THE PROPERTY FILTER TAKE
HMRC updated its guidance in June 2026 clarifying exactly when an SDLT return must be filed after a property or land transaction in England or Northern Ireland.
The 14-day filing deadline runs from the effective date of the transaction and applies even when your liability is £0 - missing it triggers automatic financial penalties from HMRC.
If your transaction is close to the £40,000 freehold exemption threshold, or involves a gift or linked purchases, you may wish to confirm the filing obligation with your solicitor before completion.
The 14-day clock starts the moment you complete a property or land purchase in England or Northern Ireland. Most buyers rely on their solicitor to handle the Stamp Duty Land Tax return. But knowing when the obligation applies, and when it does not, means you are never caught out by HMRC penalties.
When You Must File
You must send an SDLT return to HMRC for most land and property transactions in England and Northern Ireland (GOV.UK). The obligation applies regardless of whether any tax is actually due. If you are a first-time buyer purchasing a property worth £300,000, for example, your SDLT liability is £0 under first-time buyer relief - but you are still required to file.
SDLT applies only in England and Northern Ireland. Scotland uses Land and Buildings Transaction Tax (LBTT), administered by Revenue Scotland. Wales uses Land Transaction Tax (LTT), administered by the Welsh Revenue Authority. If you are buying in either nation, a different regime applies entirely.
The return must be filed, and any tax paid, within 14 days of the effective date of the transaction (GOV.UK). The effective date is usually the completion date. Where a buyer takes possession before formal completion - a process known as substantial performance - the 14-day clock starts from that earlier date.
Late filing triggers automatic penalties. HMRC charges £100 for a return up to three months late and £200 after that, with further interest applied to any unpaid tax (GOV.UK). Your solicitor will typically file on your behalf, but the legal obligation sits with you.
When No Return Is Needed
Not every transaction requires a return. HMRC guidance sets out specific exemptions (GOV.UK):
- Freehold property with total chargeable consideration below £40,000 - Transactions with no chargeable consideration, such as outright gifts - A new or assigned lease of fewer than seven years where the consideration falls below the relevant SDLT threshold - A new or assigned lease of seven or more years where the premium is below £40,000 and the annual rent is below £1,000
One important exception: linked transactions. If you buy two or more connected properties from the same seller, the thresholds are assessed on the combined figure, not each deal individually. Two freehold plots each worth £25,000 from the same seller become a single £50,000 transaction - above the threshold, and a return is required.
What the Rates Look Like in Practice
Since 1 April 2025 the SDLT nil-rate threshold for residential property reverted to £125,000 (GOV.UK). The rate is 2% on the portion between £125,001 and £250,000, and 5% on the portion between £250,001 and £925,000, rising to 10% up to £1.5 million and 12% above that.
On a property worth £325,000, the liability works out like this: 0% on the first £125,000 is £0; 2% on the next £125,000 is £2,500; and 5% on the remaining £75,000 is £3,750. Total liability: £6,250. Use the Property Filter stamp duty calculator to check your own figure before exchange.
First-time buyers purchasing at or below £500,000 pay 0% on the first £300,000 and 5% on the portion up to £500,000 (GOV.UK). Above £500,000 there is no relief and standard rates apply in full.
If you are buying an additional residential property - a buy-to-let (BTL) or second home - a 5% surcharge applies on top of standard rates. That surcharge increased from 3% to 5% at the Autumn Budget 2024, effective 31 October 2024 (GOV.UK). If you are modelling a BTL investment, run the numbers through the stress test calculator before committing.
Whatever your situation, speak to your accountant before exchange - especially where linked transactions, company structures, or gifted deposits are involved. For broader context on how tax intersects with property finance, see the negotiation and finance section of the Property Filter blog, or explore the full free calculators hub to model your position.
