Singapore GST estimator for a watch
Enter a value you already have in Singapore dollars. The estimator applies the GST relief rules written on the buying guide: 9% GST, no customs duty on watches, traveller relief of S$500 or S$100, and the S$400 postal threshold. It does not convert yen, dollars, or euros, and it does not model a Japan consumption-tax refund.
Estimate GST
The preset is Singapore Customs’ published example: S$2,000 of new goods after 48 hours or more → GST S$135. Replace it with your own SGD value.
Which value to type
- Carried in. Convert the price on your receipt with the rate on that receipt or your card statement. Call that number V. A watch you buy overseas counts as new even if you wear it on the trip.
- Shipped. Use the CIF value in SGD (cost, insurance, and freight) when you have it. At S$400 CIF or under, border relief can apply, and a GST-registered overseas seller can still charge 9% at checkout.
- Bought in Singapore. Read the invoice total. This tool will not add 9% on top of a price that already includes GST.
Worked example (the Customs figure)
S$2,000 of new goods, away 48 hours or more: relief S$500, GST on S$1,500, GST = S$135, duty = S$0. The same S$2,000 under 48 hours uses a S$100 relief, so GST = 9% × S$1,900 = S$171. A pass holder on the same value pays 9% × S$2,000 = S$180.
Declare and pay through the Customs@SG web app or the Red Channel. The full sourcing, Japan tax-free timing, and pre-owned invoice notes stay on the buying guide.