Canadian industry

491110 Postal service

Services postaux

Official definition

This Canadian industry comprises establishments primarily engaged in operating the postal service. Establishments of the Post Office, other than those primarily engaged in providing courier services, are classified in this industry, as well as establishments that carry on one or more functions of the postal service on a contract basis, except the delivery of mail in bulk.

Classification Reference

Official classification fields for this page

Official classification fields taken from the current StatCan source bundle.

Characteristic Description
Official titlePostal service
ClassificationNAICS Canada 2022 Version 1.0
Publishing authorityStatistics Canada
Hierarchical levelCanadian industry
Parent code49111 - Postal service
International correspondenceH5310
Sourcehttps://www.statcan.gc.ca/en/subjects/standard/naics/2022/v1/index
Source verification2026-05-05
Canada Business Context

Canada-wide tax and filing context

Canada-wide business, tax, and filing context from the local country pack and tax pack.

Characteristic Description
Tax authorityCanada Revenue Agency (CRA)
Business identifierBusiness Number (BN): 9-digit identifier with program account suffixes such as RT0001 for GST/HST, RP0001 for payroll, and RC0001 for corporate income tax.
Filing requirementsBusiness Number registration; Form T2125 (Statement of Business or Professional Activities) attached to T1; Form T2 (Corporation Income Tax Return); Form T5013; Form GST34
Sector authorityTransport Canada and provincial transportation ministries

Exclusions

  • delivering advertising material, door-to-door (See 541870 Advertising material distribution services)
  • delivery of mail in bulk to the Post Office (classified depending on the type of transportation utilized)
  • mail and letter delivery, private (air service) (See 492110 Couriers)
  • providing courier services, including separate courier establishments of the Post Office (See 492110 Couriers)
  • providing mail box services along with other business services (See 561430 Business service centres (CAN))

Examples

  • mail delivery, private (except air)
  • post office operations
  • letter delivery, private (except air)
  • mail delivery, private (except air)
  • mail service, contract
  • post office box service
  • post office operation, contract
  • post office operations
  • postmasters, rural
  • rural mail carrier service
  • sub post office

Classification Confidence Score

5 of 6 factors passing

8/ 10
Verified official sourcenaics-scian-2022-structure-v1-eng.csv (2026-05-05)
International crosswalkISIC Rev. 4 mapping: H5310
Previous edition migrationNAICS 2017 to 2022 continuity confirmed
Complete hierarchy5 levels confirmed in hierarchy
Size or threshold documentedSME thresholds documented in federal tax pack
Trade or export matchNo direct HS code correspondence in current bundle
Legacy crosswalkLegacy system (SIC 1980) retired in this region
Business Profiles

When you might need code 491110

These role examples come from the official title and example wording attached to this code.

01 491110
Postal service

Use this page when the business is directly described by the official title or definition for 491110 Postal service. It is the closest source-backed checkpoint before BN registration, GST/HST review, banking onboarding, or internal classification work.

02 491110
mail delivery, private (except air)

Use this page when the activity is described in the official StatCan example wording as mail delivery, private (except air). Compare the definition, exclusions, and nearby codes here before attaching 491110 Postal service to a business file.

03 491110
post office operations

Use this page when the activity is described in the official StatCan example wording as post office operations. Compare the definition, exclusions, and nearby codes here before attaching 491110 Postal service to a business file.

04 491110
letter delivery, private (except air)

Use this page when the activity is described in the official StatCan example wording as letter delivery, private (except air). Compare the definition, exclusions, and nearby codes here before attaching 491110 Postal service to a business file.

Business Map

Business categories in this branch

A rotating set of business activity examples linked to this part of the Canadian hierarchy.

WarehousingFleet supportFreight movementCourier delivery

In this section

  • 491110Postal service

Commonly confused with

541870 — Advertising material distribution services

delivering advertising material, door-to-door (See 541870 Advertising material distribution service...

492110 — Couriers

mail and letter delivery, private (air service) (See 492110 Couriers)

561430 — Business service centres

providing mail box services along with other business services (See 561430 Business service centres...

ISIC Rev. 4 correspondence

H5310Postal activities
US NAICS reference491110 - Postal Service

Source row

491110Postal service

This page mirrors the source row from the structure CSV and the matching rows from the elements and crosswalk files.

Frequently asked questions

What does code 491110 cover?

Postal service: This Canadian industry comprises establishments primarily engaged in operating the postal service. Establishments of the Post Office, other than those primarily engaged in providing courier services, are classified in this industry, as well as establishments...

Which level of the hierarchy is 491110?

It is a canadian industry page in the NAICS Canada 2026 hierarchy.

What is the parent of 491110?

It rolls up to 49111 Postal service.

Should I stop at 491110 or go lower?

This page already points to the exact six-digit Canadian industry in the current site structure.

Are official inclusion notes attached to 491110?

No inclusion rows are attached to this page in the local elements file.

Are there exclusion notes for 491110?

Yes. 5 exclusion note(s) help separate this page from nearby codes.

Does 491110 include illustrative examples?

Yes. 11 example row(s) are available for boundary checking.

What kinds of businesses often start from this page?

Examples in this branch include Warehousing, Fleet support, Freight movement, Courier delivery.

Is there an ISIC mapping for 491110?

Yes. The page shows H5310 Postal activities.

Does this page show a US NAICS reference?

Yes. A same-code US reference is attached: Postal Service.

Why are both English and French titles shown?

NAICS Canada is bilingual, so the page keeps both language titles visible for comparison and lookup.

Where does the page text come from?

From the local StatCan structure file, elements file, ISIC crosswalk, and the bundled US 6-digit reference workbook.