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.

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 (30KB). The access code will be sent via mail to your business' registered address within 4 working days.

CorpPass to replace EASY from Q3 2018 New!

From Q3 2018, CorpPass will replace EASY as the authorisation system.

If you are a GST-registered company or partnership, you will need to set up a CorpPass Admin account under your Unique Entity Number (UEN) to authorise staff or third-parties to access IRAS e-Services on myTax Portal as well as other government’s digital services.

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.

Role of GST CorpPass Admin
The GST CorpPass Admin has the rights to authorize himself or other GST CorpPass users for IRAS GST e-Services. There can be a maximum of 2 Admin accounts for each GST registration number at any one time. 

Type of Business  Example of Admin for GST CorpPass account
GST-registered sole-proprietors

By default, the sole-proprietor (SP) will be a GST CorpPass Admin.

The SP can appoint someone else who manages GST matters on his/her behalf to be the second GST CorpPass Admin

GST Group registrationFinance or Administrative Director of the GST Group representative member
GST Divisional registration• Finance or Administrative Director of the division
• Finance or Administrative Director of the parent company

How to create GST CorpPass Admin accounts
You may appoint your GST CorpPass Admin by submitting the relevant “Appointment of GST CorpPass Administrators” form:
GST-registered Sole-proprietor
Group GST registration
Divisional GST registration

Upon receipt of the forms, IRAS will create the GST CorpPass Admin accounts. Thereafter, the appointed admin will:
1. Receive an email notification from CorpPass
2. Be required to reset the password to activate the account

To remove or change your GST CorpPass Admin account, re-submit the above form to us at least 5 working days in advance.

You should send the completed form to us as a PDF attachment via myTax Mail. Refer to the FAQs on how to access this e-Service.

Step 2: Log into myTax Portal

Once you are authorised, you can log in to myTax Portal for "Organisation/ Business Tax Matters" using your SingPass / IRAS PIN to retrieve your organisation's GST return (e.g. GST F5). You can refer to the “Filing of GST return Video Guide” for step-by-step e-Filing instructions.

CorpPass is required for GST e-Filing from Q3 2018! New!

From Q3 2018, you will need a CorpPass account that is assigned with IRAS GST e-Services to log in to myTax Portal to e-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 (30KB) 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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