Business Tax Due Dates and Tax Rates for 2013 Tax Filing

Jean Murray for About.com writes:   Corporation and S-corporation federal income tax returns, for corporations with a December 31 tax year-end, are due March 17, 2014 (March 15, 2014, the usual date, is a Saturday).

Partnership federal income tax returns, on Form 1065, are also due on March 17, 2014. This due date also applies to multiple-member LLC's, which are taxed as partnerships. 


Sole proprietors and single-member LLC's filing Schedule C along with their personal tax returns have a federal income tax due date of April 15, 2014.

Schedule K-1's for individual partners, Subchapter S owners, and LLC members are also due on April 15, 2014, along with the owners' personal tax returns.

And tax rates for business taxes for 2013:

The tax rates remained the same in 2013, for all business types. Corporate federal income tax rates range from 15% to 38%.  Personal income tax rates (for sole proprietors, LLC members, S corporation owners, and partnership partners) depend on tax filing status. William Perez, at Tax Planning, has the information on personal tax rates for 2013 taxes.