Pension Tax relief - how far back can I claim?

[Trikster]

Hi - all my fault, so feel free to lay into me if the PH massive want to, but need some advice

Just been reviewing my pension docs for my new job - noticed that they only claim basic relief on the contributions and I have to claim the rest.

Now for many years I was on a final salary jaunt so everything was sorted for me, but for the job in between this one and that one I may wasn't but hadn't realised I might not have been getting full relief (I know, I know) - going to be going through all the paperwork tomorrow but if that was the case how far back can I claim the relief?

[Trikster]

doh - similar post a few down... should look harder