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Automate investing $50 every payday

Workers who had their savings raised automatically with each pay raise went from saving 3.5% to 13.6% of their pay.

Payday lands, you glance at your banking app over morning coffee, and by the last week of the month the money you meant to invest has quietly gone elsewhere. A small automatic transfer on each payday lets you invest first, then spend what's left. After about half an hour of setup, it runs on its own.

What it helps with

  • Not saving enough for retirement

    Workers who had their savings raised automatically with each pay raise went from saving 3.5% to 13.6% of their pay.

  • Putting off investing

    Automatic transfers move money before it can be spent, so you avoid the pull to spend now rather than save for later.

Key facts

  1. 1At one US company, retirement plan participation was 86% among workers hired under automatic enrollment, compared with about 37% under the old rules.
  2. 2Many automatically enrolled workers stayed with the default contribution rate and fund chosen for them.
  3. 3In the Save More Tomorrow study, participants' average savings rates rose from 3.5% to 13.6% over four pay raises.
  4. 4About 80% of Save More Tomorrow participants stayed in the plan through their fourth pay raise.
  5. 5Economic research on present bias describes how valuing rewards now over later ones can lead people to save less than they intend.

Why paying yourself first matters

Investing regularly, even in small amounts, gives your money years to grow. Over long periods, broad stock market index funds have tended to grow faster than savings accounts, though their value rises and falls along the way. The hard part is usually starting and staying consistent. Every payday you can choose to invest, and every payday something more tempting competes for the same money.

A common question is whether a small amount is worth the bother. The research on automatic saving points to consistency as the part that matters most, and you can raise the amount later. If you're paid every two weeks, $50 every payday is $1,300 a year before any growth. The table shows a few common amounts.

Amount per paydayPaid every two weeksPaid monthly
$10$260 a year$120 a year
$50$1,300 a year$600 a year
$100$2,600 a year$1,200 a year

How automation takes willpower out of it

Economists call the pull toward rewards now "present bias", which means valuing what you can have today more than a bigger benefit later. Economist David Laibson's work on this pattern describes how it can lead people to save less than they intend. When the choice to invest comes up fresh each payday, present bias gets a new chance to win.

An automatic transfer changes the default. The money moves before it looks spendable, so doing nothing keeps you investing. This leans on inertia, the tendency to stick with whatever is already set up. Without automation, inertia works against saving; with it, inertia keeps the plan going.

What the research found

In a well-known study at a large US company, Brigitte Madrian and Dennis Shea compared workers hired before and after the retirement plan switched to automatic enrollment. Participation was 86 percent among workers enrolled automatically, compared with about 37 percent for a similar group hired under the old sign-up rules. Many automatically enrolled workers also stayed with the default contribution rate and fund. That shows how much the starting setup shapes what people do.

Richard Thaler and Shlomo Benartzi tested Save More Tomorrow, a plan where workers agreed in advance to raise their savings rate with each future pay raise. At one manufacturing company, average savings rates among participants rose from 3.5 percent to 13.6 percent over about 40 months and four raises. Around 80 percent stayed in the plan through the fourth raise. These studies looked at workplace retirement plans in the United States, so they show how automation shapes saving behavior. They don't show how much any investment will earn, and returns are never guaranteed.

Making it stick

Set the transfer for the day your pay arrives, or the day after, so the money leaves before spending starts. If your income is irregular, pick an amount you can cover even in a slow month. Mainstream guidance suggests building a small emergency fund and paying down high-interest debt, such as credit cards, before you invest. If your situation is complicated, a fee-only financial adviser or a free nonprofit credit counselor can help you decide what comes first.

The excuse you'll likely hear yourself make is "I'll start next month", which is exactly why the whole setup fits into one sitting. On a tight month, lower the amount and leave the transfer switched on. Keeping it running, even at a few dollars, means you still invest first, then spend what's left on every payday. Over time you become someone who pays their future self before anyone else. When you get a raise, consider adding part of it to the transfer, the way Save More Tomorrow participants did. On which day does your next paycheck usually land?

Action steps

  1. 1Open a low-cost investment account. Choose a workplace retirement plan, an individual retirement account or a brokerage account that offers broad, low-fee index funds. Setting one up online usually takes 15 to 30 minutes.
  2. 2Schedule $50 to move on every payday. In your bank or investment app, create a recurring transfer of $50 timed for the day your pay arrives, and set it to buy your chosen fund automatically.
  3. 3Check it once each payday. Take a minute on payday to confirm the transfer went through. When your pay goes up, add part of the raise to the transfer.

Suggested routines

References

  • Madrian, B. C., & Shea, D. F. (2001). The power of suggestion: Inertia in 401(k) participation and savings behavior. Quarterly Journal of Economics, 116(4), 1149-1187. doi.org/10.1162/003355301753265543
  • Thaler, R. H., & Benartzi, S. (2004). Save More Tomorrow: Using behavioral economics to increase employee saving. Journal of Political Economy, 112(S1), S164-S187. doi.org/10.1086/380085
  • Laibson, D. (1997). Golden eggs and hyperbolic discounting. Quarterly Journal of Economics, 112(2), 443-477. doi.org/10.1162/003355397555253

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