Stamp Duty Land Tax (SDLT): what property buyers and tenants need to know

Stamp Duty Land Tax (SDLT) is something most property buyers (and some tenants) will encounter, but it is often misunderstood. While many people focus on how much tax they need to pay, the process also involves important legal and administrative requirements.

For many buyers, SDLT is dealt with as part of the conveyancing process. However, understanding what is required, who is responsible for the information submitted, and what happens if deadlines are missed can help avoid unnecessary complications later on.

What is Stamp Duty Land Tax?

SDLT is a tax payable on many purchases and leases of property in England and Northern Ireland. Different taxes apply elsewhere in the UK, including Land Transaction Tax in Wales and Land and Buildings Transaction Tax in Scotland. HMRC states that SDLT is generally payable on purchases above certain thresholds, although the amount due depends on the circumstances of the transaction.

The amount of SDLT payable can be affected by factors including:

• The purchase price
• Whether the property is residential, commercial or mixed-use
• Whether any reliefs or exemptions apply
• The chargeable consideration given for the property including any VAT payable

HMRC provides an online calculator for estimating SDLT, although some transactions require more detailed consideration than a calculator can provide.

What role does a solicitor play?

As part of a property purchase, a solicitor will usually prepare the SDLT return and submit it to HMRC once the buyer has approved and signed it.

Following submission, HMRC issues an SDLT5 certificate. This certificate is generally required before an application to register the transaction at HM Land Registry can proceed.

Although a solicitor prepares and submits the return, HMRC ultimately holds the buyer responsible for ensuring the information contained within it is correct. It is therefore important to check any draft SDLT return carefully before it is submitted.

Questions often arise about what information should be included in an SDLT return, particularly where a transaction involves unusual arrangements or more than one property. In these situations, raising concerns before submission is usually much easier than dealing with enquiries from HMRC at a later stage. Where specialist tax advice may be needed, your property solicitor can help identify this during the transaction.

Why does accuracy matter?

HMRC operates what is often described as a “process now, check later” system.

In practice, this means a return may be accepted when submitted, but HMRC can review it afterwards and raise further questions. Buyers should therefore keep copies of relevant documents for at least six years following completion. HMRC enquiries often arise after a return has been processed, so retaining records can be important if further information is requested.

Particular care may be needed where a transaction involves:

• Linked transactions
• SDLT reliefs
• Variable rent arrangements
• Unusual payment structures

These factors can affect how SDLT is calculated and may require specialist tax advice. While property solicitors deal with the SDLT return as part of the transaction, they are not tax specialists, and further advice may be appropriate depending on the circumstances.

What happens if an SDLT return is submitted late?

Timing is important, as HMRC requires SDLT returns and any tax due to be submitted within 14 days of the ‘effective date’. Whilst usually this is the completion date, in some circumstances, the deadline can arise earlier than expected, including where a property is occupied before formal completion takes place, for example, for fitting out.

Late submissions can result in:

• A £100 fixed penalty
• A £200 fixed penalty where the delay exceeds three months
• Further penalties and interest in certain circumstances

For this reason, buyers should review and return SDLT documentation promptly when requested.

Buying with someone else? Understanding joint responsibility

Where there is more than one buyer or tenant, responsibility for SDLT is shared.

Importantly, this responsibility does not depend on how much each person contributed towards the purchase price. HMRC can pursue any of the buyers/tenants for the full amount due.

Can SDLT obligations continue after completion?

In some cases, yes. Certain lease transactions include rent arrangements where the total amount payable cannot be determined at the outset. For example, part of the rent may depend on future turnover figures.

Where the total chargeable consideration is uncertain at completion, an initial SDLT return may be submitted using reasonable estimates. A further return may then be required at a later date to reflect the actual position.

While these situations are less common, they highlight the importance of understanding any ongoing obligations that may arise from a property transaction.

When should you seek additional advice?

Many purchases involve relatively straightforward SDLT requirements. However, some transactions are more complex and may benefit from specialist input.

Questions can arise where there are linked transactions, multiple properties or potential SDLT reliefs. If you are unsure how these factors may affect your position, it is worth raising them at an early stage of the transaction. Addressing potential issues before completion is usually simpler than correcting mistakes later.

How we can help

At Slater Heelis, our specialist property teams regularly assist buyers and tenants with the legal aspects of property transactions, including the preparation and submission of SDLT returns.

We can explain the information required for the return, discuss the practical steps involved in the process and identify situations where specialist tax advice may be appropriate.

Whether you are purchasing your first business premises, buying an investment property or entering into a commercial lease, obtaining legal advice early can help ensure SDLT requirements are dealt with correctly as the transaction progresses.

Get In Touch

Helen Marsh is a Partner in our Commercial Property team. She has over 20 years’ experience in commercial property and has earned a reputation for her expertise in landlord and tenant work in the hospitality, retail, office and warehouse sectors, acting for known brands with 200+ stores to entrepreneurs taking on their first site.

If you’re looking to understand more about your legal position, contact one of our expert commercial property solicitors today on 0330 111 3131 or via our online enquiry form.