September 2024 Business Due Dates

September 16 - S Corporations
File a 2023 calendar year income tax return (Form 1120-S) and pay any tax due. This due date applies only if you requested an automatic 6-month extension. Provide each shareholder with a copy of their Schedule K-1 (Form 1120-S) or a substitute Schedule K-1 and, if applicable, Schedule K-3 (Form 1120-S) or substitute Schedule K-3 (Form 1120-S).

September 16 - Corporations 

Deposit the third installment of estimated income tax for 2023 calendar year

September 16 -  Social Security, Medicare and withheld income tax

If the monthly deposit rule applies, deposit the tax for payments in August.

September 16 - Nonpayroll Withholding

If the monthly deposit rule applies, deposit the tax for payments in August.

September 16 - Partnerships

File a 2023 calendar year return (Form 1065). This due date applies only if you were given an additional 5-month extension. Provide each partner with a copy of K-1 (Form 1065) or a substitute Schedule K-1.

September 30 - Fiduciaries of Estates and Trusts

File a 2023 calendar year return (Form 1041). This due date applies only if you were given an extension of 5 1/2 months. If applicable, provide each beneficiary with a copy of K-1 (Form 1041) or a substitute Schedule K-1.

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.