Error: Form 510 Line 13 must equal sum of Line 9 and Line 12
You get this error when the total nonresident tax on Maryland Form 510, Line 13 doesn’t equal the sum of Line 9 and Line 12. This typically occurs when Lines 9 and 11 contain "NONE" text entries instead of numeric values or blank fields.
Error message
Form 510: Line 13 Total nonresident tax - must equal the sum of line 9 and line 12.
Solution
- Go to .
- Remove the "NONE" entry onLine 9using a space bar override.
- Remove the "NONE" entry onLine 11using a space bar override.
- Do a full recompute, then recreate the e-file.