If you have underpaid CPF contributions, you may pay the difference using a blank form in CPF EZPay for the affected employee(s) in the affected month(s). Declare the full wages earned for the month and the CPF shortfall amount.
Please refer to Section 3 of the CPF EZPay user guide (PDF, 2.8MB) to do so.
If you have overpaid CPF contributions or paid for the wrong employee(s), you may apply for a refund within one year from the date of payment, subject to the availability of funds in the member's CPF account.
Additionally, you’ll need to inform the employee(s) affected by the refund. You may submit the application for "Refund of CPF Contributions Paid” online.