Thousands of grandparents helping out with childcare could lose out when they reach retirement age.
Around 100,000 people are thought be be eligible to claim so-called grandparent's credit - but only around 19,000 have done so, meaning around 80% of people are missing out.
And new claimants can back-date their claim right back to when it was introduced in 2011 - meaning it could add £2340 to your pension pot.
