When you donate, the DGR will usually issue you with a receipt, but they don't have to. How much in donations can I claim on tax without receipts?You can only claim a tax deduction for gifts or donations to organisations which are deductible gift recipients (DGRs). Charitable contributions are generally taxdeductible if you itemize. How much can I claim without receipts? To submit your in-kind request, please visit our donation request form. For sponsorship or fundraising requests, please visit our sponsorship form. Learn how to lower your income tax while supporting charity. Discover essential tips for tax season and try our donation tax calculator.