The tenant can also ask their agent (if applicable) to support them if they are not familiar with the process. Hello AL, you must insist that the tenant show you the stamp certificate. There is a website to verify the authenticity of the certificate. estamping.iras.gov.sg/WebForms/Home.aspx And yes, IRAS will come after you, if the stamp duty is not executed, it must be made within 14 days of your signature, in the absence of a late penalty. You use an agent to get in touch with the customer, and does the tenant have an agent? If both are the case, it is advisable to let the agents handle this part of the agreement. Hello AL, you must insist that the tenant show you the stamp certificate. There is a website to verify the authenticity of the certificate. .