The last UK general election was held on 4 July 2024, when Labour won a landslide majority under Keir Starmer. Under current law, the next election must be called no later than January 2030. In practice, the expectation is an autumn 2029 election. Here is everything you need to know about the timeline, the rules, and what the polls currently suggest.
The Legal Framework: How UK Elections Are Called
The Dissolution and Calling of Parliament Act 2022 — which repealed the Fixed-term Parliaments Act 2011 — restored the Prime Minister’s prerogative power to advise the monarch to dissolve Parliament and call an election. Under the 2022 Act, Parliament automatically dissolves five years after its first meeting, and elections must be held within 25 working days of dissolution.
The current Parliament first met on 9 July 2024. Five years later is 9 July 2029. Adding the 25 working days and accounting for the requirement that elections must be held on a Thursday, the absolute latest date for the next general election is around 23 January 2030. In practice, elections are rarely held in January, and autumn 2029 — most likely October or November — is the expected date.
The Prime Minister retains the power to call an early election at any time by advising King Charles to dissolve Parliament. This is a significant power but one that is typically exercised only when the incumbent government believes conditions are favourable. With Labour currently polling at 18%, calling an early election would be extraordinary — no Prime Minister has voluntarily called an election when this far behind in the polls.
What Could Trigger an Early Election?
Despite Labour’s low polling, several scenarios could trigger an election before 2029. A government defeat on a confidence vote in the Commons — though with a majority of over 170 seats, Labour’s parliamentary position is secure for now. A dramatic improvement in Labour’s polling — if Labour recovered to 35-40% for a sustained period, an early election opportunism is conceivable, as Thatcher demonstrated in 1983 and Blair in 2001.
A significant economic or political crisis that fundamentally changed the political environment could also force an early election, either through a dramatic collapse in government authority or through an opportunity-driven decision by Starmer. But absent these scenarios, the expectation is a full five-year parliament ending in mid-to-late 2029.
The Current Polling Picture
The May 2026 polling average shows: Reform UK 28%, Conservatives 19%, Labour 18%, Green Party 15%, Liberal Democrats 13%, SNP 3%, others 4%. This is a dramatically fragmented picture: the leading party has just 28% of the vote, and there is no majority even for a two-party combination of Reform and Conservative (47% combined, but severely punished by FPTP as discussed in our seat projections article).
Applying these figures to an MRP model suggests the most likely outcome of a 2026 election would be a hung parliament, probably with Labour as the largest party despite its low vote share (due to FPTP vote efficiency) and Reform as the second-largest. No combination of left-leaning parties (Labour, Greens, Lib Dems, SNP) would have a majority; no combination of right-leaning parties (Reform, Conservative) would have a majority without a large swing.
However, we are three years from the 2029 election. Historical data suggests that mid-term polls have limited predictive value for the election itself. The 2010 mid-term showed Labour as low as 22% — they ended up at 29% in the 2010 election. The 2002 mid-term showed the Conservatives challenging Labour — they lost by 166 seats in 2005. Three years is a very long time in politics.
The Parliamentary Timetable Between Now and 2029
Several fixed points in the parliamentary calendar will shape the political environment between now and 2029. The Autumn Budget 2026, likely in October or November, will be the first real test of whether the government’s economic strategy is working. The May 2027 local elections will be a critical mid-term indicator: the parties will be competing for council seats that were last fought in 2023, providing a direct comparison point.
If there are any by-elections in marginal seats — triggered by the death or resignation of an MP — they will provide highly watched real-world tests of the polling picture. By-elections historically swing against the government, but in the current multi-party environment their interpretation will be complex.
How to Follow the 2029 Campaign Build-Up
The best way to track the state of play heading toward 2029 is through regular polling aggregates rather than individual polls. Individual polls carry a margin of error of approximately ±3 points; aggregates reduce that uncertainty. The voting intention tracker on this site updates daily as new polls are published, showing the five-poll rolling average for all parties.
As the election approaches, MRP models will become increasingly important, translating national vote share into seat projections. The MRP tracker compiles all published MRP models. And the approval ratings tracker will show whether the leaders’ personal standing is improving or deteriorating as election day nears. Together, these tools provide the most complete available picture of where British politics is heading.