IRS Outlines Key May 2025 Tax Deadlines: What Individuals and Businesses Need to Know

Muhammad Bilal
May 7
2 min read

Introduction

As the U.S. tax landscape continues to evolve, staying compliant with Internal Revenue Service (IRS) filing and payment deadlines is crucial for both individuals and organizations. The IRS has released a set of important May 2025 deadlines covering nonprofit filings, payroll tax obligations, and estimated payments. Taxpayers who miss these dates risk penalties, interest accrual, and delayed refunds.

This blog outlines the key dates, who they affect, and how to prepare effectively.

Key IRS Deadlines for May 2025

📌 May 15 – Deadline for Nonprofit Organizations

Nonprofit organizations that operate on a calendar-year basis must file their annual returns using one of the Form 990 series:

Form 990 – For larger nonprofits
Form 990-EZ – For medium-sized organizations
Form 990-N (e-Postcard) – For small nonprofits with gross receipts of $50,000 or less

Failure to file can result in automatic revocation of tax-exempt status after three consecutive years of noncompliance.

May 17 – Monthly Payroll Tax Deposit Due

Businesses that withhold federal income tax and FICA (Social Security and Medicare) taxes on a monthly schedule must deposit these amounts by May 17, covering payroll for April.

Payments must be made via the Electronic Federal Tax Payment System (EFTPS) or IRS Direct Pay to avoid late deposit penalties.

May 31 – Form 941 Deadline for Employers

Quarterly filers must submit Form 941 (Employer's Quarterly Federal Tax Return) by the end of the month. This form reports:

Wages paid
Federal income tax withheld
Social Security and Medicare taxes

Failure to file on time can result in 5% penalties per month, up to a maximum of 25%.

Who Should Pay Attention

Nonprofit Executives and Boards Ensure timely submission to protect 501(c)(3) status and maintain donor confidence.
Small Business Owners and Payroll Managers Monitor payroll cycles and deposit schedules to avoid IRS notices or audits.
Accountants and Tax Advisors Use these deadlines to proactively notify clients and maintain compliance.

Tips for Staying Compliant

Use IRS e-Services Set up reminders via the IRS’s online services or integrate deadlines into your accounting software.
File Electronically Electronic filing ensures faster processing and instant confirmation of receipt.
Confirm Payment Status Always verify that EFTPS payments are posted correctly. Keep digital and printed confirmation for your records.
Consult a Tax Professional Complex organizations or those filing for the first time should work with a CPA or EA to avoid missteps.

Consequences of Noncompliance

Missing IRS deadlines doesn’t just incur fees — it can damage your organization’s credibility, disrupt cash flow, and lead to enforcement action. Nonprofits may lose tax-exempt status, while businesses might face wage garnishments or asset levies if liabilities are unpaid.

Conclusion

The May 2025 IRS deadlines are fast approaching. Whether you manage a nonprofit, run payroll for a business, or assist others with tax matters, now is the time to ensure your filings and deposits are complete. Taking action early not only avoids penalties — it builds trust, strengthens operations, and ensures peace of mind.