Statutory requirements, filing fees, and recommended services for Maryland businesses.
Verified against Maryland State Department of Assessments and Taxation · Updated 2026-04-30
Per Md. Code, Corps. & Ass’ns §4A-210, a Maryland registered agent must maintain a physical street address inside Maryland and accept service of process during ordinary business hours. The Maryland State Department of Assessments and Taxation records the agent’s name and address as part of the public business filing. This page documents how Maryland treats the registered agent designation under Md. Code, Corps. & Ass’ns §4A-210, the fees the Maryland State Department of Assessments and Taxation charges to file, and the practical mistakes that trip up first-time filers.
A Maryland registered agent is the individual or business entity that Md. Code, Corps. & Ass’ns §4A-210 requires every LLC and corporation to maintain as the official recipient of service of process, state tax notices, and Maryland State Department of Assessments and Taxation correspondence. The agent must keep a physical Maryland street address — P.O. boxes alone do not satisfy the statute — and must be reliably available during normal business hours. The Maryland State Department of Assessments and Taxation (SDAT) files the agent’s name and street address as part of the public business record, searchable by any member of the public through the agency’s online entity database.
Five state-specific gotchas account for most of the registered agent problems we see in Maryland filings.
Listing a P.O. box or commercial mailbox. Md. Code, Corps. & Ass’ns §4A-210 requires a physical street address, and the Maryland State Department of Assessments and Taxation returns filings that list anything other than a real Maryland street. Commercial mailbox services without a registered street component (typical UPS Store-style addresses) are routinely rejected.
Using a non-Maryland address. The agent’s address must be physically inside Maryland. Out-of-state owners cannot list their own home address; they must either hire a commercial agent or designate a Maryland-resident individual.
Letting the agent designation lapse without filing a Statement of Change. When a commercial agent service is terminated and a replacement is not filed with the Maryland State Department of Assessments and Taxation, the LLC enters a compliance gap. The $25 change fee is trivial compared with the cost of administrative dissolution and reinstatement.
Missing the annual report deadline. Maryland’s annual report is due annually by April 15 (Personal Property Return), and the registered agent is the only party who receives mailed reminders from the Maryland State Department of Assessments and Taxation. If the agent is unreliable, the entity can miss the deadline silently.
Maryland’s $300 Personal Property Return must be filed even by LLCs that own zero personal property — owners often skip it assuming the property-tax framing means it is optional. SDAT treats nonfiling as administrative forfeiture grounds.
The registered agent designation in Maryland is filed as part of the Articles of Organization, submitted to the Maryland State Department of Assessments and Taxation’s business filings division. Most filers use the Maryland Business Express portal, which accepts the formation document, the agent designation, and the $100 filing fee in a single transaction. Online submissions typically clear in two to seven business days; paper filings can take two to four weeks depending on agency workload.
Maryland LLCs file a $300 annual Personal Property Return with the State Department of Assessments and Taxation (SDAT) by April 15 — the report doubles as a property tax return whether or not the LLC owns property. This is one of the highest standing annual fees in the country.
Once the entity is on file, the registered agent’s role continues for as long as the LLC or corporation exists. Maryland’s ongoing maintenance is handled through an annual report at $300, due annually by April 15 (Personal Property Return), and any subsequent change of registered agent is filed with the Maryland State Department of Assessments and Taxation via a Statement of Change at a $25 fee. The agent must file a written consent or, where the agency requires, sign the formation document itself — the Maryland State Department of Assessments and Taxation rejects designations that lack agent consent.
National registered agent services — Northwest Registered Agent, Mainstay Filing, ZenBusiness, and LegalZoom — operate in Maryland with the same pricing and feature set they offer in every other state. For most Maryland LLCs and corporations, a national provider is the right choice: consistent pricing, an online dashboard with scanned mail, and same-day acceptance of service of process. Northwest’s $125/year tier and Mainstay Filing’s $99/year tier are the two most common picks for Maryland businesses that want privacy and reliability without paying premium prices.
A Maryland-specific provider like Maryland Registered Agent.co makes sense in narrower cases. State-focused agents tend to specialize in Maryland filings only, which can mean faster local turnaround on Statements of Change, deeper familiarity with the Maryland State Department of Assessments and Taxation’s portal, and a single jurisdiction to worry about. For business owners who plan to operate exclusively in Maryland and value a local-only operator, a state-specific provider is often a better cultural fit than a multi-state brand. The tradeoff is interface polish: state-specific services usually lack the dashboard depth and mail-forwarding automation of the national services.
| # | Service | Price/yr | Best for |
|---|---|---|---|
| 1 | Northwest Registered Agent | $125 | privacy-focused customers |
| 2 | Mainstay Filing Best Value | $99 | balanced value |
| 3 | ZenBusiness | $199 | new businesses bundling formation |
| 4 | LegalZoom | $249 | customers wanting brand-name support |
Maryland-specific option: Maryland Registered Agent.co operates exclusively in Maryland and specializes in same-state filings. Best for businesses that want a state-focused provider with local-only operations.
| Physical address required | Yes — must be a street address in Maryland |
|---|---|
| P.O. box allowed | No |
| Business hours availability | Required during normal business hours |
| Resident requirement | Maryland resident OR authorized business entity |
| Listed in public record | Yes — searchable via Maryland State Department of Assessments and Taxation |
| Statute reference | Md. Code, Corps. & Ass'ns §4A-210 |
| Filing Type | Fee | Renewal | Renewal Fee |
|---|---|---|---|
| LLC formation (Articles of Organization) | $100 | annually by April 15 (Personal Property Return) | $300 |
| DBA / Fictitious Name | $25 | Every 5 years | $25 |
| Registered Agent change | $25 | — | — |
| Annual Report | $300 | annually by April 15 (Personal Property Return) | $300 |
Yes — if you are a Maryland resident with a physical street address and are available during business hours.
Yes. Maryland law requires every LLC to maintain a Maryland-based registered agent regardless of where the owner lives.
The Maryland State Department of Assessments and Taxation can administratively dissolve your business after approximately 60 days of non-compliance.
Yes — file a Statement of Change of Registered Agent with the Maryland State Department of Assessments and Taxation for $25.
$50–$150 per year for commercial services; free if you self-serve.
Yes. The agent's name and address are searchable via the Maryland State Department of Assessments and Taxation business records.
Same-day with most commercial services; same-business-day filing if submitted online before the daily cutoff.
This page provides general information about Maryland registered agent requirements, not legal advice. Filing fees and procedures may change; verify current details with the Maryland State Department of Assessments and Taxation before filing. We may receive compensation from services listed in our comparisons; this does not influence our editorial selections.