Hi Are you looking for import 2018 tax return from other sytem than PCO into PCO?

I have done once imported from 2018 Turbotax to 2019 PCO. You can search that or ask customer service give you instruction. 

But what i was looking for was import (convert) 2018 turbotax to 2018 PCO, so I can have a base year return match to what was filed in other system.

Since then when I have new customer, I will manually enter their prior year tax as filed in PCO.