Charitable gift annuity donors (annuitants) receive payments for the rest of their lives. The size of your payment is determined by many factors, including your age(s) when you set up the charitable gift annuity. (For example, younger donors will typically receive more payments but they’ll be smaller.) The amount is fixed and will never fluctuate or adjust for inflation. But it’s also backed by the charity’s entire assets, not just your gift, and will continue for the lives of the donors no matter how well or poorly the investments of the annuity perform.