Giving Notice - Civil Procedure Rules (CPR), rule 6.26

“6.26 A document, other than a claim form, served within the United Kingdom in accordance with these Rules or any relevant practice direction is deemed to be served on the day shown in the following table –

Method of service

Deemed date of service

1. First class post (or other service which provides for delivery on the next business day)

The second day after it was posted, left with, delivered to or collected by the relevant service provider provided that day is a business day; or
if not, the next business day after that day.

2. Document exchange

The second day after it was left with, delivered to or collected by the relevant service provider provided that day is a business day; or
if not, the next business day after that day.

3. Delivering the document to or leaving it at a permitted address

If it is delivered to or left at the permitted address on a business day before 4.30p.m., on that day; or
in any other case, on the next business day after that day.

4. Fax

If the transmission of the fax is completed on a business day before 4.30p.m., on that day; or
in any other case, on the next business day after the day on which it was transmitted.

5. Other electronic method

If the e-mail or other electronic transmission is sent on a business day before 4.30p.m., on that day; or
in any other case, on the next business day after the day on which it was sent.

6. Personal service

If the document is served personally before 4.30p.m. on a business day, on that day; or
in any other case, on the next business day after that day.

(Paragraphs 10.1 to 10.7 of Practice Direction 6A contain examples of how the date of deemed service is calculated.)”