Shipping Ashes from Canada to the US: Postal Rules and How to Do It

Mailing cremated remains from Canada to the United States is legal, but the research identifies one postal method: Canada Post handing off to USPS at the border. Private commercial couriers generally restrict individual shipments of human ashes, although some may accept commercial-account arrangements; confirm before using one.

This is often the simplest option for families managing a death in Canada remotely — no one needs to fly to Canada to pick up the ashes, and there are no airport security hurdles to clear.

How to Package the Ashes for Mailing

The packaging requirements are specific and non-negotiable. A package that does not meet them can be seized by customs or refused at the border.

Inner container: The ashes go into a sealed, leak-proof container. This is usually the plastic or metal urn provided by the crematorium. If using a decorative urn, seal it inside a heavy-duty plastic bag as a secondary barrier.

Outer container: Place the sealed inner container inside a sturdy shipping box with shock-absorbing padding on all sides. The outer box must be "sift-proof" — no gaps where fine particles could escape through seams.

USPS Box-CRE requirement (effective March 1, 2025): The United States Postal Service now requires all cremated remains entering or moving within the US to use the official "Cremated Remains" shipping supplies, designated as BOX-CRE. The old method — a standard cardboard box with a Label 139 sticker — is no longer accepted. Canadian senders should either procure USPS-compatible packaging or confirm with Canada Post that their Xpresspost packaging meets the current standard.

Documentation pouch: Place a certified copy of the Cremation Certificate inside a clear plastic envelope and tape it securely to the top of the outer box so it is visible without opening the package.

Customs declaration: Fill out Form CN22 or CN23 with the description: "Cremated Human Remains, No Commercial Value." Do not assign a dollar value.

Which Canada Post Service to Use

Use Xpresspost or Priority, the tracked services identified in the research. Confirm the current acceptance and tracking options with Canada Post before shipping.

Cost runs $150–$250 CAD depending on weight and destination. The Canadian funeral home can handle the packaging and shipping as part of their service — ask them to include it when you discuss cremation arrangements.

What Happens at the Border

Canada Post hands international packages to USPS at the border. Customs screening of cremated remains is routine — the visible cremation certificate and customs declaration are usually sufficient. Ashes are exempt from CDC and CBSA quarantine inspections because they carry no biological risk.

If the customs declaration is missing or incorrectly filled out, the package may be held for inspection. This adds days, not weeks, but is easily avoided by following the documentation steps above.

The Alternative: Carry Them on a Flight

If a family member is already traveling to Canada, carrying the ashes as carry-on luggage is faster. But it requires navigating CATSA and TSA X-ray screening, and the urn material matters — heavy metal, stone, or ceramic urns will be denied at security.

For families managing everything remotely from the US, mailing through Canada Post is the lower-friction option.

The American Dies in Canada — Family Emergency Guide includes a packaging checklist, Canada Post service comparisons, and customs declaration templates for mailing cremated remains.