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T400a 2026
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- Click ‘Get Form’ to open the t400a in the editor.
- Begin by entering your name and address as shown on your notice. Ensure accuracy to avoid processing delays.
- In the 'To' section, specify 'Chief of Appeals' along with the address from your notice.
- Provide your telephone numbers, including area codes for both home and business contacts.
- If applicable, include the name and address of any authorized representative along with their contact number.
- Fill in the date of notice, year, month, and number of notice as printed on your assessment or determination notice.
- Indicate the tax year and provide your Social Insurance Number or Business Number.
- Clearly state the relevant facts and reasons for your objection. If more space is needed, attach a separate sheet.
- Finally, sign and date the form. If a corporation or trust is filing, ensure an authorized person signs it.
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