After you file

Yes, if you itemized, but note that the total of Sales tax OR State and local income tax, Property (real estate and personal property) taxes are capped at a total of $10,000.    So of you have already reached $10,000 then amending will not change anything.

**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**