For further information about the Horizon IT Scandal, please visit our corporate website

Why choose Royal Mail 1st Class Signed for?

  • We aim to deliver the next working day, including Saturdays

  • Signature on delivery – with online confirmation too

  • Includes compensation up to £20

  • Items up to a maximum weight of 20kg

Pricing and size limits


Check your letter's size and weight to find the right price. Make sure the service you use provides enough compensation cover.


Maximum dimensions

Length: 24cm
Width: 16.5cm
Thickness up to and including: 0.5cm
Weight: 100g


Max weight Price
100g £3.05


Includes compensation cover up to £20 

Compensation for valuables, such as money and jewellery, is not available on this service. Use Special Delivery Guaranteed if you're sending valuable items 

Find your local Post Office branch

Ready to send? Find services that suit you in branches nearby with our branch finder

Common questions

  • You can buy and send all Royal Mail Signed for items at any of the 11,500 Post Office branches nationwide. Find one near you with our branch finder.

  • Royal Mail Signed For items need to be posted in a Post Office branch, not a post box, to make sure that the parcel’s tracked from the point it’s dropped off. When you do, you’ll be given a Certificate of Posting. Keep it safe – you’ll need it if you want to claim compensation for loss or damage. 

  • For safety reasons and to comply with national and international regulations, we restrict or prohibit certain items from our network. We may ask you about the contents of your parcel so we can make sure your items are safe to post. 

    You’re responsible for making sure you’re not posting any restricted or prohibited items, so it’s best to make sure you know what’s allowed and what isn’t. You might be surprised to learn that items like batteries and perfumes are subject to some restrictions. 

    View a full list of prohibited and restricted items