What Is Dollar-Cost Averaging? How It Works and When To Use It

moreimages / Shutterstock.com

Commitment to Our Readers

GOBankingRates' editorial team is committed to bringing you unbiased reviews and information. We use data-driven methodologies to evaluate financial products and services - our reviews and ratings are not influenced by advertisers. You can read more about our editorial guidelines and our products and services review methodology.

20 Years
Helping You Live Richer

Reviewed
by Experts

Trusted by
Millions of Readers

Dollar-cost averaging is an investing strategy where you invest the same amount of money on a regular schedule, no matter what the market is doing. The idea is simple: you buy more shares when prices are low and fewer shares when prices are high, helping reduce the risk of investing all your money at once at the wrong time.

It can be a smart strategy for beginners, people with steady income and investors looking to avoid emotional market timing. But it doesn’t guarantee gains, and it can underperform lump-sum investing when markets trend up over time.

What Is Dollar-Cost Averaging?

Dollar-cost averaging means investing equal amounts of money at regular intervals regardless of whether prices are up or down. By investing the same dollar amount each time, you buy more of an investment when its price is low and less when its price is high.

Dollar-cost averaging is really a consistency strategy, not a return guarantee. It helps you stick to a plan instead of trying to guess the best time to invest.

Tip: Dollar-cost averaging works best when it’s automated. If you have to decide every month whether to invest, emotion can still creep back in.

How Does Dollar-Cost Averaging Work?

Dollar-cost averaging works by spreading your purchases across time. You choose:

• a fixed dollar amount
• a schedule, like weekly, biweekly or monthly
• The investment you want to keep buying

When prices fall, your fixed amount buys more shares. When prices rise, it buys fewer shares. This can result in paying a lower average price per share over time and can help investors avoid the temptation to time the market.

What Does Dollar-Cost Averaging Look Like in Real Life?

Here’s a simple example. Let’s say you invest $50 every month into the same fund for one year.

Month	Amount invested	Share price	Shares purchased
January	$50	$7.00	7.14
February	$50	$9.00	5.56
March	$50	$12.00	4.17
April	$50	$10.00	5.00
May	$50	$8.00	6.25
June	$50	$11.00	4.55
July	$50	$13.00	3.85
August	$50	$7.00	7.14
September	$50	$9.00	5.56
October	$50	$10.00	5.00
November	$50	$12.00	4.17
December	$50	$8.00	6.25

Over the year, you invest $600 total and accumulate about 64.64 shares.

This example shows the core idea clearly: the dollar amount stays the same, but the number of shares changes with the price. That’s what lets the strategy average out your purchase cost over time.

What Are the Benefits of Dollar-Cost Averaging?

Dollar-cost averaging can be useful because it simplifies investing and helps reduce emotional decision-making.

Main Benefits

• Helps reduce timing risk: You don’t have to guess the perfect entry point.
• Encourages consistency: It turns investing into a routine.
• Can lower your average share cost over time: You buy more shares when prices are lower.
• May help control emotions: Helps investors avoid the temptation to time the market.

Key Insight: Dollar-cost averaging is often more about behavior than math. Its biggest advantage is helping investors stay disciplined.

What Are the Drawbacks of Dollar-Cost Averaging?

Dollar-cost averaging is not always the highest-return strategy.

Main Drawbacks

• It can underperform lump-sum investing: May lead to lower long-term returns, especially in a rising market.
• It does not guarantee profits: It doesn’t protect against losses when prices are falling.
• You may miss gains while waiting: If the market rises while you’re slowly investing cash, that cash is not fully exposed yet.
• Fees can matter: Repeated purchases may create more brokerage fees, which can erode returns.

Dollar-Cost Averaging vs. Lump-Sum Investing: Which Is Better?

Lump-sum investing usually wins on return potential because your money gets into the market sooner. Lump-sum investing gives investments exposure to the markets earlier, and research indicates that investing a lump sum immediately has often been the wiser move historically.

Dollar-cost averaging may still be the better fit if you:

• feel nervous about investing a large amount all at once
• want to reduce short-term regret risk
• prefer a more gradual approach
• are investing from ongoing paychecks rather than a big lump sum

Quick Comparison

When Does Dollar-Cost Averaging Make Sense?

Dollar-cost averaging usually makes the most sense when you are investing money as you earn it, not when you are holding a large pile of cash and deciding whether to delay investing it. This concern doesn’t apply the same way to something like a 401(k), because you are investing money as it comes in.

It can be a good fit for:

• new investors
• people contributing to a 401(k) each paycheck
• investors in volatile markets
• people who want a set-it-and-forget-it system
• investors who struggle with market timing

How Do You Start Using Dollar-Cost Averaging?

Getting started is fairly simple.

Step 1: Choose Your Investment

This could be a 401(k), IRA, brokerage account, mutual fund or ETF.

Step 2: Pick a Schedule

Choose how often you’ll invest, such as weekly, biweekly or monthly.

Step 3: Set a Fixed Amount

Decide how much you can invest consistently without disrupting your budget.

Step 4: Automate It

Automatic investing is usually the easiest way to stay consistent.

Step 5: Review, Don’t Obsess

Check your long-term progress occasionally, but avoid reacting to every short-term move.

Tip: A dollar-cost averaging plan works best when the amount is realistic. A smaller contribution you can keep making is better than an ambitious one you’ll stop after two months.

Final Take to GO

Dollar-cost averaging means investing the same amount of money on a regular schedule, regardless of market conditions. It can help reduce timing pressure, smooth out the emotional side of investing and make it easier to stay consistent over time.

It’s not a magic strategy, though. It doesn’t guarantee profits, and lump-sum investing has often produced better long-term results because more money reaches the market sooner. Still, for many investors, dollar-cost averaging is a practical way to keep investing without trying to outguess the market.

Information is accurate as of April 9, 2026.

Share This Article: