What is Form C/ Form C-S
The Form C/ Form C-S is a declaration form for a company to declare its income.
Please ensure that all the necessary sections in the form are correctly completed and that it gives a full and true account of the company's income.
Who needs to file Form C/ Form C-S
All companies carrying on a trade or business in Singapore need to file Form C annually to report their income. Even if the company is making losses, it is required to file the Form C.
From Year of Assessment (YA) 2012, qualifying companies will enjoy a simplified way of tax filing using Form C-S, instead of Form C. Form C-S is a shortened 3-page tax return for companies to report their income to IRAS. Find out more on Filing Form C-S .
If your company is newly incorporated, you may not need to file Form C/ Form C-S in the first year following the incorporation date. Please refer to the guide for new companies (Form C/ Form C-S filing obligations) to find out more.
If your company is dormant or has ceased business operations, please refer to the details below on what you have to do:
Who can sign on the Form C/ Form C-S
Any person authorised by the company can sign the Form C/ Form C-S. However, the director or principal officer of the company is still responsible for the company's tax affairs.
What if I do not file Form C/ Form C-S
If the company does not file Form C/ Form C-S by the due date, IRAS may issue a Notice of Assessment (NOA) based on an estimation of the company's income. If the company does not agree with IRAS’s estimated assessment, it has to object in writing within 30 days from the date of service of the NOA.