Business formation folders and a closed laptop on a lamp-lit desk, Maryland Foreign LLC Registration

Maryland Foreign LLC Registration: Qualifying an Out-of-State LLC

Maryland Foreign LLC Registration: Qualifying an Out-of-State LLC

If your LLC was formed in another state and you want to do business in Maryland, you generally need to register it with the State Department of Assessments and Taxation (SDAT) before you start. This guide covers what SDAT asks for, what it costs, how long it takes, and what happens if you skip the step.

This is informational content, not legal or tax advice. Maryland's registration rules turn on facts specific to your business. Talk to a Maryland attorney before you decide whether you need to register, and to a CPA about how your LLC's income is taxed in Maryland.

What counts as a foreign LLC in Maryland

An LLC formed under another state's law is a foreign LLC in Maryland. Under Corporations and Associations Article 4A-1002, a foreign LLC registers with SDAT before it does business in the state. The filing is the Foreign LLC Registration. Maryland does not call it a Certificate of Authority, so if you see that term in a search result for another state, it does not describe the Maryland filing.

Many owners searching for a maryland foreign llc or maryland foreign qualification are really asking one question: does my business have to register at all? That depends on whether the LLC is doing business in Maryland, and that is where the rules get less clear.

Does your business count as doing business?

SDAT does not define a bright line for doing business on the Foreign LLC Registration form. Selling online to Maryland customers is not automatically the same as doing business in the state, and it is not automatically exempt either. Facts that usually matter include having an office, employees, inventory, or a regular in-state presence, and performing ongoing work in Maryland rather than an isolated transaction.

Because the line is a judgment call, do not decide on your own that you are exempt. If you are unsure, get a Maryland attorney's read on your specific facts before you file or before you decide not to file.

What SDAT requires

Gather these items before you start the registration:

  • The Foreign LLC Registration form. SDAT's version is revised August 2024. Start from the SDAT business services page at dat.maryland.gov.
  • Proof of good standing from your home state, issued within the last 60 days.
  • A Maryland resident agent with a Maryland street address. A P.O. box does not qualify.
  • The $100 filing fee, plus any expedite or convenience charges you choose.
  • The $200 penalty, but only if your LLC already did business in Maryland before registering. More on that below.

Fees and processing time

These are the figures from SDAT's fee schedule as revised in May 2024. Confirm the current amounts on SDAT's site before you pay, because fee schedules change.

ItemCostNotes
Foreign LLC filing fee$100Standard registration fee
Expedited review$50 extraReviewed in 7 to 14 business days
Same-day online service$325 extraListed on the schedule as same-day online. Confirm that it applies to a foreign registration on the SDAT fee page.
Same-day paper drop box$425 extraFor paper filings delivered in person
Business Express card payments3% convenience feeCharged on payments made through Maryland Business Express
Late registration penalty$200Required only if the LLC did business in Maryland before registering

Standard review is slower. Under SDAT's current LLC processing rules, non-expedited filings are reviewed during the second calendar month after submission, and paper filings can take about 8 weeks. Confirm whether that timing applies to foreign registrations. If you need the registration in hand quickly, the expedited options above cut the wait to 7 to 14 business days.

Good standing: the 60-day rule

SDAT requires proof that your LLC is in good standing in its home state, and the proof must be issued within the last 60 days before you file. Order the certificate from your home state's filing office, which is usually the Secretary of State. Formats, fees, and turnaround times vary by state, so check your home state's process directly.

Before you order it, confirm that your LLC is current on its home state filings. A delinquent annual report at home can stop you from getting a clean good standing certificate, and it will hold up your Maryland registration with it.

The resident agent and SDAT as a fallback

Maryland calls this a resident agent. The agent can be a Maryland citizen over 18, a Maryland corporation, or a Maryland LLC, and it must have a Maryland street address. Many out-of-state owners hire a commercial registered agent in Maryland because they do not have a local contact. Annual agent fees vary by provider, so compare prices and confirm what each one includes.

If you name no agent, or the agent cannot be found, SDAT becomes your agent for service of process at no added fee. That is a backstop, not a plan. Legal papers served on SDAT reach you later than papers delivered to an agent you control, which can cost you time on a deadline. Changing the agent or the agent's address later costs $25 per entity.

