The deadline for filing a business tax return or tax extension is the same date. For example, if your business return is due by March 16, you must file Form 7004 by March 16 in order to get an extension.
Business owners who report their business activities on their personal tax return (including sole proprietorships and single-member LLCs) should not request a business extension with Form 7004. Instead, these taxpayers should request a personal extension with Form 4868 to extend the filing deadline for both their personal and business taxes. Form 4868 must be filed by the original due date of your personal tax return (usually April 15).
Here are the original filing due dates for various types of business entities (for calendar year filers):
• Sole Proprietorships (Form 1040): April 15
• Single-Member LLCs (Form 1040): April 15
• Partnerships (Form 1065): April 15
• Estates & Trusts (Form 1041): April 15
• Corporations (Form 1120): March 15 (March 16, 2015 this year)
• S-Corporations (Form 1120S): March 15 (March 16, 2015 this year)
• Homeowners Associations (Form 1120-H): March 15 (March 16, 2015 this year)
• Cooperative Associations (Form 1120-C): March 15 (March 16, 2015 this year)
• Real Estate Investment Trusts, REITs (Form 1120-REIT): March 15 (March 16, 2015 this year)
• Real Estate Mortgage Investment Conduits, REMICs (Form 1066): April 15
NOTE: If a corporation files based on the fiscal year, the original filing due date is the 15th day of the 3rd month following the close of the taxable year.
A business tax extension will give you either 5 or 6 more months to file. Businesses that are requesting an extension for Form 1065 (partnerships), Form 8804 (partnership withholding), or Form 1041 (trusts and non-bankruptcy estates) are limited to a 5-month extension. Most other types of businesses, including corporations and REITs, are permitted a 6-month tax extension.
If your business return is originally due by March 16, 2015 and you obtain a 6-month extension, you will have until September 15, 2015 to file your return. If you business return is originally due by April 15, 2015 and you obtain a 5-month extension, you will have until September 15, 2015 to file your return.
It’s highly recommended that you use an Authorized IRS e-file Provider to file your taxes online.