From 6 April 2019, the Welsh Government (like the Scottish Government) will be able to set and vary the rate of Income Tax paid by Taxpayers who live in Wales.
As in Scotland the system will be administered by HMRC. Taxpayers resident in Wales who are employed or in receipt of a taxable pension will have the letter “C” as a pre-fix to their tax code to ensure the correct amount of tax is deducted under PAYE.