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Where to mail your certificate application in Ontario

Mail your completed Ontario birth, marriage, or death certificate application to Office of the Registrar General, PO Box 4600, Thunder Bay ON P7B 6L8. This is Ontario's vital statistics office — it issues certified copies of births, marriages, and deaths registered in the province. Send the signed form, a copy of the required ID, and payment, and keep proof of mailing if your certificate is for a passport, estate, or other deadline.

Mail my certificate application — $6

$6 flat — postage included · no account needed

Mailing address

Verified August 2026

Certificate applications — birth, marriage & death

Office of the Registrar General
ServiceOntario
PO Box 4600
Thunder Bay ON  P7B 6L8

Use this address for birth, marriage, and death certificate applications for events registered in Ontario.

Mail my certificate application — $6

No printer, envelope, or stamp — we print and mail it the next business day.

Sources

Addresses verified August 2026 against official sources. Always confirm on the official site before time-sensitive filings.

Key facts

  • Ontario's vital statistics office issues certificates only for events (births, marriages, deaths) that were registered in Ontario — apply to the province where the event happened, not where you live now.
  • A mailed application must include the signed application form, a copy of the required ID, and payment (usually a cheque or money order) — an unsigned or unpaid application is returned.
  • Mailed applications take longer than online orders because processing only starts once the envelope arrives, so allow extra time for passports, estates, and other deadlines.
  • Keep proof of mailing for time-sensitive requests — PostPal emails you a dated Confirmation of Mailing when your envelope is handed to Canada Post.
  • PostPal prints your completed application and mails it to Office of the Registrar General the next business day — no printer, envelope, or trip to the post office.

How to send your letter

  1. 1

    Confirm the event was registered in Ontario

    Certificates come from the province where the birth, marriage, or death was registered. If the event happened in Ontario, Office of the Registrar General is the right office; if it happened in another province, apply there instead.

  2. 2

    Fill out and sign the application

    Download the current birth, marriage, or death certificate application from the Ontario vital statistics website (linked in the sources below), complete it, and sign it. Attach a copy of the ID the form asks for and include your payment.

  3. 3

    Address the envelope to the vital statistics office

    Mail it to Office of the Registrar General, PO Box 4600, Thunder Bay ON P7B 6L8. Put your own return address on the envelope so anything undeliverable comes back to you.

  4. 4

    Send it without leaving home

    Upload your completed application to PostPal with this address prefilled. We print it, add it to a sealed envelope, and deposit it with Canada Post within one business day for $6 — postage included.

Common questions

Where do I mail my birth certificate application in Ontario?

Mail it to Office of the Registrar General, PO Box 4600, Thunder Bay ON P7B 6L8. The same office issues marriage and death certificates for Ontario, so applications for all three go to this address.

Can I mail a vital statistics application instead of ordering online?

Yes. Ontario accepts certificate applications by mail — send the signed form, the required ID copy, and payment to Office of the Registrar General. Mail is a common choice when you can't order online or need to include documents the online system won't accept.

What do I need to include when I mail my application?

Include the completed and signed application form, a photocopy of the identification the form requires, and payment for the fee (typically a cheque or money order). Check the current fee and accepted payment on the official Ontario application form before mailing.

How long does a mailed certificate take?

Longer than an online order, because processing only begins when your envelope arrives and the finished certificate is mailed back to you. If you're up against a passport, travel, or estate deadline, mail early and keep proof of the date you sent it.

Do I have to apply in the province where I was born?

Yes. Certificates are issued by the province where the event was registered, not the province you live in now. For an event registered in Ontario, apply to Office of the Registrar General, even if you've since moved away.

Can PostPal mail my Ontario certificate application for me?

Yes. Upload your completed, signed application and PostPal prints it and mails it to Office of the Registrar General the next business day for $6, with a dated Confirmation of Mailing emailed to you. You still fill out and sign the form yourself — we handle the printing, envelope, and postage.

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