You have to recreate the actual wrong original return. Then when it matches each line that you really filed you have to tell Turbo Tax you will mail it so it thinks it was filed. Then you can amend it.
And 2017 should have the same forms, etc. as 2016. Did you ask for help back then? Maybe you used a different version and it might have been in a different spot.
