Annual Requirements for a Maryland Limited Partnership

Maryland's core recurring obligation for a limited partnership is the Annual Report and Personal Property Return, filed with the State Department of Assessments and Taxation. It combines two functions in one filing: it confirms the partnership is still active and reports any business personal property the LP owns in Maryland for local assessment.

The return is filed through SDAT — the annual filing portal is reachable via Maryland Business Express, and the current year's form is published on the SDAT forms page. This is not a financial performance report; you are not disclosing revenue or profit. It is a compliance filing that keeps the entity in good standing and captures property information for assessment.

Why it exists

Maryland uses the annual return to keep its business registry current and to administer the personal property assessment that funds local government. Because it does double duty, it carries a real annual fee — larger than the token amounts many states charge — and it applies whether or not the LP actually owns any taxable property.

The deadline is April 15 every year, and it is fixed by the calendar — not tied to the anniversary of your formation. This is different from many states, where the annual report is due on the month the entity was formed. In Maryland, every LP shares the same April 15 date.

Timing tips

• Because April 15 coincides with the federal individual tax deadline, it is easy for the annual return to get lost in tax-season noise. Set a separate reminder.
• If April 15 falls on a weekend or holiday, confirm the effective due date, but plan around the 15th to be safe.
• An extension may be available for the personal property portion in some circumstances — check the current SDAT guidance — but do not assume one applies automatically.

First-year timing

A newly formed LP is generally expected to file its first Annual Report and Personal Property Return in the year following formation, by the April 15 that follows. Confirm your first filing year based on when SDAT accepted your certificate, and do not let an early formation lull you into thinking you can skip the next April 15.

Missing the April 15 deadline is not a minor slip. Maryland escalates from late notices toward loss of good standing and, ultimately, forfeiture of the partnership's right to do business in the state.

The progression

• Late filing: The return is overdue, and interest or penalties may attach to any personal property assessment owed.
• Loss of good standing: An LP that fails to file falls out of good standing, which can block financing, real estate closings, and qualification to operate in other states.
• Forfeiture: Continued failure can lead SDAT to forfeit the entity's right to transact business. A forfeited LP has to be revived, which is more disruptive and expensive than filing on time.

For a limited partnership, forfeiture is especially unwelcome because the general partner's liability is unlimited — an entity in bad standing invites problems the general partner may end up answering for personally. The straightforward fix is simply to file by April 15.

The "Personal Property Return" half of the filing is where Maryland differs most from other states. If your LP owns business personal property in Maryland — furniture, fixtures, equipment, inventory in some cases — you report it, and the county assesses it for property tax.

What this means in practice

• A partnership with no Maryland business personal property still files the return, but reports no assessable property.
• A partnership that owns equipment or fixtures in Maryland reports them, and the local jurisdiction issues an assessment that can lead to a personal property tax bill.
• The tax consequences vary by county, since local jurisdictions set their own rates.

This is a genuine cost consideration for asset-heavy LPs, and it is worth discussing with an accountant if the partnership will hold significant property in the state.

The annual return is the headline, but keeping an LP in good standing involves a few other steady habits.

Keep the resident agent current

Your Maryland resident agent must remain valid and reachable at a physical Maryland street address. If the agent moves, resigns, or you switch providers, file the change with SDAT promptly. An invalid agent puts the LP out of compliance regardless of the annual return, and it risks a missed lawsuit becoming a default judgment against the general partner.

File your federal partnership return

Separate from the state filing, the LP files a federal Form 1065 each year and issues Schedule K-1s to the partners. Partners then report their shares on their personal returns. This is a federal obligation with its own deadline — do not confuse it with the April 15 SDAT return.

Update the certificate when things change

If the partnership changes its name, principal office, or general partners in a way that must be reflected in the public record, file the appropriate amendment with SDAT. Keeping the certificate accurate is part of good standing.

How Mainstay Filing helps

We track the April 15 deadline for you and can prepare and file the Annual Report and Personal Property Return so it never slips through tax-season cracks. As your resident agent, we also keep that side of your compliance current and forward anything SDAT sends. The aim is that good standing takes care of itself while you run the business.