Can large charitable donation claims trigger a CRA audit?

Yes. Charitable donation claims that are disproportionately large relative to income are one of CRA's recognized audit triggers. The agency uses statistical analysis to identify donation claims that fall outside the norm for a given income bracket. A legitimate donation is deductible if it is made to a registered charity and you hold a valid official donation receipt; however, claims that appear inflated or implausible will attract scrutiny.

CRA has also run enforcement programs targeting abusive donation tax shelters — arrangements that promised tax deductions far exceeding the amount actually donated. Participation in such arrangements, even when promoted as legitimate, has resulted in audits, disallowed deductions, and penalties. Courts have generally upheld CRA's position in these cases.

For ordinary charitable giving, the practical defence is simple: keep your official donation receipts, which must show the charity's registration number, the date, and the value of the gift. For larger donations of property (rather than cash), the valuation is critical and CRA scrutinizes it carefully. Donated property must be valued at its fair market value, and an independent appraisal is advisable for significant non-cash gifts.