How to Calculate HST in Ontario: Complete Guide
Ontario HST Basics
Ontario uses HST (Harmonized Sales Tax) at a rate of 13%. This is a combined federal and provincial sales tax that applies to most goods and services sold in Ontario.
HST Formula for Ontario
Amount × 0.13 = HST Amount
Amount + HST Amount = Total Including Tax
Step-by-Step Calculation
Example 1: Simple Service
- Service amount: $100
- HST calculation: $100 × 0.13 = $13
- Total with HST: $100 + $13 = $113
Example 2: Multiple Services
- Service 1: $200
- Service 2: $300
- Subtotal: $500
- HST: $500 × 0.13 = $65
- Total: $565
Common HST Mistakes to Avoid
- Forgetting to charge HST altogether
- Using the wrong percentage
- Not registering when required
- Not tracking HST properly
Quick HST Calculator
Tired of manual calculations? Use our free HST calculator for instant results.
Automatic Calculation in Invoices
Our invoice generator automatically calculates HST for Ontario when you select the province. No manual math needed!
Conclusion
HST in Ontario is straightforward once you understand the 13% rate. Always ensure you're charging the correct amount and keeping good records for tax purposes.