Change either your first name or last name

We do not accept name changes online.

By phone:

Change either your first or last name by phone

You can change your name by phone if you haven't already changed one of your names. For example, if you previously changed your first name, you cannot change your last name by phone.

Exception: If you’re changing back to your birth name, and we have that name on file, you can do it by phone (documentation not required).

Before you call

To verify your identity, you'll need:

• Social Insurance Number
• Full name and date of birth
• Your complete address
• Your personal account open or an assessed return, notice of assessment, reassessment, or other tax document

Telephone number

1-800-959-8281

Yukon, Northwest Territories and Nunavut:
1-866-426-1527

Outside Canada and the U.S. (hours in ET):
613-940-8495

Hours

Table 1

Day	Hours
Mon to Fri	8 am to 8 pm
Sat	9 am to 5 pm
Sun	Closed

Closed on public holidays

By mail or fax:

Change your first or last name by mail or fax

You must provide documentation if you have already changed your name.

Write a letter with the following:

• original or certified true copy of one of the following documents:
  • a name change certificate from a provincial/territorial vital statistics department
  • a court order issued under an act on change of name
• your old and new names
• your social insurance number
• your signature

Send your letter by mail or fax to your tax centre:

• Find your tax centre

Change both your first name and last name

Changes to both a first and last name must be done by mail or fax.

By mail or fax:

Write a letter with the following:

• original or certified true copy of one of the following documents:
  • a name change certificate from a provincial/territorial vital statistics department
  • a court order issued under an act on change of name
• your old and new names
• your social insurance number
• your signature

Send your letter by mail or fax to your tax centre:

• Find your tax centre