The long-awaited 2025 Autumn Budget has arrived, and while some expected sweeping reforms, the Chancellor’s announcement delivered a mix of surprises, omissions, and significant changes that will shape the UK property market over the coming years.
For landlords, investors, and homebuyers, understanding these changes is essential for planning ahead. Below, we’ve broken down the key measures and their impact on the sector.
No Changes to Stamp Duty, But Other Tax Pressures Rise
Despite heavy speculation, Stamp Duty Land Tax (SDLT) remains untouched. Likewise, there were no updates to Local Housing Allowance (LHA) rates, which many hoped would be reviewed to support tenants and landlords alike.
However, the Budget was far from light on property-related taxation. The government confirmed movement on three major areas:
- A proposed “mansion tax” on properties valued above £2 million
- Higher property income tax rates from 2027
- Increases to the National Minimum Wage
These measures, combined with previous years of tax and regulatory tightening, signal ongoing pressure for property investors and private landlords.
Landlords & Short-Term Let Owners: Rising Taxes and New Levies
One of the most significant announcements is a 2% rise in property income tax rates, effective from April 2027.
The new rates will be:
- 22% – Basic rate
- 42% – Higher rate
- 47% – Additional rate
This increase follows a decade-long trend of reduced landlord incentives, including:
- The removal of full mortgage interest relief
- Higher SDLT surcharges
- Reduced capital gains allowances
- The introduction of the Renters’ Rights Act
In addition, regional mayors will soon have the power to introduce an “overnight visitor levy”, similar to systems in Wales and Scotland.
A consultation will determine how these levies are designed, but short-term let owners should expect higher operating costs in the near future.
Long-term impact on the rental sector
As landlord returns continue to erode, supply in the private rented sector is expected to decline — a shift that could push rents steadily upward if demand remains strong.
Homebuyers: High-Value Council Tax Surcharge & Market Outlook
While first-time buyers avoided direct changes to SDLT, the Budget introduced a major new cost for the luxury property market.
High-Value Council Tax Surcharge From April 2028
Properties worth over £2 million will face an annual surcharge of £2,500 to £7,500, depending on banding.
This will particularly affect prime London neighbourhoods, an important consideration for both buyers and investors operating in those markets.
House price forecasts remain positive
Despite increased taxation at the top end, market fundamentals remain strong. Forecasts indicate:
- Average UK house prices rising from £260,000 in 2024 to just under £305,000 in 2030
- Average annual growth of 5% from 2026 onward
- Growth broadly aligned with earnings
This suggests a steady, sustainable trajectory rather than a boom or crash.
Homebuying process reforms underway
The government is actively consulting on reforming the transaction process, long criticised for inefficiency. Key priorities include:
- Fairer, updated Stamp Duty thresholds
- Reducing delays and fall-throughs
- Supporting downsizing to ease housing shortages
Finchleys welcomes these consultations, which could meaningfully improve the buying and selling experience.
Businesses: Tax Relief Changes & Rising Employment Costs
The Budget also introduced several business-related measures that will impact landlords operating through limited companies, property businesses with staff, and agencies.
Writing Down Allowance Reduced
From April 2026, the main rate for Writing Down Allowances will fall:
- From 18% → 14%
This means it will take longer for businesses to benefit from tax relief on assets such as:
- Second-hand equipment
- Company cars
- Property fixtures not eligible for full expensing
National Insurance Threshold Freeze
The freeze on the employer NICs secondary threshold will extend until 2030–31.
Additionally, from April 2029, salary-sacrificed pension contributions above £2,000 per year will become subject to both employer and employee NICs.
Minimum wage rises impacting agency costs
From April 2026, the National Minimum Wage will increase to:
- £12.71 for over-21s
- £10.85 for ages 18–20
- £8.00 for under-18s and apprentices
Businesses employing staff, including estate and lettings agencies, should prepare for higher payroll expenses.
Business rates relief for key sectors
Changes include:
- Lower multipliers for retail, hospitality, and leisure
- Transitional relief to cap increases after the 2026 revaluation
This will offer some support for high-street-based property businesses.
Bottom Line
The 2025 Budget reinforces a consistent trend: property is becoming a more heavily taxed, tightly regulated sector, particularly for landlords and high-value property owners.
However, the broader market outlook remains stable, with steady price growth forecast and renewed focus on improving transaction efficiency.
Whether you’re a landlord reassessing your portfolio, an investor evaluating returns, or a homebuyer planning ahead, staying informed will be essential in navigating the years ahead.
