Purpose: The research examines whether REITs returns on the different days of the week differ from each other. Design/methodology/approach: It uses EPRA/NAREIT UK Index daily closing values (GBP) and its two sub-indices FTSE EPRA/NAREIT UK REITs and Non-REITs as dependent variables. It employs Kruskal-Wallis (KW) tests and dummyvariable regression to test the hypothesis. Findings: The overall findings provide evidence that return anomalies exist in the UK REITs. Practical implications: Thought significant, the absolute returns differences are modest for investors to gain superior returns in UK REITs. However, by recognising the day-of-the-week effect, investors can buy/sell UK REITs more effectively.