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Definition

What’s a CSN?

Your CSN is a unique identifier

The CSN is used by employers to transact with the CPF Board. This includes making CPF payments and making requests relating to employer matters. 

 

A CSN consists of an Unique Entity Number (UEN) or NRIC/FIN (if you’re trading under your own name) and CPF Payment Code.

The CPF Payment Code identifies the type of payment made

The CPF Payment Code in your CSN identifies the different types of payments made by employers to the Board such as mandatory CPF contributions, Voluntary Contributions, and MediSave contributions under the Additional MediSave Contribution Scheme. You’ll need to apply for a different CSN for each type of payment that you’re making.

Application

Are you a UEN-registered entity or individual trading under your own name?

UEN-registered entity

Quick Guide to start your CPF Contribution Journey as an Employer

Find out the steps from applying for a CSN to setting up your CPF EZPay. 

Apply for CSN and set up CPF EZPay quick guide (PDF, 1.4MB)
Applying for UEN and CSN together via ACRA Bizfile+ Portal

If you don’t have a UEN and are applying for one from Accounting and Corporate Regulatory Authority (ACRA) , you can use the BizFile+ Portal to do so, and apply for a CSN at the same time.

Apply UEN
Applying for CSN if you already have a UEN

If you already have an existing UEN and your authorised users are granted access to 'CPF Services for Employers and Business Partners' e-Service in Corppass portal, they can proceed to apply for a CSN.

Apply CSN now Step-by-step guide (PDF, 1.1MB)
Guide to set up and assign CPF e-Services in Corppass portal

You will need to set up the “CPF SERVICES FOR EMPLOYERS AND BUSINESS PARTNERS” e-Service in the Corppass portal and assign your authorised users before they can access CPF e-Services.

Step-by-step guide (PDF, 1.1MB)

Individual trading under your own name

Applying for a CSN

You’re considered to be trading under your own name if you’re an individual hiring Singapore Citizen or Singapore Permanent Resident employees in your personal capacity and do not require a UEN. 

 

For example, a hawker hiring a hawker assistant, or a person who hires a personal driver, gardener, or domestic worker.

 

Application for a CSN will be done on our CPF website using your Singpass.

Apply CSN now Step-by-step guide (PDF, 1.1MB)

After Application

You may submit your CPF contributions via the following methods:

 

  • Submitting Your CPF Contributions via CPF EZPay Mobile

If your CSN application was submitted before 5pm, you can submit your CPF contributions via CPF EZPay Mobile the next day.

 

  • Submitting Your CPF Contributions via CPF EZPay

If your CSN application was submitted before 5pm, you can submit your CPF contributions via CPF EZPay two days later.

 

 

Note: For UEN-registered entity, please be reminded to perform a one-time setup at Corppass portal before you can login to CPF EZPay.

 

For individuals trading under own name, you would have set up your access control for System Administrator when applying for your new CSN.

FAQs

Common Questions