I have the same problem and you DON'T know what the state is getting via efiling.
When you view the MD 510 on the screen, it shows the correct in-state MD income on line 2, where it should be if you only have MD income.
BUT, when you view the return in the print center, or actually print a hard copy of the return out, the line 2 MD income is NOW printing on line 3a, NON-MARYLAND income! And line 2 is now blank.
I would not advise efiling until this is fixed. You won't know what the state is actually getting.
And the deadline is only 10 days away (March 15).
This is just wrong.
