Changes to income tax for 2019/20

The new tax year brings changes to income tax bands and allowances.
The personal allowance is £11,850 for 2018/19 and increases to £12,500 for 2019/20. There is a reduction in the personal allowance for those with 'adjusted net income' over £100,000. The reduction is £1 for every £2 of income above £100,000. So for 2018/19 there is no personal allowance where adjusted net income exceeds £123,700. For 2019/20 there is no personal allowance available where adjusted net income exceeds £125,000.

The marriage allowance permits certain couples, where neither pays tax at more than the basic rate, to transfer 10% of their personal allowance to their spouse or civil partner.
The basic rate of tax is 20%. In 2018/19 the band of income taxable at this rate is £34,500 so that the threshold at which the 40% band applies is £46,350 for those who are entitled to the full personal allowance. In 2019/20 the basic rate band increases to £37,500 so that the threshold at which the 40% band applies is £50,000 for those who are entitled to the full personal allowance.
Individuals pay tax at 45% on their income over £150,000.
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Scottish residents

The tax on income (other than savings and dividend income) is different for taxpayers who are resident in Scotland to taxpayers resident elsewhere in the UK. The Scottish income tax rates and bands apply to income such as employment income, self-employed trade profits and property income.
In 2018/19 and 2019/20 there are five income tax rates which range between 19% and 46%. Scottish taxpayers are entitled to the same personal allowance as individuals in the rest of the UK. The two higher rates are 41% and 46% rather than the 40% and 45% rates that apply to such income for other UK residents. For both 2018/19 and 2019/20, the threshold at which the 41% band applies is £43,430 for those who are entitled to the full personal allowance.
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Welsh residents

From April 2019, the Welsh Government has the right to vary the rates of income tax payable by Welsh taxpayers. The UK government has reduced each of the three rates of income tax paid by Welsh taxpayers by 10 pence. The Welsh Government has set the Welsh rate of income tax at 10 pence which will be added to the reduced rates. This means the tax payable by Welsh taxpayers continues to be the same as that payable by English and Northern Irish taxpayers.
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Internet links: GOV.UK  GOV.SCOT income tax  GOV.WALES income tax