Regarding ex gratia payments:
There is a €200,000 lifetime cap on the amount of relief any individual taxpayer can claim in respect of a payment taxable under Section 123 (i.e. ex gratia termination payments). This relief is provided for in Section 201 and Schedule 3 TCA.
Section 201(8) TCA provides that the maximum amount of relief available will be restricted to the lower of the relief otherwise available or €200,000.
Regarding pension lump sums:
The aggregate amount of pension lump sums that can be taken tax free is capped at €200,000 (per Section 790AA TCA). The €200,000 limit is a lifetime cap and all pension lump sums taken since 7 December 2005 are taken into account in calculating how much of the €200,000 cap has been utilised when future pension benefits crystallise.
The upshot of all the above is that the reliefs above are separate and that depending on the particular circumstances and decisions taken, an individual could receive €200,000 tax free via ex gratia payments in a lifetime and €200,000 tax free via pension lump sums in a lifetime.
Achieving full utilisation of the €200,000 tax free relief via ex gratia payments is more likely for those with very high earnings and/or long service.
Coming back to the actual (or hypothetical) example, if no pension lump sum waiver has been signed in connection with any termination deal, then the relief under Section 790AA should be still available (i.e. if there is an entitlement to a lump sum of €150k from an occupational pension, notwithstanding that €100k was received tax free on employment termination(s), the €150k is under the €200k limit in Section 790AA and so the €150k should be tax free also).