How do I resolve Maryland Reject "Form502-01805-010"?
Maryland Reject "Form502-01805-010" was caused by the checkbox on line 49 of Form 502 being marked without Form 502UP having been completed. Affected returns will be re-transmitted.
We released an update on April 9, 2024 to prevent this reject on future returns.
We apologize for any inconvenience this may have caused.
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