If true, Katie Morley has pulled a rabbit out of the hat with this one. In essence, AFPS was contracted out, ie, you gave up additional state pension benefits in return for a better occupational one.
That meant that many folk on the cusp of drawing the new, single tier state pension should receive less than someone who wasn't contracted out because they wouldn't have had time under the new state regime to boost NIC contribution levels to what was required. It's why servicemen and women pay so much more in NIC now, than they did last year.
If Morley is right, and it seems she is probably well researched on this to be safe, the state pension component for those about to draw it may well be smaller than even anticipated. On the surface of it, some may get one bigger though. Staggering. Time for the mess Webley for someone I think, especially as it seems they have been quietly sitting on it for some time.
The separation of NIC from HMRC and the fact that DWP and HMRC just don't work together has created, potentially, a holy mess. It will be interesting to see if MoD still keeps records (post 2012, it wasn't required to do so) and whether the data that it does hold on you, in respect of your Guaranteed Minimum Pension, equates to that which the government assumes you have.
Four million people retiring from April could get the wrong state pension - Telegraph