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2024 Massachusetts State Tax Deadlines

Massachusetts Individual Income Tax Filing deadlines and extensions for 2024 tax professionals.

As tax professionals serving clients in Massachusetts, it’s crucial to be aware of the state’s tax filing deadlines and extensions to ensure timely compliance and avoid potential penalties. This guide provides an overview of the key dates for the 2024 tax year.

2024 Massachusetts State Tax Deadlines

Massachusetts Individual Income Tax Filing deadlines and extensions for 2024.

If you are a resident or have been involved in significant business operations within Massachusetts then you might be required to file Massachusetts State Taxes. We look at the most important tax deadlines and tax extensions for Massachusetts in 2024.

Massachusetts Business Tax Deadlines for 2024

C Corporation

Massachusetts C Corporation Tax Deadlines for 2024

Tax professionals must file and pay Corporate Excise Taxes in Massachusetts on behalf of their C Corporation clients by April 15, 2025.

  • File Online: MassTaxConnect
  • File by Mail: Must be postmarked by the due date
  • Applicable Form: Form 355 – Massachusetts Corporate Excise Tax Return

Extension to File Taxes in Massachusetts for 2024

While the payment for taxes in Massachusetts for the fiscal year 2024 is still due by April 15, 2025, the Extension Deadline to file the Massachusetts corporate excise tax return is November 15, 2025.

Massachusetts automatically grants a 6-month extension for filing corporate excise tax returns, so tax professionals do not need to file for an extension separately.

Please note that this is an extension to FILE, not an extension to PAY – the payment is still due on April 15, 2025.

Pass-Throughs

Massachusetts S Corporation & Partnership Tax Deadlines for 2024

Tax professionals must file S Corporation and Partnership tax returns in Massachusetts on behalf of their clients by March 15, 2025.

  • File Online: MassTaxConnect
  • File by Mail: Must be postmarked by the due date
  • Applicable Forms: Form 355S, Form 3 – Partnership Return

Extension to File S Corporation & Partnership Taxes in Massachusetts for 2024

While the payment for taxes in Massachusetts for the fiscal year 2024 is still due by March 15, 2025, the Extension Deadline to file the Massachusetts S Corporation or Partnership tax return is September 15, 2025.

Massachusetts automatically grants 6-month extensions for filing pass-through entity tax returns, so tax professionals do not need to file for an extension separately.

Please note that this is an extension to FILE, not an extension to PAY – the payment is still due on March 15, 2025.

Massachusetts Individual Tax Deadlines for 2024

Estimated Tax Deadline for Massachusetts 2024

Estimated tax payments for individual clients in Massachusetts are due on the following dates:

  • April 17, 2024
  • June 17, 2024
  • September 16, 2024
  • January 15, 2025

Refer to Form 1-ES instructions for the amount to pay with each voucher.

Individual Tax Deadline for Massachusetts 2024

Tax professionals must file and pay Individual Income Taxes in Massachusetts on behalf of their clients by April 15, 2025.

  • File Online: MassTaxConnect
  • File by Mail: Must be postmarked by the due date
  • Applicable Forms: Form 1 – Residents, Form 1-NR/PY – Nonresidents or Part-Year Residents

Extension to File Taxes in Massachusetts for 2024

While the payment for taxes in Massachusetts for the fiscal year 2024 is still due by April 15, 2025, the Extension Deadline to file the Massachusetts Individual Income tax return is October 15, 2025.

Massachusetts automatically grants a 6-month extension for filing personal income taxes, so tax professionals do not need to file for an extension separately.

Please note that this is an extension to FILE, not an extension to PAY – the payment is still due on April 15, 2025.

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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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Tax Planning Glossary

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Tax Planning Strategies

Our team of tax experts has scoured tax rules and regulations to create detailed tax strategies you can use to find savings for your clients.

Tax Planning Glossary

Let’s face it, taxes can be confusing. Learn the terms you need to know in our tax planning glossary.

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