State tax filing

There are two steps to fix your situation. 

1. Exclude your Maryland wages in the Pennsylvania section, and
2. Subtract all your income in Maryland as Non-Maryland income to get a full refund of MD tax withheld.

In Pennsylvania, on the screen “Compensation Summary,” tap Edit on your MD wages.

On “Verify this income,” select Entire amount of this income is not taxable in PA.

In Maryland, on the screen “Maryland Wage Income” change the amount to $0.