Thanks for the explanation, I'll be sure to pass this feedback along to the team. Correct me if I'm wrong on any of the below - I want to make sure I understand the issue entirely.

Setting aside any EFT/WebPay scenarios - I think the disconnect here is that Lacerte generates the full amount of PTE on line 35, unless it's overridden. The 3893 (PMT) should generate with the full amount from line 35 (or, line 35 less any amount entered as "Pre-payment already made") .

It sounds like you're expecting line 35 to be $0 when the client hasn't paid any PTE yet; so you use the PTE Elective Tax Payment Vouchers(s) override to set that line to zero, but then you're stuck with no voucher or instructions. Is that correct?