After you file

For what?  Do you have a business?  If you itemize deductions you can deduct medical, charity, mortgage interest, property tax, state income taxes or sales taxes.  See schedule A
<a rel="nofollow" target="_blank" href="https://www.irs.gov/pub/irs-pdf/f1040sa.pdf">https://www.irs.gov/pub/irs-pdf/f1040sa.pdf</a>