At our latest research seminar (MRSS), Professor Yiting Deng from the UCL School of Management presented research on how the 2020–2021 UK Stamp Duty Land Tax Holiday affected housing market behavior and subsequent resale outcomes. Using property-level listing data from the UK’s largest online housing platform combined with administrative transaction records, and applying propensity score matching with a difference-in-differences design, she examined how properties exposed to the tax cut compared with otherwise similar properties that were already exempt. The findings showed that the tax holiday tightened market conditions in the short run: properties eligible for the tax relief sold at higher prices, transacted more quickly, and were more likely to sell, with price effects concentrated in more deprived areas, where buyers face tighter credit constraints and are more sensitive to upfront transaction costs.

What I found particularly interesting was that the tax relief did not seem to benefit buyers (in the way it was often presented). Instead, the talk highlighted how the policy stimulated demand in ways that made it easier for sellers to sell their properties at higher prices, while these short-run gains did not persist for buyers. Properties purchased during the holiday experienced weaker resale price growth than comparable exempt properties, indicating that buyers paid a temporary premium that reduced longer-run returns. Overall, the talk offered a thoughtful and policy-relevant perspective on how temporary transaction tax relief can stimulate market activity. Rather than functioning as a relief for buyers, however, the policy appears to have disproportionately benefited sellers, who were able to leverage increased demand. The research points to an important consideration to prevent unintended distributional effects in future policy design: who is meant to benefit and who actually benefits from such tax reliefs.