Hal_Al
Level 15

Get your taxes done using TurboTax

You probably have to file a MD non resident return to report the sale and claim a refund, if any.  

In TurboTax (TT), enter at:

Federal Taxes Tab

Deductions & Credits

-Scroll down to:

--Estimates & other taxes paid

   -Other Income taxes

On the next screen, scroll down to

     -Other income taxes paid in 2018  

       -  Withholding not already entered on a W-2 or 1099
         -On the next screen, enter the amount of withholding and the state

You may want to mail your MD return (rather than e-file) so your can attach a copy of the form showing the withholding. 

If you itemize on the federal return, you should still enter the state withholding to  get the deduction.