Top 1% of earners pay >28% of tax take.
Top 10% pay >33% - I'll fess up that percentile includes me.
It's the mythical squeezed middle in the UK who are substantially undertaxed by international standards for developed countries. Problem is that is probably where the floating voters are, and no politicians like telling the truth if it could keep them out of power.
Borrowing rates are likely to climb, but there will be a nice VAT windfall for HMT from gas, electric and petroleum.
The other problem is that the NHS has become the national religion and anyone suggesting it gets the root and branch overhaul and refocus it requires is treated as a heretic who should be burned at the stake. So it will continue to be the super massive blackhole of public expenditure.
In a few weeks when Vlad has won, as is inevitable without external armed intervention on the Ukrainian side, any impetus for increased expenditure on defence (with internal law enforcement, one of the only two duties of government) will begin to dissipate.