Wales Council Tax Revaluation 2028: Will It Go Ahead?

The Wales council tax revaluation 2028 is in an odd position: it is legislated, but not guaranteed. The Local Government Finance (Wales) Act 2024 requires a revaluation of every Welsh home with new bands from April 2028, then fresh revaluations every five years. Yet as of August 2026, the Plaid Cymru government elected in May 2026 is reviewing whether to proceed at all. This guide covers what the law says, what the review means, what happened last time Wales revalued, and what Welsh households should do while the politics plays out.

Is the Welsh council tax revaluation going ahead?

Officially it is still the law, but the new Welsh Government has not committed to it. In June 2026, shortly after Plaid Cymru formed its first government following the Senedd election, Local Government Minister Sian Gwenllian said ministers were "actively looking" at whether to proceed with the planned reforms and stopped short of guaranteeing a revaluation would happen. She said the decision sits with Finance Minister Elin Jones, and a Welsh Government spokesperson would only say ministers remain committed to a "fairer" system and will set out next steps in due course.

The key constraint is that the 2028 timetable sits in primary legislation. As former First Minister Mark Drakeford noted in a Nation.Cymru article on 7 June 2026, "the timetable for implementation of that exercise is already set out in statute, culminating in April 2028". Cancelling or postponing the revaluation would therefore need another vote in the Senedd, not just a ministerial announcement. As of August 2026 no amending legislation has been introduced, no decision has been announced, and gov.wales still describes changes "in 2028".

What does the Local Government Finance (Wales) Act 2024 require?

The Act, passed in 2024, requires regular revaluations of Welsh homes every five years beginning from 2028, so that bands track current values rather than drifting for decades. It followed two rounds of public consultation on a "Fairer Council Tax", after which the then Labour government announced on 15 May 2024 that it would deliver reform on the slower of the consulted timelines, with changes in 2028 rather than 2025.

Two things the Act does not fix are worth knowing. First, no antecedent valuation date has been published: nothing on gov.wales states which date's property values a 2028 revaluation would use, so any specific claim you see is speculation. Second, the Act sets the cycle but leaves the design open, so the number of bands and the charge ratios between them for 2028 remain undecided. The current nine Welsh bands, A to I, and their 2003 thresholds are set out in our Welsh council tax bands guide.

What happened in the last Welsh revaluation?

Wales is the only nation in Britain ever to have revalued its council tax base, and the 2005 exercise is the best evidence of what a revaluation actually does to bills. Every Welsh dwelling was revalued at 1 April 2003 prices, the new bands took effect on 1 April 2005, and a ninth band, I, was added at the top for homes worth over £424,000 at 2003 values.

The lesson from 2005 is that revaluation redistributes rather than raises: far more homes moved up than down because Welsh prices had grown unevenly since 1991, not because councils were handed extra money. Any 2028 exercise would be designed the same way, revenue neutral overall, with the pain and relief unevenly spread by local price growth.

Will my council tax go up in 2028?

Nobody can say for your specific home yet, and until the government confirms the revaluation is proceeding, possibly not at all. What exists is earlier Welsh Government analysis, produced before the 2026 election, suggesting around 30% of Welsh homes, roughly 450,000 properties, could move up a band in a 2028 revaluation, with the rest moving down or staying put. Homes in areas where prices have grown fastest since 2003 would face the greatest upward pressure; slower markets would be more likely to hold or fall.

Treat those figures as an indication of scale, not a prediction for 2028. They depend on a valuation date that has not been set, a band structure that has not been designed, and a political decision that, as of August 2026, has not been made. Transitional arrangements to phase in large increases were also part of the reform discussions, though nothing is confirmed.

Should I challenge my band before the revaluation?

If your current band is wrong, yes, and the review makes the case stronger, not weaker. Welsh bands today rest on 1 April 2003 values, and a banding error from that exercise costs you money every year it stands. If ministers freeze or scrap the 2028 revaluation, a wrong 2003-value band simply stays wrong indefinitely. If the revaluation goes ahead, a successful challenge now still wins you every year of savings in between, plus a refund backdated to when you became liable, money no future revaluation can take away.

1. Check the bands on your street. Bands are public. Enter your postcode into our free checker to see every band around you at once and spot like-for-like homes sitting a band lower.
2. Sanity-check your 2003 value. Sale prices from 1 April 2001 to 31 March 2005, yours or a very similar neighbour's, are the evidence window for Welsh challenges. Our wrong-band check guide walks through both tests.
3. Challenge free if the evidence stacks up. The official challenge through the Valuation Office Agency on gov.uk costs nothing. Our step-by-step guide covers the process, including the honest caveat that the VOA can move bands up as well as down.
4. Ignore anyone selling certainty about 2028. No valuation date exists, no band structure exists, and the government has not confirmed the exercise will happen. Decisions based on your current band are the only ones you can act on today.

To be clear about what we sell: the official challenge is free and always will be. Council Tax Challenger's £9.99 evidence pack does the comparison work for you, applying the VOA's matching rules to the official band data for your postcode and telling you plainly whether your case is worth submitting. We will update this guide when the Welsh Government announces its decision on the 2028 revaluation.