IRS reduced the amounts from 2023 to 2024. I can't find any explanation on why the IRS sales tax amount decreased in 2024 or the IRS methodology for setting these amounts from year to year. It looks to be across all states, income levels and family size, but I haven't gone through and checked each one. Look up Instructions for Schedule A for 2023 and 2024 and search for Optional State Sales Tax Tables and you can see the year over year change for your state based on income and family size. These are the tables the IRS Sales Tax Calculator uses (and TurboTax). I'm in the same boat as you -- AGI went up but my sales tax deduction went down.
