Deadline for filing 2012 individual tax returns .

Deadline for filing 2012 partnership returns.

Deadline for filing 2012 gift tax returns.

Deadline for making your 2012 IRA contribution.

Deadline for filing 2012 estate and trust income tax returns.

First installment of 2013 individual estimated tax is due.

Due date for calendar-year corporations to pay first installment of 2013 estimated tax.

Due date for calendar-year trusts and estates to pay first installment of 2013 estimated tax.