London homeowners could face a £200 monthly rise in mortgage repayments if Andy Burnham becomes Prime Minister and loses market confidence, experts have warned. As Burnham prepares to potentially succeed Sir Keir Starmer within weeks, analysts caution that unfunded spending commitments could spook bond markets and drive up borrowing costs.
Market Confidence at Risk
Angeline Ong, senior investment analyst at IG, said: "The Truss debacle taught us one brutal truth: promises don’t matter if you can’t explain how you’re paying for them. Right now, there’s real pressure on Burnham to be clear and upfront about his funding plan. If he doesn’t, the City and bond markets could react badly, pushing up borrowing costs, which in turn hits mortgages, pensions and the cost of running the state."
A Burnham government is expected to be to the left of Starmer’s administration. Burnham has backed a land value levy to replace council tax and stamp duty, which could cost hundreds of thousands of Londoners an extra £1,000 in property tax. He has also stated: "We’ve got to get beyond this thing of being in hock to the bond markets," causing jitters in the City.
Impact on London Homeowners
Adam French, head of consumer finance at Moneyfactscompare.co.uk, highlighted that Londoners are particularly vulnerable due to high property prices: "Previous crises in market confidence, such as the aftermath of the mini-Budget and inflation fears following the outbreak of conflict in the Middle East, saw borrowing costs jump by around 100 basis points in a matter of weeks. For a Londoner with a typical mortgage of around £350,000, that could equate to roughly £200 extra a month in repayments."
For a £250,000 mortgage, the increase would be just over £140, and for a £450,000 loan, slightly more than £250. Burnham has sought to reassure markets, saying: "I support the fiscal rules. There needs to be a plan to get debt down, but beyond that, we need to change politics and take the turbulence out of British politics because that is a cause of uncertainty that then has that impact in the markets."
Political Pressure and Fiscal Plans
Burnham faces pressure from Labour MPs to increase public spending in the regions, which could require higher taxes or more borrowing, echoing concerns about a repeat of Liz Truss’s disastrous mini-Budget in September 2022. The City has already priced in Starmer’s resignation and Burnham’s succession. Investors will watch his choice of Chancellor: Wes Streeting, on the right of the party, could ease concerns, while Ed Miliband, more aligned with Burnham’s politics, may not be welcomed by the Square Mile.
Burnham has committed to Labour’s manifesto pledge not to raise income tax or national insurance for working people. He also advocates for lower water, energy, and rail bills, greater public control of utilities, and re-industrialisation of northern England.
