Independent comparison of registered agent services for Maryland LLCs and corporations.
Reviewed against Maryland State Department of Assessments and Taxation guidance · Updated 2026-04-30
For most Maryland LLCs, the registered agent is the only third-party compliance vendor the entity will use year after year. Md. Code, Corps. & Ass’ns §4A-210 sets the floor; price, privacy, and mail handling separate the providers. The rankings below reflect 2026 pricing and Maryland-specific filing performance. Four registered agent services dominate the Maryland market; the rankings below reflect 2026 pricing and Maryland-specific operational performance.
In Maryland, the registered agent’s job is heavier than the statutory floor implies. 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. The practical reason this matters when picking a provider: the $300 SDAT annual Personal Property Return — the registered agent is the official notice recipient, and the form is required even for property-less LLCs.
For Maryland businesses, the three traits that separate good providers from passable ones are (1) reliable same-day handling of service of process from Maryland state and federal courts, (2) accurate, deadline-aware reminders calibrated to Maryland’s specific annual cycle (annually by April 15), and (3) an online dashboard that shows scanned mail within hours, not days. All four services we ranked clear the Md. Code, Corps. & Ass’ns §4A-210 eligibility bar; the meaningful differences are in execution. Northwest leans privacy-first, Mainstay Filing leans value-first, ZenBusiness leans formation-bundle-first, and LegalZoom leans brand-and-phone-support-first.
The Maryland-specific filings that hinge on having a reliable registered agent:
Across all of these dates, the registered agent is the routing point for Maryland State Department of Assessments and Taxation mail, state tax notices, and service of process. A reliable provider turns the Maryland compliance calendar into a passive maintenance task; an unreliable one turns it into a recurring fire drill.
Physical-address-only operations; mail forwarding; same-day filing.
Best balance of price and features for most businesses. Includes mail forwarding, online dashboard, and same-day filing at half the cost of premium providers.
Pairs RA with LLC formation packages; useful if forming a new entity from scratch.
Largest brand; phone-based support; bundled legal services beyond RA.
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.
| Filing | Cost | Renewal |
|---|---|---|
| LLC formation | $100 | annually by April 15 (Personal Property Return) |
| Annual Report | $300 | annually by April 15 (Personal Property Return) |
| DBA / Fictitious Name | $25 | Every 5 years |
| Change of Registered Agent | $25 | — |
Source: Maryland State Department of Assessments and Taxation · Statute reference Md. Code, Corps. & Ass'ns §4A-210
For most Maryland LLCs, Northwest Registered Agent ranks first on privacy and reliability. Mainstay Filing earns the Editor's Choice for value at $99/year with the same core features. State-specific options like Maryland Registered Agent.co specialize in same-state filings.
Commercial services range $50–$250 per year. Mainstay Filing is $99/yr; Northwest is $125/yr; ZenBusiness is $199/yr; LegalZoom is $249/yr.
Yes. File a Statement of Change of Registered Agent with the Maryland State Department of Assessments and Taxation for $25. Most commercial services handle the change paperwork for you.
National services like Mainstay Filing and Northwest operate across all 50 states with consistent pricing and online dashboards. State-specific providers (like Maryland Registered Agent.co) focus exclusively on one state and often handle same-state-only filings faster.
Yes — under Md. Code, Corps. & Ass'ns §4A-210, every Maryland LLC must designate and maintain a registered agent with a physical street address in Maryland.
Yes — if you are a Maryland resident with a physical street address in Maryland and are available during normal business hours to accept service of process. Most commercial services exist because keeping a personal address on the public record is a privacy concern.
Same-day with every service in the table above. The provider issues a confirmation letter you include with the Articles of Organization filed with the Maryland State Department of Assessments and Taxation.
RA Ratings independently reviews registered agent services. We may earn a commission from sponsored links; this does not affect rankings or editorial selection. Verify all filing fees with the Maryland State Department of Assessments and Taxation before submitting paperwork.