Flip or Flop? Tobin Taxes in the Real Estate Market

Abstract

This paper analyzes the effects of transfer taxes targeting property flips on house prices and investment decisions. We study a 2011 reform in Taiwan which required sellers of non-owner occupied properties to pay a surcharge of up to 15% of the full sale price for properties held for two years or less. Linking the universe of personal income tax returns to transaction records, we show immediate and substantial bunching at the two-year holding period threshold, but negligible changes in overall prices. According to our missing mass estimates, the tax generated a 75% drop in one-year flips and a 40% drop in overall second home sales volume. We use shocks to housing net worth from inheritances received after decedents’ untimely deaths to show that investors with more portfolio exposure pass through the tax to buyers. While low-wealth out-of-town investors account for most of the drop in sales volume, locals and non-residents earn similar holding period returns in the pre-reform period. We use spatial and time variation in the severity of typhoon seasons to estimate a 20% share of noise trading prior to the reform. We combine our estimates of the noise trading share and change in short-term sales volume to parametrize a model of optimal financial transaction taxes. The optimal transfer tax on short-term sales is 4%, at most, which is close to the flat transfer tax rates imposed in most major real estate markets. Our results point to market segmentation and inventory effects as key constraints on the effectiveness of property flip taxes towards promoting housing affordability.