As of August 29, 2025 U.S. customs changes now require additional steps when returning small parcels under $800. We’re all adapting, small businesses, Canada Post, and clients alike, so we’ve created this guide to hopefully make the process easier using our provided envelope.
Good news: There are no customs duties or fees to pay.
If you prefer, you can ask a Canada Post representative if they can complete this process in their system for you. However, we’re not yet sure if this option is available everywhere.
Even if you decide not to complete the steps yourself, please read through all of them, as the guide may contain important information that could affect your shipment.
Step-by-Step Guide - 🎥 [Watch Video]
Step 1. Download the Zonos Prepay App
Step 2. Create Your Free Account
Step 3. Start a New Shipment
Step 4. Add the Item Details.
The comments in this example for a long term test kit also applies to short term and radon in water tests. Please adjust the $ value accordingly.
Step 5. Review and Complete
Step 6. Get Your Declaration ID & QR Code
Saving the QR Code:
Tip: If those options don’t appear, simply take a screenshot of the QR code.
You can show the QR code on your phone or provide the Declaration ID to the Canada Post clerk when you ship your kit.