We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. McLaren Central Michigan Fund Development - Online Giving Form.This form is for credit card donations only. Donation receipts are important! Here's how to create donation receipts your donors (and the IRS) will love. Payment Details: Clearly state the payment method used (cash, credit card, check, etc.). Include the payment amount and currency (if not in the local currency). Contributions charged on your bank credit card are deductible in the year you make the charge. Donation receipts are important! Here's how to create donation receipts your donors (and the IRS) will love.