Can I make a one-off donation by direct debit? GiveNow Service December 30, 2017 02:54 Updated One-off donations can only be made by credit card. Donations by direct debit are only available for regular donations. Related articles How does the donation process work? How do I update my credit card or bank details? Are all donations on GiveNow tax deductible? Can I make a regular donation? How much of my donation will go to the organisation?