File Maryland Forms 500E, 510/511E & 504E for a Business Tax Extension

Prepare your Maryland tax extension with TaxBandits to get additional
time to file your return. We'll generate an accurate, print-ready form and mail it to the state for you.

Who Can File Forms 500E, 510/511E or 504E?

Corporations

Corporations

Deadline: April 15th

Form 500
Pass-Through Entities

Pass-Through Entities

Deadline: April 15th

Form 510/511
Estates and Trusts

Estates and Trusts

Deadline: April 15th

Form 504

Maryland Business Tax Extension Filing Deadlines

Know your filing deadline and prepare the extensions on time to extend your Maryland business tax return deadline.

Business Type Tax Form Original Due Date Extension Form Extension Period
Corporations Form 500 15th day of the 4th month after tax year-end Form 500E 7-Month Extension
S Corporations Form 510/511 15th day of the 4th month after tax year-end Form 510/511E 7-Month Extension
Pass-Through Entities Form 510/511 15th day of the 4th month after tax year-end Form 510/511E 6-Month Extension
Estates and Trusts Form 504 15th day of the 4th month after tax year-end Form 504E 6-Month Extension

Maryland Business Tax Extension, Made Easy

Everything you need to prepare and file Maryland Forms 500E, 510/511E, or 504E accurately and without the guesswork.

Built-in error checks

Built-in error checks

Built-in error checks help identify missing information and common filing errors before your form is generated.

File in less than 10 minutes

File in less than 10 minutes

A guided, step-by-step workflow means most businesses complete their Maryland extension filing in under 10 minutes.

Postal mailing support

Postal mailing support

We print and mail your completed Form 500E, 510/511E, or Form 504E directly to the Maryland Comptroller.

Secure, encrypted platform

Secure, encrypted platform

Your business and tax data are protected with bank-level encryption on a SOC 2-certified platform.

Copies for your records

Copies for your records

Access and download a copy of your prepared Maryland extension any time from your
TaxBandits account.

One platform, every extension

One platform, every extension

Manage your Maryland extension alongside federal extensions like Form 7004, 4868, 8868, 8809, and 15397 in a single platform.

Ready to simplify your Maryland tax extension? Prepare your form with TaxBandits.

Information Required to File Maryland Business Tax
Extension Forms

Know what information you need to prepare and file Form 500E, Form 510/511E, or Form 504E accurately.

Have your business details ready? Complete your Maryland business tax extension with TaxBandits.

How to File Maryland Business Tax Extensions in TaxBandits

Create a free TaxBandits account and follow these 3 simple steps to file the extension accurately.

Enter Required Details

Enter Required Details

Complete your business details, tax year, and tax information using the guided workflow.

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Review & Generate Your Form

Review & Generate Your Form

ReviewReview your information, and TaxBandits will generate your applicable extension form.

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Print & Mail Your Form

Print & Mail Your Form

We print and mail your completed form when required and provide a copy for your records.

Ready to extend your Maryland tax filing deadline? Get started with TaxBandits.

How Much Does It Cost to File a Maryland Business
Tax Extension?

Pay only when you're ready to prepare and mail your Maryland extension forms. File with accuracy and peace of mind.

  • 3-step easy filing process
  • We print and mail it for you
  • Built-in error checks
  • World-class customer support

$4.95/form

  • 3-step easy filing process
  • We print and mail it for you
  • Built-in error checks
  • World-class customer support

$4.95/form

Also Need a Federal Extension?

Need more time for your federal business tax return? TaxBandits makes it easy to prepare Form 7004 and request your federal extension from the
same platform.

Frequently Asked Questions

Maryland Form 500E, Application for Extension to File Corporation Income Tax Return, is used by corporations to request an extension to file their Maryland Form 500.

  • Extension period: Up to 7 months
  • Filing deadline: 15th day of the fourth month following the close of the tax year
  • The extension gives more time to file the return, not pay the tax due.

If tax is due, the corporation must make the required payment with the extension.

Maryland Form 510/511E, Application for Extension to File Pass-Through Entity Income Tax Return, is used to extend the filing deadline for Maryland Form 510 or Form 511.

It applies to:

  • S Corporations
  • Partnerships
  • Limited Liability Companies
  • Business Trusts

Composite return filers should not use Form 510/511E. Instead, they must use Form EL102B to request an extension for filing a Maryland composite income tax return.

Maryland Form 504E, Application for Extension to File Fiduciary Income Tax Return, provides an automatic six-month extension to file Maryland Form 504 for an estate or trust.

To receive the extension, the fiduciary must complete Form 504E correctly, file it by the required deadline, and pay the full balance shown on the form. The extension provides additional time to file the return but does not extend the time to pay taxes.

The extension period depends on the type of business:

  • Corporations: Up to 7 months with Form 500E.
  • S corporations: Up to 7 months with Form 510/511E.
  • Partnerships, LLCs, and business trusts: 6 months with Form 510/511E.
  • Estates and trusts: 6 months with Form 504E.

The applicable extension must be filed by the original due date.

No. A Maryland filing extension does not extend the payment deadline. Any tax due must be paid by the original due date to avoid applicable interest and penalties.

For Form 504E, the instructions require payment of the full balance shown on the form to receive the extension.

No. Maryland does not allow consolidated corporate returns. Affiliated corporations that file a consolidated federal return must file a separate Maryland extension for each member corporation.

If you need to mail the extension form with payment, send it to:

location-map

Comptroller of Maryland
Revenue Administration Division
110 Carroll Street
Annapolis, MD 21411-0001

For Form 504E, make the check or money order payable to the Comptroller of Maryland. Include the FEIN, tax year, and tax type on the payment.

Ready to File Your Maryland Business Tax Extension?

Make your Maryland extension filing simple with TaxBandits. Prepare Form 500E, 510/511E, or Form 504E online, review your information,
and get your completed form ready for submission.