September 2015 Business Tax Due Dates

September 15 –  Corporations

File a 2014 calendar year income tax return (Form 1120 or 1120-A) and pay any tax, interest, and penalties due. This due date applies only if you timely requested an automatic 6-month extension.

September 15 – S Corporations

File a 2014 calendar year income tax return (Form 1120S) and pay any tax due. This due date applies only if you requested an automatic 6-month extension.

September 15 – Corporations

Deposit the third installment of estimated income tax for 2015 for calendar year corporations.

September 15 –  Social Security, Medicare and withheld income tax

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

September 15 – Nonpayroll Withholding

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

September 15 – Partnerships

File a 2014 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 15 – Fiduciaries of Estates and Trusts

File a 2014 calendar year return (Form 1041). This due date applies only if you were given an additional 5-month extension. If applicable, provide each beneficiary with a copy of K-1 (Form 1041) or a substitute Schedule K-1.

Original Post By:  Barry Fowler

Barry Fowler is licensed to represent taxpayers before the Internal Revenue Service (IRS) and is a longstanding member of several tax industry professional organizations including the National Association of Enrolled Agents (NAEA), National Association of Tax Preparers (NATP), Texas Society of Enrolled Agents (TSEA), and the American Society of Tax Problem Solvers (ASTPS). With experience in the tax and finance industry spanning over twenty years, Fowler’s expertise includes tax resolution, personal financial planning, tax return preparation, financial statements, and general ledger bookkeeping. He has been instrumental in helping hundreds of people resolve complex tax issues with the IRS.

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