Back to blog
Updated: ·2 min read·MesColis / ShipSmarter editorial team

Do You Need a Business Number to Ship From Canada to the USA?

Business numbers, RM accounts and CERS: distinguish identifiers and reporting exceptions before shipping goods from Canada to the United States.

Do You Need a Business Number to Ship From Canada to the USA?
Quick answer

A commercial shipment to the US does not automatically require a Canadian export declaration. Business-number, RM-account and import-identification requirements are separate. Check the goods, final destination and applicable rules with the CBSA or your broker.

Distinguish the identifiers

A Canadian business number has nine digits. Program accounts are added to it: an RT tax account and an RM account serve different purposes. Do not copy an arbitrary identifier into a customs field.

Check whether a declaration is required

CBSA reporting exceptions include non-restricted goods exported for consumption in the US. Transit through the US to another country follows different rules. This exception does not remove US import requirements or any necessary permits.

When an RM account is relevant

To report through CERS, an exporter needs a business number and an RM account active for export. Exporter program enrolment uses the CARM Client Portal. Check your status before preparing a declaration.

Identify the US importer

Agree with your broker who acts as importer of record and which identifiers are required. The sender paying duties does not, by itself, establish who the importer is. Do not assume a Canadian number replaces every US identifier.

Prepare shipment information

Gather the precise description, value, origin, classification and party details. Ask the carrier which documents the selected service requires. A commercial invoice and an export declaration are different documents.

Frequently asked questions

Does every commercial US-bound parcel require an RM account?

A commercial shipment to the US does not automatically require a Canadian export declaration. Business-number, RM-account and import-identification requirements are separate. Check the goods, final destination and applicable rules with the CBSA or your broker.

Frequently asked questions

Does every commercial US-bound parcel require an RM account?

A commercial shipment to the US does not automatically require a Canadian export declaration. Business-number, RM-account and import-identification requirements are separate. Check the goods, final destination and applicable rules with the CBSA or your broker.

This guide is published by MesColis.ca Inc., which operates MesColis and ShipSmarter. Lire en français

Related articles

Commercial Invoice for Shipping from Canada to the USA (2026 Guide)Canada–US commercial invoice: prepare description, value and origin. Check service requirements, including those for gifts and returned goods.Read article CUSMA Certification of Origin: A Guide for Shipping to the USA (2026)No official form: the 9 required elements, who can sign, the 12-month blanket period, low-value exemptions and how CUSMA compliance relates to US tariffs.Read article De Minimis Rules Between Canada and the USA: 2026 GuideThe US has suspended its US$800 de minimis exemption. What Canadian sellers now pay shipping south, and the CA$40 and CA$150 thresholds coming north.Read article How to Return a Package to the USA From Canada (2026 Guide)Returning a package to the USA from Canada: the steps, prepaid vs bought labels, the "returned goods" customs declaration, and how to compare carriers.Read article
Ready to compare rates?
Free signup — see every Canadian carrier side-by-side in under 30 seconds.
Start free
Privacy choices

Essential cookies keep MesColis working. If you accept, we also measure site usage and how our Meta ads (Facebook, Instagram) perform.

Privacy policy