Individual tax calendar: Important deadlines for the remainder of 2018
- Details
- Published: Monday, 14 May 2018 08:14
- Written by Phillip Strickler, CPA.CITP

While April 15 (April 17 this year) is the main tax deadline on most individual taxpayers’ minds, there are others through the rest of the year that you also need to be aware of. To help you make sure you don’t miss any important 2018 deadlines, here’s a look at when some key tax-related forms, payments and other actions are due. Keep in mind that this list isn’t all-inclusive, so there may be additional deadlines that apply to you.
Please review the calendar and let us know if you have any questions about the deadlines or would like assistance in meeting them.
June 15
- File a 2017 individual income tax return (Form 1040) or file for a four-month extension (Form 4868), and pay any tax and interest due, if you live outside the United States.
- Pay the second installment of 2018 estimated taxes, if not paying income tax through withholding (Form 1040-ES).
September 17
- Pay the third installment of 2018 estimated taxes, if not paying income tax through withholding (Form 1040-ES).