Cashier’s orders may only be used in certain specific scenarios involving property or investment-related transactions, such as applications for initial public offerings (IPO) under the CPF Investment Scheme, but they are not a valid method for ordinary voluntary account top-ups. Always use approved electronic payment methods for voluntary CPF contributions to ensure your funds are credited promptly and securely to your CPF account.
Thanks for choosing EdgeProp Buddy for your query. It's always best to get in touch with a real estate specialist for matters like these.