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MAC ID is a unique, common identifier enabling single sign-on for a number of McMaster systems and applications. Your MAC ID is not your employee or student number. If you are unsure if you have a macid, it is generally, the first part of your email address before the @ symbol.

You are required to change your MAC ID password every year.


Changing Your Macid Password

Use the online password change tool to change your password to the new, more secure standard.

Getting Started

Obtaining a MAC ID

  • All existing employees have been provided with a MAC ID. New employees and students are assigned a MAC ID. This MACID needs to be activated.

Activate Your MAC ID

Activating Your Email Account

  • Students and employees are required to also activate their McMaster email accounts. Students are eligible activate their email accounts on the day after they have enrolled in classes. Employees may activate their email accounts on their official start date.
  • To activate your email account:
    • Please go to select the "Navigator" in the top right corner of the screen.
    • Click on Macid and Email Management.
    • Select the Activate Button, then save.
    • Please note that your account may not be fully functional for 24 hours.

Ongoing Maintenance


Service Bulletins

Citrix Receiver Client Update

UTS asks Citrix users to upgrade Citrix Receiver Client to the most current version by February 28, 2017. See UTS Citrix website for installation and removal information.

Mosaic Upgraded Interface

Service Desk

Client Self Service:
Hours: Monday - Friday
8:30 am - 4:30 pm
Phone: 905-525-9140 x24357 (2HELP)
Location: Main Campus BSB Rm. 245
Service Catalogue:

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