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Essential Business Tax Deadlines for August 2025

Stay on top of critical IRS deadlines with our guide for August 2025, ensuring your business remains compliant and avoids penalties. Here's a concise overview of the key due dates you need to mark on your calendar.

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August 11 - Form 941 for Social Security, Medicare, and Withheld Income Tax

By this date, businesses must file Form 941 for the second quarter of 2025. Remember, this deadline applies only if you've deposited the tax for the quarter in full and on time.

August 15 - Monthly Tax Deposits Due for Payroll and Nonpayroll Withholding

Employers using the monthly deposit schedule must deposit Social Security, Medicare, and withheld income tax for July 2025 by August 15. This is also the cutoff for nonpayroll withholding deposits for the same period.

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Weekends & Holidays:

If any due date falls on a Saturday, Sunday, or legal holiday, the deadline is extended to the next business day that isn't a holiday.

Disaster Area Extensions:

Be aware that in designated disaster areas, deadline extensions are provided. For real-time updates on affected areas and extended filing dates, visit the following resources:

FEMA: https://www.fema.gov/disaster/declarations
IRS: https://www.irs.gov/newsroom/tax-relief-in-disaster-situations

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