The Autumn Budget is confirmed for Wednesday 26 November 2025, and landlords should be paying close attention. With public finances under pressure, the Chancellor has warned of “difficult decisions” and tax rises aimed at those most able to bear them – a group which may include private landlords.
Here’s what we know so far, what’s being speculated, and the actions landlords can take now to stay ahead.
What’s confirmed vs what’s rumoured
Confirmed:
The Budget date and the tough fiscal backdrop. Growth forecasts from the Office for Budget Responsibility (OBR) are expected to be revised down, with borrowing still above target. That sets the stage for tax rises aimed at meeting the government’s fiscal rules ahead of the next general election.
Rumoured:
There has been widespread media speculation about potential new taxes on property income. Key ideas floated include:
• Charging National Insurance on rental profits
• Changes to Capital Gains Tax (CGT) rates or allowances
• Other “fairness” measures targeting income from property or investments
At this stage, none of these have been confirmed. As always, treat any rate changes or thresholds as pure speculation until the Chancellor stands at the despatch box and the Red Book is published.
NI on rental profits – what we know
The idea of applying National Insurance to rental income has reportedly been considered by the Treasury as part of efforts to align taxation of different income sources. But no formal proposal has been published, and the design, rate, or scope remain entirely unknown.
The Institute for Fiscal Studies (IFS) has warned that such a move, if not handled carefully, could increase complexity and risk distorting investment decisions, especially if applied in isolation rather than as part of broader reform.
Making Tax Digital (MTD): don’t lose sight of what’s already coming
While speculation dominates headlines, landlords should not forget that major change is already on the way. From 6 April 2026, Making Tax Digital for Income Tax will begin phasing in for those with combined self-employment and property income over £50,000, and from April 2027 for those over £30,000. A further extension to cover income above £20,000 is planned.
If you’re not already preparing, now is the time to get your recordkeeping and accounting software in order.
Stay alert, stay prepared
We’ll be watching for any early briefings, technical documents, or leaks in the lead-up to the Budget. Whether NI on rental profits is announced, or CGT reform is back on the table, landlords should be ready for possible tax shifts and prepared to act quickly.
Contact one of our highly experienced mortgage advisors today on 0121 500 6316 to discuss your mortgage needs.
