Guide to Stamp Duty Land Tax for Non-Residential and Mixed Properties

SDLT on Non-Residential and Mixed-Use Property

Stamp Duty Land Tax for non-residential and mixed-use property in England and Northern Ireland uses different rates from standard residential purchases. The main issue is to classify the property correctly, then apply the right SDLT rates to the purchase price, lease premium, rent, or any combination of these.

• Non-residential and mixed-use transactions use slice rates of 0% up to £150,000, 2% from £150,001 to £250,000, and 5% above £250,000.
• Mixed-use property includes both residential and non-residential elements, such as a shop with a flat above.
• For new non-residential or mixed leases, SDLT may be charged separately on any lease premium and on the net present value of the rent.
• Buying six or more dwellings in a single transaction is treated under the non-residential SDLT rate structure.
• Classification can be difficult where land is sold with a dwelling, especially if it is unclear whether the land is part of the garden or grounds.
• Linked transactions with the same seller can increase the SDLT charge, so related purchases should be reviewed together.

Scroll down for the full analysis.

SDLT rates for non-residential and mixed property

This page explains how Stamp Duty Land Tax (SDLT) works when the property is non-residential or mixed use. The key point is that these transactions are taxed under a different rate structure from ordinary residential purchases. In some cases, that can make a significant difference to the SDLT bill.

What this rule is about

SDLT is charged on land transactions in England and Northern Ireland. For non-residential and mixed property, the tax is worked out by applying different rates to different slices of the price or other chargeable consideration.

The first question is therefore not just how much is being paid, but what kind of property is being acquired. The official material distinguishes between:

• non-residential property
• mixed property, which has both residential and non-residential elements
• residential property, which is taxed under a different set of rates

This classification matters because the SDLT rates, and sometimes the overall tax outcome, depend on it.

What the official source says

The official guidance says that SDLT is payable on increasing portions of the price or other consideration when you pay £150,000 or more for non-residential or mixed land or property. Even where the consideration is below £150,000, an SDLT return is still required for most transactions.

The guidance gives the following as examples of non-residential property:

• commercial property such as shops or offices
• property that is not suitable to live in and cannot be made suitable
• forests
• agricultural land forming part of a working farm or used for agricultural purposes
• land or property that is not part of a dwelling’s garden or grounds
• six or more residential properties bought in a single transaction

It also says that agricultural land is taxed at residential rates if it is sold as part of the garden or grounds of a dwelling. A mixed property is one with both residential and non-residential elements, such as a flat attached to a shop, surgery or office.

For freehold purchases, transfers, and lease premiums, the rates stated are:

• 0% on the portion up to £150,000
• 2% on the portion from £150,001 to £250,000
• 5% on the portion above £250,000

For a new non-residential or mixed lease, SDLT is charged separately on:

• the lease premium, using the same rates as above
• the net present value of the rent

The rent element is charged at:

• 0% on NPV up to £150,000
• 1% on the portion from £150,001 to £5,000,000
• 2% on the portion above £5,000,000

If an existing lease is assigned, the guidance says SDLT is charged only on the price or consideration paid for the lease. The rent element does not apply in the same way as it does on the grant of a new lease.

The source also notes that multiple purchases or transfers from the same seller may attract a higher SDLT charge under the linked transactions rules.

What this means in practice

In practice, there are three main steps.

• Decide whether the property is residential, non-residential, or mixed.
• Identify what consideration is being given: purchase price, lease premium, rent, or a combination.
• Apply the correct SDLT rates to each relevant part.

For a freehold commercial purchase, or a mixed-use freehold purchase, SDLT is usually straightforward. You apply the non-residential slice rates to the price.

For a new lease, the calculation is more complicated because there can be two separate SDLT charges. One is on any premium paid for the lease. The other is on the rental stream, converted into a net present value. These amounts are calculated separately and then added together.

The classification point is often the most important. A property with any genuine non-residential element may fall within the mixed-use rules rather than the residential rules. Equally, land that looks agricultural may still be treated as residential if it forms part of the garden or grounds of a dwelling.

The guidance also highlights that buying six or more dwellings in one transaction is treated within the non-residential rate structure. That does not mean the properties stop being dwellings in every legal sense, but for rate purposes the transaction is dealt with under the non-residential SDLT rules.

How to analyse it

When reviewing a transaction, it is sensible to work through the following questions.

• What exactly is being acquired: a freehold, a new lease, or an assignment of an existing lease?
• Is the property wholly non-residential, wholly residential, or mixed?
• If there is land with a dwelling, is that land part of the dwelling’s garden or grounds, or is it separate non-residential land?
• Is there a premium being paid for the lease?
• Is there ongoing rent, and if so does the NPV exceed the £150,000 threshold?
• Are there several purchases or transfers from the same seller that may be linked?
• Are six or more dwellings being bought in a single transaction?

These questions matter because a small factual difference can change the SDLT treatment. For example, land sold with a house may either fall within the residential rules or contribute to mixed-use treatment, depending on whether it is part of the garden or grounds and on the wider facts.

Example

Illustration: a buyer acquires a freehold shop with a flat above it for £275,000. Because the property has both residential and non-residential elements, it is treated as mixed use under the guidance. The non-residential rates apply:

• 0% on the first £150,000 = £0
• 2% on the next £100,000 = £2,000
• 5% on the remaining £25,000 = £1,250

Total SDLT: £3,250.

This mirrors the way the official guidance applies the slice system. The important point is that the tax is not charged at one single rate on the whole price.

Why this can be difficult in practice

The hardest part is often deciding whether the property is truly mixed or residential. The official guidance gives broad examples, but real transactions are often less clear-cut. Land sold with a dwelling can be especially fact-sensitive. The source states that agricultural land sold as part of a dwelling’s garden or grounds is taxed at residential rates, which means the boundary between garden or grounds and separate non-residential land can be important.

Lease transactions can also be difficult because the SDLT calculation may involve both a premium and rent. For new leases, the rent is taxed by reference to net present value rather than simply the annual rent figure. That is a technical calculation, and the total SDLT may be more than a buyer expects if they focus only on the premium.

Another area to watch is linked transactions. The source warns that multiple purchases or transfers from the same seller may produce a higher SDLT charge. That means apparently separate acquisitions should not always be looked at in isolation.

Key takeaways

• Non-residential and mixed property are taxed under a separate SDLT rate structure from ordinary residential purchases.
• For new leases, SDLT may be charged on both the lease premium and the net present value of the rent.
• The classification of the property, especially where land is sold with a dwelling, can materially affect the SDLT result.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: Guide to Stamp Duty Land Tax for Non-Residential and Mixed Properties

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