I'm having a similar issue. Last year, I owed about $5k in state taxes. I withheld $3k so I paid $2K. I got the $3k deduction last year so I know I only get the $2k this year for 2019. I also withheld about $2k this year. So that brings my total 2020 deduction to about $4k. I have no local taxes or SDI on my w-2. Yet TT is showing a deduction of $6k and can't figure out where that extra $2k is coming from. Any ideas?
