The co.uk country code domain currently offers a single registration period – 2 years.
Starting from May of next year the registry will be offering the more “standard” registration periods of 1 to 10 years
What does this mean?
It means that you’ll be able to register (and renew) your *.uk domain names for up to 10 years in common with what you can do at present for most other domain extensions including .com and .eu