“Taxable Turnover” is the total value of all taxable supplies made in Singapore (excluding Goods & Services Tax (GST)) in the course of furtherance of business. This includes the value of all standard-rated (GST at prevailing rates) and zero-rated (GST at 0%) supplies but it excludes exempt supplies, out-of-scope supplies and the sale of capital assets.
For the purpose of determining your liability for GST registration, the value of exempt supplies that are international services under GST Act should also be excluded from your total taxable supplies.