Stat redundancy is always tax free no matter how many times you
are made redundant.
Did you use the 10,000 pension tax break at your last redundancy
if not use this now.
Top slicing is also an option where the revenue take a look at your
last 3 years tax and see if there are any allowances they can roll
together to allow you more tax off
apart from the above the rest of your redundancy will be taxed as normal !
If you claimed for the "Increased Exemption" the last time, then you've an issue. Also, if it's the same company (or they're associated companies) you may also have an issue. Not in relation to SR, just anything above and beyond that.