Quarterly Estimated Tax Payments – Reminder
If you are making quarterly estimated tax payments to the IRS, the due date for the June 1 – August 31 quarter of the year is September 15.
For payments made using IRS Direct Pay, you can make payments until 8PM EST, and for payments using a credit or debit card, payments can be made up to midnight on the due date.
If the due date for making an estimated tax payment falls on a Saturday, Sunday, or legal holiday, the payment will be considered on time if you make it on the next day that’s not a Saturday, Sunday, or legal holiday.