The Higher Rates for Additional Dwellings (HRAD) Architecture
Introduced on 1 April 2016 under Schedule 4ZA of the Finance Act 2003, the Higher Rates for Additional Dwellings (HRAD) regime levies a flat 3% tax surcharge on top of standard residential rates across every slice of the purchase price.
The surcharge applies to buy-to-let investments, holiday homes, second residential properties, and properties purchased by corporate entities.
| Purchase Price Band | Standard Homeowner Rate | Additional Property Rate (+3% Surcharge) | Extra Tax on Surcharge |
|---|---|---|---|
| Up to £125,000 | 0% | 3% | £3,750 (on £125k) |
| £125,001 to £250,000 | 2% | 5% | £3,750 (on £125k) |
| £250,001 to £925,000 | 5% | 8% | £20,250 (on £675k) |
| £925,001 to £1,500,000 | 10% | 13% | £17,250 (on £575k) |
| Over £1,500,000 | 12% | 15% | +3% uncapped |
The 3-Condition Statutory Test: Who Must Pay?
You must pay the 3% surcharge if you meet three statutory criteria on completion day:
1. Price Threshold: The purchase price is £40,000 or greater.
2. Multiple Ownership: At the end of the completion day, you own a major interest in another residential property worth over £40,000 anywhere in the world (including buy-to-lets, inherited shares >£40k, or overseas apartments).
3. Non-Replacement: You are not replacing your previous main residence simultaneously on completion day.
Married couples and civil partners are treated as a single economic unit under law. If one spouse owns a flat, a purchase by the other spouse is automatically subject to the 3% surcharge.
If you buy your new home before selling your old home, you must pay the 3% surcharge upfront on completion day. However, if you sell your previous main residence within 36 months, HMRC will refund 100% of the surcharge upon application.
How to Claim Your SDLT Surcharge Refund from HMRC
To claim your refund from HMRC after selling your previous home, you must submit a claim online via GOV.UK within whichever is the later of:
• 12 months of the sale of your previous main residence, or
• 12 months of the filing date of your original SDLT return.
You will need the Unique Transaction Reference Number (UTRN) from your original SDLT5 certificate, proof of sale of the old home, and your bank details for direct repayment.
Homeowner Due Diligence Checklist for Second Homes
Protect your capital when navigating chain breaks and second property purchases: