The UK’s next general election must occur by mid-August 2029 under the Dissolution and Calling of Parliament Act 2022, with the prime minister retaining discretion to call an earlier vote. Current Prime Minister Andy Burnham has repeatedly ruled out a snap election, stating in September 2026 that the contest will take place in 2029 to allow time for delivery on priorities such as electoral reform and EU relations. Recent opinion polls show Labour ahead in a fragmented field, with Reform UK competitive and no single party near a majority. Traders are watching for any shift in Burnham’s stance ahead of potential 2027 local contests or by-election results that could alter the incentive to go early versus running on a full-term record.