Lease duty is 0.4% of the total rent for leases of 4 years or less, and 0.4% of 4 times the average annual rent (AAR) for leases longer than 4 years or of indefinite term. AAR is annualised, so a 3-month lease is still measured against a full-year figure. Duty is rounded down to the nearest dollar, subject to a minimum of S$1. Leases with an AAR of S$1,000 or less are exempt. Rates per IRAS as at August 2026 — estimates only, verify with IRAS or your agent.