Higher taxes on the wealthy is people earning over £200,000 pa, if I recall correctly, and mostly involves closing exploitable loopholes via the simplification of the regs... Which hopefully wouldn't do you out of a job...

want to scream at the mention of a GAAR - everyone in the profession hates the idea

So join up, and put forward an amendment motion at Conference. Any member can put forward policy motions in the party, and spring conference is in Hairy Git, so you could come and visit nannyo with us ;)