The new Welsh Government has published a Budget that is supplementary to the one agreed in January 2026 under the previous administration. This is important for individuals, though professionals will be looking at the implications for payroll and tax.
On 23 June 2026, Elin Jones MS, Cabinet Secretary for Finance under the Plaid Cymru-led Welsh Government in Cardiff Bay outlined her first Budget – a Budget supplementary to the one agreed in January 2026 ahead of the start of the tax year. This reflects the new administration’s changed priorities.
For individuals
The Supplementary Budget focuses on Plaid Cymru’s commitments ahead of the Senedd elections to reduce waiting lists in NHS Wales and move forward their plans for a more ‘generous childcare offer’. It also funds and seeks to promote apprenticeship participation in Wales.
For Professionals
There is no way that Income Tax could have been amended part-way through a tax year. This has to be agreed before the start of the tax year and remains in place until the new Welsh Rate Resolution for 2027/28. This is a shared tax, collected by HMRC.
Likewise, there are no changes to the devolved taxes collected by the Welsh Revenue Authority (WRA).
For Bookkeepers
As a minority administration, Plaid Cymru will be reliant on support from other political parties when the Supplementarty Budget motion is put to the vote in the Senedd on 14 July 2026.
Perhaps, this will be the most interesting thing for professionals and will provide an indication of the level of support they can expect to receive when revenue-generating tax measures are decided for tax year 2027/28.