Another way to understand the impact of inflation is to determine the value of today's dollar in the future. For instance, $100 that you have today, in 15 years given a three percent inflation rate, would be worth only $64.19. Inflation over time does erode the value of money. The impact that inflation has on the time value of money is it decreases the value of a dollar over time. The time value of money is a concept that describes how the money available to you today is worth more than the same amount of money at a future date. The present value is simply the value of your money today. If you have $1,000 in the bank today then the present value is $1,000. If you kept that same $1,000 in your wallet earning no interest, then the future value would decline at the rate of inflation, making $1,000 in the future worth less than $1,000 today.