# Devolution vs Westminster Control: Where Power Actually Sits in 2026

> Scotland, Wales, Northern Ireland and England's metro mayors each hold different slices of power. Here is a plain map of what is devolved, what remains reserved to Westminster, and why the boundary keeps shifting.

*Section: Politics — By Marcus Obi (Personal Finance & Everyday Money Writer) — Published June 25, 2026 — 5 min read*

Canonical URL: https://dailyjunction.org/politics/devolution-vs-westminster-control-2026
Tags: devolution, westminster, scottish parliament, welsh senedd, metro mayors

## Key takeaways

- Scotland and Wales have the most extensive devolved powers, covering health, education, most of justice (Scotland) and increasing tax-varying powers
- Northern Ireland's devolved settlement is distinct again, built on the Good Friday Agreement power-sharing model
- English devolution operates differently — through directly elected metro mayors with delegated, not sovereign, powers over transport, housing and skills budgets
- Foreign policy, defence, immigration and most welfare policy remain reserved to Westminster across all four nations

## The basic map of power

The UK is not a federal state in the way the US or Germany are — there is no single, symmetrical division of powers that applies equally across the country. Instead, each devolved nation has its own settlement, negotiated and legislated separately, which is why questions like "who controls the NHS" have different answers depending on which part of the UK you mean. Health, education, most transport, housing, and local government are devolved to the Scottish Parliament, Welsh Senedd and Northern Ireland Assembly. Defence, foreign affairs, immigration, the constitution, and most welfare and pensions policy remain reserved to the UK Parliament at Westminster, applying UK-wide.

## Scotland: the deepest devolution

The Scottish Parliament has the widest range of devolved powers of any UK nation, including significant tax-varying authority — Scotland sets its own income tax bands and rates, which have diverged from the rest of the UK, generally taxing higher earners more. Scotland also controls its own justice system entirely, including courts, policing and most of criminal law, reflecting the fact that Scots law was always a distinct legal system even before devolution began in 1999.

## Wales and Northern Ireland: different shapes again

The Welsh Senedd has grown its powers significantly since the original 1999 settlement, gaining primary legislative powers in 2011 and some tax-varying powers since 2018, though it still has less fiscal autonomy than Scotland. Northern Ireland's devolved government is structurally different from both: it operates on a mandatory power-sharing basis between unionist and nationalist parties under the Good Friday Agreement, meaning the Executive can only function when both main political traditions agree to nominate ministers — a design that has led to repeated periods where the Assembly has been suspended entirely.

## English devolution: delegated, not sovereign

England has no devolved parliament of its own, but since 2017 a growing number of city regions have gained directly elected mayors — covering areas like Greater Manchester, the West Midlands, West Yorkshire and the North East — who hold delegated authority over specific budgets and policy areas, typically transport, adult skills, housing and some economic development funding. Crucially, this is not equivalent to Scottish or Welsh devolution: metro mayors operate within powers granted by Westminster through individual devolution deals, which vary from mayor to mayor and can in principle be renegotiated or withdrawn, rather than a fixed constitutional settlement.

## Why the boundary keeps shifting

Devolution in the UK has never been a single settled event — each nation's powers have expanded incrementally through further legislation, often following a referendum, a commission report, or political pressure after a contested policy dispute. This piecemeal approach is a deliberate, if sometimes criticised, feature of the British constitutional tradition, which tends to evolve through specific negotiated deals rather than a single codified document. The practical effect is that anyone trying to understand "who is in charge" of a given policy area in the UK usually needs to ask which nation or region they mean, not just which government is in office nationally.

## Why the asymmetry itself is a recurring source of debate

The uneven nature of UK devolution — Scotland with the deepest powers, Wales with a somewhat narrower settlement, Northern Ireland structured entirely differently again, and England with no devolved parliament of its own at all — is frequently described by constitutional commentators as the "West Lothian question" in one of its modern forms: the anomaly whereby MPs representing Scottish or Welsh constituencies can vote at Westminster on matters that affect only England, since those same policy areas are devolved in their own constituencies and therefore outside their MPs' ordinary legislative concern, while English MPs have no equivalent devolved chamber of their own to raise the reverse concern.

Various procedural fixes have been attempted over the years, including "English Votes for English Laws" (EVEL), a Commons procedure introduced in 2015 that gave English MPs an additional veto stage over legislation certified as England-only, before it was scrapped again in 2021 amid criticism that it had added complexity without resolving the underlying asymmetry it was designed to address. The English devolution that has emerged instead — through city-region mayors rather than a national English parliament — reflects a deliberate policy choice to address regional disparities within England through more localised, delegated structures rather than attempting to create a fifth, England-wide devolved body that would sit awkwardly alongside a UK Parliament that already, in practice, functions as England's primary legislature for most devolved matters.

The funding formula underlying devolved spending is a further, closely related source of ongoing dispute. The Barnett formula, which determines how changes in spending on devolved matters in England translate into corresponding funding adjustments for Scotland, Wales and Northern Ireland, has been criticised from multiple directions simultaneously: some argue it no longer reflects each nation's genuine relative need, since it was originally designed as a temporary mechanism in the late 1970s and has persisted largely unchanged despite significant demographic and economic shifts since then, while others defend it as a reasonably stable, broadly predictable mechanism that avoids the more overtly political horse-trading a needs-based formula negotiated afresh each year might invite. Reforming it remains politically difficult precisely because any change creates identifiable winners and losers among the nations it applies to. Various independent bodies, including the IFS, have periodically proposed needs-based alternatives, but no UK government has yet judged the political cost of a formal reform worth the funding certainty a new formula might provide, leaving the Barnett formula as one of the more durable, if consistently criticised, fixtures of the UK's fiscal architecture.

## Frequently asked questions

### Does England have its own devolved parliament like Scotland?

No. England is governed directly by the UK Parliament and government at Westminster, with power delegated only to individual city-region mayors in specific areas, not a single devolved English parliament with law-making powers.

### Can Westminster overrule a devolved parliament?

Legally, yes — the UK Parliament retains ultimate sovereignty and could in theory legislate on devolved matters or amend the devolution settlements themselves, but by convention (the Sewel Convention) it does not normally legislate on devolved matters without the relevant devolved parliament's consent.

## Sources

- [Institute for Government — Devolution explainers](https://www.instituteforgovernment.org.uk/explainer/devolution)
- [UK Parliament — Devolved Parliaments and Assemblies](https://www.parliament.uk/site-information/glossary/devolved-parliaments-and-assemblies/)

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Daily Junction — https://dailyjunction.org/politics/devolution-vs-westminster-control-2026
