The next UK general election is expected in autumn 2029. Whether you have voted in every election since 1979 or are preparing to vote for the first time, this guide explains exactly how the process works: from registering to vote, to the ballot box, to results night, to the formation of a new government. We also explain how the polls you see on this site relate to what actually happens on election day.
Registering to Vote
To vote in a UK general election, you must be registered on the electoral register. Registration is handled by your local council. You can register online at gov.uk/register-to-vote; the process takes about five minutes. You will need your National Insurance number. The deadline for registration is typically 12 working days before polling day — for the next election, expected in autumn 2029, this deadline will be announced when the election is called.
Eligibility to vote in UK general elections requires that you are: a British citizen, an Irish citizen, or a qualifying Commonwealth citizen; aged 18 or over on polling day; and not legally barred from voting (for example, certain convicted prisoners). EU citizens who arrived after Brexit are not entitled to vote in UK general elections, though many can vote in local elections. There is ongoing political debate about extending voting rights, but the rules for the 2029 election are expected to follow the 2024 rules.
Overseas British citizens can register as overseas voters and request a postal or proxy vote. The right to vote as an overseas British citizen was extended indefinitely in 2023, removing the previous 15-year limit. If you are a British citizen living abroad and want to vote in 2029, registering well in advance of the election is advisable as overseas registration processing takes longer than domestic registration.
Polling Day: How the Vote Works
Polling stations open at 7am and close at 10pm on election day. Elections are always held on Thursdays, a convention with historical roots that successive governments have chosen to maintain. You go to your designated polling station — specified in the polling card sent to your address before the election — and present photo ID at the door. The Voter ID requirement was introduced in England at the 2023 local elections and applied at the 2024 general election. Accepted forms of ID include a passport, driving licence, bus pass, and certain other documents.
Inside the polling station, a presiding officer gives you a paper ballot. The ballot lists all candidates standing in your constituency, with their names and party affiliations. You mark an X next to the single candidate you want to vote for, fold the ballot, and place it in a sealed ballot box. That is the entire process. You are choosing a constituency MP under the first-past-the-post system — you do not vote directly for a Prime Minister or for a party nationally.
You can also vote by post if you apply in advance, or by proxy (authorising someone else to vote on your behalf). Postal vote applications must be submitted several weeks before polling day. The postal vote process is straightforward but requires planning ahead. In 2024, approximately 8.4 million people voted by post, accounting for roughly 22% of all votes cast.
The Counting Process
As soon as polls close at 10pm, the sealed ballot boxes from each polling station are transported to a central count venue — usually a sports hall, conference centre, or civic building in each constituency. Counting teams — electoral staff and party scrutineers — open the boxes and begin counting. The process involves first verifying that the number of ballots matches the number of voters checked off at polling stations, then sorting ballots by candidate, then counting each candidate’s pile.
The speed of counting varies significantly by constituency. Urban constituencies in major cities, with compact geographies and large experienced counting teams, frequently declare by midnight or 1am. Rural and island constituencies, with dispersed polling stations and longer transport times for ballot boxes, may not declare until the following morning. The constituency of Na h-Eileanan an Iar (Western Isles) typically declares last among Scottish seats.
The returning officer for each constituency announces the result publicly, reading out the vote totals for each candidate and declaring the winner. In close races, recounts can be requested by candidates; these can delay declarations by several hours. The media infrastructure covering these declarations — broadcast studios, exit polls, swingometer graphics — is a distinctive feature of British election night culture.
The Exit Poll and What It Means
At exactly 10pm, when polls close, the BBC, ITV, and Sky News jointly publish an exit poll. This is based on surveying voters as they leave polling stations throughout the day across a sample of constituencies. The exit poll is an estimate of the overall national result — it provides projected seat numbers for each party, not just vote shares.
The exit poll has been strikingly accurate in recent UK elections. In 2024, it correctly projected a large Labour majority within the margin of error. In 2017, it correctly predicted a hung parliament when most pre-election polls had suggested a large Conservative majority. The exit poll is distinct from the pre-election polls tracked on this site — it is conducted on election day and is a far more reliable predictor of the actual result.
What Happens After the Count: Forming a Government
If a single party wins 326 or more seats, it has a majority in the 650-seat House of Commons and its leader will be invited to form a government. The leader visits Buckingham Palace to be invited by the King to become Prime Minister, then moves to 10 Downing Street. Cabinet appointments follow over the next day or two, and Parliament meets within a week or two for the State Opening and King’s Speech, which sets out the new government’s programme.
If no single party wins 326 seats — a hung parliament, which is currently projected as the most likely 2029 outcome based on current MRP models — the process is more complex. The incumbent Prime Minister has the first right to attempt to form a government, even if their party is not the largest. If they can secure a working arrangement with other parties through a formal coalition or informal agreement, they remain Prime Minister. If they cannot, they resign and the leader of the largest party attempts to form a government.
The UK has no fixed constitutional timeline for government formation in a hung parliament. The 2010 coalition took five days to negotiate. If 2029 produces a complex multi-party situation, negotiations could take longer. During this “caretaker” period, the outgoing government continues to run the country in an acting capacity, dealing only with routine business.
How the Polls Relate to the Election Result
The voting intention polls tracked on this site measure the current state of public opinion, not what will happen at the 2029 election. Three years of political change, economic developments, campaign effects, and voter decisions lie between now and polling day. Mid-term polls are an imperfect guide to election outcomes, as discussed in our polling methodology article.
What the polls do provide is a current snapshot of political sentiment that is valuable for understanding political dynamics even if not for precise election prediction. The Reform UK polling surge to 28% tells us something real and important about how a large section of the British public feels. The Green surge to 15% tells us something real and important about how progressive younger voters are aligning. Understanding these dynamics is the purpose of this site, and the election in 2029 will be where they are ultimately tested.