We may need more info on your fact pattern.

FYI, VA & MD have a reciprocity agreement.  So wages earned in VA by a MD resident are taxable on the MD return (and not taxable on a VA return).

If you have a part-year resident that's a different story.  If you have a VA rental property owned by a MD resident that's a different story.  If you have a Sch C business operating in both VA and MD that's a different story.

Tell us your story. 🙂

Rick (in VA)