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Canada address validation and formatting

Use free Canada address validation to catch postal code and formatting errors. Paste an address, review the corrections and copy the formatted result.

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Postal code checksCanada Post formatRuns in your browser

One line per address line, or one line with commas. Name and company lines are fine.

Runs in your browser. Nothing you type is stored or sent anywhere.

Canada Post format

EMILY CARTER
204-1128 FORT ST
VICTORIA BC  V8V 3K8
The format follows Canada Post's guidelines.

What changed (6)

  • Changed every line to upper casePrint the address in upper case.
  • V8V3K8 → V8V 3K8Print the postal code in upper case, with one space between the first three and last three characters and no hyphen.
  • BRITISH COLUMBIA → BCUse the official two-letter province or territory abbreviation.
  • APT 204 1128 FORT STREET → 204-1128 FORT STREETA unit number can go before the civic number with a hyphen in between, without a unit word such as APT.
  • STREET → STUse the abbreviated street type.
  • Removed punctuation and # symbolsDon't use punctuation unless it's part of a proper name, and never use the # symbol.
This checks the format only, not whether the address exists or receives mail. Direct Mailer runs the same check on every piece before it prints; see address verification.

Rules from Canada Post's addressing guidelines, checked October 9, 2026. Covers civic addresses; rural routes, PO boxes and bilingual addresses may need a manual look. The unused-letters check (D, F, I, O, Q, U) is a widely documented convention rather than a line in the guidelines.

Catch address errors before your next mailing

Format for Canada Post

Get a consistent address block with capital letters, abbreviated street types, unit numbers and province codes, ready to copy into your mailing.

Check the postal code

Catch postal code format errors and check whether its first letter matches the province. The tool flags problems for you to review.

Check your whole list

Use address verification for whole lists when importing contacts into Direct Mailer. These checks apply formatting rules; they don’t confirm that an address exists.

Keep your address private

The checker runs in your browser. Your entered address is not sent to a server or stored by the tool.

Questions about checking Canadian addresses

How do I check an address in Canada?

Paste the address into the checker and review the result. It checks postal code format, the province match and Canada Post formatting rules. It cannot confirm that the address exists or identify who lives there.

What does a verified result tell me?

A verified result means the address passes the rules this checker applies. It does not mean the address was matched against Canada Post’s address database or that mail is guaranteed to arrive.

Does Canada Post require a particular address format?

Yes. Canada Post publishes addressing guidelines for elements such as unit numbers, street types, provinces and postal codes. This checker applies formatting rules to help prepare a consistent address block for mailing.

Can I check addresses through your API?

Yes. You get address checks in the direct mail API when saving recipients or sending mail. The checks use the same rules as this tool. There is no separate REST address-lookup endpoint.

Is this the same as Canada Post AddressComplete?

No. This tool checks formatting and postal code rules in your browser. It does not look up an address in Canada Post’s database. Use it to catch formatting errors before preparing your mailing.

How much does it cost to mail a letter?

Postage depends on the item’s size and weight. Once you’ve checked the address, use our Canada Post postage calculator to compare postage methods and the cost of printing and mailing through Direct Mailer.

Check every address in your next campaign

Catch errors across your mailing list before you spend on printing and postage.

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