SDLT Refund Checker UK

Yes, in several circumstances. The most common is reclaiming the 3% additional dwelling surcharge when you sell your previous main residence within 3 years. You may also be eligible if you overpaid due to an uninhabitable property, multiple dwellings, or mixed-use classification.

For the 3% surcharge refund after selling your previous home, you have 12 months from the sale date or 12 months from the SDLT filing date (whichever is later). For general overpayment relief, the deadline is 4 years from the effective date of the transaction.

You can claim online by amending your SDLT return through HMRC, or by writing to HMRC Birmingham Stamp Office. You will need your SDLT unique transaction reference number (UTRN), proof of the sale of your previous property, and confirmation of completion dates.

A property is considered uninhabitable if it lacks essential facilities such as a working kitchen, bathroom, or heating, or has severe structural problems. Merely being in poor condition or needing redecoration is not enough. HMRC applies a strict test and you may need a surveyor report.

Multiple Dwellings Relief (MDR) allowed buyers purchasing two or more dwellings in a single transaction to pay SDLT based on the average price per dwelling. This could significantly reduce the tax bill. MDR was abolished for transactions completing on or after 1 June 2024.

HMRC typically processes SDLT refund claims within 15 working days for straightforward cases. More complex claims (e.g., uninhabitable property, mixed-use) may take 3-6 months if HMRC opens an enquiry. You can check progress by contacting HMRC Stamp Taxes helpline.

For straightforward 3% surcharge refunds, you can often claim yourself through HMRC online services. For more complex claims such as uninhabitable property or mixed-use reclassification, professional advice from a tax adviser or specialist solicitor is strongly recommended.

Mixed-use SDLT applies when a property includes both residential and non-residential elements. The rates are significantly lower: 0% up to £150,000, 2% up to £250,000, and 5% above that. Crucially, the 3% additional dwelling surcharge does not apply to mixed-use transactions.

If you and your partner separate and one of you buys a new property while still jointly owning the former home, the 3% surcharge may apply. However, if the previous property is sold within 3 years, you can claim a refund. Court orders transferring property between separating couples are generally exempt from SDLT.

HMRC pays repayment interest on SDLT refunds from the date of the original overpayment to the date of the refund. The rate is set by HMRC and is typically quite low (currently 0.5% above the Bank of England base rate), but it does accumulate on delayed refunds.