Key takeaways
- The SDLT nil-rate threshold is £125,000 for residential property from 1 April 2025, with rates rising through 2%, 5%, 10%, and 12% above that (GOV.UK) - You must file an SDLT return within 14 days of completion even when your liability is £0 - failure triggers automatic penalties starting at £100 - Freehold transactions with consideration below £40,000 are generally exempt from filing, but linked transactions are assessed on the combined total
The 14-day clock starts the moment you complete a property or land purchase in England or Northern Ireland. Most buyers rely on their solicitor to handle the Stamp Duty Land Tax return. But knowing when the obligation applies, and when it does not, means you are never caught out by HMRC penalties.
When You Must File
You must send an SDLT return to HMRC for most land and property transactions in England and Northern Ireland (GOV.UK). The obligation applies regardless of whether any tax is actually due. If you are a first-time buyer purchasing a property worth £300,000, for example, your SDLT liability is £0 under first-time buyer relief - but you are still required to file.
SDLT applies only in England and Northern Ireland. Scotland uses Land and Buildings Transaction Tax (LBTT), administered by Revenue Scotland. Wales uses Land Transaction Tax (LTT), administered by the Welsh Revenue Authority. If you are buying in either nation, a different regime applies entirely.
The return must be filed, and any tax paid, within 14 days of the effective date of the transaction (GOV.UK). The effective date is usually the completion date. Where a buyer takes possession before formal completion - a process known as substantial performance - the 14-day clock starts from that earlier date.
Late filing triggers automatic penalties. HMRC charges £100 for a return up to three months late and £200 after that, with further interest applied to any unpaid tax (GOV.UK). Your solicitor will typically file on your behalf, but the legal obligation sits with you.
When No Return Is Needed
Not every transaction requires a return. HMRC guidance sets out specific exemptions (GOV.UK):
- Freehold property with total chargeable consideration below £40,000 - Transactions with no chargeable consideration, such as outright gifts - A new or assigned lease of fewer than seven years where the consideration falls below the relevant SDLT threshold - A new or assigned lease of seven or more years where the premium is below £40,000 and the annual rent is below £1,000
One important exception: linked transactions. If you buy two or more connected properties from the same seller, the thresholds are assessed on the combined figure, not each deal individually. Two freehold plots each worth £25,000 from the same seller become a single £50,000 transaction - above the threshold, and a return is required.
What the Rates Look Like in Practice
Since 1 April 2025 the SDLT nil-rate threshold for residential property reverted to £125,000 (GOV.UK). The rate is 2% on the portion between £125,001 and £250,000, and 5% on the portion between £250,001 and £925,000, rising to 10% up to £1.5 million and 12% above that.
On a property worth £325,000, the liability works out like this: 0% on the first £125,000 is £0; 2% on the next £125,000 is £2,500; and 5% on the remaining £75,000 is £3,750. Total liability: £6,250. Use the Property Filter stamp duty calculator to check your own figure before exchange.
First-time buyers purchasing at or below £500,000 pay 0% on the first £300,000 and 5% on the portion up to £500,000 (GOV.UK). Above £500,000 there is no relief and standard rates apply in full.
If you are buying an additional residential property - a buy-to-let (BTL) or second home - a 5% surcharge applies on top of standard rates. That surcharge increased from 3% to 5% at the Autumn Budget 2024, effective 31 October 2024 (GOV.UK). If you are modelling a BTL investment, run the numbers through the stress test calculator before committing.
Whatever your situation, speak to your accountant before exchange - especially where linked transactions, company structures, or gifted deposits are involved. For broader context on how tax intersects with property finance, see the negotiation and finance section of the Property Filter blog, or explore the full free calculators hub to model your position.
Key takeaways
- The SDLT nil-rate threshold is £125,000 for residential property from 1 April 2025, with rates rising through 2%, 5%, 10%, and 12% above that (GOV.UK) - You must file an SDLT return within 14 days of completion even when your liability is £0 - failure triggers automatic penalties starting at £100 - Freehold transactions with consideration below £40,000 are generally exempt from filing, but linked transactions are assessed on the combined total
Frequently asked questions
Frequently asked questions
When must I file an SDLT return?
Do I need to file if I owe no SDLT?
Does SDLT apply if I buy in Scotland or Wales?
What happens if I miss the 14-day deadline?
Is there a threshold below which I never need to file?
