CashBackCat.com Completes Study of Compounded Cash Back Cash Back can Put Child Through College or Buy That Condo in Florida. Las Vegas, Nevada, November 05, 2014 -- CashBackCat.com has completed a Special Report studying the cash back earned by shoppers. Instead of the cash back being spent, what happens if the cash back was saved and earned compounded interest? How important is getting cash back on every purchase you make and keeping it, instead of spending it, sock it away for your child’s college education or for your retirement. Here are the facts, the numbers don’t lie. These figures are derived from customer behavior and statistics from CashBackCat.com, a cash back and deals website. If you are a periodic, moderate online shopper and you earn $100 a year in cash back rebates each year and you invest that $100 each year for the next 20 years you will have earned $5, 017.03 (assuming your investment was in the S&P 500 (Standard & Poors 500), the stock market benchmark, which earned 7.4% per year on average over the last 10 years.) If you are a regular online shopper and you earn $500 a year in cash back rebates and you invested your $500 each year over the next 20 years you will have earned $25,085.16 (again, using the S&P500 average annual return rate of 7.4%) If you are an active shopper, you would earn roughly $1,000 a year in cash back rebates. If you invested those each year for 20 years you will have earned $50,170.33, providing you received the rate of return of 7.4%. Want to retire with a Free Gift of $370,878.61? All you have to do is start at 25 years old investing your $1,000 a year in cash back, each and every year, then at 70 years old you will have a windfall of almost $400,000. For some of you 70 sounds like a long way away, but you will see how fast the years go by after 40. The great thing is, is that anybody can do this, it’s free money being invested with the super power of