Planned Giving Calculators Need to make a planned giving calculation? Start here. We even have all gift plans explained! Go to Calculators Donor / Advisor Calculators Advisors influence your donors’ charitable giving decisions. These “personal” calculators will help everyone reach their goals. Make A Calculation Future Bequest Value Calculator How much is the future value of a bequest? This “simple” calculator does the complicated math for you. Make A Calculation IRS Discount Rate: June 2019, 2.8% Share with your board: The importance of planned giving from a financial perspective, and The importance of planned giving from a strategic perspective.