Best Registered Agent by State

Best Registered Agent by State › Maryland

Registered agent in Maryland: requirements, real cost and our pick

Our pick for Maryland is Mainstay Filing: $149 a year, the same at renewal. Every LLC must name a registered agent with an in-state street address.

What Maryland requires

Agent neededRequired (Md. Code, Corps. & Ass'ns § 1-101(x))
Who can serveA Maryland resident, or a Maryland corporation, LLC or limited partnership.
AddressThe address has to be a Maryland address on file with the State Department of Assessments and Taxation; P.O. boxes are not accepted. The LLC also keeps a principal office in Maryland.
Change of agent$25, filed with State Department of Assessments and Taxation (SDAT)
Do it yourself?Check the rule on who may serve before deciding to do it yourself.

Checked October 20, 2026.

Our pick and the field

Registered agent prices for Maryland read October 2026, from each provider’s own page.
ProviderYear 1RenewalWhat the page lists
Mainstay Filing$149$149Registered agent all year; service of process scanned and uploaded the same business day
ZenBusiness$99$199Document receipt, scanning and upload to a dashboard; email notifications
Harbor Compliance$99$159Documents delivered to a client portal; annual report reminders
Northwest Registered Agent$125$125Its address on public filings; scans of state and legal mail; up to 5 pieces of other business mail scanned free a year; domain, website, email and phone line
Bizee$149$149Compliance notifications; its address on the public record
LegalZoom$249$249Alerts when mail arrives; documents scanned and uploaded; annual report reminders
Swyft Filings$596$596Billed $149 per quarter, which is $596 a year.

What an agent does and doesn’t do here

It takes service of process and official state mail. It is not a business mailing address, and cannot stand in for one, for example for bank verification. See the full list.

Why prices differ so much in Maryland

Published year-one prices here run $99 to $596, a $497 spread. ZenBusiness is lowest in year one and Northwest Registered Agent lowest at renewal. Three things drive the spread: a first-year price that renews higher, a free year that needs a formation order, and what is bundled, from scanning to annual-report reminders. Compare the renewal column, not the first one.

What is the best registered agent in Maryland?

Mainstay Filing: $149 a year, the same at renewal. 6 other providers have a published Maryland price, from $99 to $596 in year one.

Can I be my own registered agent in Maryland?

Check the rule on who may serve before deciding to do it yourself. A Maryland resident, or a Maryland corporation, LLC or limited partnership.

How do I change my registered agent in Maryland?

File the state’s change form with State Department of Assessments and Taxation (SDAT); the fee is $25 (Md. Code, Corps. & Ass'ns § 1-101(x)).