Royal Mail's Christmas 2026 posting dates are out, and your last order date is earlier

Published 20 September 2026, updated 14 October 2026 · 7 min read · Angler Fulfilment

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Every year the same thing happens. A seller copies Royal Mail's last posting date onto the shop, takes orders right up to it, and then discovers that an order placed at 4pm on that date cannot physically be picked, packed and handed over the same afternoon. The parcel goes the next working day, the customer gets it after Christmas, and the review is about the shop rather than the carrier.

The fix is not complicated, and this year the dates to work from are already out.

The arithmetic

Three steps, in this order.

• Start from the carrier's last posting date for the service you actually use, not the fastest one they publish.
• Step back to your dispatch cut-off on that day. Ours is 2pm on a working day and 1pm on Saturday, so an order that lands at 2:05pm is already a day later than it looks.
• Subtract one working day. This is the margin, and it is what absorbs a card payment held for review, a stock discrepancy found at the pick face, or a courier collection that runs late.

That gives a date you can publish and keep. It will feel early. That is the point: the shops that get through December without complaints are the ones that stopped promising two days before they had to.

Christmas 2026: Royal Mail’s dates and the order dates they give you

The second column is Royal Mail’s. The third is the last order that still makes it, using our cut-off of 2pm on a working day and 1pm on Saturday. The fourth is the date we would publish, one working day earlier again.

If nothing leaves your building on a Saturday, two rows move. Tracked 48 has to be handed over on Friday 18 December, so its date to publish becomes Thursday 17. And the working day before Monday 21 is Friday 18, so that becomes the date to publish for 1st Class, Royal Mail 24 and express48.

Returns have a date too. Saturday 19 December is Royal Mail’s last posting date for Tracked Returns 48 to arrive back with the sender before Christmas. If you promise a refund or an exchange before Christmas, that is the date your customer needs to post by.

Where these dates come from

Checked on 14 October 2026 against Royal Mail’s own Christmas last posting dates page and its guide for business customers, version 1.4, dated 13 October 2026. The personal and business lists agree on every service they share. Royal Mail adds that the dates are correct at the time of publishing and subject to change, so look again in the first week of December.

Take them from Royal Mail rather than from a roundup. When we searched, several sites still listed dates that do not match Royal Mail’s, some on weekdays that do not fall on those dates in 2026. If you sell through another carrier, it publishes its own dates and they will not be the same.

The other dates in the season

Three more dates shape what the same weeks cost.

• 5 October: Royal Mail parcel prices rose, for stamps and for business accounts. Every new price is in our write-up of the rise.
• 2 November to 10 January: Royal Mail’s peak surcharge of 10p to 30p per item applies to business account parcels, on top of fuel and the other charges set out in every Royal Mail surcharge.
• November and December: our own peak surcharge of 20p per order, published on the rate card rather than added later.

The whole cost picture for the quarter is set out separately in the Q4 cost calendar.

Where to put the dates

One place is not enough, because customers arrive at different points.

• A banner on every page, not just the home page.
• On the product page, near the delivery estimate, where the decision is actually made.
• At checkout, as a line of text rather than a tooltip.
• In the dispatch email, so anyone who ordered before the cut-off knows they made it.

Then take them down in January. A shop still showing a Christmas cut-off in February tells a visitor that nobody is looking after it.

What actually goes wrong in the last week

Not the carrier, usually. In order of how often we see it: packaging runs out, because the December usage was estimated from November; a bestseller sells out and the substitution is handled by email rather than by a policy; and the person who knows the process takes their own Christmas break without writing anything down.

All three are September and October problems pretending to be December problems. The month by month version of that plan is in peak season starts in September, not November.

Christmas cut-offs, answered

What are Royal Mail’s last posting dates for Christmas 2026?

Friday 18 December for 2nd Class, 2nd Class Signed For and Royal Mail 48; Saturday 19 December for Tracked 48; Monday 21 December for 1st Class, 1st Class Signed For, Royal Mail 24 and Tracked 24; and Wednesday 23 December for Special Delivery Guaranteed. Royal Mail published them on 13 October 2026 and says they may change, so check its Christmas page again in December.

What last order date should I put on my shop for Christmas 2026?

With a 2pm dispatch cut-off and one working day of margin: Thursday 17 December for 2nd Class and Royal Mail 48, Friday 18 December for Tracked 48, Saturday 19 December for 1st Class and Royal Mail 24 if your parcels go out on Saturdays (Friday 18 if they do not), and Tuesday 22 December for Special Delivery Guaranteed.

What is the difference between a last posting date and a last order date?

The posting date is the carrier's deadline for handing a parcel over. The last order date is yours, and it has to be earlier, because your order still has to be picked, packed and dispatched. Publishing the carrier's date as your own is the single most common way sellers miss Christmas.

How do I work out my last order date?

Take the carrier's last posting date for the service you use, step back to your own dispatch cut-off on that day, then subtract one working day of margin. With our 2pm weekday cut-off, an order placed at 1pm on the posting date still makes it, but there is nothing left if anything goes wrong, which is what the margin day is for.

Should I stop taking orders after my last order date?

No. Keep selling, and change what you promise. Say clearly that orders after that point are not guaranteed for Christmas, and most customers will still buy. What damages a shop is a promise it cannot keep, not an honest cut-off.

Does Angler's dispatch cut-off change over Christmas?

No. It stays at 2pm Monday to Friday and 1pm on Saturday all the way through, and it is written into clause 10 of our terms rather than into a seasonal notice. Our peak surcharge of 20p per order applies in November and December and is on the published rate card.