Could Burnham's tax agenda reshape your property bill?

Political speculation rarely moves markets on its own. But when that speculation circles around a potential change to how property is taxed - not just once on purchase, but every year you own it - investors need to pay attention.

Rumours about Sir Keir Starmer's position as Prime Minister, fuelled by comments from US President Donald Trump on social media, have prompted fresh analysis of potential housing tax changes. A Labour leadership succession could mean a significant shift in property taxation policy. There is no confirmed intention from Starmer to step down. The speculation, however, has shone a spotlight on the tax proposals of Andy Burnham, currently seen as the frontrunner to succeed him, according to reporting by PropertyWire.

This article covers speculative proposals only. No policy change has been confirmed or legislated.

The 0.48% levy: what it actually means for your wallet

Burnham has previously expressed support for a proposal by campaign group Fairer Share to replace Stamp Duty Land Tax (SDLT) and council tax with an annual levy of 0.48% of a property's current market value. This would apply across England; Scotland has its own Land and Buildings Transaction Tax and Wales operates Land Transaction Tax, so any reform would be a devolved matter in those nations.

Tom Bill, head of UK residential research at Knight Frank, noted that a future Labour leadership contest could bring these proposals back into active discussion. Under the plan, he said, "landlords, developers, overseas buyers and second-home owners would pay more."

Here is a worked example to make that concrete. Say you own a rental property in the East Midlands currently valued at £275,000. The proposed 0.48% annual levy would produce a charge of £1,320 per year - that is £110 per month added to your cost base, with no natural end date. Unlike SDLT, which you pay once and move on, this charge rises as the property's value rises. If that same property reaches £350,000 in five years, the annual bill climbs to £1,680. Annual revaluations would, in effect, turn house price growth into a tax liability, as Bill put it.

Use our stamp duty calculator to compare your current one-off SDLT exposure against what a recurring annual levy might look like over a typical holding period.

Landlords and developers: the groups most exposed

Bill was direct about the market consequences. "At a time when many landlords are struggling to make things stack up financially, any further disincentive is likely to result in less stock and higher rents," he said.

For landlords already absorbing higher mortgage costs and reduced tax relief on finance charges, an additional annual ownership levy could tip marginal properties into negative cashflow. Whether to hold, sell, or restructure becomes a different calculation entirely. The stress test calculator at Property Filter can help you model how a new annual cost affects a property's viability.

On developers, Bill pushed back on a common assumption: "The notion that developers would rather 'landbank' than build houses for a profit is a misguided assumption." His point is that disincentivising ownership does not automatically translate into more building.

The Fairer Share model is intended to improve social and economic mobility by removing the upfront cost of SDLT - which currently discourages people from moving. The trade-off is a permanent annual charge that rewards inaction (staying put) over activity (investing). For a property investment strategy built on active portfolio management, that shift in incentives matters.

London and the south-east face a disproportionate hit

Bill flagged a geographic dimension that investors in higher-value areas should not ignore. London and the south-east would face proportionately larger charges relative to household income. A property in zone 2 valued at £600,000 would carry an annual levy of £2,880. The psychological difference between a one-off payment and a recurring annual bill also matters - Bill noted this would affect buyer and seller behaviour in ways that echo how SDLT surcharges have curbed activity in premium locations since 2014.

Burnham has also shown interest in Land Value Tax concepts and, during his time as Mayor of Greater Manchester, increased landlord fines by 43% and backed rent control powers. Those positions, taken together, point toward a policy environment where the cost and regulatory burden of property ownership rises, while the returns available to investors come under pressure.

Vanessa Hale, Chief Executive of Real Estate:UK, captured the broader concern: "With viability challenges meaning that building activity across the country is stalled, it is imperative that we move as quickly as possible back to a more stable, predictable policy environment." The leadership uncertainty itself, regardless of what policy follows, adds friction to investment decisions.

For investors thinking about portfolio structure in light of potential ownership-based taxation, the business and systems section covers incorporation, holding structures, and how different ownership vehicles respond to tax changes.

Key takeaways

- The proposed 0.48% annual levy is speculative - no legislation exists and no election has been called. Policy proposals remain at discussion stage only. - On a £275,000 property, the levy would cost £1,320 per year - a permanent, rising annual charge rather than a one-off transaction cost. - Landlords, second-home owners, overseas buyers, and developers would be more exposed than owner-occupiers under the Fairer Share model. - London and the south-east face a proportionately larger burden; a £600,000 property would attract a £2,880 annual charge. - Annual revaluations mean house price growth directly increases your tax bill - a structural shift in how ownership is penalised versus rewarded.