How to Reverse Calculate Manitoba Sales Tax
To back out the 12% sales tax from any Manitoba receipt or invoice, use the standard algebraic reverse formula:
For a total of $100.00 CAD:
- Total Paid: $100.00 CAD
- Pre-Tax Base: $100.00 ÷ 1.1200 = $89.29 CAD
- Total Tax Owed: $100.00 - $89.29 = $10.71 CAD
Breakdown: GST Portion (42% of tax): $4.46 CAD | PST Portion (58% of tax): $6.25 CAD
