I realize the distinction and advantage of filing joint. However, we separated 8/2021 and separation agreement was accepted by PA court in November; so I filed as single. Later found out that she had filed MFS status. When I change my status in TurboTax my refund was reduced by ~$1700 . My question was why.
I just compared the worksheets between single and MFS; apparently the max allowable for State Property Tax + Real state interest is more for single which increased my Adjusted Income: Single = $10000 and MFS = $5000
