Video Tips: Third Quarter Estimates Due September 15th

The September 15 estimated tax due date is the third installment deadline for individuals who do not have enough tax withheld during the year, and it is generally paid using Form 1040-ES. This payment helps cover income that is not being fully satisfied through withholding, such as self-employment income, investment income, or other sources where tax is not automatically withheld.

If you rely on estimated tax payments, it’s important to make this installment on time to help avoid underpayment issues later in the year.

Share this article...

Want our best Tax and accounting tips and insights delivered to your inbox?

Sign up for our newsletter.

I confirm this is a service inquiry and not an advertising message or solicitation. By clicking “Submit”, I acknowledge and agree to the creation of an account and to the and .

Main Office (Mailing/Dropping off Documents)

545 Metro Place South, Suite 100
Dublin, Ohio 43017
By appointment: 9am - 5pm, M-F;
February 1 - April 30: 8am - 8pm everyday
(614) 761-3247
9am - 9pm EST, everyday

Other Offices

Other locations are available for an appointment.

FAQs Frequently Asked Questions
Type your question here.
Please fill out the form and our team will get back to you shortly The form was sent successfully