台湾の消費税・GST計算：NT$450（5.0%）
Instant 2026 calculation for Taiwan Business Tax (營業稅 / GUI VAT) on NT$450 in Taiwan (Standard Rate: 5.0%).
Add 5.0% GST (Excl → Incl)
NT$472.50
GST Added: +NT$22.50
Remove 5.0% GST (Incl → Excl)
NT$428.57
GST Extracted: -NT$21.43
Taiwan GST / Consumption Tax Breakdown on NT$450
| Net Amount (Excluding GST / 税抜) | NT$450.00 |
| + 5.0% Taiwan Business Tax (營業稅 / GUI VAT) | +NT$22.50 |
| Gross Total (Including GST / 税込) | NT$472.50 |
| Reverse Calculation: Gross Input NT$450.00 → Net Base | NT$428.57 (Tax: NT$21.43) |