The tax that the UK government hopes to collect in tax year is roughly as follows:
Income Tax of £155 Billion
National Insurance of £106 Billion
VAT of £102 Billion
Others Revenue £84 Billion (Radio Spectrum Auctions, Oil Leases, Petroleum Tax, Road Tax, Stamp Duties, Capital Gains Tax etc…)
Excise Duties £48 Billion (Tobacco, Alcohol)
Corporation Tax £45 Billion
Business Rates £26 Billion
Council Tax £26 Billion
∑ (£155 + £106 + £102 + £84 + £48 + £45 + £26 + 26) billion
Equates to about £592 Billion.
Yet this is not enough, spending commitments (Pensions, NHS, Defence, etc etc) of over £700 Billion means, the UK Government need to borrow on the Bond Market via Gilt Auctions, a further £120 Billion a year.