LetterAgent

Mail physical letters by just asking your AI assistant.


Status: LetterAgent is currently in private testing ahead of public launch. Everything on this page describes the service as it works today.

Home > Guides > Post office print label from phone

Can the post office print my shipping label from my phone?

Yes. Canada Post offers QR-code printerless labels: you buy the label on your phone, get a QR code instead of a printable file, and the clerk scans it at the post office and prints the label for you. Your parcel has to meet Canada Post's minimum parcel size, and not every retail outlet offers the same services.

How does a QR-code label actually work?

Normally, buying a label online gives you a PDF you're expected to print. The QR-code option skips the printing: after checkout, you get a QR code tied to that shipment. At the post office, you show the code on your phone screen, the clerk scans it with their reader, and their system pulls up the label and prints it right there. Your phone never plugs into anything and never transfers a file; the scan is the whole handoff.

One practical note: keep your screen bright and clean. A cracked screen or heavy glare can make the code hard to scan, and the line behind you won't love the delay. Screenshot the QR code as a backup in case your data connection drops inside the building.

Printerless QR-code labelRegular printed label
You needA phone with the QR code on screenA printer and the label PDF
At the post officeClerk scans the code and prints the labelClerk scans your already-printed label
Best whenYou have no printer, or it ran out of inkYou want the fastest counter visit

What does the package itself need?

You still pack and seal the box yourself; the outlet handles the label, not the packaging. And the parcel has to meet Canada Post's minimum parcel size. A padded envelope that's too small, or a loose item with no box, won't qualify. If your item is tiny, put it in a box that meets the minimum rather than arguing the envelope: the sort equipment is built for minimum-size pieces, and undersized parcels get lost in it.

Bring the parcel ready to go. The clerk prints the label and applies it, and you're done. You don't need tape, a marker, or anything else beyond the packed box and your phone.

What are the limits?

The QR code is a label, not a payment waiver: you still pay for the postage when you buy it on your phone. QR codes also have a validity window, like regular labels; don't buy the label weeks before you plan to visit the outlet. And retail outlets aren't identical: a full corporate post office and a small franchise counter don't always offer the same services, so if you're heading to a smaller outlet, confirm they can scan QR-code labels before you go.

Finally, this is a Canada Post flow. A QR code from one carrier or seller can't be scanned by another's system. The label and the counter have to belong to the same carrier.

What about a LetterAgent label?

LetterAgent's flow gives you a label PDF: you describe the parcel to your AI assistant, approve the exact quoted price, pay once, and receive the label to print. LetterAgent labels are Canada-only Canada Post Xpresspost, up to 5 kg. If you have no printer at all, buy the label as a QR-code label through Canada Post's own flow and have the outlet print it; if you have a printer, the PDF is the faster counter visit.

Related guides

Ready to ship it? Get a shipping label with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and get your label.


LetterAgent is a working name. Prices include print, postage, and our service fee. US prices in USD, Canadian prices in CAD (Canadian prices exclude applicable sales tax, added at checkout). Currently in private testing.

Need help? Ask your assistant: it can check a job's status any time. If it ever can't handle something: hello@getletteragent.com

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