Canada Post's customer notice of 2 September says that for items mailed from Monday 2 November 2026 to Sunday 10 January 2027 the oversize and unpackaged surcharge rises from $21 to $30 and the out-of-spec surcharge from $300 to $400. In the same period Canada Post will honour late-delivery guarantee claims on Priority, Xpresspost and Expedited Parcel items mailed within Canada only when the item arrives two or more business days after the delivery standard. The notice does not name the currency or say who bears the surcharge: it applies to items mailed under the customer's agreement.
Key dates
- 2 Nov 2026
Peak period starts: higher oversize and out-of-spec surcharges, and late-delivery claims honoured only from two business days late Canada Post
- 21 Nov 2026
Updated Parcel Services customer guide and amendments take effect (content not seen) Canada Post
- 10 Jan 2027
Peak period ends for items mailed up to this date Canada Post
Every date of this rule, with what it means for a parcel and what to prepare. If a date moves, your calendar moves with it.
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Who it hits
What to prepare
- Reprice bulky and unpackaged items for 2 November to 10 January and decide whether to pass the surcharge on to customers
- Do not rely on the late-delivery guarantee for peak delivery promises, since it pays only from two business days late
- Compare with other carriers' 2026 peak notices as they appear; the Purolator page we opened covered only the 2025 peak
Our reading
Sources
- Customer notice: peak season 2026 · Canada Post · 2026-09-02
- Service notices · Canada Post
Related rules
- 1 Nov 2026Canada Post starts ending door-to-door delivery from October
Conversions in Etobicoke, Moncton and Riverview (month only; dates anticipated and subject to change)
Canada · In force - 12 Jun 2027Canada keeps one-way courier thresholds and extends CARM courier relief
Extended courier measures due to end (12 months from 12 June 2026; exact end date not confirmed)
Canada · In force - ·Canada's counter-tariffs reach low-value US parcels
A US-origin parcel of covered goods now owes surtax in Canada even below the C$40 and C$150 thresholds, so it must be accounted for and charged.
Canada · In force
Information, not legal advice. Dates come from official texts or quality legal and trade press, and slip often: always check the current text before acting. Back to the full radar.