The Charity Commission has published guidance on Accepting, refusing and returning donations to your charity.
There can be occasions when, by law, trustees must refuse or return a donation. In other circumstances, trustees may decide it is in their charity’s best interest to do so. These decisions are often significant for a charity, and trustees must always carefully balance all factors that are relevant to their charity’s circumstances. In a parish context, this generally means that members of the PCC, as trustees, will need to consider and decide on the appropriate response to a donation if the need should arise.
You should take advice if you are unsure about your powers to accept, refuse or return a donation.