How to Start an S Corp in Maryland (and When an LLC Should Elect)

If you want S corporation tax treatment in Maryland, you have two routes. You can form a Maryland corporation and file for S status, or you can form a Maryland LLC and elect to be taxed as an S corporation. Both end up with the same federal tax treatment, but the state filing fee, the paperwork, and the ongoing obligations are not identical. This guide walks through the steps for a maryland s corp, explains how the maryland s corp election works, and helps you decide whether a maryland llc taxed as s corp is the better fit.

This is informational content, not legal or tax advice. Confirm your structure with a Maryland CPA or attorney before you file, especially if you have more than one owner, outside investors, or a business that already has income or debt.

The Short Answer: An S Corp Is a Tax Election, Not a Company Type

The S corporation is a federal tax election made on IRS Form 2553. It is not a separate entity you form with the state. Maryland follows the federal election for state income tax, so S treatment you get federally carries over to your Maryland return. What you actually form with the State Department of Assessments and Taxation (SDAT), Charter Division, is either a corporation or an LLC. The S election is an add-on to whichever one you pick.

That distinction drives the decision. The table below compares the two paths for a maryland s corporation with the numbers verified for Maryland.

Item	Maryland corporation with S election	Maryland LLC with S election
State formation document	Articles of Incorporation, filed with SDAT	Articles of Organization, filed with SDAT
State filing fee	$120	$100
Federal S election	Form 2553, filed with the IRS	Form 2553, filed with the IRS
Annual report	$300, due April 15 each year	$300, due April 15 each year
Name requirement	Confirm the current name rules with SDAT	Must include Limited Liability Company, L.L.C., LLC, L.C., or L C
Internal governance	Bylaws, board, officers, and stock	Operating agreement and members

What You Need Before You Start

Gather these items before you open the state filing portal. Most delays come from missing one of them.

• A business name you have checked. Search the SDAT entity database at egov.maryland.gov/businessexpress/entitysearch.
• A Maryland resident agent. This is a person or entity with a Maryland street address, and the agent must consent before you file.
• Your owners and their ownership percentages. You will need them for the corporate records, the operating agreement or bylaws, and the IRS consent on Form 2553.
• A federal Employer Identification Number (EIN). You get this free from the IRS. You need it for the S election and for payroll.
• A card for the state filing fee. The filing fee is $120 for a corporation or $100 for an LLC, plus any expedite fee you choose.
• A plan for the annual report. Put the $300 annual report and its April 15 due date on your calendar before you file.
• A CPA who has reviewed your numbers. The S election changes how you pay yourself and how you file each year, so have a professional model it first.

Step 1: Choose the Entity Type First

Pick the entity type before you file anything, because the state form and the governance documents depend on it. A corporation is the classic S corp structure. It fits best if you expect to bring in investors, want a board of directors, plan to issue stock to several people, or want a structure that outside lenders and buyers already understand.

An LLC gives you more flexibility. You write the rules in an operating agreement, and the state filing is less expensive at $100 instead of $120. If you elect S status, the LLC is taxed like a corporation for federal income tax purposes, so the same reasonable salary and payroll rules apply. The main practical question is whether you want the corporate formalities of a corporation or the lighter structure of an LLC. Neither choice gives you a Maryland tax advantage by itself.

Step 2: Check and Reserve Your Name

Your name must not be misleadingly similar to another LLC, corporation, trade name, limited partnership, or limited liability partnership on file with SDAT. Run the search before you file, and do it again the day you submit, because names can be taken in the meantime.

If you need time to finish your paperwork, you can reserve the name for 30 days for a $25 fee. The form is at dat.maryland.gov (name reservation form). If you plan to operate under a name that differs from your legal name, that is a separate filing. A trade name registration costs $25 standard, or $75 total with the $50 expedited fee, and it is filed with SDAT, not your county.

Step 3: Appoint a Maryland Resident Agent

Maryland calls this a resident agent. The agent can be any Maryland citizen over age 18, a Maryland corporation, or a Maryland LLC. The agent must have a Maryland street address. A P.O. box does not qualify.

Two rules trip people up. First, the resident agent must sign the Articles, and you must have the agent's consent before you file. Second, the agent is the person the state uses for legal notices, so choose someone who will stay reachable for years. Changing the resident agent or the agent's address later costs $25 per entity.

