How does Singapore Corporate Tax work? A guide for new business owners

Learn about how Singapore Corporate Tax works and why is it important for new business owners to understand.

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As a new business owner in Singapore, one of the important things to understand is how corporate tax works. Corporate tax is a tax levied on the profits of companies and businesses, and it is a significant source of revenue for the government. In Singapore, companies are required to pay corporate tax on their taxable income, and failure to do so can result in fines and penalties. In this article, we will provide a detailed guide to how corporate tax works in Singapore, including the tax rates, deductions, compliance requirements, and available assistance.

Taxable income

In Singapore, corporate tax is levied on a company’s taxable income, which is the profit that the company makes after deducting allowable expenses. Allowable expenses include things like salaries, rent, and other business-related expenses that are incurred in the course of generating income. Companies are required to report their taxable income on their corporate tax return, which is due within 3 months of the end of the company’s financial year.

Tax rates

The corporate tax rate in Singapore is currently 17%. However, companies that meet certain criteria may be eligible for a partial tax exemption, which can reduce the effective tax rate. For example, companies that have annual profits of less than SGD 300,000 may be eligible for a partial tax exemption of 75%. This means that they would only be required to pay tax on 25% of their taxable income, rather than the full 100%.


In addition to partial tax exemptions, companies in Singapore may also be eligible for other deductions, which can further reduce their tax liability. For example, companies can claim deductions for charitable donations, research and development expenses, and other business-related expenses. These deductions can help to lower the company’s taxable income and ultimately reduce the amount of corporate tax that the company is required to pay.

Compliance Requirements

It is important for companies in Singapore to understand and comply with the various corporate tax requirements. This includes filing a corporate tax return on time, paying the tax that is due, and keeping accurate and complete financial records. Companies that fail to comply with these requirements may be subject to fines and penalties, as well as a higher risk of audits and other enforcement actions.

Available Assistance

If you are a new business owner in Singapore and have questions about corporate tax, there are several resources available to help. The Inland Revenue Authority of Singapore (IRAS) is the government agency responsible for administering corporate tax in Singapore, and they offer a range of resources and assistance for businesses, including guidance on tax rates, deductions, and compliance requirements. In addition, professional accounting firms and tax advisors can provide expert guidance and assistance to help businesses navigate the corporate tax system.


Corporate tax is an important aspect of doing business in Singapore, and it is important for new business owners to understand how it works. By understanding the taxable income, tax rates, deductions, compliance requirements, and available assistance, businesses can ensure that they are paying the correct amount of tax and meeting their regulatory obligations. By staying compliant and taking advantage of available deductions, businesses can also reduce their tax liability and improve their overall financial performance.