2023 Maryland State Tax Deadlines

Maryland Individual Income Tax Filing deadlines and extensions for 2023.

If you are a resident or have been involved in significant business operations within Maryland then you might be required to file Maryland State Taxes. We look at the most important tax deadlines and tax extensions for Maryland in 2023.

C Corporation

Maryland C Corporation Tax Deadlines for 2023

You must file & pay Corporate Income Taxes in Maryland by April 16, 2024.

Applicable forms:
Form 500 - Corporation Income Tax Return

Extension to File Taxes in Maryland for 2023

You must send payment for taxes in Maryland for the fiscal year 2023 by April 16, 2024.

The Extension Deadline is November 15, 2024 to file your Maryland income tax return.

Maryland may grant an extension of time to file your Form 500. Submit Form 500E - Maryland Application for Extension to File Corporation Income Tax Return. Maryland law provides for an extension of time to file, but in no case can an extension be granted for more than seven months beyond the original due date.

This is an extension to FILE, not an extension to PAY - payment is still due April 16, 2024.

Pass-Throughs

Maryland S Corporation & Partnership Tax Deadlines for 2023

You must file in Maryland by April 16, 2024.

Applicable forms:
Form 510 - Pass-Through Entity Income Tax Return

Extension to File S Corporation & Partnership Taxes in Maryland for 2023

You must send payment for taxes in Maryland for the fiscal year 2023 by April 16, 2024.

The Extension Deadline is November 15, 2024 to file your Maryland income tax return.

Maryland may grant an extension of time to file your Form 510. Submit Form 510E - Maryland Application for Extension to File Pass-Through Entity Income Tax Return. Maryland law provides for an extension of time to file, but in no case can an extension be granted for more than seven months beyond the original due date.

This is an extension to FILE, not an extension to PAY - payment is still due April 16, 2024.

Maryland Individual Tax Deadlines for 2023

Estimated Tax Deadline for Maryland 2023

Estimated tax payments should be made:  

  • April 18, 2023
  • June 15, 2023
  • September 15, 2023
  • January 15, 2024

See PV for the amount to pay with each voucher.

Individual Tax Deadline for Maryland 2023

You must file & pay Individual Income Taxes in Maryland by April 16, 2024.

Applicable forms:
502 - Full Time Residents
505 - Non-Residents & Part-Year Residents

Extension to File Taxes in Maryland for 2023

You must send payment for taxes in Maryland for the fiscal year 2023 by April 16, 2024.

The Extension Deadline is October 15, 2024 to file your Maryland Individual Income tax return.

Maryland will automatically grant a 6 months extension on filing personal income taxes if a federal extension is filed and there is no tax due. This means you do not need to file for an extension in Maryland if you file a federal extension, attach the federal extension to the state return and have no tax due in Maryland. If you do NOT file a federal extension or have tax due, file Form PV.

This is an extension to FILE, not an extension to PAY - payment is still due April 16, 2024.

Estates Tax Deadline for Maryland 2023

Maryland requires you to pay the Estate Tax within 9 months after the date of death.

Farmer and Fisherman Taxes for Maryland 2023

If at least 2/3 of your gross income for the taxable year is derived from farming, you may pay estimated tax at any time on or before January 15, 2024. If you wait until January 15, 2024, you must pay the entire balance of the estimated tax. However, if farmers file their tax return on or before March 1, 2024, and pay the total tax at that time, they need not file estimated tax.

Sources

The material discussed on this page is meant for general illustration and/or informational purposes only and is not to be construed as investment, tax, or legal advice. You must exercise your own independent professional judgment, recognizing that advice should not be based on unreasonable factual or legal assumptions or unreasonably rely upon representations of the client or others. Further, any advice you provide in connection with tax return preparation must comply in full with the requirements of IRS Circular 230.

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