Here's How Much Money You Could Have if You Invested $1,000 a Month for 20 Years (2024)

Investing money in a brokerage account is a smart financial move, but many people don't realize just how powerful investing is as a wealth-building tool. In fact, buying assets that provide you with reasonable returns is one of the keys to achieving financial independence for the vast majority of people.

To understand just why and how investing can be helpful, let's take a look at what happens if you invest $1,000 a month for a period of 20 years.

Here's what a $1,000 monthly investment could do for you

Investing $1,000 a month for two decades is undoubtedly going to help your money to grow, but the specific amount you'll end up with varies depending on the returns you earn.

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For many people, it's reasonable to expect a 10% average annual return. That's what the (a financial index of around 500 of the largest U.S. companies) has consistently produced over time, so if you don't know how to pick stocks and don't want to try to figure it out, you can just put your money in a fund that mirrors its performance.

If you earn this 10% average annual return over a full two decades while putting in $1,000 per month during that entire time, you could end up with a nest egg of $687,306.72.

Now, you may be thinking that $1,000 a month for 20 years is a lot of money -- and you're right. But it's nowhere near $687,306.72. In fact, the actual value of your contributions alone would be $240,000, so you could end up with about $447,307 more than the amount you put in.

The returns you earn, and compound growth, account for all that extra money. When you invest, you ideally earn a profit on that investment in most years. The gains you make can be reinvested.

So, for example, if you invested $1,200 the first year and made a $120 profit, you'd have $1,320 invested the next year. So you'd now be earning returns on $1,320 instead of $1,200. The returns you get keep growing your balance, so next year you ideally earn even more.

How to find $1,000 a month to invest

Investing $1,000 a month may seem like a big task, as it's a total of $12,000 per year. But the average full-time worker earned $59,540 in the last quarter of 2022. So, investing $12,000 a year would mean putting away about 20% of your annual income if you earn around the average salary.

That's a lot of money, but it's not impossible -- especially if you keep your fixed expenses low. You also have to remember that you can get tax breaks for your savings and your employer might match the contributions you are making. So you don't necessarily have to invest that entire $1,000 a month all by yourself.

Say your employer offers a 401(k) and matches 50% of your contributions to it, up to 6% of your salary. You could earn an annual employer match of $3,572.40 if you earn the average annual salary, assuming you contributed at least that much to your 401(k). So, you would personally only have to contribute $8,427.60 per year to end up with $12,000 in your retirement account.

Now, let's assume you're in the 22% tax bracket, which is where you'd be as a single tax filer with the average income. If you invest $8,427.60 a year, you'd save $1,854.07 on your taxes. So your contributions would already decrease your actual take-home income by $6,573.53. That's about 11% of your annual income which should be very doable. The table below shows what this would look like.

Your contribution$8,427.60
Employer match$3,572.40 (maximum match based on your salary)
Total contribution$12,000
Tax deduction$1,854.07 (22% of $8,427.60)
Actual cost of contribution after tax savings$6,573.53

Data source: Author's calculations.

As you can see, if you invest only a little more than 10% of your income, you can be on track to a nest egg of well over half-a-million dollars. So, get started today. Sign up for your company's 401(k) if you have access to one, and ask your employer to make automatic contributions for you from your paycheck. If you don't have a 401(k), arrange to have money taken out of your checking account each month and sent to an IRA. You'll have to contribute a little more without the employer match, but if you can even get close to a $12,000 annual contribution, you should be well on your way to a secure future.

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Here's How Much Money You Could Have if You Invested $1,000 a Month for 20 Years (2024)

FAQs

Here's How Much Money You Could Have if You Invested $1,000 a Month for 20 Years? ›

Investing $1,000 a month for 20 years would leave you with around $687,306. The specific amount you end up with depends on your returns -- the S&P 500 has averaged 10% returns over the last 50 years. The more you invest (and the earlier), the more you can take advantage of compound growth.

What if I invested $1000 in the S&P 500 20 years ago? ›

2024, the S&P 500 has posted an average annual return of 9.74%, right about in line with its long-term average. Here's how much you would have now if you invested in the S&P 500 20 years ago, based on varying starting amounts: $1,000 would grow to $2,533. $5,000 would grow to $12,665.

