To file for an LLC in Maryland, submit Articles of Organization to the State Department of Assessments and Taxation (SDAT) with a $100 filing fee. You can mail a paper form for $100 or file online through Maryland Business Express for $150, since every online submission is automatically expedited for a mandatory $50 fee. Formation itself is a single document, but getting the business fully operational takes a handful of additional steps.
Pick a Name That Will Actually Clear
Your LLC name must be distinguishable from every other business entity already on file with SDAT. Search the Maryland Business Express database before you commit to anything. Two names that differ only in punctuation, spacing, or the addition of a corporate designator like “Inc.” won’t count as distinguishable, so have a backup ready.
Maryland law also requires the name to include “Limited Liability Company” or one of its abbreviations, “LLC” or “L.L.C.” A plain name like “Chesapeake Consulting” won’t pass; “Chesapeake Consulting LLC” will. Small discrepancies between the name you searched and the name you file trigger rejections, so match them exactly.
Appoint a Resident Agent and Set Your Principal Office
Every Maryland LLC must maintain both a principal office in the state and a resident agent authorized to receive lawsuits, government notices, and other legal documents.1Justia. Maryland Corporations and Associations Code Section 4A-210 – Principal Office and Resident Agent The resident agent can be an adult Maryland citizen or a Maryland corporation, LLC, LP, or LLLP. Your LLC cannot serve as its own resident agent.2Maryland Business Express. Register Your Business
The agent must have a physical Maryland street address. P.O. boxes don’t count. If you don’t have a Maryland address, or you’d rather keep your home address off the public record, commercial registered agent services are available for a yearly fee.
The principal office is a separate requirement: this is where you actually run the business or keep records. It can be a home, a rented office, or a coworking space. Both addresses go on the formation document.
Complete the Articles of Organization
The Articles of Organization is the document that creates the LLC. You can download the form from SDAT or complete it inside Maryland Business Express. Under Maryland law, the articles must contain three things: the LLC’s name, the address of its principal office in Maryland, and the name and address of its resident agent.3Maryland General Assembly. Maryland Code Corporations and Associations 4A-204 Optional provisions are allowed, such as a statement limiting members’ authority to act on behalf of the company.
The resident agent must sign the form to confirm they accept the appointment, and the people forming the LLC must sign too. Missing signatures are one of the most common reasons filings come back.
The Purpose section trips some filers up. Most people write broad language like “any lawful purpose,” which lets you shift your business activities later without amending the articles. Unless you have a reason to restrict the company’s purpose, keep it general.
Submit the Filing and Pay
You have two routes, and they cost different amounts.
- Online through Maryland Business Express: $150 total, made up of the $100 filing fee and a mandatory $50 expedited processing fee. A 3% convenience fee applies to credit card payments. You get immediate confirmation of receipt.4State Department of Assessments and Taxation. SDAT Corporate Charter Fee Schedule
- By mail: $100 for standard processing. Mail the completed Articles of Organization with a check or money order payable to “SDAT” to the State Department of Assessments and Taxation, Charter Division, 700 East Pratt Street, Suite 2700, Baltimore, Maryland 21202. Adding $50 for expedited service brings turnaround to roughly seven to ten business days.5Maryland Department of Assessments and Taxation. Articles of Organization
Standard mail processing can take several weeks depending on SDAT’s backlog. Once SDAT approves your filing, you’ll get a letter of acknowledgment confirming the LLC legally exists.
Why Filings Get Rejected
SDAT sends paperwork back for reasons that are almost always avoidable with a careful review:
- Name conflict with an existing Maryland entity. Verify availability right before filing, not weeks earlier.
- Missing resident agent signature.
- A P.O. box listed as the resident agent address or principal office.
- Incomplete fields or a payment that doesn’t cover the full fee.
- A name that omits “Limited Liability Company,” “LLC,” or “L.L.C.”
A rejection isn’t fatal, but it costs time. If you mailed the filing, fixing and resubmitting can add weeks.
Get an EIN From the IRS
After SDAT approves the LLC, apply for an Employer Identification Number from the IRS. This nine-digit number works like a Social Security number for the business, and you need it to open a business bank account, hire employees, and file federal taxes.6Internal Revenue Service. Get an Employer Identification Number
The IRS online application is free and takes about ten minutes. You’ll receive the EIN immediately. The application asks for the LLC’s legal name exactly as it appears on the Articles of Organization, a mailing address, and the Social Security number of the person the IRS considers the responsible party. Keep the SDAT approval letter handy so you can enter the exact formation date.
