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Founder Primer

LLC paperwork, boiled down for founders.

Primer 2 · Maryland

Maryland Registered Agent Primer (2026): 6 Moves and the 3 Best Agents

If you are hiring for appointing a registered agent in Maryland in 2026, we rank MD Registered Agent.org ($99 a year), Mainstay Filing ($149 a year) and Maryland Registered Agent.co ($99 a year), in that order. 6 moves: the Maryland rule for a resident agent, who qualifies, the address test and how to record the agent.
From the Founder Primer desk

Key facts

Resident agent required?
Yes
Check it yourself at mgaleg.maryland.gov; we read it in October 2026
Service prices
$99 to $149 a year
Posted prices
Business Entity Annual Report
$300 a year
Check it yourself at dat.maryland.gov; we read it in August 2026
How many moves
6
First to last

After this primer

  • Why Maryland wants an agent on file
  • The address and eligibility rules
  • How to name or change the agent
  • How the agents compare

Our picks for Maryland

Five weighted criteria set the order (see how we score); three-year cost and to-dos cleared count most.

Our pick $99/yr, renewal $99

1. MD Registered Agent.org: best for founders based in the state

In Maryland, MD Registered Agent.org is number one: an in-state street address for the registered office, $99 a year.

It beats Mainstay Filing on three-year cost, a big part of the score.

Inside the price
  • An in-state office address
  • Scans of papers served on the LLC
In its favor
  • Costs less a year than Mainstay Filing
  • $99 a year, flat at renewal
Against it
  • Maryland only; other states need their own agent
  • Business Entity Annual Report stays your job
All fifty states $149/yr, renewal $149

2. Mainstay Filing: best for one agent for every state

Number 2 is Mainstay Filing, where a flat $149 a year, whatever state the LLC is in.

A $150 gap to MD Registered Agent.org over three years settles its place.

Inside the price
  • A street address for the registered office
  • Served papers scanned free, the same business day
  • Three government letters a year scanned at no charge
  • Also serves nonprofits, corporations, LPs and LLPs
In its favor
  • $149; renews at $149
  • Same price in all fifty states
Against it
  • MD Registered Agent.org costs $50 less a year
  • Reports need the formation package
In-state service $99/yr, renewal $99

3. Maryland Registered Agent.co: best for staying in one state

Maryland Registered Agent.co takes third; an in-state street address for the registered office, $99 a year.

It lists the same prices as MD Registered Agent.org.

Inside the price
  • An in-state office address
  • Scans of papers served on the LLC
In its favor
  • Costs less a year than Mainstay Filing
  • $99 a year, flat at renewal
Against it
  • Maryland only; other states need their own agent
  • Business Entity Annual Report stays your job

The Maryland picks compared

# Service Annual price Renewal price Three-year total
1 MD Registered Agent.org $99 $99/yr $297 Visit MD Registered Agent.org Partner link. We may earn money if you buy.
2 Mainstay Filing $149 $149/yr $447 Visit Mainstay Filing Partner link. We may earn money if you buy.
3 Maryland Registered Agent.co $99 $99/yr $297 Visit Maryland Registered Agent.co Partner link. We may earn money if you buy.

Posted prices, read November 13, 2026. Maryland charges the same either way.

How the Maryland agent is set up

  1. Move 1

    What Maryland wants from an agent

    Every LLC must name a registered agent with an in-state street address.

    Where this comes from: Check it yourself at mgaleg.maryland.gov; we read it in October 2026

  2. Move 2

    Who may serve

    A Maryland resident, or a Maryland corporation, LLC or limited partnership. Statute: Md. Code, Corps. & Ass'ns § 1-101(x).

  3. Move 3

    The address test

    The 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.

    Each service we rank gives you the in-state address.

  4. Move 4

    Self-serve or professional

    Qualifying owners can name themselves. The recommended agents cost $99 to $149 annually.

  5. Move 5

    File the agent's details

    New companies list the agent on the Articles of Organization. Replacing the agent later means filing again with the State Department of Assessments and Taxation (SDAT).

    Where this comes from: Check it yourself at egov.maryland.gov; we read it in October 2026

  6. Move 6

    Update when things change

    Anything the state sends about the Business Entity Annual Report goes to your resident agent. The filing costs $300 every year, due April 15.

    Where this comes from: Check it yourself at dat.maryland.gov; we read it in August 2026

The cost of this primer

Cost item Payee Figure
Registered agent service The provider $99 to $149 a year
Agent renewal The provider $99 to $149 a year
Business Entity Annual Report Paid to the state $300 every year

These are the official Maryland fees, cited below. The three-year line adds the filing fee, the year-two and year-three reports and any minimum tax.

How the marks came out

edged out on founder outlay over three years, worth 27%.

Add up three years and MD Registered Agent.org is $297, $150 below Mainstay Filing.

Common questions

Does Maryland force an LLC to keep a resident agent?

Yes. Every LLC must name a registered agent with an in-state street address.

Can I be my own resident agent?

Often. Run the two tests in moves 2 and 3.

Can I change my resident agent later?

Yes, any time. Move 5 shows how to file the change with the State Department of Assessments and Taxation (SDAT).

What does a registered agent cost in Maryland?

$99 to $149 per year for the agents listed.

What does the LLC pay the state each year?

The state collects the Business Entity Annual Report fee of $300 each time.

Which registered agent would you choose?

MD Registered Agent.org, Mainstay Filing and Maryland Registered Agent.co, best mark first.

Related primers

Sources, so you can check us

  1. For Maryland State Department of Assessments and Taxation the primer cites dat.maryland.gov, a page we went back to in August 2026.
  2. For Maryland State Department of Assessments and Taxation the primer cites dat.maryland.gov, a page we went back to in August 2026.
  3. For Maryland report due date the primer cites dat.maryland.gov, a page we went back to in August 2026.
  4. For Md the primer cites mgaleg.maryland.gov, a page we went back to in August 2026.
  5. For Maryland formation fee: Filing fee, official source the primer cites mgaleg.maryland.gov, a page we went back to in October 2026.
  6. For Maryland formation fee: Filing fee, official source the primer cites egov.maryland.gov, a page we went back to in October 2026.
  7. For Maryland registered agent statute the primer cites mgaleg.maryland.gov, a page we went back to in October 2026.
  8. pricing page at MD Registered Agent.org, pulled November 13, 2026
  9. Maryland service page at Mainstay Filing, pulled November 13, 2026
  10. pricing page at Maryland Registered Agent.co, pulled November 13, 2026