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Checking Form C-S/ C Submission and Assessment Status

You can check the status of your company's Corporate Income Tax Return (Form C-S/ C) and tax assessment via mytax.iras.gov.sg or the Corporate Tax Integrated Phone Service. These services are available 24 hours daily.
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Before Checking Assessment Status

Prepare the following information:

  1. Your company's tax reference number; and
  2. The Year(s) of Assessment for which you are checking the assessment status.
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Checking Assessment Status Using mytax.iras.gov.sg

  1. Log in to mytax.iras.gov.sg.
  2. Select View Corporate Tax Filing Status to check the status of your assessment.
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Checking Assessment Status Using Our Phone Service

  1. Call us on 1800 356 8622 (8 a.m. - 5 p.m., Mon to Fri)
  2. Choose Option "1".

For more details, please refer to our Integrated Phone Services.

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