This article applies to:

Error: Form 510, Line 19 Total Balance Due

This happens when the lines previous don’t add up to the total. None
being on a line can cause this diagnostic.

Form 510: Line 19 Total Balance Due - must be equal to the sum of lines 17 and 18.

Go to the Tax Forms
, States
folder.

Then go to the Maryland, MD 510
folder.

Open the MD 510
, Page 2
tab.

If lines 17 and 18 aren't populated and line 20 has a None
value, then for line 20 override the None
to be blank.

Do a full recompute, then recreate the e-file.