Future Value Is the Most Important Financial Concept Nobody Teaches You

Every financial decision you make is a future value calculation in disguise. Should you pay off debt or invest? The answer depends on the future value of both options. Should you buy or rent? Future value of equity versus future value of invested savings. Should you take the higher salary or the equity offer? Future value of guaranteed income versus future value of stock options. The math is not complicated, but most people never learn it, and so they make these decisions on gut instinct instead of numbers. The future value formula For a single lump sum invested at a fixed rate: FV = PV * (1 + r)^n Where PV is present value, r is the periodic interest rate, and n is the number of periods. $10,000 invested at 8% annual return for 20 years: FV = $10,000 * (1.08)^20 = $46,610 Your money more than quadruples. The first doubling takes about 9 years (the Rule of 72: divide 72 by the interest rate to estimate doubling time). The second doubling takes another 9 years but doubles a much larger