Alistair FinchWales 2026 Senedd Election: What the New Proportional System Means for Welsh Voters and Their Legal Rights
The 2026 Senedd election, scheduled for 7 May 2026, is unlike any Welsh parliamentary vote in history. Wales has expanded its parliament from 60 to 96 seats and replaced its previous hybrid voting system with full proportional representation — a change that fundamentally alters how votes translate into seats. With Plaid Cymru and Reform UK locked in a knife-edge race according to the latest YouGov MRP model (37 projected seats for Reform UK versus 36 for Plaid), and Labour facing what analysts describe as its worst Welsh result in a century, the political stakes could not be higher. But beyond the political drama, there is a practical question that every Welsh voter should be able to answer: how does the new system work, and what are your rights as a voter?
How the New Proportional System Works
Under the previous system, the Senedd used a mixture of constituency seats (first past the post) and regional list seats (proportional representation). The reformed Senedd uses a single transferable vote (STV) system with multi-member constituencies, meaning each constituency elects multiple Members of the Senedd (MS) and voters can rank candidates in order of preference.
In practice, this means your vote in 2026 carries significantly more direct weight than in previous Senedd elections. Under first-past-the-post systems, votes cast for parties that do not win in a constituency are effectively discarded. Under STV, preferences transfer, meaning a vote for a candidate who has already been elected (or who cannot win) moves to your next-ranked choice. For voters in areas where the result was previously a foregone conclusion, this is a material change.
Your Legal Rights as a Welsh Voter
The right to a secret ballot. This is a foundational right under UK electoral law, protected by the Ballot Act 1872. No candidate, party official, employer, or family member has any legal right to know how you voted.
The right to reasonable adjustments. Under the Equality Act 2010, returning officers must make reasonable adjustments to ensure disabled voters can participate. This includes the right to vote by post, the right to use a tactile voting device, and the right to bring a companion to assist you in the polling station.
The right to vote by proxy. If you cannot attend your polling station, you can appoint someone you trust to vote on your behalf. Applications for proxy voting must be submitted to your local authority. The deadline for emergency proxy applications is typically 5pm on the day before polling day.
The right to challenge the result. Under the Representation of the People Act 1983, any candidate, election agent, or registered voter can petition to challenge an election result in court if they have grounds to believe it was affected by corrupt or illegal practices, or by administrative error that may have changed the result.
What Landlords, Employers and Other Private Parties Cannot Do
Electoral law explicitly prohibits certain forms of pressure on voters. An employer who attempts to instruct employees how to vote, or who threatens adverse employment consequences based on voting intentions, may be committing an offence under the Representation of the People Act 1983. Similarly, a landlord who attempts to pressure tenants about their vote is acting unlawfully.
If you have experienced any attempt to influence your vote through employment pressure, housing threats, or financial inducements, this should be reported to your local authority electoral services team or to the police. A solicitor experienced in electoral law can advise on whether you have grounds for a formal complaint.
The Stakes: What Changes When Government Changes
Regardless of who wins on 7 May, the election result will directly affect devolved policy areas that touch everyday life in Wales: health (the NHS in Wales is run separately from England), education (including curriculum decisions and school funding), housing policy (including rent controls and social housing), and economic development.
The most significant near-term legal implications for Welsh residents are likely to arise in housing and employment — two areas where the Senedd has significant devolved powers and where the three leading parties hold distinctly different policy positions. For anyone with pending planning applications, ongoing tenancy disputes, or employment contracts with Welsh public sector organisations, the political outcome on 7 May is directly relevant to your legal position.
Practical Steps Before 7 May
Check you are registered. The deadline to register to vote in the 2026 Senedd election is typically 12 days before polling day. You can check and update your registration at gov.wales/register-to-vote.
Understand the ballot. The ballot paper for this election will look different from previous Senedd elections. The STV system requires you to rank candidates — writing 1, 2, 3 beside your preferences. Spoiling a ballot by writing an X may still be valid if the intention is clear, but ranking is strongly recommended.
Consider a postal vote. If there is any chance you will not be able to attend on 7 May, apply for a postal vote now. Applications close several weeks before polling day.
For detailed, current information on your voting rights and electoral procedures in Wales, visit the Electoral Commission.
Disclaimer: This article is for informational purposes only and does not constitute legal advice. Consult a qualified solicitor for advice specific to your circumstances.
