June 15:
Individuals: Pay 2nd installment of 2007 estimated tax
Corporations: Deposit 2nd installment of income tax for calendar-year 2007

July 31:
Employers: File 941 for the 2nd quarter

September 4:
Individuals: Renter’s Rebate Claims due
Individuals: Property Tax Adjustment Claims due

September 17:
Individuals: Pay 3rd installment of 2007 estimated tax
Corporations: 1120, 1120A, and 1120S extensions expire, file 2006 tax return
Corporations: Deposit 3rd installment of income tax for calendar-year 2007

October 15:
Individuals: 1040, 1040A, and 1040EZ extensions expire, file 2006 tax return
Partnerships: 1065 extensions expire, file 2006 tax return

October 31:
Employers: File 941 for the 3rd quarter

December 17:
Corporations: Deposit 4th installment of income tax for calendar-year 2007