Overview of GST e-Filing Process

GST-registered businesses are required to e-File their returns through myTax Portal and make payment to IRAS by the due date.

Step 1: Authorise users for GST e-Filing

This step is required if your business is e-Filing its GST return for the first time or when you want to authorise/re-authorise a person for e-Filing.

From now to 31 Aug 2018

Log in to e-Services Authorisation System (EASY) using your business' Access Code and your SingPass / IRAS PIN to authorise yourself, a staff or a third party (e.g. tax agent) for e-Filing. If your Access Code is misplaced or has expired, please fax/mail us your completed Access Code application form (113KB). The Access Code will be sent via mail to your business' registered address within 4 working days.

From 1 Sep 2018 New!

CorpPass will replace EASY as the authorisation system from 1 Sep 2018. 

If you are a GST-registered company or partnership, you will need to:

  1. Register a CorpPass Admin account under your Unique Entity Number (UEN);
  2. Create CorpPass User accounts for the persons transacting with IRAS; and
  3. Assign IRAS’ digital services including GST e-Filing, to the CorpPass users.

Refer to IRAS’ CorpPass webpage for step-by-step instructions. 

If you are a GST-registered sole-proprietor, or under GST Group or Divisional registration, you will need to set up a GST CorpPass Admin account under your GST registration number.

The GST CorpPass Admin account can only be used to authorise staff or third-parties to access IRAS’ GST e-Services and is different from the CorpPass Admin account which may have already been set up under your business’ UEN for other government digital services.

GST CorpPass Admin Account

Complete the relevant form below to appoint new GST CorpPass Admin or make changes to your existing GST CorpPass Admin. Send the form to IRAS as a pdf attachment via myTax Mail (click on "Email Us" after logging into myTax Portal) at least 5 working days in advance. 
- For GST-registered Sole-proprietor (appointment of second administrator only)
- For Group/Divisional GST registration

All GST-registered sole-proprietors and group/divisional GST registrants will receive an email by Aug 2018 for the creation of their GST CorpPass Admin accounts.

Refer to IRAS’ CorpPass webpage for step-by-step instructions.

Step 2: Log into myTax Portal

Once you are authorised, you can log in to myTax Portal for "Organisation/ Business Tax Matters" to retrieve your organisation's GST return (e.g. GST F5). 

From now till 31 Aug 2018

You can log in to myTax Portal using your SingPass or IRAS PIN.

From 1 Sep 2018! New!

CorpPass will be the ONLY login method. You will need a CorpPass account to log in to myTax Portal to file your GST returns.

You will no longer be able to log in using SingPass / IRAS PIN.

Step 3: e-File Your GST Return

Once logged in, complete and e-File your GST return. If you need help with completing your GST return, please refer to What to fill in each box?

Step 4: Save a copy of the acknowledge page and Pay

Save a copy of the acknowledgement page and make payment (if applicable) to IRAS by the due date.

For details on the modes and due dates for payment , please refer to the following:

Other e-Services

Besides e-Filing your GST return, other useful e-Services are also available in myTax Portal:

  • I was able to e-File my previous GST returns through myTax Portal. However I am not able to e-File my current GST return as I have problems logging in to myTax Portal . Why?

    These are the possible reasons:

    1. Your organisation's access code has been revoked as you have exceeded the number of login attempts

      Please apply for a new access code by completing the access code application form (113KB) and submitting the form to us by fax/mail.

    2. Your authorisation record for GST matters has expired

      You may have placed an end-date (i.e. "Effective To") to your authorisation record. After the end-date, you will not be able to log in to your organisation's GST matters.

      You have to delete your past record and re-authorise yourself for GST matters through e-Services Authorisation System (EASY) using the organisation's Access Code and your SingPass / IRAS PIN.

    3. You have been deregistered from GST

      If you have deregistered and are not able to log in to myTax Portal, please call our customer service officer on 1800 356 8633.


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