Royal Mail has published its last posting dates for Christmas 2026: Friday 18 December for 2nd Class and 2nd Class Signed For; Saturday 19 December for Royal Mail Tracked 48; Monday 21 December for 1st Class, 1st Class Signed For and Royal Mail Tracked 24; and Wednesday 23 December for Special Delivery Guaranteed, the latest deadline of all. Parcelforce Worldwide's UK inland dates sit alongside them: Monday 21 December for express48 and express48large, and Tuesday 22 December for express10, expressAM and express24. Royal Mail says the dates are correct at the time of publishing and subject to change, and advises customers to post as early as possible. Christmas Day falls on Friday 25 December 2026, and there are no collections or deliveries on Christmas Day or Boxing Day.
The dates matter more than usual this year, because Royal Mail is heading into Christmas under unusual strain. The company is recruiting 22,000 temporary workers for the festive rush, and it has paused the final stage of its second-class delivery overhaul across 107 hubs until January so staff can focus on the Christmas peak. At the same time, the Communication Workers Union says around 400 staff are resigning each week, up from 330 before the new delivery system was introduced. Royal Mail says it now reaches 95% of UK addresses daily, up from 88%.
The dates in plain terms
| Service | Last recommended posting date |
|---|---|
| 2nd Class, 2nd Class Signed For | Friday 18 December |
| Royal Mail Tracked 48 | Saturday 19 December |
| 1st Class, 1st Class Signed For, Royal Mail Tracked 24 | Monday 21 December |
| Parcelforce express48, express48large | Monday 21 December |
| Parcelforce express10, expressAM, express24 | Tuesday 22 December |
| Special Delivery Guaranteed | Wednesday 23 December |
2nd Class is the slower, cheaper letter service. Tracked 48 and Tracked 24 are the tracked parcel services. Special Delivery Guaranteed is the premium guaranteed service, and it stays open latest — the right choice for anything valuable or irreplaceable left late.
One warning belongs with every date in this list: a last posting date is the last day an item can be expected to arrive before Christmas, not a promise that every single item will make it. Treat each date as a final backstop, and aim to post days ahead of it wherever possible. The postbox matters too: on a deadline day, the last collection time shown on the box is the real deadline, and an item dropped in after that collection counts as the next day's post.
A network under pressure
The rush is real, and so is the pressure behind it. People in the UK sent and received a record 4.6 billion parcels in the year to Ofcom's October 2026 survey, up 8.6% on the year before, and 71% of recipients had a delivery problem in the previous six months. Royal Mail itself has missed Ofcom's delivery targets for six years: its chief executive told an MP in a letter of 2 November that the company will meet them all by April 2027, with first-class next-day delivery up from about 76% to 85% between April and June. In October 2025 Ofcom fined Royal Mail £21 million for failing to meet its first and second class delivery targets in 2024/25 — its third fine since 2023, taking the total to £37 million. First-class quality in 2024/25 was 77%, according to Ofcom's post monitoring report published in December 2025.
Royal Mail's Christmas operation is built to absorb the surge: 22,000 seasonal workers, five extra parcel sort centres, 7,500 hired vans and more than 1,400 extra haulage contractors a day, according to the company's Christmas plan. The union has instructed members to halt further implementation of the new system until the company agrees a plan addressing its failings.
Sort first, pack once
Sort the pile into three jobs. Cards: write them in batches across late November and early December, and get the 2nd Class ones away by Friday 18 December. Ordinary parcels belong with a tracked service, meeting the Tracked 48 or Tracked 24 deadline. Valuable or irreplaceable items should go by Special Delivery Guaranteed, and the Wednesday 23 December deadline should be treated as an emergency exit, not a plan.
Packing is the part that most often decides whether a gift arrives intact. Use a sturdy box rather than a bag or a reused envelope for anything heavier than a card. Cushion the contents on all sides, tape across every opening, and write the address clearly and in full, with the postcode prominent. Put a return address on the reverse, and keep the proof of posting and the tracking reference until the item has arrived.
Abroad and far away
Sending Christmas post outside the UK is a different exercise: post as early as possible, because higher volumes, customs checks and conditions in the destination country can all add delays no UK deadline can control. Royal Mail's published country guides set out delivery aims for each destination. The same applies to the Highlands, the islands and other remote parts of the UK: post early, and choose a tracked service.
If the date has already passed
Missing a last posting date is not the end of Christmas, but it does change the options — and what happens next depends on which service you used. First, check whether a later service is still open: a parcel that missed the 2nd Class deadline may still make the Tracked 24 or Special Delivery Guaranteed deadline, and a guaranteed service is worth its extra cost when the alternative is a gift arriving in January. Second, consider another carrier, whose deadlines may differ, and check them directly rather than assuming they match Royal Mail's.
Third, know what you can and cannot claim. Only Special Delivery Guaranteed carries a guaranteed delivery time. If Royal Mail misses it, the sender can claim a refund of the postage fee — and that claim must be submitted within 14 days of posting, under Royal Mail's retail compensation policy for delays. The other services — 1st Class, 2nd Class, Tracked 24 and Tracked 48 — have no guaranteed delivery window, and Royal Mail does not pay compensation for lateness on them. If you bought the item from a retailer and it arrives late, your route is against the retailer under the Consumer Rights Act 2015, not the carrier.
One thing not to do is to build Christmas plans around a delivery on Christmas Day itself. There will not be one. No collections, no deliveries, on Christmas Day or on Boxing Day. Anything not delivered by Christmas Eve waits until the working days after Christmas. The dates for 2026 are published above, but Royal Mail notes that they can change — so before posting anything important, check its own page once more.