June 2025 Business Due Dates

Stay on top of your business tax responsibilities this June. Key due dates include federal tax deposits for May and the second estimated tax payment for corporations. Don’t miss these important deadlines.

June 16 - Employer’s Monthly Deposit Due

If you are an employer and the monthly deposit rules apply, June 16 is the due date for you to make your deposit of Social Security, Medicare, and withheld income tax for May 2025. This is also the due date for the nonpayroll withholding deposit for May 2025 if the monthly deposit rule applies. 

June 16 - Corporations

Deposit the second installment of estimated income tax for 2025 for calendar year corporations.

Weekends & Holidays:

If a due date falls on a Saturday, Sunday or legal holiday, the due date is automatically extended until the next business day that is not itself a legal holiday.

Disaster Area Extensions:

Please note that when a geographical area is designated as a disaster area, due dates will be extended. For more information whether an area has been designated a disaster area and the filing extension dates visit the following websites:

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

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The Most Important Thing to Have Ready

If you received a notice or letter from the IRS or Oklahoma Tax Commission, keep it available. That document usually tells us what the agency is requesting, the deadlines involved, and what information we may need next.

What Happens Next?

Our staff will first gather some basic information and determine whether the matter is something our firm can assist with.

If appropriate, the next step is a paid one-hour strategy meeting with former IRS Revenue Agent, Austin Murray, CPA. During that meeting, we review the notices and relevant records in detail and discuss the available options.

If you engage Millennial Accounting for representation, the consultation fee is applied toward the representation retainer.

Helpful Documents to Have Available

  • IRS or Oklahoma Tax Commission notices

  • Prior tax returns

  • Accounting or payroll records

  • Previous correspondence with the taxing agency

  • Any documents specifically requested in the notice

Important:
Do not email sensitive tax documents! Our staff will direct you to an approved secure method.