The $200 penalty and what happens if you skip registration

If your LLC did business in Maryland before it registered, it must send a $200 penalty with the registration under Article 4A-1007(d). The penalty is in addition to the $100 filing fee, so the total for a late filer starts at $300 before any expedite charges.

Skipping registration has consequences beyond the penalty. An unregistered foreign LLC cannot sue in Maryland courts until it registers and pays. That matters most when you need to collect on a Maryland customer contract or enforce a lease.

The good news is that failing to register does not void the LLC's contracts. Under Article 4A-1007(b), the contracts remain in place. The cost of skipping is the loss of your ability to sue in Maryland courts and the penalty, not the loss of the deal itself.

Step-by-step filing

  1. Confirm your home state status. Make sure the LLC is active and current on its filings, then order the good standing certificate.
  2. Appoint a Maryland resident agent. Get the agent's consent in writing and confirm the Maryland street address.
  3. Check your name in Maryland. Search the SDAT business entity search at egov.maryland.gov/businessexpress/entitysearch. If your name is already used by an entity on file with SDAT, confirm with SDAT what your options are before you file.
  4. Complete the Foreign LLC Registration form and attach the good standing certificate dated within the last 60 days.
  5. Add the right amount. Include the $100 fee, any expedite or convenience charges, and the $200 penalty if the LLC already did business in Maryland.
  6. File through Maryland Business Express or by paper.
  7. Keep the accepted record. Save the SDAT confirmation and the accepted filing for your files and for banks, landlords, and licensing agencies that will ask for it.

What you receive: the maryland certificate of registration

Many owners search for a maryland certificate of registration, and it is reasonable to expect a stand-alone document. What you file is the Foreign LLC Registration, and SDAT's acceptance of that filing is what establishes your registration in Maryland. Confirm with SDAT whether it issues a copy of the accepted filing, and how to order one, before you rely on a specific document for a bank or a licensing office.

Foreign corporations are a different filing

If you are looking for maryland foreign corporation registration, this guide does not apply. A corporation is a different entity type, and SDAT handles corporate filings through its Charter Division. Confirm the corporation requirements with SDAT before you file.

Sales tax is a separate question

The Comptroller of Maryland has an economic nexus rule for sales tax that uses $100,000 in sales or 200 transactions. Meeting that threshold creates a sales tax obligation that the Comptroller administers. It does not by itself require registration with SDAT. The state sales tax rate is 6%. Sales tax permits are obtained through the Combined Registration Application at businessexpress.maryland.gov. Confirm the threshold and your obligations with the Comptroller at marylandcomptroller.gov before you assume either way.

After registration: ongoing requirements

  • Annual report. Maryland's LLC Annual Report and Business Personal Property Return (Form 1) costs $300 and is due April 15 each year. Extension requests go to pprextensions.dat.maryland.gov. Confirm with SDAT whether and how this applies to your foreign LLC.
  • Trader's license. Many businesses that sell goods need a trader's license from the Clerk of the Circuit Court in their county. The license year runs May 1 through April 30, and growers and manufacturers are exempt. You need a Sales and Use Tax License from the Comptroller first. The Clerk cannot issue the license if you owe personal property tax or have missing SDAT filings, which is one more reason to keep your filings current.
  • Income tax. Maryland does not impose a separate franchise tax on ordinary LLCs. An LLC is a pass-through for income tax, so its members report income on their Maryland personal returns. The state personal income tax rate runs 2% to 6.5%, plus a county or Baltimore City rate of 2.25% to 3.30% for 2026. Nonresident members and multi-state owners should confirm their filing obligations with a CPA.

Common mistakes to avoid

  • Filing with a good standing certificate older than 60 days.
  • Naming a P.O. box as the resident agent address.
  • Assuming online sales never count as doing business, or assuming they always do, without advice.
  • Forgetting the $200 penalty when the LLC already did business in Maryland.
  • Treating the SDAT filing as the last step, when the Comptroller, the county Clerk, and the annual report may also apply.

When to get professional help

Registration is a clerical filing once you know you need it. The harder question is whether your activity in Maryland is enough to require it, and what your tax position looks like afterward. If your LLC has employees, a Maryland office, inventory in the state, or significant in-state customers, talk to a qualified Maryland attorney before you file. For tax questions, talk to a CPA who works with multi-state LLCs.

Official resources

Keep exploring: related Maryland guides