evidence: London had the highest net fiscal surplus per head at £4,030 while Northern Ireland had the highest net fiscal deficit per head at £5,440. [...] London and the South East raised the most revenue in the UK at £167.3 billion and £130.6 billion. These two regions provided 36% of the UK's total revenue. Northern Ireland raised the least amount at £19.8 billion in FYE 2020. This ranking remained unaffected when measuring on either a geographic or population basis. [...] London had the largest change to its next fiscal balance since FYE 2011: increasing its surplus from £2.8 billion to £36.1 billion. This was caused by a larger increase in total revenue in London than in total expenditure. Northern Ireland saw a slight increase in its net fiscal deficit, increasing from £10.1 billion to £10.3 billion.