HST Collected vs ITCs in Ontario (Simple Example + Common Mistakes)
Published October 23, 2026 · By Vijay Goswami
Quick check
Are you claiming the right ITCs?
Quick Answer
- HST collected = tax you charge customers and hold for CRA
- ITCs = HST you paid on business expenses youre allowed to claim back
- Net tax (what you remit/refund) = HST collected ITCs (plus/minus adjustments)
- You can only claim ITCs for commercial activity and with proper invoices
- Mixing personal + business expenses is the #1 reason CRA denies ITCs
Key takeaway: Most Ontario businesses dont pay HST on sales they collect it for CRA, then subtract eligible Input Tax Credits (ITCs). The difference is what you remit (or get refunded).
What HST collected actually means (Ontario)
When you charge HST to your customer, that money isnt your revenue. Youre collecting it on CRAs behalf.
- If you invoice a client $1,000 + HST (13%), you collect $130 HST
- You should track that $130 separately in your bookkeeping (its a liability)
What ITCs are (and why they matter)
Input Tax Credits (ITCs) are how CRA lets registered businesses recover the HST they paid on eligible business expenses.
Plain English:
- You collected HST on sales
- You paid HST on business costs
- CRA lets you subtract eligible HST paid (ITCs) from what you owe
Simple example HST collected vs ITCs (numbers)
Lets say this is your quarter in Ontario:
Sales (you charged customers)
- Sales: $20,000
- HST collected (13%): $2,600
Expenses (you paid suppliers)
- Software subscriptions: $1,000 + HST = HST paid $130
- Advertising: $2,000 + HST = HST paid $260
- Office supplies: $500 + HST = HST paid $65
Total ITCs: $130 + $260 + $65 = $455
Net HST you remit
Net tax = HST collected ITCs
$2,600 $455 = $2,145 to remit to CRA (for that filing period)
What CRA commonly denies (so your ITCs dont get reversed)
CRA usually denies ITCs for one of these reasons:
1) No proper invoice / missing details
For ITCs, you need supplier documentation that supports the claim (and the required info depending on the amount). If your receipt is missing key details, CRA can deny the ITC even if the expense is real.
2) Personal or mixed-use expenses
Examples that get messy fast:
- Cell phone used 50/50 personal and business
- Vehicle expenses without a logbook
- Meals/entertainment without business purpose notes
You may still claim a reasonable business portion, but you need support.
3) Not actually HST (or not 13%)
Common issues:
- Out-of-province supplier charging a different tax setup
- Zero-rated items (0% GST/HST) where theres no ITC to claim
- Vendor didnt charge HST at all (then theres nothing to claim)
4) Youre not registered (or not registered for that period)
If you werent registered during the period, ITC timing can become an issue. Registration date matters.
Practical bookkeeping setup (so filings are painless)
If you want clean GST/HST filings, set this up:
- Separate accounts for:
- HST Collected
- HST Paid (ITCs)
- HST Owing/Refundable (Net)
- Reconcile monthly (even if you file quarterly/annually)
- Keep receipts organized by month and vendor
- Dont code personal expenses into business accounts for now
Quick self-check before you file
Ask these 5 questions:
- Did I charge HST on all taxable sales in Ontario?
- Did I accidentally charge HST on exempt/zero-rated items?
- Do I have invoices for the ITCs Im claiming?
- Are any expenses mixed-use (phone, vehicle, home office)?
- Do my HST accounts reconcile to bank/credit card activity?
FAQ
1) Is HST collected considered income in Ontario?
No. HST collected is money you hold for CRA. Your income is the amount before HST (in most cases).
2) Can I claim ITCs on anything I buy for my business?
Not automatically. The expense must relate to your commercial activity and you need proper documentation. Mixed-use needs a reasonable allocation.
3) What if my ITCs are higher than my HST collected?
You may be in a refund position for that period (depending on your situation and adjustments). CRA may review/supporting docs.
4) Do I claim ITCs based on invoice date or payment date?
It depends on your reporting method and timing rules. Consistency matters this is a common cleanup item in bookkeeping.
5) Whats the biggest ITC mistake you see in small businesses?
Mixing personal and business spending (especially vehicle/phone/meals) without support, then claiming full ITCs.
Internal links
- Related blog post: GST vs HST in Ontario (Whats the Difference?) (read)
- Services page: https://www.ataxexpert.com/services
- Pillar post: GST/HST for Ontario Small Businesses: Registration, ITCs, Filing & Deadlines (coming soon)
Want this set up cleanly (bookkeeping + GST/HST filing + CRA-proof ITCs)?
Book a call and well make sure your HST collected and ITCs are tracked properly.
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