For income tax purposes in Singapore, a company is defined as: A business entity incorporated or registered under the Companies Act 1967 or any law enforced in Singapore. It typically includes "Pte Ltd" or "Ltd" in its name. A foreign company registered in Singapore, such as a branch of a foreign company. A foreign company incorporated or registered outside of Singapore.   However, sole-proprietorships or partnership businesses are not classified as companies for income tax purposes.