シンガポールの消費税・GST計算：S$300（9.0%）
Instant 2026 calculation for Singapore Goods and Services Tax (IRAS GST) on S$300 in Singapore (Standard Rate: 9.0%).
Add 9.0% GST (Excl → Incl)
S$327.00
GST Added: +S$27.00
Remove 9.0% GST (Incl → Excl)
S$275.23
GST Extracted: -S$24.77
Singapore GST / Consumption Tax Breakdown on S$300
| Net Amount (Excluding GST / 税抜) | S$300.00 |
| + 9.0% Singapore Goods and Services Tax (IRAS GST) | +S$27.00 |
| Gross Total (Including GST / 税込) | S$327.00 |
| Reverse Calculation: Gross Input S$300.00 → Net Base | S$275.23 (Tax: S$24.77) |