The stamp duty second home surcharge adds 5% to your stamp duty bill when buying an additional property. Here’s exactly how it works, who pays it, and how to avoid or reclaim it.
How the Surcharge Works
The 5% surcharge is added on top of standard stamp duty (SDLT) rates across all bands. It applies to the entire purchase price, not just the portion above a threshold.
Standard vs Surcharge Rates
| Property Price Band | Standard SDLT Rate | With 5% Surcharge |
|---|---|---|
| Up to £250,000 | 0% | 5% |
| £250,001 - £925,000 | 5% | 10% |
| £925,001 - £1,500,000 | 10% | 15% |
| Over £1,500,000 | 12% | 17% |
Worked Examples
| Property Price | Standard SDLT | With Surcharge | Total Extra Cost |
|---|---|---|---|
| £200,000 | £0 | £10,000 | £10,000 |
| £250,000 | £0 | £12,500 | £12,500 |
| £300,000 | £2,500 | £17,500 | £15,000 |
| £400,000 | £7,500 | £27,500 | £20,000 |
| £500,000 | £12,500 | £37,500 | £25,000 |
Detailed Calculation — £300,000 Second Property
| Band | Amount in Band | Standard Rate | Surcharge Rate | Tax |
|---|---|---|---|---|
| £0-£250,000 | £250,000 | 0% | 5% | £12,500 |
| £250,001-£300,000 | £50,000 | 5% | 10% | £5,000 |
| Total | £17,500 |
Without the surcharge, that same £300,000 property would cost just £2,500 in stamp duty.
Who Pays the Surcharge?
You pay the 5% surcharge if at the end of the day of purchase you own two or more residential properties. This includes:
| Scenario | Surcharge? | Notes |
|---|---|---|
| Buying a buy-to-let property | Yes | Classic additional property |
| Buying a holiday home / second home | Yes | Additional residential property |
| Buying new home before selling old one | Yes* | *Refund available within 36 months |
| Buying a property while owning abroad | Yes | Worldwide property ownership counts |
| Inheriting a property, then buying | Depends | Only if inherited share is 50%+ |
| Buying with someone who owns a property | Yes | If either buyer owns another property |
| Buying a property worth under £40,000 | No | Threshold exemption |
| Buying a non-residential property | No | Commercial property has separate rates |
| Replacing your only main residence | No | Direct replacement exempt |
When You Can Get a Refund
If you bought a new main residence before selling your old one, you can reclaim the surcharge — provided:
- You sell the old property within 36 months of buying the new one
- The old property was your main residence
- You intended the new property to be your replacement main residence
- You apply to HMRC for a refund within 12 months after selling the old property (or 12 months after the filing date)
How to Claim
- Complete HMRC’s online stamp duty refund form
- Provide details of both transactions (purchase and sale)
- HMRC typically processes refunds within 15 working days
- The refund includes any interest owed
Exemptions
The surcharge does not apply in these circumstances:
| Exemption | Details |
|---|---|
| Property under £40,000 | Total purchase price below £40,000 |
| Caravans, mobile homes, houseboats | Not treated as residential for SDLT purposes |
| Replacing main residence | Direct swap — sell one, buy one (no overlap) |
| Non-residential property | Commercial, agricultural, mixed-use |
| Buying after divorce/separation | Court order transfers may be exempt |
| Inherited property (minor share) | If inherited share is less than 50% |
Scotland and Wales — Different Rules
Scotland (LBTT Additional Dwelling Supplement)
Scotland charges its own additional dwelling supplement (ADS) of 8% (higher than England’s 5%):
| Property Price | LBTT | With 8% ADS | Total |
|---|---|---|---|
| £200,000 | £1,100 | £16,000 | £17,100 |
| £300,000 | £4,600 | £24,000 | £28,600 |
| £400,000 | £14,600 | £32,000 | £46,600 |
Scotland’s ADS is significantly more expensive than England’s surcharge.
Wales (LTT Higher Rates)
Wales charges a 5% surcharge (slightly different rate structure from England):
| Property Price | LTT | With Surcharge | Total |
|---|---|---|---|
| £200,000 | £1,500 | £10,000 | £11,500 |
| £300,000 | £5,000 | £15,000 | £20,000 |
| £400,000 | £11,150 | £20,000 | £31,150 |
Impact on Buy-to-Let Investors
The surcharge significantly affects investment property returns:
| Property Price | Total Stamp Duty (incl. surcharge) | As % of Purchase Price |
|---|---|---|
| £200,000 | £10,000 | 5.0% |
| £250,000 | £12,500 | 5.0% |
| £300,000 | £17,500 | 5.8% |
| £400,000 | £27,500 | 6.9% |
| £500,000 | £37,500 | 7.5% |
For a £300,000 buy-to-let earning £15,000/year rent, the £17,500 stamp duty represents over a year of rental income.
Strategies to Manage the Surcharge
Timing Your Sale
- If buying a replacement home, try to sell before or simultaneously with your purchase
- You have 36 months to sell and claim a refund — but tying up £15,000-£25,000+ in the meantime affects your cash flow
Company Purchase
- Some investors buy through a limited company to claim mortgage interest relief
- The surcharge still applies to company purchases of residential property
- An additional 15% rate applies to residential purchases by companies over £500,000 in certain circumstances
Transferring to a Spouse
- Transfers between spouses/civil partners are usually exempt from stamp duty
- This doesn’t help avoid the surcharge if the spouse also already owns property