Report suggests Mansion Tax threshold could fall to £1.5m, catching more landlords
UK Property News

Report suggests Mansion Tax threshold could fall to £1.5m, catching more landlords

By Jordan Hale, Senior Lettings Editor · 20 September 2026 · 1 min read

Editor's note: This brief was summarised by The Property AI Newsroom from a report by Landlord Today. Read the original article for full details.

Report suggests Mansion Tax threshold could fall to £1.5m, catching more landlords

Landlords with high value properties in a portfolio may be caught by what appears to be an expansion of the Mansion Tax, according to a report covered by Landlord Today.

The Tomes reports that Labour may extend its Mansion Tax to properties worth over £1.5m, down from the current £2m threshold.

What the report says

Under the current arrangements, £2m is the threshold at which owners will, from 2028, pay the High Value Council Tax surcharge — the levy commonly referred to as the Mansion Tax. The report suggests this threshold could be lowered to £1.5m, which would bring a wider range of properties into scope.

What this means for landlords and agents

The report's suggestion that landlords holding high value properties within a portfolio may be caught by any such expansion is the point of most relevance to the lettings sector. If the threshold were reduced from £2m to £1.5m, properties that currently fall outside the surcharge could be drawn into it from 2028.

Letting agents and inventory clerks working with landlords who hold higher value properties may wish to note this development, as it could affect the tax position of properties in their clients' portfolios. However, this remains a report of a possible policy change rather than a confirmed measure, and landlords and agents should await official confirmation before drawing conclusions.

The Property AI will continue to monitor developments on the High Value Council Tax surcharge and report further as more details emerge.


Source: Landlord Today
About the author
Jordan Hale
Senior Lettings Editor

Jordan Hale leads The Property AI's lettings coverage with a focus on UK rental legislation, agent compliance, and the day-to-day pressures facing letting agents. Articles bylined Jordan Hale combine current trade reporting with practical guidance for letting agents and inventory…

Specialises in: Renters' Rights Act, EPC regulations, tenancy deposit schemes, agent licensing, Right to Rent compliance.

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