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DT Professional Suite Software Support

Help and product support are always available

Contact the DT Professional Suite Software Support Department

Support for users of the DT Professional Suite is available through a number of channels.

Support hours

Our support team is at your service when you have questions about the use of your DT Professional suite software.

Feb 19 to April 30 , 2024

Monday to Friday 8:00 am to 8:00 pm EST
Saturday:  9:00 am to 5:00 pm EST
Sunday: Closed

Mar 29 and April 1, 2024
Good Friday and Easter Monday
9:00 am to 5:00 pm EST

Contact our support department at: 1 800 663-7829.

Contact methods

Support for the DT Professional Suite
is available at
Support for DT Practice is available at

You can reach our software support team by calling the Thomson Reuters support lines at
514-733-8355 in Montreal,
or toll free 1-800-663-7829.

Select the Software support option from the Help menu, and click Support request form. Fill out the form, print it and fax it to Thomson Reuters
1 866 490 2770. A member of the software support team will quickly get back to you.

Useful links

Access our tax calculator or learn more about the Thomson Reuters Educational Program.

Knowledge bases

Your source for update notes on product releases, technical answers, product documentation and more.

Support request form

If you are unable to find the answer to your question in the Knowledge base, send your questions by email through the Support request form, by selecting Software support from the Help menu in the DT Max program.

Select the Support request form through the Help menu.

Fill out the form and click on Submit email.

Technical requirements for the DT Professional Suite

Call us at 1 866 653 8629

for any inquiries about pricing for the DT Professional Suite products, or write us at