How to mail documents to a court in Canada

To file documents with a Canadian court by mail, address them to the registry (or clerk) of the specific courthouse handling your matter, write your court file number on every page and on the envelope, and send copies, not your only originals. Two things trip people up: mailing the court *files* your documents but does not *serve* the other party (a separate step), and a filing counts from the day the registry receives and date-stamps it — not the day you mail it. Find your courthouse's exact address and mail-filing rules in our court registry directory below.

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Mailing address

Verified August 2026

Envelope format — any court registry

[Court name] — Registry
[Courthouse street address]
[City] [PR]  [Postal code]

Address filings to the registry/clerk, not to a judge. Always confirm the exact courthouse and that it accepts filings by mail before sending — many registries have moved to online filing. Find yours in the directory below.

Sources

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

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Key facts

  • File with the court that has your matter, at the right level and division — small claims, family, Superior/Supreme, or provincial/criminal. Filing at the wrong court or location gets your documents returned or rejected.
  • Your court file (case) number goes on every page and on the outside of the envelope. It is how the registry matches your documents to your file — without it, they can sit unprocessed.
  • Send copies, not your only originals. Mail can be delayed or lost, and most filings are made with copies. Keep the signed original unless a rule specifically requires you to file it.
  • Mailing the court is filing, not serving. You must serve the other party separately, by the method and within the time the rules require. Filing without serving (or vice versa) can derail your matter.
  • A document is generally filed when the registry receives and date-stamps it, not when you mail it. Post well ahead of any limitation period or hearing date.
  • Confirm the registry still accepts filings by mail. Some courts are online- or in-person-only now; our per-courthouse pages flag which ones take mail.
  • PostPal prints your documents and deposits them with Canada Post the next business day for $6 — no printer, envelope, or trip to the courthouse, with your return address printed for a stamped copy back.

How to send your letter

  1. 1

    Identify the exact court and location

    Work out the court level and division your matter belongs to (small claims, family, Superior/Supreme, provincial/criminal), then the specific courthouse that holds your file. Use the province's official court-locator, or find the courthouse in our directory below with its mailing address and mail-filing status ready.

  2. 2

    Prepare the documents and copies

    Include every required form and the correct number of copies, each showing your court file number. Add a short cover letter listing what you are filing. Send copies and keep your signed originals unless the rules require the original to be filed.

  3. 3

    Address it to the registry

    First line: the court name followed by "Registry" (or "Clerk of the Court"). Then the courthouse mailing address. Write your court file number on the envelope so the registry can route it to your file.

  4. 4

    File on time — and serve the other side separately

    Post well before your deadline; filing takes effect when the registry receives it. Include a self-addressed stamped envelope if you want a date-stamped copy back as proof. Then serve the other party by the required method. No printer or envelopes? Write or upload your documents to PostPal and we print and deposit them with Canada Post the next business day for $6.

Common questions

Can I file court documents by mail in Canada?

Often, but not always. Many registries accept filings by mail; others have moved to online or in-person filing only, and some documents (like those needing a fee or a commissioner) have special rules. Always confirm with the specific courthouse before mailing anything with a deadline — our per-courthouse pages flag which registries accept mail.

Who do I address court documents to?

The registry or clerk of the courthouse handling your matter — not a judge and not the other party. Use "[Court name] — Registry" or "Clerk of the Court" on the first line, then the courthouse mailing address, with your court file number on the envelope.

Is mailing documents to the court the same as serving the other party?

No — they are two different steps. Mailing to the registry files your documents with the court. Serving delivers them to the other party under the rules (who may serve, how, and by when). You usually have to do both, and doing only one can get your material rejected or your matter delayed.

When is my filing considered on time?

Generally when the registry physically receives and date-stamps your documents, not the day you mail them. So build in mailing time and post well ahead of any limitation period or hearing date. Keep proof of what you sent and when.

Should I mail originals or copies of my court documents?

Copies, in almost all cases — mail can be delayed or lost, and most filings are made with copies while you keep the signed original. Only send an original when a rule or the registry specifically requires it, and use trackable mail if you do.

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