HST Calculator Ontario 2026
Add or remove 13% Ontario HST instantly. Includes reverse HST calculator, filing deadlines, ITC rules and a full quick-reference table.
Ontario HST Calculator — 13% Rate 2026
Need help with HST registration, filing or CRA compliance? Our licensed CPA team handles it all — virtually across Ontario.
HST Filing Services →Ontario HST Quick Reference Table 2026
13% HST applies uniformly across all Ontario cities — Toronto, Ottawa, Mississauga, Hamilton, Brampton, London and beyond.
| Pre-Tax Amount | Federal GST (5%) | Ontario PST (8%) | HST Total (13%) | Total Amount |
|---|---|---|---|---|
| $50.00 | $2.50 | $4.00 | $6.50 | $56.50 |
| $100.00 | $5.00 | $8.00 | $13.00 | $113.00 |
| $250.00 | $12.50 | $20.00 | $32.50 | $282.50 |
| $500.00 | $25.00 | $40.00 | $65.00 | $565.00 |
| $1,000.00 | $50.00 | $80.00 | $130.00 | $1,130.00 |
| $2,500.00 | $125.00 | $200.00 | $325.00 | $2,825.00 |
| $5,000.00 | $250.00 | $400.00 | $650.00 | $5,650.00 |
| $10,000.00 | $500.00 | $800.00 | $1,300.00 | $11,300.00 |
| $25,000.00 | $1,250.00 | $2,000.00 | $3,250.00 | $28,250.00 |
| $50,000.00 | $2,500.00 | $4,000.00 | $6,500.00 | $56,500.00 |
Ontario HST Calculation Formulas
Two formulas every Ontario business owner needs — adding HST to a price and removing HST from a total.
Adding HST to a Price
Total = Amount × 1.13
HST = $2,400 × 0.13 = $312.00
Total = $2,400 × 1.13 = $2,712.00
Breakdown: $120 GST + $192 PST = $312 HST
Removing HST from a Total (Reverse)
HST = Total × 0.115044
Pre-tax = $2,712 ÷ 1.13 = $2,400.00
HST = $2,712 × 0.115044 = $312.00
Shortcut: multiply total by 0.115044 for HST portion.
Key HST Rules for Ontario Businesses
What every Ontario business owner needs to know about registration, filing, and recovering HST costs.
HST Registration Threshold
Ontario businesses with taxable revenues exceeding $30,000 in any single calendar quarter or over four consecutive quarters must register for HST with CRA and begin collecting 13% on taxable sales.
Voluntary registration is available under $30,000 — beneficial during startup years when HST paid on expenses can be recovered through Input Tax Credits.
HST Filing Deadlines Ontario
| Revenue | Frequency | Due |
|---|---|---|
| Under $1.5M | Annual | 3 months after year-end |
| $1.5M–$6M | Quarterly | 1 month after quarter |
| Over $6M | Monthly | 1 month after month-end |
Input Tax Credits (ITCs)
HST-registered Ontario businesses can recover the 13% HST paid on eligible business expenses by claiming ITCs on their HST return — reducing the net amount remitted to CRA.
- Office rent and utilities
- Equipment and technology
- Professional and legal fees
- Vehicle expenses (business use)
- Advertising and marketing
- Business insurance
What Is HST-Exempt in Ontario?
Not all goods and services attract the full 13% Ontario HST. Some are zero-rated, some are exempt, and some qualify for a Point-of-Sale rebate.
- Basic groceries and food
- Prescription drugs
- Most medical devices
- International exports
- Agricultural products
- Residential rent
- Most health care services
- Most childcare services
- Most educational services
- Used residential housing
- Children's clothing & footwear
- Children's car seats
- Diapers
- Feminine hygiene products
- Print books and newspapers
Ontario HST Examples by Industry
Real-world HST calculations for common Ontario business scenarios.
IT Consultant Invoice
A Toronto-based IT consultant invoices a client $8,000 for a software project. HST of 13% is added and collected from the client, then remitted to CRA minus any ITCs on business expenses.
Contractor Invoice
A Hamilton renovation contractor invoices $22,000 for a commercial fit-out. HST applies in full. The contractor can claim ITCs on materials, equipment rentals and subcontractor costs.
Mixed-Rate Retail Sale
A Mississauga retailer sells $300 in adult clothing (13% HST) and $150 in children's clothing (5% only — POS rebate applies). Two separate HST calculations apply on the same receipt.
Ontario HST Frequently Asked Questions
Answers to the most common Ontario HST questions from business owners across Ontario.
Need Help with HST Filing or CRA Compliance?
Gondaliya CPA handles HST registration, filing, audit representation and ITCs for Ontario businesses — virtually across Ontario and Canada. Flat-fee pricing, 900+ Google reviews.
Related CPA Resources
Helpful guides and services from Gondaliya CPA for Ontario businesses.