[jwmcq]

>What's the solution here to get more in taxes?

Easy - increase corporation tax. The main rate has been literally halved over the last 30 years.

[JonChesterfield]

The thing with that is corporations can defer profits until the rate falls again, while in the mean time you encourage people to open new premises elsewhere. So the take is not remotely linear in the percentage.

[jimnotgym]

Tax Capital Gains at the same rate as income?

[midasuni]

Not to mention income from retirees. A pensioner on £35k income pays far less in tax than a worker on £35k income.