What corporate taxes in Singapore a new business with foreign owners need to pay close attention ?

The current effective corporate tax rate in Singapore is 17%. However , various tax credits and incentives will put the first 200K SGD of taxable incomes at a rate of 8.5%

The current GST ( Good & Service Tax) rate is 7%. GST is Valued Added Tax in Singapore. All companies with expected revenues of 1 million SGD is required to register for GST tax with IRS to collect and/or claim GST from sales, purchases or services performed. 

Witholding tax is the required tax witheld and payable to IRS when a Singapore company pays a foreign entity or persons in exchange for work or services performed. The witholding tax rate is varied depending on the type of services or work