Input Tax Credits Explained

If you’re registered for GST/HST, you don’t just charge tax on what you sell — you can also claim back the GST/HST you paid on business purchases. That recovery mechanism is called an input tax credit (ITC), and for a freelancer with meaningful software, equipment or home-office costs, it can be worth more than the hassle of registering suggests.

What qualifies

ITCs apply to GST/HST you paid on purchases and expenses used in your commercial activities — the work that generates your taxable sales. Common examples:

• Business start-up costs
• Software subscriptions, equipment, and supplies
• Legal, accounting, and other professional fees
• Rent, and the business-use portion of home-office expenses
• Telephone, utilities, and internet
• The allowable (50%) portion of meals and entertainment
• Motor vehicle expenses, prorated to business use

You can’t claim ITCs on purchases that are exempt from GST/HST in the first place — basic groceries, most residential rent, and financial services, for instance — since there’s no tax there to recover.

The documentation requirement that trips people up

The CRA’s rule is specific and unforgiving: for any purchase of $30 or more, the receipt or invoice has to show the supplier’s GST/HST registration number (a 9-digit business number followed by RT and a 4-digit account identifier, e.g. 123456789RT0001). If that number is missing, you cannot claim the ITC — even if you’re confident the supplier is actually registered. This is the single most common reason ITC claims get denied on review, so it’s worth glancing at a receipt before assuming it’s good enough.

For purchases under $30, a simpler record is fine: the supplier’s name, the date, and the amount paid.

Timing

You claim ITCs in the GST/HST reporting period in which you have both the GST/HST payable and the required documentation in hand. You generally have up to four years to claim an ITC you missed in an earlier period, so a receipt you find later isn’t necessarily a lost claim.

This is general information, not tax advice, and ITC eligibility rules have exceptions beyond what’s covered here. Verify your specific purchases against the CRA source above or with an accountant.