Step 4: File the Articles With SDAT

File through Maryland Business Express at egov.maryland.gov/businessexpress. The filing fee is $120 for a corporation (Articles of Incorporation) or $100 for an LLC (Articles of Organization).

Processing time depends on how you file. For an LLC, a standard online filing is reviewed during the second calendar month after you submit it, and a paper filing takes about 8 weeks. The LLC expedite options are:

• Expedited review: $50 extra, reviewed in 7 to 14 business days.
• Online rush: $325 extra, reviewed within 3 hours if you submit by 2:30 p.m. on a business day.
• Same-day paper drop box: $425 extra.

Confirm with SDAT which expedite options and processing times apply to a corporation filing before you pay for rush service. Once SDAT accepts the filing, keep the stamped Articles in your company records. Banks, the IRS, and the Comptroller will all ask for them.

Step 5: Set Up Governance Documents and Your EIN

The state filing creates the company. The governance documents make it run correctly, and they matter more once you have multiple owners.

For a corporation, adopt bylaws and hold an organizational meeting or written consent. Elect directors and officers, and issue stock to each shareholder with a record of what each person paid. For an LLC, write an operating agreement that covers member ownership, voting, distributions, and what happens if a member leaves. Even a single-owner LLC benefits from one, because a bank will ask for it.

Get your EIN from the IRS before you file Form 2553, and open a business bank account in the company's name. Keep company money out of your personal account from day one. Commingled funds are one of the easiest ways to weaken the liability protection you formed the company to get.

Step 6: File Form 2553 With the IRS

This is the step that makes the company an S corp for tax purposes. You file Form 2553 with the IRS, not with Maryland. Maryland then follows the federal election for state income tax.

Form 2553 has several requirements that catch owners off guard:

• Consent from every shareholder or member. Each owner must sign the consent section. A missing signature can invalidate the election until it is fixed.
• Eligibility. The company must meet IRS tests, including limits on who can own shares, a single class of stock, and a domestic business. Certain owners, such as partnerships, corporations, and nonresident aliens, can make the company ineligible.
• Timing. The election generally must be filed no more than 2 months and 15 days after the beginning of the tax year it is supposed to cover. A brand new company's first tax year usually starts when it begins doing business or acquires its owners and assets, so file early. Confirm the current deadline and any late-election relief at irs.gov (About Form 2553).

If your timing is already tight, talk to your CPA about the effective date before you file. A late S election can leave you taxed as a partnership or sole proprietorship for a year you expected to be an S corp.

Step 7: Register for Maryland Taxes and Payroll

Your business needs several Maryland registrations depending on what it does and whether it has employees.

• Sales and use tax license. If you sell taxable goods, you need a sales tax permit from the Comptroller of Maryland. It is free and is obtained through the Combined Registration Application at businessexpress.maryland.gov (taxes and insurance). The state sales tax rate is 6%.
• Trader's license. If you sell goods, you usually need a trader's license from the Clerk of the Circuit Court in your county. The license year runs May 1 through April 30. Growers and manufacturers are exempt. The Clerk cannot issue one before the free sales tax license is in place, and cannot issue one if you owe personal property tax or have missing SDAT filings. Confirm the current fee with your county Clerk.
• Payroll registration. As an S corp shareholder who works in the business, you will normally pay yourself a W-2 salary. Register for withholding and any other payroll accounts with the Comptroller before your first payroll, and confirm the requirements at marylandcomptroller.gov.

Corporate income tax is handled on the Comptroller side too, but the rules for an S corp differ from a C corp. Confirm your annual state tax filings with your CPA.

Step 8: Calendar the Annual Report and Federal Returns

Maryland requires the Annual Report and Business Personal Property Return (Form 1) every year, with a $300 fee for both corporations and LLCs. It is due April 15. If you need more time, request an extension at pprextensions.dat.maryland.gov.

On the federal side, an S corporation generally files Form 1120-S, and each owner receives a Schedule K-1 for their share of income. For calendar-year companies, that return is generally due March 15. Confirm your due dates with your CPA, because a missed federal or state deadline can cost more than the filing itself.

