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Tax on savings income
Savings income (which includes all types of interest) from most deposit takers (banks and building societies) is paid without deduction of tax. This does not apply to interest paid on loans to your company.
For 2020/21 there is a personal savings allowance of £1,000 for basic rate taxpayers and £500 for higher rate taxpayers; within this band the savings income is taxed at 0%. There is an additional £5,000 band of 0% tax known as the savings starting rate, which is available to taxpayers with very low non savings income.
For higher and additional rate taxpayers, there is the question of how much of their savings income has to bear extra tax.
This is best illustrated by examples of individuals who have exactly the same savings income in 2020/21, but different other income (for simplicity, treated as being after application of all allowances). The treatment of dividends is more complicated and they are therefore excluded.
Suppose the savings income is received as follows and everyone has other non-savings income equivalent to the personal allowance of £12,500:
|Building society interest||£4,000|
|Mr Black||Mr Smith||Mr Brown||Mr Green|
|Other taxable income||£1,000||£10,000||£32,500||£145,000|
|Total taxable income||£7,000||£16,000||£38,500||£151,000|
Mr Smith's total taxable income is below the higher-rate threshold of £37,500 so his personal savings allowance is similarly £1,000. The remainder of his savings income will be taxed at 20%. The 10% starting rate does not apply as the taxable non savings income exceeds £5,000.
Mr Brown's total taxable income exceeds the higher-rate threshold by £1,000, so his personal savings allowance is £500. The balance of his savings income is taxed at 20% (on £5,000) and 40% (£500). His tax on his savings income totals £1,200.
Because Mr Green's taxable income exceeds the additional rate threshold, his personal savings allowance is zero. His savings income is therefore charged at 40% (£5,000) and 45% (£1,000), bringing total tax on savings income to £2,450.