I have 2019 proseries basic and a client ask me to do amendment for 2018 tax return should I use 2018 Software??
Yes, use 2018 software to amend a 2018 return.
But i don't have 2018 version is there option like PPR??
Sign into your ProSeries account here and see if 2018 is available for download, if it's not listed youd need to call in. Yes, you should be able to use it PPR.