Some 9.7 million people on the Basic State Pension could see weekly payments rise by up to £40 each month from next April, under the Triple Lock policy.
Both the Conservatives and Labour Party have pledged to maintain the Triple Lock for the duration of the next parliament, if they win the General Election on July 4.
Under the Triple Lock, the New and Basic State Pensions increase each April in-line with whichever is the highest of the average annual earnings growth from May to July, the Consumer Price Index (CPI) in the year to September or 2.5 per cent.
The latest figures from the Office for National Statistics (ONS) show that the CPI inflation rate dropped from 2.3 per cent in April to 2.0 per cent in May.
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