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April 2026 Business Tax Due Dates: What You Need to Know

April is a demanding month for business owners. Whether you manage a growing startup in Phoenix, oversee private equity in West Palm Beach, or run a practice in the Washington, D.C. area, staying on top of tax obligations is critical. At Tangible Accounting, PLLC, we know that hitting these milestones protects your assets and cash flow. Here are the crucial business tax deadlines for April 2026.

April 15: Corporate & Fiduciary Deadlines

C-Corporations: File your 2025 income tax return (Form 1120) and pay any taxes owed. Need more time? Submit Form 7004 for an automatic six-month extension. Remember, filing this protects against late filing penalties but not late payment penalties. Deposit your estimated liability using Form 7004 instructions. Also, your first installment for 2026 estimated taxes is due.

Fiduciary Returns: Last day to timely file a 2025 calendar year fiduciary return (Form 1041, U.S. Income Tax Return of Estates and Trusts) or file an extension.

Rocket landing on target representing meeting tax deadlines

April 15: Payroll & Withholding

Social Security, Medicare, and Withheld Income Tax: If the monthly deposit rule applies to your business, deposit the tax for payments in March.

Non-Payroll Withholding: If the monthly deposit rule applies to your operations, deposit the tax for payments made in March.

April 30: Quarterly Filings & FUTA

Form 941: File your return for the first quarter of 2026. Deposit or pay any undeposited tax under the accuracy of deposit rules. If your liability is under $2,500, you can pay it in full with a timely filed return. If you deposited the tax for the quarter in full and on time, you have until May 11 to file.

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

Extensions & Disaster Relief

If a due date falls on a weekend or legal holiday, it automatically extends to the next business day. Furthermore, businesses in federally designated disaster areas receive extended deadlines. Check these websites for current disaster declarations and tax relief details:

Navigating filings requires precision. Jaron J. Fulse, EA, and Tangible Accounting, PLLC are ready to help manage these deadlines. Contact our team today to review your strategic tax plan.

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