IRS Tax Withholding Estimator

The IRS tax withholding estimator is available at the following link:

For faculty, staff, and students who determine a change to their withholding is necessary, please update federal withholding in iO under Me > Pay > Tax Withholding. More information is available in the iO Training Catalog (search W-4).

NOTE: Foreign nationals who are Nonresident Aliens for U.S. Tax Purposes may not be able to change their withholding per IRS regulations. Please consult with Payroll before making any changes.

Please be advised that Rice’s payroll team cannot provide tax advice nor advise employees on tax withholdings. If you have any further questions about your withholding, please contact your tax advisor or refer to

The Controller's Office is located in the Cambridge Office Building, also known as COB, at the intersection of S. Main street and Cambridge street.

In this building you will find the the following Departments:

The Cashier's Office is a division of the Controllers Office, however, it is located in the Allen Center, directly behind the Cambridge Office building.

Our Location:

Cambridge Office Building
6100 Main Street MS 70
Houston, Texas 77005-1827