Critical April 2026 Tax Deadlines for Businesses and Trusts

April is a pivotal month for tax compliance. Whether you run a growing SaaS company, a busy medical practice, or a nonprofit, keeping close track of spring deadlines is essential for avoiding penalties. At Veritas Planning Advisors, we want to ensure your financial operations are aligned as these critical April 2026 due dates approach.

April 15 Deadlines

C-Corporations: Your 2025 calendar-year income tax return (Form 1120) and any taxes owed are due. If you need more time, file Form 7004 for an automatic six-month filing extension. Remember, an extension gives you time to file, not to pay. You must accurately estimate and deposit your tax liability now to prevent late payment penalties. Also, the first installment of your 2026 estimated tax is due today.

Payroll and Non-Payroll Withholding: If your business falls under the monthly deposit rule, taxes for March payments—including Social Security, Medicare, and withheld income tax—must be deposited.

Fiduciary Returns: This is the final day to timely file your 2025 calendar-year fiduciary return for estates and trusts (Form 1041) or to file for an extension.

Business team reviewing financial documents

April 30 Deadlines

Quarterly Payroll (Form 941): Employers must file Form 941 for the first quarter of 2026. Deposit or pay any undeposited tax. If your liability is less than $2,500, you can pay it in full with a timely filed return. If you fully deposited the tax on time, your filing deadline extends to May 11.

Federal Unemployment Tax (FUTA): Deposit any tax owed through March if it exceeds $500.

Holidays and Disaster Area Relief

If a tax deadline falls on a weekend or legal holiday, it automatically shifts to the next standard business day. Furthermore, businesses in declared disaster areas often receive deadline extensions. Check geographic designations and relief dates via FEMA and the IRS.

Proactive planning means less stress. Reach out to Veritas Planning Advisors in Somerville, NJ, to stay ahead of your compliance needs.

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