70,000 must act to get state pension boost

Those reaching state ­pension age between April 2008 and April 2011, who don't get a full basic state pension, could get more and have it backdated.

The offer allows this group to buy back up to six years of voluntary ­contributions as far back as 1975.

Usually people are allowed to buy back only the previous six years.

The offer will end on April 5 this year. To be ­eligible, you must also have built up at least 20 qualifying years.

The full basic state ­pension is worth £97.65 and will rise to £102.15 from April 6.

To buy a missing year costs £625, but will boost your pension by £169 a year.

For advice, call 0845 604 2931.