When you open a business bank account, bring the EIN confirmation letter, a copy of the Articles of Organization, and your operating agreement if you have one.7U.S. Small Business Administration. Open a Business Bank Account
Register for Maryland State Taxes
If your LLC will collect sales tax, have employees, or owe Maryland income tax, register with the Comptroller of Maryland through the Maryland Tax Connect portal. The Central Registration Application lets you sign up for sales and use tax, employer withholding, and income tax accounts in a single online session.8Comptroller of Maryland. Business Registration Guide – Maryland Tax Connect
Even a single-member LLC with no employees and no taxable sales may owe Maryland income tax on business profits. Those profits flow through to your personal Maryland return, and the Comptroller may require estimated quarterly payments if you expect to owe more than a minimal amount.
Put the Operating Agreement in Writing
Maryland doesn’t require the operating agreement to be written. Under state law, all initial members must agree to it, but the agreement can technically be oral.9Maryland General Assembly. Maryland Code Corporations and Associations 4A-402 A written agreement protects your limited liability status and gives you a clear record when disputes come up.10U.S. Small Business Administration. Basic Information About Operating Agreements
The biggest decision is whether the LLC will be member-managed or manager-managed. In a member-managed LLC, every owner participates in running the business. In a manager-managed LLC, one or more designated managers handle operations while other members stay passive. Most small LLCs with hands-on owners are member-managed. Silent investors or outside management usually push you toward manager-managed.
Beyond management structure, a solid agreement covers how profits and losses are split, what happens when a member leaves or joins, how much each member contributed, and what vote is required for major decisions. If the agreement is silent on how to amend it, Maryland law defaults to requiring unanimous agreement from all members.9Maryland General Assembly. Maryland Code Corporations and Associations 4A-402
Choose How the IRS Will Tax the LLC
How the IRS taxes your LLC depends on the number of members and whether you make an election. A single-member LLC is treated as a disregarded entity by default: the IRS ignores the LLC for income tax purposes and profits flow to your personal return on Schedule C. You’ll owe self-employment tax on those profits in addition to income tax.11Internal Revenue Service. Single Member Limited Liability Companies A multi-member LLC is taxed as a partnership by default, with profits passing through to each member’s return.
To have the IRS tax the LLC as a corporation, file Form 8832. The election can take effect no more than 75 days before the filing date and no later than 12 months after it.12Internal Revenue Service. Form 8832 Entity Classification Election Some owners go further and elect S-corporation status by filing Form 2553, which can reduce self-employment taxes once profits reach a certain level. The deadline for a new business to make the S-corp election is 75 days after formation. Talk to a tax professional before choosing anything other than the default.
Federal BOI Reporting No Longer Applies
If you’ve heard about the federal Beneficial Ownership Information (BOI) reporting requirement under the Corporate Transparency Act, it no longer applies to domestic entities. In March 2025, FinCEN issued a rule exempting all U.S.-formed entities from BOI reporting. Only companies formed under foreign law and registered to do business in the United States still have to file.13FinCEN. FinCEN Removes Beneficial Ownership Reporting Requirements for U.S. Companies and U.S. Persons A Maryland LLC formed domestically has no BOI report to file.
File the Annual Report Every April 15
Every Maryland LLC must file an Annual Report with SDAT by April 15 each year. The fee is $300.14Maryland Department of Assessments and Taxation. 2026 Form 1 Annual Report The first report is due the year after you form, even if the business earned no revenue and hasn’t started operating.15Maryland Business Express. Maintain Good Standing Status
The report asks for updated information about your business address, members, and any tangible personal property the company owns or leases in Maryland. If the business owns personal property (excluding licensed vehicles) with a total original cost of $20,000 or more, you also need to file the Personal Property Tax Return alongside the Annual Report.15Maryland Business Express. Maintain Good Standing Status
Missing April 15 puts the LLC out of Good Standing. Stay out long enough and the state can forfeit your charter, stripping away your limited liability protection and effectively dissolving the business. Reinstating a forfeited entity means paying all back fees and penalties. Set a calendar reminder in early March.