New employers need a CPF Submission Number (CSN) to transact with the Board, e.g. making CPF Payments. You can apply for your CPF Submission Number (CSN) via our Online Application service. Please submit your application at least 2 weeks before the due date of your first CPF contribution. You will receive a welcome package together with your CPF Submission Number after we have processed your application. You will also receive your Payment Advice (Form CPF/91) to make your first CPF contribution via cheque. However, you are strongly encouraged to sign up for CPF e-Submission when making your first CPF contribution. To do so, please submit the following documents at least 7 weeks before the due date of your first CPF contribution : 1. CPF e-Submission Registration Form 2. Application for Interbank GIRO Form (if applicable) For more information on CPF e-Submission, click here. For your information, a processing fee of $7 per employee per month is charged for employers who submit CPF contribution details for 11 and more employees using the hardcopy Payment Advice (i.e. not on CPF e-Submission). This processing fee will be imposed on smaller employers in time to come. Changing the legal status of your existing entity Employers who are changing the legal status of their entities are required to re-register with the Board. Please re-register using our Online Application service. You will receive your new CPF Submission Number after we have processed your application. For enquiries, please call CPF Call Centre at 1800-227 1188 or email us at employer-accounts@cpf.gov.sg.