CPFB | How to apply for a CPF Submission Number as a platform operator

Making CPF contributions

How to apply for a CPF Submission Number as a platform operator

All platform operators need CPF Submission Numbers (CSNs) to submit CPF contributions for their platform workers. Learn what a CSN is and how can you apply for it.

Platform operator CSN

What is a platform operator CSN?

The platform operator CSN is a unique identifier used by platform operators to transact with CPF Board.
This includes making CPF payments for platform workers and submitting requests on platform operator matters.
A CSN consists of a Unique Entity Number (UEN) and CPF payment code.
The CPF payment code identifies the type of payment made.
Only platform operators need to have a platform operator CSN.
If you are unsure whether you meet the definition of a platform operator, you may use MOM's self-assessment checklist.

Request for your CSN application form via write-to-us

How many CSNs should a platform operator have?

Every platform operator requires two CSNs

One CSN is used to make CPF contributions for platform workers born on 1 Jan 1995 or later and those born before 1 Jan 1995 who have opted in. This CSN will contain “PWA” in its payment code.

One CSN is used to make CPF contributions for platform workers born before 1 Jan 1995 who have not opted in. This CSN will contain “PWM” in its payment code.

How to apply

Steps to apply for the platform operator CSN

UEN-registered entity

Guide to start your CPF Contribution Journey as a platform operator

Refer the platform operators' onboarding package for detailed instructions on applying for platform operator CSNs, setting up CPF EZPay with Corppass, querying platform workers' opt-in status, and configuring direct debit authorisation.

Applying for UEN

If you are a new platform operator without an UEN and are applying for one from Accounting and Corporate Regulatory Authority (ACRA), you can use the BizFile + Portal to do so.

Apply UEN

Applying for platform operator 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, you can request for a CSN application form via write-to-us.

Request for a CSN application form via write-to-us

After submitting the application for the platform operator CSNs

Once CPF Board provides you with the two new CSNs, you need to perform a one-time setup at Corppass portal before you can login to CPF EZPay using your new CSNs.

FAQs

Common questions

What is CPF Submission Number (CSN) and how do I use it to submit for my platform workers’ CPF contributions?

How do I obtain my CPF Submission Number (CSN) as a new platform operator? How long does it take?

Do I need to apply for a new CPF Submission Number (CSN) if my platform is a subsidiary company with a different Unique Entity Number (UEN) from the parent company?

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How many CSNs should a platform operator have?

UEN-registered entity