How much is $1000 a month for 5 years? ›

In fact, at the end of the five years, if you invest $1,000 per month you would have $83,156.62 in your investment account, according to the SIP calculator (assuming a yearly rate of return of 11.97% and quarterly compounding).

How much is $500 a month invested for 20 years? ›

What happens when you invest $500 a month
Rate of return10 years20 years
4%$72,000$178,700
6%$79,000$220,700
8%$86,900$274,600
10%$95,600$343,700
Nov 15, 2023

What happens if you invest $100 a month for 40 years? ›

According to Ramsey's tweet, investing $100 per month for 40 years gives you an account value of $1,176,000. Ramsey's assumptions include a 12% annual rate of return, which some critics have labeled as optimistic given that the long-term average annual return of the S&P 500 index is closer to 10%.

What happens if you invest $1,000 a month for 20 years? ›

Investing $1,000 a month for 20 years would leave you with around $687,306. The specific amount you end up with depends on your returns -- the S&P 500 has averaged 10% returns over the last 50 years. The more you invest (and the earlier), the more you can take advantage of compound growth.

What's the average return of the S&P 500 over the last 20 years? ›

The historical average yearly return of the S&P 500 is 9.88% over the last 20 years, as of the end of April 2024. This assumes dividends are reinvested. Adjusted for inflation, the 20-year average stock market return (including dividends) is 7.13%.

How much interest will $1,000 earn in 20 years? ›

For example, with an initial balance of $1,000 and an 8% interest rate compounded monthly over 20 years without additional deposits, the calculator shows a final balance of $4,926.80. The total compound interest earned is $3,926.80.

How much do I need to invest monthly to be a millionaire in 20 years? ›

Given an average 10% rate of return on the S&P 500, you need to save about $1,400 per month in order to save up $1 million over 20 years. That's a lot of money, but the good news is that changing the variables even a little bit can make a big difference.

Is $2 million enough to retire? ›

Summary. $2 million is far above the average retirement savings in the US. $2 million should afford you to enjoy a comfortable and happy retirement. If you choose to retire at 50, a retirement savings fund of $2 million would provide you with $50,000 annually.

How long will it take to become a millionaire if I invest 1000 a month? ›

If you invest $1,000 per month, you'll have $1 million in 25.5 years.

How much do I need to invest to be a millionaire in 10 years? ›

Now, let's consider how our calculations change if the time horizon is 10 years. If you are starting from scratch, you will need to invest about $4,757 at the end of every month for 10 years. Suppose you already have $100,000. Then you will only need $3,390 at the end of every month to become a millionaire in 10 years.

Can you double your money in 10 years? ›

Using the classic rule of 72, an investor can estimate how long it takes to double their money. At 7% annual returns, an investor would see $10,000 grow to $20,000 in about a decade by taking 72 and dividing it by 7%, the rate of return.

What if I invested $10,000 in S&P 500 10 years ago? ›

Assuming an average annual return rate of about 10% (a typical historical average), a $10,000 investment in the S&P 500 could potentially grow to approximately $25,937 over 10 years.

How much money was $1000 invested in the S&P 500 in 1980? ›

In 1980, had you invested a mere $1,000 in what went on to become the top-performing stock of S&P 500 (^GSPC 0.80%), then you would be sitting on a cool $1.2 million today. That equates to a total return of 120,936%. The stock? None other than Gap (GPS 28.60%).

What is over a 20 year period an investment of $1000? ›

For example, if you have $1,000 and invest it at 10% per year for 20 years, its value after 20 years is $6,727. This assumes that you leave the interest amount earned each year with the investment rather than withdrawing it.

How much would I have if I invested in the S&P 500 in 1990? ›

S&P 500: $100 in 1990 → $2,953.46 in 2024

If you invested $100 in the S&P 500 at the beginning of 1990, you would have about $2,953.46 at the end of 2024, assuming you reinvested all dividends. This is a return on investment of 2,853.46%, or 10.36% per year.

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