Singapore 9% GST & 10% Service Charge ("++" Bill) Calculator
Calculate Singapore restaurant "++" dining bills (10% service charge + 9% GST = 19.9% extra), bill splitting per pax, and tourist eTRS GST refunds.
Calculate Singapore restaurant "++" dining bills (10% service charge + 9% GST = 19.9% extra), bill splitting per pax, and tourist eTRS GST refunds.
Calculate Singapore restaurant "++" dining bills (10% service charge + 9% GST = 19.9% extra), bill splitting per pax, and tourist eTRS GST refunds. Calculate exact, penny-accurate projections compliant with 2026 CPFB • IRAS • Monetary Authority of Singapore (MAS) • HDB standards using Calconova's deterministic IEEE-754 (Decimal.js) calculation engine with instant breakdowns.
Final\ Bill = Base \times (1 + 10\%_{Service}) \times (1 + 9\%_{GST}) = Base \times 1.199 \\
Service\ Charge = Base \times 10\% \\
GST = (Base + Service\ Charge) \times 9\% \\
Tourist\ eTRS\ Refund = Spend \times \frac{9}{109} - Handling\ FeeThe famous "++" in Singapore dining denotes a 10% service charge followed by 9% GST applied on the subtotal (compound formula Base × 1.10 × 1.09 = Base × 1.199, exactly 19.9% extra!). Tourists spending S$100+ qualify for eTRS GST refunds at Changi Airport.
All calculations, amortizations, and scenario projections displayed on this page are strictly for informational and educational purposes. Nothing herein constitutes investment, financial, tax, or legal advice. Actual CPF interest rates, ABSD criteria, COE prices, and bank mortgage rates may vary. Calconova explicitly disclaims all liability for any decisions taken based upon these calculations. Consult a MAS-licensed financial adviser or IRAS/CPF officer prior to executing financial commitments.
Because GST is levied on the service charge as well! A $100 dish attracts $10 (10% service charge), making the subtotal $110. The 9% GST is calculated on $110, which equals $9.90. The total is $119.90 (a 19.9% effective increase).
No. Hawker stalls and traditional coffee shops display nett prices with zero service charge. The 10% service charge applies only to full-service dine-in restaurants, cafes, bars, and hotels providing table service.
Spend S$100 or more (combine up to 3 same-day receipts from the same merchant), show your passport at purchase. At Changi Airport before check-in, scan your passport at the eTRS self-help kiosks to receive your refund via credit card or cash.
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