When you buy property in England or Northern Ireland you pay Stamp Duty Land Tax (SDLT). It's overpaid surprisingly often — because solicitors frequently apply standard residential rates when a lower rate or relief actually applied. If that happened to you, HMRC may owe you thousands, and you can usually claim up to four years after completion.
The three most common overpayment grounds
- Uninhabitable at purchase — no working kitchen or bathroom, or unsafe to live in. Such properties are often chargeable at lower non-residential rates rather than residential.
- Mixed use — the property has both residential and commercial elements (e.g. a flat above a shop), which attracts lower mixed-use rates.
- Multiple dwellings — the purchase included more than one dwelling, such as a house with a self-contained annexe, potentially qualifying for Multiple Dwellings Relief.
How much could you get back?
It depends on the purchase price and the relief that applied, but SDLT overpayments are frequently in the thousands of pounds. On a mixed-use or uninhabitable reclassification the difference between residential and non-residential rates can be substantial.
How to claim
You (or your agent) submit an overpayment relief claim to HMRC with supporting evidence — photos, surveys, or floor plans. TaxAppealAgent estimates your specific refund first, then drafts the HMRC reclaim letter. Unlike firms that take 25% + VAT of your refund, you keep 100%.
Check before the window closes
Claims generally must be made within about four years of the effective date of the transaction. If you bought a property that fits any of the grounds above, check now before the window closes.