Stamp duty calculators

Every rate is sourced from the Stamp Duties Act and IRAS guidance, cited on the page, and re-verified when the rules change — the same "show our work" standard as every RESglide practice question.

These are teaching calculators, not black boxes. Each result explains the value basis, rule or rate band, formula, and final arithmetic step by step.

Buyer's Stamp Duty (BSD + ABSD)

What you'll pay to buy a property in Singapore, including Additional Buyer's Stamp Duty for citizens, PRs, foreigners, and entities.

Seller's Stamp Duty (SSD)

What you'll pay to sell a property within the holding period, by regime and by year held.

Lease / rental stamp duty

Stamp duty on a tenancy agreement, from the monthly rent and lease term.