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Income Tax Tool

From 6 April 2019, income tax rates paid on non-savings, non-dividend (‘NSND’) income by Welsh taxpayers fell by 10p in the pound and were replaced by the Welsh Rates of Income Tax.

Keeping tax rates paid by Welsh taxpayers unchanged by setting a 10p rate in each band is forecasted to raise over £2 billion for the Welsh Government in 2020-21. Based on data and forecasts in the UK Spring Statement 2019.

This model has been produced in partnership with researchers from the Wales Fiscal Analysis team at Cardiff University’s Wales Governance Centre, using modelling from their report Trends in the Welsh Income Tax base: an update, April 2019.

Adjust the sliders to vary the income tax rates and behavioural changes and see the effects on the Welsh Government's income tax revenue. Enter your annual taxable income to see how much you pay the Welsh and UK Governments and where you lie in the Welsh income distribution.

Welsh Government Revenue Calculator

Income tax band

Basic rate

Rate: 20%

Threshold: £12,501 to £50,000 per year

pence per £1 received by the Welsh Government
in behavioural response*

Higher rate

Rate: 40%

Threshold: £50,001 to £150,000 per year

pence per £1 received by the Welsh Government
in behavioural response*

Additional rate

Rate: 45%

Threshold: £150,001+ per year

pence per £1 received by the Welsh Government
in behavioural response*

Welsh Government Revenue 2020-21

Total revenue in your model (£m) Difference between your model and current figures (£m)
Basic rate: 0
Higher rate: 0
Additional rate: 0
Total: 0

My Taxable Income

(excluding allowances and reliefs)
Estimated amount you would pay to the UK Government (£) Estimated amount you would pay to the Welsh Government (£) Where do I fall in the Welsh taxpayer income distribution?
0 (0%) 0 (0%)

Note ‘My Taxable Income’ reflects 2019-20 allowances in the UK Autumn Budget 2018.

*Were the Welsh Government to change income tax rates in Wales, there would likely be some behavioural response from Welsh taxpayers. Possible behavioural responses include greater use of tax planning, tax avoidance or evasion, individuals seeking different jobs or changing the number of hours worked, and/or migration into and out of Wales. The extent and effects of behavioural change to be expected is highly uncertain, though it must be considered when setting income tax policy. Migration has not been included in the behavioural response analysis.

  • 0 = no behavioural response
  • 0.1 = central behavioural response
  • 0.2 = high behavioural response

See Welsh Tax Base Report, July 2018 for methodology.

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