18/02/2026
Property Taxes in the UK: SDLT, Ongoing Charges and Tax on Sale Explained
Property transactions in the UK can trigger a wide range of taxes, depending on whether a property is being bought, held or sold, and whether it is residential or commercial. These taxes can arise at multiple stages of ownership and are often overlooked until late in the process, when planning opportunities may already have been lost.
This article provides an overview of the main UK taxes affecting property owners, focusing on purchase taxes, ongoing charges during ownership, and the tax consequences on disposal.
Taxes when buying a property
The most well-known tax on acquiring property in England and Northern Ireland is Stamp Duty Land Tax (SDLT). SDLT was introduced in its current form in 2003, evolving from historic stamp duty, one of the UK’s oldest taxes.
Equivalent taxes apply elsewhere in the UK:
Land and Buildings Transaction Tax (LBTT) in Scotland
Land Transaction Tax (LTT) in Wales
SDLT is a self-assessed tax, payable by the purchaser, and is calculated as a percentage of the consideration paid for the property.
Residential vs non-residential SDLT rates
SDLT rates differ depending on the nature of the property:
Residential property includes buildings suitable for use as a dwelling, together with gardens and grounds.
Non-residential or mixed-use property (for example, shops, offices, or property with both residential and commercial elements) is subject to lower rates and higher thresholds.
Residential SDLT rates are generally higher and apply at lower price thresholds than non-residential rates.
SDLT surcharges and higher rates
In addition to the standard SDLT rates, residential property may attract additional surcharges, including:
The higher rates for additional dwellings, where the purchaser already owns another residential property
A non-UK resident surcharge for individuals who are not UK resident for SDLT purposes
A 15% flat SDLT rate for certain residential properties acquired by companies where the consideration exceeds £500,000, unless specific reliefs apply
These surcharges can significantly increase the upfront cost of acquiring property and should be factored into purchase decisions early.
Taxes during property ownership
Once a property has been acquired, further taxes may arise during the period of ownership.
Council tax and business rates
Council tax applies to residential properties and is usually payable by the occupier.
Business rates apply to commercial properties and are generally payable by the occupier, subject to reliefs.
These charges are well established, but recent developments have added complexity for owners of high-value property.
High-value council tax surcharge (“mansion tax”)
A recently announced high-value council tax surcharge, widely referred to in the media as a “mansion tax”, applies to properties valued at over £2 million.
Unlike standard council tax, which is payable by the occupier, this surcharge is payable by the property owner, regardless of occupation. This creates an additional annual cost for owners of high-value residential property and represents a shift in how ongoing property taxation is structured.
Annual Tax on Enveloped Dwellings (ATED)
Where a limited company owns a residential property worth more than £500,000, an additional charge may apply under the Annual Tax on Enveloped Dwellings (ATED) regime.
ATED applies where the property is not used for qualifying business purposes and is charged annually based on:
the property’s value at the most recent five-yearly valuation date (the last being 1 April 2022), and
fixed ATED bands set by HMRC.
While reliefs are available for certain business uses (such as property letting or development), returns often still need to be filed even where no ATED is payable.
Tax on selling a property
When a property is sold, the principal tax to consider is capital gains tax (CGT).
For most individuals, CGT is charged on the increase in value between acquisition and disposal, after deducting allowable costs and reliefs.
Residential property and CGT reporting
Residential property attracts additional compliance obligations:
UK residents must submit a CGT return and pay any CGT due within 60 days of completion where tax is payable.
Non-UK residents must submit a CGT return within 60 days of completion, even where no tax is due.
Failure to meet these deadlines can result in penalties and interest.
Principal Private Residence (PPR) relief
The most significant CGT relief for residential property is Principal Private Residence (PPR) relief, which can fully or partially exempt gains on the sale of an individual’s main or only home.
PPR relief is extremely valuable. In 2023/24 alone, it is estimated to have reduced CGT receipts by £31.5 billion that would otherwise have been payable.
However:
periods of non-occupation may be taxable,
second homes do not qualify, and
rental properties are usually fully within the scope of CGT.
Accurate occupation records are essential to support any claim.
Commercial property and CGT
Gains on commercial property are also subject to CGT, but additional reliefs may be available.
Where the sale forms part of a wider disposal or retirement from a trading business, the gain may qualify for Business Asset Disposal Relief, which applies at a 14% CGT rate for 2025/26.
However, this relief is tightly restricted. For example:
if the property is held outside the business and
the business pays a full market rent,
eligibility for relief may be reduced or lost altogether.
When property sales are taxed as income
In some cases, profits from selling land or buildings may be taxed as income rather than capital gains.
This can occur where:
the property is held as trading stock, such as by a property developer, or
the individual’s activities amount to a trade under the badges of trade (for example, frequent buying, developing and selling of properties with a profit motive).
In these cases, profits are subject to income tax or corporation tax, not CGT.
Transactions in land rules
The transactions in land rules represent a further anti-avoidance measure.
These rules apply where land is acquired or developed with a main purpose (or one of the main purposes) of realising a profit on disposal. They were significantly expanded in Finance Act 2016 and can apply even where the transaction might otherwise appear capital in nature.
HMRC may also apply these rules to so-called “slice of the action” arrangements, where a landowner receives contingent or future payments linked to development profits. In such cases:
payments may be taxed as income, and
the owner is treated as sharing in development profits rather than disposing of a capital asset.
These rules are complex and frequently misunderstood.
Practical planning considerations
Property taxation spans multiple tax regimes and often involves overlapping rules. Common pitfalls include:
underestimating SDLT surcharges,
failing to consider ATED or high-value council tax charges,
missing 60-day CGT reporting deadlines, and
assuming gains will be taxed as capital when income tax rules may apply.
Early advice is critical, particularly for high-value or development-related transactions.
How we can help
Property transactions can trigger significant tax liabilities if not structured carefully. If you are buying, holding or selling property, we can help you understand the tax implications, identify available reliefs, and ensure all reporting obligations are met. Please contact us to discuss your circumstances and avoid unexpected tax costs.
