The proportion of those who pay income tax and are pulled into the higher and additional rates is likely to be even greater.
Related topic: Pension
Payments could range from a few pounds to over £100,000.
The Winter Fuel Payment – worth up to £300 - is now set to be means-tested and delivered to those on Pension Credit.
The new errors affect people claiming the new state pension who were already widowed when they retired.
The new framework aims to shift the focus from costs to long term value.
Of the £83 billion taken in flexible payments since inception in 2015, 65% has been taken by those aged under 65.
Chancellor warns '£22bn black hole' will force tough decisions on tax at 30th October Budget, but where could the Treasury look to raise extra revenue?
Market activity for unadvised DC transfers has increased by more than 50% in just four years.
Just £2.2m in arrears has so far been paid out compared with an estimated final bill of £1.15 billion.
Only 4% who were aware of the possibility said they would consider making contributions for someone else or have already done so.