How to Update Your SIN and Federal IDs After Divorce in Canada

Try updating your driver's licence before your SIN and you'll get turned away at the counter. Agencies cross-reference the federal SIN database to verify your name, so if Service Canada still has your married name while you're requesting a licence in your birth name, the system flags a mismatch and rejects the application.

This sequence problem trips up nearly every newly divorced person, especially in Yukon where most government offices are concentrated in Whitehorse and a wasted trip means a wasted day.

Step 1: Update Your Social Insurance Number First

Your SIN record is the foundation. Every other agency — provincial motor vehicles, health insurance, passport office, CRA — checks against it. This is always step one after you have your Certificate of Divorce.

How to apply:

• Online: Through your My Service Canada Account. Processing takes about 5 business days.
• In person: Visit the Service Canada centre in Whitehorse. Same-day processing.
• By mail: Send the required documents. Processing takes approximately 20 business days.

Documents needed: Certificate of Divorce, birth certificate, and primary photo ID. If you're reverting to your birth name, your birth certificate serves as proof of the name you're resuming.

Cost: Free.

The SIN number itself doesn't change — Service Canada updates the name associated with your existing number.

Step 2: Update Your Health Care Card

In Yukon, visit the Health Care Insurance Plan office in Whitehorse with your Certificate of Divorce and your updated SIN confirmation. The database update happens same-day, though the new physical card takes about four weeks to arrive by mail.

Don't skip this step. An outdated health care card can create billing issues with out-of-territory medical providers and complicate any workplace benefits transitions.

Cost: Free.

Step 3: Update Your Driver's Licence

Now that your SIN is updated, the Yukon Motor Vehicles Office can process your licence change without a name-matching rejection.

Documents needed: Certificate of Divorce, current driver's licence, and birth certificate.

Cost: $15 for a replacement card or $50 for a full reissuance.

Processing: You'll receive a temporary 90-day paper licence immediately. The permanent card arrives by mail in 4–10 days.

Your updated driver's licence then becomes your primary photo ID for financial institutions, which you'll need for the next wave of updates — closing joint bank accounts, changing beneficiary designations, and transferring property titles.

Step 4: Apply for a New Passport

A post-divorce passport requires a complete new application — you cannot use the simplified renewal form. This catches people off guard because it means new photos, new references, and longer processing times.

Documents needed: Full passport application form, Certificate of Divorce, birth certificate, two passport-size photos.

Cost: $120 for a 5-year passport, $160 for 10-year.

Processing: 10 business days if you apply in person at a Service Canada passport office, or 20 business days by mail.

If you have upcoming travel, start this process early. There's no way to expedite a name-change passport application the way you can with a standard renewal.

Step 5: Update Vehicle Registration

While you're at the Motor Vehicles Office, update your vehicle registration if you're keeping a vehicle that was registered jointly or under your married name. Bring the same documents plus your vehicle registration papers.

The Cascade Effect

Each ID update feeds into the next. Banks need your updated driver's licence. The Land Titles Office needs your updated legal name before processing a property transfer. Pension administrators need your current legal identity confirmed. Doing any of these out of order creates a domino effect of rejections.

For the complete sequence — including CRA notifications, beneficiary changes, pension divisions, and property transfers — the Yukon After-Divorce Checklist maps every task in chronological order with exact forms, fees, and processing times.

See more Yukon guides →