Can I get a Stamp Duty refund if I sell my previous main home after buying a new one?

Full answer

The Stamp Duty Land Tax additional property surcharge can create a temporary but significant cash-flow burden for people who buy their new main home before selling their previous one, but a refund mechanism exists for exactly this situation. **Why the surcharge applies in the first place** When you buy a new residential property while still owning another one (even if you fully intend to sell the old one shortly afterwards and it will become your only home), SDLT rules treat this as an additional property purchase at the point of completion, triggering the 5% surcharge on top of the standard SDLT rates for the whole purchase price, since technically you owned two properties at that moment. **The three-year window to claim a refund** If you sell your previous main residence within three years of completing the purchase of your new main residence, you can apply to HMRC for a refund of the additional 5% surcharge paid on the new property, since the situation is retrospectively recognised as a straightforward replacement of your main residence rather than a genuine second property purchase. **How to make the claim** The refund claim must generally be made within 12 months of selling the previous home, or within 12 months of the filing date of the SDLT return for the new property (whichever is later), and is made using HMRC's specific SDLT refund request process, providing details of both transactions including completion dates and the SDLT originally paid. **What happens if you cannot sell within three years** If your previous home is not sold within the three-year window (for example, due to a slow property market or difficulty selling), the surcharge refund is not available, and the additional 5% remains payable permanently on the new property purchase -- there is generally no further extension available beyond the three-year rule, except in a narrow range of circumstances HMRC may consider on a case-by-case basis, so this deadline should be treated as firm. **Bridging finance as a common cause of this situation** Many people who trigger the surcharge in this way have used a bridging loan or similar short-term finance to complete the purchase of their new home before their old one sells, precisely because they could not otherwise afford to buy without first selling -- while bridging finance solves the immediate cash-flow problem, it does not avoid the surcharge itself, which must still be paid at completion and can only be reclaimed later once the old property is sold. **Worked example** Someone buys a new £400,000 main home in January while still owning their previous £250,000 home, which they have not yet managed to sell. They pay standard SDLT on £400,000 plus the 5% surcharge (an extra £20,000) at completion. They successfully sell their previous home 14 months later, within the three-year window, and submit a refund claim to HMRC, receiving back the £20,000 surcharge they originally paid, since the situation is now recognised as a genuine main residence replacement rather than an additional property purchase. **Practical tip** If you know you will be buying before selling, budget for the surcharge as a genuine (if hopefully temporary) cash outlay at completion, keep clear records and completion dates for both transactions, and diarise the three-year deadline so you do not miss the window to reclaim the surcharge once your previous home is eventually sold.

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