Tax calculators for Singapore
Singapore calculators for GST. Check your amount, see the breakdown and consult the official sources.
Available calculators
Choose a local GST price or an overseas-purchase scenario
A local price before or after GST
The GST tool adds tax to an exclusive amount or recovers the exclusive price from an inclusive total. Match that setting to the quotation before entering the number. Reversing an inclusive price is a division, not a subtraction of the same percentage from the total. The breakdown helps compare prices on the same basis and keep the supplier’s underlying charge visible.
Imports and low-value overseas purchases
The import and overseas-purchase modes represent different collection scenarios. Identify what the seller or platform has already charged before estimating another amount. A GST result is not automatically the complete landed cost: transport, duties or handling may require separate treatment depending on the form’s scope. Check the linked references for the transaction conditions rather than treating the word overseas as sufficient to choose a mode.
Tool-selection guide checked: . Each calculator states its own fiscal period, sources and review date.