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- Time is the greatest tool we have for building wealth.
- If two people save $100 a month for retirement, but one starts at 25 and the other at 35, the early saver will have nearly twice as much by age 65.
- Starting to save now, wherever you are in your timeline, is better than starting tomorrow or next week.
In personal finance, time is more than a four-letter word; it’s the simplest and most reliable tool we have for building wealth.
It may sound premature to squirrel away money for retirement in your 20s (or even earlier) — hey, it’s decades away — but a few years could make a difference of tens of thousands of dollars, or more, thanks to compound interest.
Compound interest is a form of exponential growth that rewards savers and investors, particularly those who act early. It’s the snowball effect: As you roll a snowball down a hill, it gathers more snow. Not only does the original snowball grow in size, but each additional pack also grows.
Consider the following example and the chart below. Chris and Jennifer both invest $100 a month at a 5% annual compound rate of return. Chris begins investing at age 25, putting away $100 every month until 65 and Jennifer begins saving $100 a month at age 35.
An extra 10 years of saving means that Chris has about $162,000 in his retirement plan, while Jennifer has $89,000 by the time she is 65. Chris’s balance is nearly double Jennifer’s, and he contributed only $12,000 more of his own money.
Business Insider/Andy Kiersz
Now, if Chris and Jennifer incrementally increase their monthly contribution as they grow older — perhaps bumping up their savings rate by a small percentage with every pay raise — they’ll wind up with even more money in that account at retirement.
Plus, investing in the stock market, whether directly or through a retirement account such as a 401(k), may yield a rate of return that’s even higher than 5% in some years. Historically, the stock market’s average rate of return has been about 7%, adjusting for inflation.
Saving in a tax-advantaged retirement account, such as an IRA or 401(k), can give your money an even greater boost. Those types of accounts are funded with pretax money, so your full dollar will have the opportunity to compound.
Time is a common element in the portfolios of many successful savers. TD Ameritrade asked 1,500 Americans with investable assets of at least $250,000 about their saving strategies. About 20% of this group are “supersavers” who save or invest an average of 29% of their income, while everyone else saves an average of just 6%. More than half (54%) of supersavers who invest started before age 30, the survey found, while only 40% of others did the same.
Hope isn’t lost if you missed the boat in your 20s. Starting to save now, wherever you are in your timeline, is better than starting tomorrow or next week. It takes great patience to build wealth and there’s no replacement for lost time.
This article was originally published in April 2019.
