It's only deferring it though - lets say you got that money today, and that was all you were going to invest:
£60 in an ISA for 50 years at 10% return = £7,043.
£100 in a Pension for 50 years at 10% return = £11,739. You then choose to take all of that in one go as income, which you pay 40% tax on. You get.... £7,043.
There are benefits in that you'll be making use of personal allowances in the years you're retired, and making use of the lower rates of tax - rather than burning it all at 40% right now. And you often get a tax free lump sum too. It's just not quite as clear cut as saving all that tax.
/me hugs final salary civil service pension hahahahahaha

I did say most of that!So it's quite possible you could pay very little tax on your pension...

Well, Im part of the manage your own pension mindset. Mainly due to my parents who were with Equitable Life, and now they have had £20,000 wiped off by smoothing...
Its clear to see who has experienced the wrong end of the stick and who hasnt.
I wouldn't be surprised if you lost that FSP over the coming few years...
It's only deferring it though - lets say you got that money today, and that was all you were going to invest:
£60 in an ISA for 50 years at 10% return = £7,043.
£100 in a Pension for 50 years at 10% return = £11,739. You then choose to take all of that in one go as income, which you pay 40% tax on. You get.... £7,043.
There are benefits in that you'll be making use of personal allowances in the years you're retired, and making use of the lower rates of tax - rather than burning it all at 40% right now. And you often get a tax free lump sum too. It's just not quite as clear cut as saving all that tax.