A version of this article first appeared in CNBC's Inside Wealth newsletter with Robert Frank, a weekly guide to the high-net-worth investor and consumer. Sign up to receive future editions, straight to your inbox. Strong stock market returns and tax reform gave a boost to charitable giving in 2025, according to DAFgiving360, one of the largest administrators of donor-advised funds . The organization reported that its donors granted a record $9.9 billion to charities in 2025, an increase of $2.