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April 2026 Business Tax Deadlines: What Service Providers Need to Know

April is a major month for tax compliance, but keeping track of these deadlines shouldn't consume your mental bandwidth. At Desert Lily Bookkeeping, we know firsthand how easily tax dates can slip by when you are managing back-to-back appointments. We help service-based business owners, real estate transaction coordinators, and creative professionals across the U.S. clear the clutter and stay compliant. Here are the crucial April 2026 tax deadlines you need on your calendar to ensure you can stay focused on growing your business with confidence.

April 15 Deadlines

C-Corporations

Your 2025 calendar year income tax return (Form 1120) is officially due, along with any tax owed. If you realize you need more time, you can file Form 7004 for an automatic 6-month extension. However, remember that an extension only delays your filing deadline, not your payment due date. You must estimate and deposit what you owe using the instructions on Form 7004 to avoid unnecessary late payment penalties. Additionally, your first installment for your 2026 estimated taxes is due today.

Female service provider organizing her business tax deadlines

Payroll and Non-Payroll Withholding

If your service business follows the standard monthly deposit rule, you must deposit Social Security, Medicare, and withheld income taxes for your March payments.

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Fiduciary Returns

This is the final day to file your 2025 calendar year fiduciary return (Form 1041, U.S. Income Tax Return of Estates and Trusts) or officially request an extension.

April 30 Deadlines

First Quarter Payroll Taxes

You must file Form 941 for the first quarter of 2026 and deposit any unpaid tax under the standard deposit rules. If your tax liability is under $2,500, you may pay it in full alongside a timely filed return. If you made full, on-time deposits during the quarter, your filing deadline is extended to May 11.

Federal Unemployment Tax (FUTA)

Deposit your FUTA tax owed through the month of March if the amount exceeds the $500 threshold.

Holidays and Disaster Relief

Any tax deadline falling on a weekend or legal holiday automatically pushes to the next business day. The IRS also extends deadlines for federally declared disaster areas. Check disaster-related extensions via FEMA or the IRS.

Tired of dealing with disorganized books and limited financial visibility? Let us take the stress out of your compliance. Contact Kaiyah and the dedicated team at Desert Lily Bookkeeping today to streamline your systems and gain true financial clarity.

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Book your free consultation with me today to see how we can get you back on track.
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