I have a buy to let property I’ve owned for many years and am now looking to buy a house to live in with my family. I put the buy to let on the market to avoid additional stamp duty levies altogether but this property has remained on the market for a long time and in this time we’ve found the ideal property. I’ve never had a “main residence” and the buy to let is the property I have ever owned. Can I not claim a refund on the additional stamp duty if, for example, within 6 months of buying our new and only main residence the buy to let gets sold?