Hi SlurrySlump
Has she any other pension benefits from any other sourse? as the quantum of all pension funds after tax free lump sum must be less than €20,000 in the case of a private pension or €330 before tax free cash in the case of a DB/DC scheme.
The trustee's of the scheme are not obliged to operate the trivial pension rule if they do not wish.
I assume that she was part of the Defined Benefit Scheme. The Defined Benefit commutation factor used varies from scheme to scheme. I think the CS/PS scheme uses a factor of 9:1 likewise the private sector scheme that I am a member of uses the same.
So maybe perhaps the UB CF is similar so if you were to base your wifes annual pension on this CF she would receive a lumpsum before tax @ 10% of €1125.
Hope this helps your understanding,
Baracuda.