Essential June 2025 Tax Deadlines for Businesses: Stay Compliant and Avoid Penalties

Staying current with your business tax responsibilities is critical to maintaining compliance and avoiding costly penalties. June 2025 brings key federal tax deadlines every business owner and finance professional should have on their radar.

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June 16, 2025 – Employers: Monthly Federal Tax Deposit Due

If you are subject to the IRS monthly deposit rules, June 16 is the deadline to remit your federal deposits for Social Security, Medicare, and withheld income taxes for payroll processed in May 2025. This also applies to nonpayroll withholding (such as backup withholding or withholding on pensions) if the monthly deposit schedule is mandated for your organization.

Ensuring timely electronic submission via the Electronic Federal Tax Payment System (EFTPS) or an authorized provider mitigates the risk of late deposit penalties and keeps your payroll operations fully compliant with IRS requirements.

June 16, 2025 – Corporations: Second Estimated Tax Payment Due

Calendar-year C Corporations must deposit their second installment of 2025 estimated income tax by this date. Accurately projecting your annual taxable income and using IRS Form 1120-W, Estimated Tax for Corporations, ensures that your business meets its quarterly tax obligations and avoids underpayment penalties.

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Weekends & Holidays

If a federal tax due date falls on a Saturday, Sunday, or officially recognized holiday, the deadline automatically shifts to the following business day. This built-in flexibility helps businesses plan remittance strategies and avoid missed deadlines due to non-business days.

Disaster Area Extensions

Has your business been impacted by a federally declared disaster? The IRS and FEMA may offer automatic filing and payment extensions. Stay updated by checking the latest declarations and relief details:

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Proactively managing these June 2025 tax deadlines ensures your business remains compliant and positions you for financial stability. For tailored guidance on payroll deposits, estimated tax payments, and disaster relief extensions, consult with your professional accountant or tax advisor.

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