Eligible expenses must be supported by documents such as receipts or invoices and should clearly identify:
- the vendor/contractor including business address and (if applicable) their GST/HST registration number
- the type and quantity of goods purchased and/or services provided
- the dates when the goods and/or services were purchased or delivered
Invoices must by marked "paid" or be accompanied by other proof of payment such as credit card slips or cancelled cheques.