Amending Prior Year NYS return when original was prepared by someone else

[Gerry Finn]

While preparing the tax return for a new client, I noticed an error on their prior year NYS return. They pay their property taxes directly. The prior accountant did not take a deduction for that because of the $10,000 limitation on the Federal Schedule A. However, their is no such limitation on deductions on the state return.

How do I amend the 2018 NYS return? Can I do it through the 2019 ProSeries Basic software if I did not prepare the 2018 return? Do I have to use the 2018 software and be subject to the PPR?  

[Terry53029]

Yes you would use 2018 software, or you could get a copy of Turbo Tax cheep on ebay, or you could do it by hand