What the S Election Does and Does Not Do in Maryland

Many owners assume the S election saves money on Maryland taxes the way it can in states with an entity-level franchise tax. In Maryland, the savings are not automatic, and the state does not add a franchise tax to ordinary LLCs that you would avoid by electing S. Here is how the pieces fit:

• The federal election carries over. Maryland follows the S election for state income tax.
• No separate Maryland franchise tax on the S election itself. There is no Maryland-specific S corp cost saving to count on.
• Corporate income tax. A regular C corporation pays a flat 8.25% of Maryland taxable income. An S corporation generally passes its income through to shareholders instead. Confirm how Maryland treats your specific income with your CPA.
• Owner income tax. Shareholders pay Maryland personal income tax on their share of the income. The state rate is graduated from 2% to 6.5%, plus a county or Baltimore City local income tax of 2.25% to 3.30% for 2026.
• Local tax follows the owner. The local income tax is paid by the shareholder based on the county where that shareholder lives, not where the business operates. Two owners in different counties pay different local rates on the same company.
• Pass-through entity tax election. Maryland has a separate pass-through entity tax election that interacts with S status. It is covered separately, and you should not make that election without modeling it with a CPA.

When an LLC Should Elect S Status

An LLC with an S election makes the most sense when the business is consistently profitable and the owners can run it with a reasonable salary plus distributions. The election can change how self-employment and payroll taxes are calculated, which is the main reason owners consider it. The trade-off is more administration: payroll, a separate federal return, and tighter rules about distributions.

An LLC without the S election may be the better choice when profits are small or uneven, when you want the simplest possible bookkeeping, or when the cost of running payroll and filing an extra return would eat up the potential savings. This guide does not set a profit number that triggers the election. Ask your CPA to model your salary, distributions, and the Maryland side of the return before you file Form 2553.

The "maryland llc vs s corp" question is often really a question about whether you want the flexibility of an LLC or the formal structure of a corporation. The tax result of the S election itself is the same whichever state form you choose.

Common Mistakes to Avoid

1. Missing the Form 2553 deadline. The election has a tight window, and a late filing can push S treatment into a later tax year.
2. Leaving out a shareholder's consent. Every owner must sign. A missing signature is one of the most common reasons an election is rejected or delayed.
3. Electing S with an ineligible owner. Adding an LLC, partnership, or nonresident alien as an owner can end eligibility. Check owners before you issue shares or membership interests.
4. Paying yourself nothing or too little. A shareholder who works in the business generally needs a reasonable W-2 salary before taking distributions.
5. Using a P.O. box for the resident agent. Maryland requires a street address, so a P.O. box filing can be rejected or left noncompliant.
6. Forgetting the April 15 annual report. The $300 fee is due every year, whether or not the company earned money.
7. Assuming a Maryland tax saving. The S election is valuable for federal and payroll reasons. It does not replace the Maryland income tax your owners already pay.
8. Ignoring the county tax. Local income tax depends on where each owner lives, so a multi-owner company has to plan for more than one local rate.
9. Mixing business and personal money. Commingled accounts weaken liability protection and make the annual return harder to prepare.

Tips for a Smoother Filing

• Settle the entity type and owners first. Changing from an LLC to a corporation after filing means more paperwork and more fees.
• Use the name reservation if you are waiting on a decision. A $25 reservation holds the name for 30 days while you finish the rest.
• Pay for expedited review only if you need speed. The standard LLC review is slower but costs nothing extra.
• File Form 2553 early in the tax year. Earlier filing leaves more room to fix mistakes before the deadline.
• Keep the Articles, EIN letter, and Form 2553 acceptance together. Your bank, payroll provider, and CPA will ask for all three.
• Put the April 15 annual report and the federal return dates on one calendar. Both deadlines are easy to forget in the first year.

Expected Results

Completing these steps may give you a valid Maryland entity, a federal S election that the IRS has accepted, and a clear compliance calendar. Owners who choose S status often report that it changes how their self-employment and payroll taxes are calculated, but the actual result depends on profit, salary, deductions, and each owner's situation. Treat the S election as a tax planning tool to test with a CPA each year, not as a guaranteed saving.

Disclaimer and Next Steps

This article is informational content about Maryland business formation and is not legal or tax advice. Tax rules, fees, and deadlines change. Verify current figures on the agency pages linked above before you file. If your business has multiple owners, outside investors, existing debt, or a history of losses, speak with a qualified Maryland CPA and business attorney before you choose a structure or file Form 2553.