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Motivating retirement planning early and often with our fictional friends Sam, Sue, and Syndey

Saving for retirement-- and actually retiring-- is a daunting prospect for someone at the beginning of their career. But it doesn't have to be, and it won't be if you take the time and put in the effort! You can start very easily by telling your employer how much to withhold from your paycheck to be deposited in a retirement account when you’re setting up payroll at your job. There are significant financial advantages to contributing early and often to your retirement plans, even if you’re only in your 20s, and you don’t see yourself retiring until your 60s or 70s, because of the power of compounding.

Money compounds over time: that is, your gains make gains. When you invest $1,000, and you make 10% returns a year, the first year, you get 10% on your $1,000. But the second year, you don't get 10% on just $1,000-- you get 10% on $1,100. The year after that, you get 10% of $1,100; then 10% of $1,210; 10% of $1,331; and so on. You get returns rest paid on your original balance, plus the returns you've already earned. The fact that you get returns on your returns is why compounding is so powerful. 

Take the S&P500 as an example. The S&P500 is an index of the 500 largest companies in the US. When you invest in the S&P, you're not buying the stock of one single company-- you're buying tiny pieces of the stocks of all 500 in the index at once.

The index grows at a historical average of 11.88%. Sam graduated from college at 22, and every month for the next year, saves $12000 with the intent of investing it all at once when he accumulates it and never adding to it after that; when Sam retires after 45 years, his retirement account will be worth about $2.45 million at age 67. just from the compounding effects of the 11.88% returns adding on, year after year, starting from that $12,000 Sam put in at 22.

If Sam starts from nothing, seeds an account with $1000, and contributes $250 every month to it, investing in the S&P, by the time he is 67, Sam will probably have accumulated $5.389 million.

If, on the other hand, Sue decides to enjoy her 20s and not plan for the future until she’s 10 years older than Sam was when he started investing (they'll both be 32 by this point), and she also retires at 67, investing in the S&P, she will have $1.635 million if she also invests $250 a month. She would need to invest $847.05 per month—more than triple what Sam needed—to end up with as much money as Sam when they’re both 67, just for having waited 10 years.

If Sydney decides to wait even longer than Sue, to the point that Sydney only starts when she’s 42—10 years later than Sue who was herself 10 years behind Sam— Sydney will only have $484,000 when she’s 67, while both her friends will already be millionaires. To do as well as Sue would have done with $250, Sydney would have to invest $869.78 every month from 42 to 67 and to do as well as Sam would have done with $250, Sydney would have to invest $2,891.15 every month from 42 to 67.

This difference is so stark that it bears repeating: you can do the same thing by investing $250 a month in the S&P for 45 years as you could by investing $2,891.15—11 and a half times more money each month— for 20 fewer years. It’s much harder to find almost $3000 a month to invest than it is to find $250 a month, so start early and be consistent, even with a small amount like $250.

Finally, suppose that Stanley wants to invest, and he has Sam’s commitment to starting early and being consistent, but he doesn’t make as much money as Sam, Sue, or Sydney. If Stanley can find just $48.21 to spare in his budget, and he’s as consistent as Sam, with not even $50 a month, he too can be a millionaire when they all retire at 67, after he has been contributing for 45 years. At the end of those 45 years, after having contributed $48.21 every month and letting it all compound in the S&P, Stanley can celebrate his retirement with his $1,000,000 portfolio.

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