Andy Burnham will be formally confirmed as the UK’s next Labour leader on Friday before succeeding Sir Keir Starmer as prime minister on Monday, according to party officials. The Makerfield MP secured the backing of 349 Labour MPs and affiliated trade unions earlier this week, clearing the path for his ascension.

Starmer, in his final days as prime minister, has moved to solidify his legacy, including nominating London Mayor Sadiq Khan for a peerage. A government source stated that Khan’s contributions—such as reducing violent crime, improving air quality, and delivering the Elizabeth Line—warranted the honor.

Burnham’s transition and cabinet expectations

Burnham’s first major decision as prime minister will be assembling his cabinet. While he has not publicly confirmed his selections, sources indicate Shabana Mahmood, the current home secretary, is the leading candidate for chancellor. Mahmood’s steady handling of the immigration portfolio has earned her broad support within the party.

Starmer, in an interview with Sky News, expressed confidence in Burnham’s ability to lead Labour to victory in the next general election. “We’ve built the foundation for this now,” he said. “Labour can go on and win that election. I’m proud to hand over the party in good shape to Andy Burnham.”

Economic and constitutional challenges ahead

The International Monetary Fund (IMF) has urged Burnham’s incoming government to avoid increasing public spending, advocating instead for a focus on economic growth and debt stabilization. The IMF’s report emphasized the need for “a cautious approach to new fiscal pressures” and reprioritization of existing resources.

Meanwhile, Lord Forsyth of Drumlean, the Lord Speaker, cautioned Burnham against rapid reforms to the House of Lords, warning that such changes could “blow a constitutional fuse.” Burnham has previously advocated for turning the upper chamber into an elected body, potentially beginning with the appointment of metro mayors.

Burnham has also signaled openness to a wealth tax, stating that the government “might be having to ask for a little more” to address fiscal imbalances. He pledged to maintain a “greater sense of fairness” in economic policy while avoiding divisive rhetoric.