If you are claiming mileage for the use of your personal vehicle for business purposes, you must keep a mileage log indicating the odometer readings, the miles driven, the purpose for the trip(s) and the date(s) of travel.
Filing Deadlines

Entity
Type
Form
Deadline(s)
Individuals Income Taxes

Estimated Taxes
1040

1040ES
April 15

April 15
June 15
September 15
January 15
Businesses Corporation Income

Estimated Taxes




Partnership/LLC Income

Sole Proprietorship Income

Payroll Taxes





Wage & Information Returns
1120

1120ES




1065

1040 Sched. C

940
941




W-2
1099
W-3
1096
March 15

April 15
June 15
September 15
December 15

April 15

April 15

January 31
January 31
April 30
July 31
October 31

January 31
January 31
February 29
February 29
Charities & Non-Profits Exempt Income Return 990 15th day of
5th month after
fiscal year-end
Trusts & Estates Annual Return 1041 April 15
Retirement Plans Annual Return



Withholding Taxes
5500



945
15th day of
7th month after
fiscal year-end

January 31
April 30
July 31
 

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