511: Maryland Pass-Through Entity Election Income Tax Return (2025)
Maryland · Comptroller of Maryland · Used for tax years 2025
Maryland Form 511 is the 2025 income tax return for pass-through entities that elect to remit tax on all members' shares of income. It reports taxable income allocable to Maryland, the election tax, payments and credits, and any balance due or overpayment.
Who files this form
Maryland Form 511 is for pass-through entities (PTEs) that elect to pay tax on all members’ shares of income for tax year 2025.
The form lists these entity types: S corporation, partnership, limited liability company, and business trust.
What you'll need
Have the information needed to complete the return:
- The entity’s name, mailing address, nine-digit FEIN, organization or incorporation date, and six-digit business activity code.
- Member names, addresses, Social Security numbers or FEINs, residency information, and shares of income, tax paid, and tax credits for Schedule B.
- Member ownership percentages, or profit/loss percentages if applicable, and taxable income information.
- Amounts paid with Forms 510/511D, 510/511E, and MW506NRS, if applicable.
- Bank account type, routing number, account number, and account name if requesting direct deposit.
Attachments when applicable: Attach Maryland Schedule K-1 (510/511) when claiming credit for tax paid by another PTE. Schedule A calls for attached schedules for other income and other tangible assets. If reporting previously unreported IRS adjustments, submit amended returns with copies of the IRS adjustment reports under separate cover.
How to file
Paper filing: Print using blue or black ink. Complete the applicable return sections and member information in Schedule B. A general partner, officer, or member signs the return. A paid preparer must provide a signature and PTIN.
Mail to:
Comptroller of Maryland
Revenue Administration Division
110 Carroll Street
Annapolis, Maryland 21411-0001
Make a check or money order payable to Comptroller of Maryland. Include the FEIN, tax year, and tax type on the payment in blue or black ink. The form marks a place to staple the check.
Electronic filing: You must file Form 511 electronically to pass business tax credits from Form 500CR and/or Form 502S to members.
Common mistakes
- Leaving identifying details off a payment: The form warns that omitting the FEIN, tax year, or tax type will delay payment processing.
- Entering unclear or incorrect bank details: Verify that all direct deposit account information is correct and clearly legible.
- Using paper filing to pass through certain credits: Electronic filing is required to pass business tax credits from Form 500CR and/or Form 502S to members.
- Including ineligible members in a composite return: Nonresident entity and fiduciary members cannot file a composite return or be included in one filed by nonresident individual members.
Questions people ask
What tax rates does the 2025 form use?
The form calculates the election tax for individual members at 8.75% and for entity members at 8.25% of their respective taxable income amounts.
How do multistate entities allocate income to Maryland?
Multistate PTEs must complete line 3a for separate accounting or line 3b for the apportionment method. Entities using apportionment use the computation worksheet on page 4.
Can a refund be deposited directly into a bank account?
Yes. The form provides a direct deposit authorization checkbox and asks for the account type, nine-digit routing number, account number, and name on the account. It also asks whether the refund will go to an account outside the United States.
How should members be listed on Schedule B?
List individual members in Social Security number order. List fiduciary, PTE, and corporate members in FEIN order in their respective parts of Schedule B.