For all state tax filing deadlines, please reference the table below.

State Filing Deadlines
Alabama 4/17/2012
Arizona 4/17/2012
Arkansas 4/17/2012
California 4/17/2012
Colorado 4/17/2012
Connecticut 4/17/2012
Delaware 4/30/2012
DC 4/17/2012
Georgia 4/17/2012
Hawaii 4/20/2012
Idaho 4/17/2012
Illinois 4/17/2012
Indiana 4/17/2012
Iowa 4/30/2012
Kansas 4/17/2012
Kentucky 4/17/2012
Louisiana 5/15/2012
Maine 4/17/2012
Maryland 4/15/2012
Massachusetts 4/17/2012
Michigan 4/17/2012
Minnesota 4/17/2012
Property tax deadline 8/15/12
Mississippi 4/17/2012
Missouri 4/17/2012
Montana 4/17/2012
Nebraska 4/17/2012
New Hampshire 4/17/2012
New Jersey 4/17/2012
New Mexico 4/16/2012
New York 4/17/2012
North Carolina 4/17/2012
North Dakota 4/17/2012
Ohio 4/17/2012
Oklahoma 4/17/2012
4/20/2012 for e-filers
Oregon 4/17/2012
Pennsylvania 4/17/2012
Rhode Island 4/17/2012
South Carolina 4/15/2012
Tennessee 4/15/2012
Utah 4/17/2012
Vermont 4/17/2012
Virginia 5/1/2012
West Virginia 4/17/2012
Wisconsin 4/17/2012
September 2015
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27 28 29 30

Upcoming Tax Dates

September 7 Everyone
Federal Holiday (Labor Day) - Details

September 10 Employees who work for tips
If you received $20 or more in tips during August, report them to your employer - Details

September 10 Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the first 15 days of August.

September 14 Regular method taxes
Deposit the tax included in amounts billed or tickets sold during the last 16 days of August.

September 15 Individuals
Make a payment of your 2015 estimated tax if you are not paying your income tax for the year through withholding (or will not pay in enough tax that way). Use Form 1040-ES. This is the third installment - Details

September 15 Corporations
File a 2014 calendar year income tax return (Form 1120) and pay any tax, interest, and penalties due. This due date applies only if you timely requested an automatic 6-month extension - Details

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 timely requested an automatic 6-month extension - Details

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 - Details

September 15 Corporations
Deposit the third installment of estimated income tax for 2015 - Details

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 25 Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the last 16 days of August.

September 29 Regular method taxes
Deposit the tax for the first 15 days of September.

September 29 Regular method taxes (special September deposit rule)
Deposit the tax for the period beginning September 16 and ending September 26.

September 29 Communications and air transportation taxes under the alternative method (special September deposit rule).
Deposit the tax included in amounts billed or tickets sold during the period beginning September 1 and ending September 11.

September 30 Wagering tax
File Form 730 and pay the tax on wagers accepted during August.

September 30 Heavy highway vehicle use tax
File Form 2290 and pay the tax for vehicles first used in August.

View More Tax Dates