Can you still claim an SDLT refund on buy-to-let properties bought between 2016 and 2019?

Introduction

Many property investors search for this issue after hearing about Stamp Duty Land Tax, or SDLT, refund claims for properties bought in poor condition. A common question is whether older purchases can still be reviewed, especially where several buy-to-let properties were bought through a limited company.

The short answer is that timing is critical. Even if a property might once have supported an SDLT repayment argument, there is a strict statutory time limit for amending a land transaction return and claiming a refund. For many purchases completed several years ago, that time limit has already expired.

The Question

A residential property investor bought a number of buy-to-let properties through a limited company between 2016 and 2019. The investor wanted to know whether any SDLT reclaim was still possible, particularly on the basis that some refund claims can arise where a property was in poor condition at the time of purchase.

Nick’s Explanation

Nick’s answer was direct: the purchases were outside the normal claim window.

In anonymised form, his explanation was that the relevant rule in the Finance Act 2003 requires a claim or amendment to be received within four years of the effective date of the transaction. He therefore explained that purchases completed between 2016 and 2019 were already out of time, and that only purchases completed within the last four years might still be capable of review.

He also asked whether any further properties had been bought after January 2020, because those later purchases might still have fallen within the statutory window at the time of the exchange.

The Law

SDLT is charged under Finance Act 2003. In most refund or correction cases, the starting point is the land transaction return already filed with HMRC. If the buyer believes too much tax was paid, the usual route is to amend the return or make a repayment claim within the statutory time limit.

The key point is that the time limit is generally four years from the effective date of the transaction. In most ordinary purchases, the effective date is the completion date, although there are exceptions in some contract situations.

Where a taxpayer argues that a dwelling was not suitable for use as a dwelling at the effective date, that argument goes to whether the transaction should have been taxed as residential property. This issue has been considered in a number of cases, including HMRC v P N Bewley Ltd. However, even if the substantive argument might once have had merit, the procedural time limit still matters. If the claim is out of time, HMRC will usually reject it regardless of the underlying facts.

It is also important to understand that the legal threshold for saying a property was not suitable for use as a dwelling is now relatively high following Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799. A property does not fall outside the residential rules merely because it needs repair, modernisation, or substantial improvement. The condition must be serious enough at the effective date to cross that higher threshold.

Analysis

There are two separate questions in cases like this:

1. whether the claim is still in time; and
2. whether the property facts would support a refund on the merits.

In this scenario, the first question decides the matter.

If the purchases took place between 2016 and 2019, the four-year amendment window has expired. That means HMRC would usually say the returns can no longer be amended through the ordinary statutory route. Once that happens, it does not matter that the properties were buy-to-let properties, or that they were bought through a limited company, or even that some of them may have been in poor condition.

For example, a purchase completed in:

• 2016 would normally have gone out of time in 2020;
• 2017 would normally have gone out of time in 2021;
• 2018 would normally have gone out of time in 2022; and
• 2019 would normally have gone out of time in 2023.

That is why Nick focused on whether there had been any later acquisitions after January 2020. At the time he replied, a purchase after that point might still have been capable of review, depending on the exact completion date.

If a transaction is still within time, the next step would be to examine the condition of the property at completion. But readers should be cautious here. After Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799, the bar for proving a dwelling was not suitable for use as a dwelling is demanding. Problems such as dated kitchens, defective bathrooms, missing decorative finishes, damp, or a need for refurbishment may not be enough on their own. The condition must be materially more serious.

Outcome

If all of the relevant buy-to-let purchases were completed between 2016 and 2019, the practical conclusion is that they are usually out of time for a standard SDLT refund claim based on amendment of the return.

In other words, the age of the transactions is the main obstacle. Even if the properties were in poor condition, the statutory time limit is likely to prevent recovery.

Practical Steps

If you are assessing your own position, the sensible steps are:

1. List each property purchase separately.
2. Identify the exact effective date of each transaction, usually the completion date.
3. Count four years from that date.
4. Check whether any transaction is still within that period.
5. If a transaction is still in time, gather evidence of the property’s condition at completion, such as surveys, photographs, contractor reports, mortgage valuation material, and correspondence from the time.
6. Assess carefully whether the condition could genuinely meet the now high threshold for not being suitable for use as a dwelling, bearing in mind Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.
7. Review the SDLT return and calculation for each property individually, because eligibility depends on the facts and timing of each transaction.

Conclusion

For buy-to-let properties bought between 2016 and 2019, an SDLT reclaim will usually be out of time because Finance Act 2003 generally allows only four years from the effective date of the transaction. If there were later purchases, those may still need checking, but any argument based on a property being uninhabitable now faces a relatively high legal threshold after Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799.

Legal References Used

• Finance Act 2003
• HMRC v P N Bewley Ltd
• Amarjeet and Tajinder Mudan v The Commissioners for HMRC [2025] EWCA Civ 799

This page was last updated on 22 March 2026.

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