April 2026 Tax Due Dates for Greater Boston Small Businesses

Spring in greater Boston brings shifting weather and crucial deadlines for your small business finances. Whether you run a Quincy restaurant handling sales and meals tax filing or you are navigating real estate investor taxes, missing an April due date triggers unnecessary penalties. As your dedicated tax preparer and IRS Enrolled Agent, we keep your bookkeeping and payroll perfectly on track.

Crucial April 15 Deadlines

C-Corporations: File your 2025 calendar year income tax return (Form 1120) and pay any tax due. Need more time? We can file Form 7004 for an automatic 6-month extension. Remember, an extension to file is not an extension to pay. Your first installment for 2026 estimated taxes is also due today.

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Fiduciary Returns: Timely file your 2025 calendar year fiduciary return (Form 1041) or request an extension.

Payroll & Non-Payroll Withholding: If subject to the monthly deposit rule, deposit taxes for March payments.

One Accounting Tax® Since 2017
Call/Text: (617) 829-0928 or email service@oneaccountingtax.com to schedule an in-person consultation or video call with our Tax Advisors (IRS Enrolled Agent, EA) today. Serving Braintree, Quincy, and Greater Boston with full-service accounting—tax preparation, payroll, bookkeeping, and year-round tax planning.
Contact Our Local Tax Advisors Today!

Important April 30 Deadlines

Form 941 & FUTA: File Form 941 for the first quarter of 2026 and deposit any undeposited tax. Also, deposit your Federal Unemployment Tax (FUTA) owed through March if it exceeds $500.

Extensions & Disaster Areas

If a deadline falls on a weekend or holiday, it shifts to the next business day. Furthermore, businesses in federally declared disaster zones may qualify for automatic deadline relief. Verify your local status via FEMA or the IRS disaster relief page.

Keeping up with deadlines is critical to avoiding IRS auditing. Need an experienced accountant to streamline your tax preparation? Contact our Quincy office today to speak with an EA.

One Accounting Tax® Since 2017
Call/Text: (617) 829-0928 or email service@oneaccountingtax.com to schedule an in-person consultation or video call with our Tax Advisors (IRS Enrolled Agent, EA) today. Serving Braintree, Quincy, and Greater Boston with full-service accounting—tax preparation, payroll, bookkeeping, and year-round tax planning.
Contact Our Local Tax Advisors Today!
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