Where to mail a TransUnion Canada credit dispute
Mail your TransUnion credit dispute to: TransUnion Consumer Relations Department, 3115 Harvester Road, Suite 201, Burlington ON L7N 3N8 if you live anywhere in Canada except Quebec. Quebec residents and anyone requesting French-language service use a different address: TransUnion, Centre de relations au consommateur, P.O. Box 338, LCD1, Hamilton ON L8L 7W2. Investigations typically conclude within 30 days of receipt.
English service — all provinces except Quebec
TransUnion Consumer Relations Department 3115 Harvester Road, Suite 201 Burlington ON L7N 3N8
Residents of every province and territory except Quebec disputing items on their TransUnion credit file in English
French service — Quebec residents
TransUnion Centre de relations au consommateur P.O. Box 338, LCD1 Hamilton ON L8L 7W2
Quebec residents and consumers requesting service in French
Mail it without printing anything
Upload your document — we print it, seal it, and deposit it with Canada Post within 24 hours on business days. $6 flat, no account needed, and you get a Confirmation of Mailing email for your records.
Key facts
- TransUnion uses two dispute addresses: Burlington (3115 Harvester Road, Suite 201) for English service across Canada, and the Hamilton PO box (P.O. Box 338, LCD1) for Quebec and French-language service.
- Investigations typically conclude within 30 days of TransUnion receiving your dispute.
- You can also reach TransUnion Consumer Relations by phone at 1-800-663-9980.
- TransUnion and Equifax are separate bureaus — an error fixed at one does not automatically get fixed at the other.
- PostPal mails your dispute for $6 flat, printed and deposited with Canada Post the next business day — keep the Confirmation of Mailing email for your dispute records.
How to mail it, step by step
- 1
Get your TransUnion report and identify the errors
Request your free TransUnion consumer disclosure and list every item you want investigated: creditor name, account number, and what you believe is wrong.
- 2
Write your dispute and gather copies of evidence
Explain each disputed item clearly and attach copies of supporting documents such as statements or letters from the lender. Keep originals at home and a full copy of the package for yourself.
- 3
Pick the right address for your province and language
Outside Quebec, mail to the Consumer Relations Department at 3115 Harvester Road, Suite 201, Burlington ON L7N 3N8. In Quebec or for French service, mail to P.O. Box 338, LCD1, Hamilton ON L8L 7W2.
- 4
Mail it and note your 30-day window
Upload your dispute to PostPal — $6 flat, printed and deposited with Canada Post the next business day. The Confirmation of Mailing email dates your submission, so you know when the typical 30-day investigation clock should be running.
Common questions
What is the mailing address for a TransUnion Canada dispute?
For English service in all provinces except Quebec: TransUnion Consumer Relations Department, 3115 Harvester Road, Suite 201, Burlington ON L7N 3N8. Quebec residents and French-language requests go to TransUnion, Centre de relations au consommateur, P.O. Box 338, LCD1, Hamilton ON L8L 7W2.
I live in Quebec — which TransUnion address do I use?
Use the French-service address: TransUnion, Centre de relations au consommateur, P.O. Box 338, LCD1, Hamilton ON L8L 7W2. The Burlington address serves the rest of Canada in English.
How long does a TransUnion dispute investigation take?
Investigations typically conclude within 30 days of TransUnion receiving your dispute. Dated proof of mailing — like PostPal’s Confirmation of Mailing email — tells you when that window should have started.
Can I dispute with TransUnion by phone instead?
You can contact TransUnion Consumer Relations at 1-800-663-9980. Mail has the advantage of a paper trail: you keep a copy of exactly what you sent, plus dated proof it went out.
Do I also need to dispute the same error with Equifax?
Yes, if it appears on both files. TransUnion and Equifax are independent bureaus that do not share dispute outcomes, so each report must be corrected separately.
Should I send original documents to TransUnion?
No — send copies of statements, lender letters, and identification, and keep the originals. Also keep a complete copy of your dispute package in case you need to follow up after the investigation.
Sources
Addresses verified June 2026 against official sources. Always confirm on the official site before time-sensitive filings.