The price of a first-class stamp is to increase by 2p to 62p while a second-class stamp will go up 3p to 53p, Royal Mail has announced.
Also from 31 March, a large letter first-class stamp up to 100g will rise by 3p to 93p and a large letter second-class stamp will increase by 4p to 73p.
http://www.bbc.co.uk/news/uk-26385173
http://www.royalmail.com/prices-2014