You will be able to change your personal with the CRA quickly and easily using My Account on the CRA website. If you have already created an account simply login using your CRA login and follow the links provided to change whatever information is necessary.
If you have not registered with the CRA you will have to create an account before you can make any changes. Follow the link above to My Account and scroll down until you see the CRA Login and CRA Register Buttons. Click the CRA register button and follow the instructions. You will need your CRA Access code which is usually located on your Notice of Assessment sent to you in the mail from the CRA after you have completed your taxes. If you can’t find this code you can request one be mailed to your address on file with the CRA. Once you have the code you will be able to login and make changes to your personal information.