From Saturday 5 June, the price of weekday editions of the Guardian will increase to £2.50, while the price of Monday to Friday editions of the Sun will rise from 60p to 65p.
Meanwhile, the Saturday Guardian and Sunday Observer will go up to £3.50, with the Saturday edition of the Sun rising from 85p to 95p
GNM and News UK has pledged to include pro rata terms for newsagents as part of the announced price rises.
Profits per copy to newsagents will increase to 14.5p for weekday editions and to 20.3p on the Saturday edition.
NFRN national president, Stuart Reddish, said: “This is great news. When publishers put the prices of their titles up, there is always a danger that retailers will suffer because of reduced profits.
“But it is pleasing to see that GNM and News UK recognise the efforts of independent retailers to keep the news trade going during what has been an unprecedented and extremely difficult year for our industry.”