The headline changes to tax rates and allowances are:
Corporation tax
The main rate of corporation tax has been reduced to 21 per cent from 1 April 2014, and to 20 per cent from 1 April 2015 - the joint lowest in the G20. This will bring the rate into line with the small companies rate and lead to a single rate of corporation tax.
Personal allowance
There has been an increase in the personal allowance to £9,440 from 6 April 2013 with a firm commitment to increase this to £10,000 from 6 April 2014.
Other key changes to personal tax include the following:
Higher rate threshold
The higher rate threshold - ie, the point at which tax becomes payable at the higher rate - is reduced from £34,370 of taxable income for 2012/13 to £32,010 for 2013/14. The threshold reduction will bring more people into higher rate tax and is to compensate for taxpayers at the lower end of the income scale being taken out of income tax altogether by the increase in the personal allowance.
Additional rate tax
The additional rate of tax for those with annual taxable incomes greater than £150,000 has been reduced from 50 per cent to 45 per cent with effect from 6 April 2013. For a wealthy taxpayer with an income of £1m a year, this would equate to an annual tax saving of almost £50,000.