BobKamman
Level 15

If they do, would you trust it? Or consider it  a starting point to check your own calculations using intracranial synapses?  

Are you recalculating 2025 ES payments for clients to whom the new law applies?  Only two months left to do that and get the word out.  I would start on that, now.  

If it weren't for the phaseout rules, this would be the work of a 10-year-old.  Plug in the disallowed SALT as an itemized deduction somewhere else on Schedule A, and plug in Social Security, tips and overtime (up to the limits) as an adjustment to income.  Many clients will fall into the categories of either "obviously qualify" or "obviously don't qualify" based on income.  Are you going to contact all of them with a W-2 and ask them how much overtime they expect to earn this year?  When it's only July?  

I haven't waded through the new rules on withholding for tips and overtime, but I sense that those amounts will change depending on how and when employers implement them.

I vote for Intuit putting all of its resources into getting the 2025 program right, which will help 100% of users, rather than putting some of its resources into rewriting one feature of the 2024 program, which benefits maybe 5% of users.