Autumn Budget Concerns: Landlord Tax Rise Could Shrink Rental Supply

Following last week’s Autumn Budget and the announcement of a new property income tax that is 2 percentage points higher than the regular Income Tax, experts across the housing sector are starting to raise concerns about the market’s future. The higher tax, due to come into effect in the coming years, is being seen as another financial pressure at a time when landlords are already dealing with rising costs and tighter regulation.

Many in the industry say the Budget missed an opportunity to support a sector facing well-documented strain. Instead, landlords are preparing for yet another rise in expenses, while tenants remain exposed to continued rent increases driven by persistent shortages in available homes.

How the Budget Added Pressure on an Already Stretched Sector

For several years, landlords have been absorbing higher operating costs, increased borrowing rates and reduced tax reliefs. What began as a gradual shift in the regulatory and financial landscape has become a steady accumulation of pressures, leaving many with slimmer margins than at any point in the past decade.

The new property income tax adds further weight to those challenges. Landlords who previously tolerated modest losses or narrow break-even positions may now face thousands of pounds in additional annual costs. With limited room to manoeuvre, the sector’s capacity to absorb this rise is diminishing.

Landlord Tax Rise Could Push Many Out of the Market

One of the biggest Autumn Budget concerns is that more landlords will decide to exit the sector due to the increased squeeze. The private rented market has already seen a decline in available properties, a trend that has contributed to the steep rent growth seen across 2023 and 2024. In areas like London, increases have been even more pronounced.

If profitability continues to fall, some landlords may choose to sell rather than adjust to the new tax landscape. This could intensify the shortages already being felt, as fewer homes remain available for rent. With demand consistently outpacing supply, any reduction in stock is likely to translate into higher rents for tenants.

Lack of Assessment Raises Further Questions

Another one of the Autumn Budget concerns is that the government did not publish an assessment of how the new measure could affect rent levels or housing availability. Given the pace of rent inflation and the sector’s existing challenges, many expected a more detailed analysis of potential outcomes.

The absence of such modelling has prompted questions about whether the knock-on effects were fully considered. Without a clear understanding of how landlords might respond, there is uncertainty over whether the policy could unintentionally deepen the rental crisis.

Changes Likely to Become Visible Within Two Years

While the surcharge will not be felt immediately, its impact is expected to surface once landlords receive their tax bills for the 2026 or 2027 tax years. As those figures begin to reflect the new rates, decisions about staying in or leaving the sector may follow.

Even a modest increase in landlord exits would have noticeable consequences. With fewer rental properties available, tenants could face even tighter competition and faster rent growth, adding pressure to household budgets at a time when affordability is already strained.

Equality & Market Stability Considerations

Although the government did not assess supply or price impacts, it did outline several equality considerations, including the disproportionate effect on some demographic groups within the landlord population. This highlights the wider social implications of the change, beyond its immediate financial effects.

Sector analysts also note that this measure sits alongside a series of other reforms already reshaping the rental landscape. From changes to mortgage interest rules to the new Renters Rights Act, the cumulative effect of policy shifts continues to alter how landlords operate — and how tenants experience the market.

Conclusion

This approach to the private rented sector has left many with crucial Autumn Budget concerns, questioning whether it addresses the underlying challenges facing both landlords and tenants. With the new surcharge poised to increase operating costs further, doubts remain about the sector’s ability to maintain supply at current levels.

As the full effects unfold over the coming years, the risk of higher rents and reduced availability remains a central concern — one that the Budget has done little to ease.