before you start

Locate your completed Mason tax return from the previous year. It will contain your account number and the amount that you estimated for quarterly payments. If you used the tax tool to calculate and/or file your taxes this past tax season, you will also need the account password and PIN you created in April.

NEW LOOK & FEATURES!

The Online Tax Tool recently underwent an upgrade.  You will now notice a new look and features.  Some of the new features include the ability to see the estimates paid, prior year tax returns (beginning tax year 2024 and if filed using the Online Tax Tool), and a messaging system.  You will also no longer have to set up your tax account each year.  To access your account, please have your account number, social security number and address ready.

Please note that credit card payments cannot be made through the Online Tax Tool.  If you would like to make a payment using a VISA or Mastercard, please contact our office at 513-229-8535 for assistance.

We appreciate your patience as we transition to the new Online Tax Tool.

manual payments

To make a payment without using the Internet, print a blank payment voucher for the appropriate year here. A voucher and payment can be dropped off or mailed to: Mason Tax Office, 6000 Mason-Montgomery Road, Mason OH 45040. The City of Mason accepts cash, checks, money orders, and Visa and MasterCard payments. Visa and MasterCard payments can also be called in to the Tax Office at 513.229.8535 during regular business hours.

why make estimated payments?

Taxpayers who will owe Mason taxes that are not withheld by their employer must have 90% of their taxes paid by January 15 of the current year. The State of Ohio changed the due dates for estimated payments beginning tax year 2018. The new due dates are April 15, June 15, September 15, and January 15. Use the estimated payment option of the online tax tool to make your payments and avoid late payment penalties. If you need to adjust your declaration of estimated taxes due to changes in expected income, please contact the Mason Tax Office at 513.229.8535.