Tax Return Dates for 2015 Business Taxes

Including Due Dates for Extended Business Tax Returns

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UPDATE: Extended Tax Return Due Dates for 2015 Business Tax Returns

If you applied for an extension for your 2015 business tax return, the due date is coming up: 

For corporate tax returns, partnership returns, and multiple-member LLC returns, the due date is September 15, 2016. 

For ole proprietorship and single-member LLC returns (along with your personal tax return), the due date is October 17, 2016. (That's because October 15, 2016, is a Saturday.

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2015 Tax Return Due Dates for Business Types - Sole Proprietorships, LLC's, Partnerships, Corporations, S-Corporations

The official federal income tax return due date for personal and partnership taxes is April 15. BUT, in 2016 April 15 is a federal holiday in the District of Columbia.

This due date includes: 

  • Small businesses filing Schedule C for their small business taxes
  • LLC owners filing either Schedule C (for single-member LLCs) or a partnership tax return (for multiple-member LLCs), and 
  • Partnership tax returns. 

When is my business tax due? It depends on the type of legal entity of your business. These are the deadlines for filing business taxes for the 2015 filing year. Remember, you are preparing a business tax return in 2016 for the year 2015. 

If the tax return due date falls on a weekend or holiday, the due date is moved to the first following work day; for example, if April 15 is on Sunday, the due date is Monday, April 16.

Here is a list of the types of business entities and their tax return due dates for 2015 tax returns:

Sole Proprietorship

A sole proprietorship business is an extension of the person running the business, so its year end is December 31, and the tax return due date is the same as the individual's - April 15 of the following year.

Sole proprietor businesses file their business income tax return on Schedule C, which is part of the group of forms and schedules that goes along with the person's personal tax return.

The due date for 2015 Schedule C is April 18, 2016, the same as your individual tax return date.
 

Single-member LLC

A single member LLC (that is, an LLC with only one owner) is taxed like a sole proprietorship, using Schedule C to calculate net income, so the tax returns are due and taxes are payable on April 15, for the prior year. The due date for 2015 Schedule C forms, along with the owner's personal tax return, is April 18, 2016.

Partnership

A partnership return is filed as an information return on Form 1065, and tax is owed on the individual partner tax return. Form 1065 is due on 15th day of the 4th month after the end of the partnership's tax year.

For a December 31, 2015 year end, the due date is April 18, 2016. For 2015 tax return filing, the partnership return due date is April 15, 2016. April 15 is usual the due date for Individual partners to file Schedule K-1 showing their individual share of the partnership income or loss, on their personal tax returns.

Multiple-member Limited Liability Company (LLC)

Multiple-member LLCs are taxed as partnerships, so the partnership filing and payment regulations above apply, including the April 18, 2016, filing date for 2015 Schedule K-1.

Corporation

A corporation that has not filed a Subchapter S election may choose any convenient date as their year end (usually a quarter end date). Corporation tax returns are due and taxes are payable on the 15th day of the third month after the end of the company's fiscal (financial) year. So, a corporation with a year-end date of December 31 must file and pay taxes by March 15 (March 16, 2016, for December 31, 2015, year-end corporations.

Subchapter S Corporation 

Corporations which have filed a subchapter S election are taxed on the individual income tax returns of the owners. So an S corporation must usually take a calendar year end date (December 31) unless the corporation can establish a reasonable business purpose for a different date. The filing date and tax return due date is the same as for other corporations (March 15, 2016 for a 2015 December 31 tax year end.) 

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