HM Revenue and Customs has released fresh guidance on Section 162 Incorporation Relief, and it marks a significant shift for any landlord thinking of moving a property business into a company. The new rules apply to transfers that complete on or after 6 April 2026, and they remove the automatic relief that has been available for many years.
Instead, the taxpayer will need to make a formal claim and provide a package of supporting evidence that demonstrates the business transfer meets all the statutory conditions. For landlords who have built up portfolios across multiple properties, this means gathering far more documentation than was previously required, including detailed valuations and a clear breakdown of the assets and liabilities moving into the new corporate structure.
Where the rental market is concentrated
| District | Post town | Region | Homes owned |
|---|---|---|---|
| LS2 | Leeds | Yorkshire and The Humber | 11.1% |
| SR1 | Sunderland | North East | 11.9% |
| S1 | Sheffield | Yorkshire and The Humber | 13.3% |
| BD1 | Bradford | Yorkshire and The Humber | 13.5% |
| LE1 | Leicester | East Midlands | 14.8% |
| L1 | Liverpool | North West | 15.1% |
| HU1 | Hull | Yorkshire and The Humber | 16.1% |
| NE1 | Newcastle upon Tyne | North East | 16.1% |
| M50 | Salford | North West | 16.9% |
| EC1N | London | London | 17.2% |
The data compiled by Postcodes UK paints a striking picture of rental intensity across the country. While the new HMRC rules will apply wherever a property business is located, the impact is likely to be felt most keenly in postcode districts where renting is the dominant tenure. Our analysis, drawing on the latest official figures, shows that the LS2 district in Leeds tops the list, with 11.1 per cent of households in the private or social rented sector. This concentration of tenancies means that a single incorporation could involve a large number of individual rental agreements, each requiring careful documentation under the new HMRC process.
What the data tells us about the new claim rules
For landlords operating in high-rental areas like LS2, the administrative burden of incorporating may become considerably heavier. The relief itself is valuable because it defers capital gains tax that would otherwise be crystallised on a transfer of properties to a company. However, HMRC’s new insistence on a formal claim means that any oversight in the paperwork could put that tax deferral at risk. The high proportion of rented homes in LS2 suggests that many property businesses in the district are structured as sole trader or partnership portfolios, exactly the type of arrangement that might consider incorporation. If those businesses do proceed, they will need to produce a detailed inventory of assets, a statement of the consideration received, and evidence that the business is being transferred as a going concern. The concentration of rental stock in a single postcode district therefore amplifies the potential volume of transactions that could be affected.
Given that the LS2 area covers a slice of central Leeds with a vibrant student and young professional population, the rental market there is particularly active. The data point of 11.1 per cent may not capture the full scale of buy-to-let activity, as it includes all renting households, but it is the highest proportion recorded in our nationwide dataset. This makes LS2 a useful lens through which to view the broader change. The new HMRC guidance is not targeted at any one location, but its practical effects will be uneven, landing most heavily on the postcodes where landlords are a significant part of the housing economy.
The data behind this
The rental tenure figures referenced in this article are sourced from the Office for National Statistics census and are maintained in the Postcodes UK database, which also incorporates HM Land Registry price data and other official geographic information. The table above provides a snapshot of the top rental concentrations by postcode district, with LS2 serving as a clear example of the pattern that could influence incorporation decisions under the new HMRC claim requirements.
In response to reporting by Property118. Analysis and figures by Postcodes UK.