The short answer
No, a P.O. Box cannot be used as a Maryland Resident Agent address. SDAT requires the Resident Agent to have a physical street address in Maryland where the agent is available during normal business hours to receive official correspondence and service of process in person.
Why a P.O. Box fails the requirement
A P.O. Box is a mailing address, not a physical location where someone is present. Service of process and official government notices must be delivered to a real street address to a person who can accept them. A P.O. Box cannot accept hand-delivered legal documents.
What qualifies instead
A qualifying Resident Agent address is a physical Maryland street address: an office, a commercial location, or a home where someone is present during business hours. A professional Resident Agent service provides a compliant commercial street address for this purpose.
Using a Resident Agent service
Our Maryland Resident Agent service provides a physical Maryland address that meets SDAT's requirement, receives official correspondence and service of process on your behalf, and forwards it to you promptly. It is $50 per year and keeps your personal address off the public record.
This is general information, not legal or tax advice.
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