Below are the posting and delivery deadlines for 2021:

• Royal Mail Bulk Mail Economy – Friday, December 17
• 2nd Class – Saturday, December 18
• 2nd Class Signed For – Saturday, December 18
• Royal Mail 48 – Saturday, December 18
• 1st Class – Tuesday, December 21
• 1st Class Signed For – Tuesday, December 21
• Royal Mail 24 – Tuesday, December 21
• Royal Mail Tracked 48 – Tuesday, December 21
• Royal Mail Tracked 24 – Wednesday, December 22
• Special Delivery Guaranteed – Thursday, December 23

For further information, including overseas deadlines, please see the Royal Mail website