Christmas 2026 Posting Deadlines: A Guide for Online Sellers

Quick answer: Royal Mail usually publishes its official Christmas last posting dates in the autumn. Based on Christmas 2025, expect the last recommended dates to fall around 17 December for 2nd Class, 20 December for 1st Class, 21 December for Tracked 24 and 23 December for Special Delivery Guaranteed. Online sellers should set their own "order by" date one to two days earlier than the carrier's deadline, and show it clearly on every listing.

Every year it happens to someone. A customer orders a present on 21 December. The seller posts it 2nd Class on the 22nd. It arrives on the 28th. The customer is upset, leaves a one-star review, and opens an "item not received" case on Christmas Eve. Nobody did anything wrong on purpose. There just wasn't a clear deadline.

Tekovex manages eBay, Etsy, Amazon, TikTok Shop and Shopify stores for UK and US sellers, and our client stores have passed £1 million in UK sales. December delivery is where good stores protect their reviews, and their seller ratings, for the whole next year.

Royal Mail last posting dates: what to expect

These are Royal Mail's official recommended last posting dates for Christmas 2025, from royalmail.com. Use them as a guide until the 2026 dates are confirmed:

• 2nd Class and 2nd Class Signed For: Wednesday 17 December 2025
• Royal Mail Tracked 48: Friday 19 December 2025
• 1st Class and 1st Class Signed For: Saturday 20 December 2025
• Royal Mail Tracked 24: Sunday 21 December 2025
• Special Delivery Guaranteed: Tuesday 23 December 2025

Parcelforce (2025): express48 by Friday 19 December; express24, expressPM and express10 by Monday 22 December.

Christmas Day 2026 falls on a Friday, so the days of the week will shift. Always check the official 2026 dates on your carrier's website before announcing them to customers. Evri, DPD and Yodel publish their own dates too, and searches for Evri and Yodel Christmas dates became breakout searches last December.

How to set your own "order by" dates

The carrier's deadline is the last day to post, not the last day a customer can order. Work backwards:

• Take the carrier's last posting date for the service you use.
• Subtract your dispatch time (for example, one working day).
• Subtract one extra day as a buffer for busy days.

Example: if the 2nd Class deadline is 17 December and you dispatch the next working day, set your 2nd Class "order by" date to 15 December.

Where to show your deadline

• A banner across your website or shop page.
• In every product title or the first line of the description during December.
• In order confirmation emails and automatic messages.
• On your social media and email list one week before, and again two days before.

Offer faster options at a fair price

After your 2nd Class deadline passes, many shoppers will happily pay for speed. Offer a paid upgrade to 1st Class, Tracked 24 or Special Delivery, and update the expected date clearly. This keeps sales going for an extra few days.

What to do after the last posting date

• Switch to gift cards and digital products.
• Offer "print at home" gift certificates.
• Promote local collection or local delivery if you have it.
• Pre-sell for Boxing Day and January.

Protect your seller ratings in December

• Don't shorten your dispatch time just to look faster. Late dispatch hurts your seller performance on eBay and other marketplaces.
• Upload tracking the same day you post.
• Reply to "will it arrive in time?" messages honestly.
• If a delay is the carrier's fault, show the tracking and help the buyer quickly.

Frequently asked questions

What is the last posting date for Christmas 2026?

Check Royal Mail's website for the confirmed 2026 dates. In 2025, the last recommended dates were 17 December for 2nd Class, 20 December for 1st Class and 23 December for Special Delivery Guaranteed.

What is the last day to send a parcel for Christmas?

In 2025, Special Delivery Guaranteed (23 December) was Royal Mail's latest option for UK delivery before Christmas.

Does Royal Mail deliver on Sundays at Christmas?

Some tracked services run at weekends in the run-up to Christmas. In 2025, the last date for Tracked 24 was a Sunday. Check Royal Mail's service updates for 2026.

What should online sellers set as their Christmas order deadline?

One to two days before the carrier's last posting date for the service you use, allowing for your dispatch time.

What are the international Christmas posting dates?

They're much earlier, often late November to mid-December depending on the country. Check Royal Mail's international dates.

Need help running December orders?

Tekovex handles order processing, dispatch and customer messages for stores through the Christmas rush. See our ecommerce management service or book a free consultation. Also read our Q4 ecommerce checklist.