Real Rate of Return

What is real return?

Real return is how much your money truly grew after accounting for inflation. It's the increase in what your money can buy, not just the number in your account.

If your investment went up 10% but prices went up 8%, your real return is only about 2%.

If you've ever made money and still wondered why it doesn't feel like more, this is why.

How it works

When you invest, your return is what you earn. If $100 grows to $110 in a year, your return is 10%. That's your nominal return.

But over that same year, the cost of groceries, rent, and gas usually goes up too. That's inflation. If your grocery bill also rose 10%, your money grew on paper but buys the same amount of stuff. That's breaking even, not a gain.

Real return formula

Simple version:

Real return ≈ Nominal return minus inflation

Precise version:

Real return = [(1 + nominal return) ÷ (1 + inflation rate)] minus 1

The simple version is close enough for everyday use when both numbers are small.

Example

You invest $1,000 in an index fund. After one year it earns 10%, so your account shows $1,100. During that year, inflation was 6%.

Your real return is about 4%, not 10%. Still a win, just not as big as the raw number made it look.

Quick reference

Everyday examples

• Savings account: Your high-yield savings account pays 4% and inflation is 3%. Your real return is about 1%.
• Roth IRA: Your index funds grow 8% and inflation is 4%. Your real return is about 4%, and qualified withdrawals from a Roth are tax-free.
• Cash under the mattress: A 0% return with 3% inflation is a -3% real return. Your cash is losing buying power every year.

These rates are hypothetical. Actual savings rates and inflation change over time.

How to check your own real return

1. Find your return. Look at your statement for the year. Say it shows 9%.
2. Look up inflation for the same year on the Bureau of Labor Statistics CPI page. Say it's 4%.
3. Subtract. 9% minus 4% = about 5% real return.

How to improve your real return

• Hold long-term money in growth investments that have historically outpaced inflation over long periods, like broad stock index funds.
• Use tax-advantaged accounts like a 401(k) or IRA so less of your gain goes to taxes.
• Keep fees low. A high expense ratio comes straight out of your return.
• Reinvest dividends so your gains can compound. See compound interest.

Frequently asked questions

Is real return the same as profit?

Not exactly. Profit is how many dollars you made. Real return is how much more those dollars can buy after prices rise. You can make a profit and still have a negative real return if inflation is higher than your gain.

Why is real return lower than what my account shows?

Your account shows the nominal return, the total gain before anything is subtracted. Real return removes the effect of inflation.

Can real return be negative?

Yes, especially when inflation is high. If your money grows 3% but prices grow 6%, your real return is about -3%.

How often should I calculate it?

Real return is usually measured year by year, so an annual check is plenty.

Should I factor in taxes?

Yes. Your after-tax real return is what you actually keep. Holding investments in tax-advantaged accounts is one of the simplest ways to raise it.

How do interest rates affect real returns?

Higher interest rates can raise what you earn on savings and new bonds, but what matters is whether that rate beats inflation. A 5% savings rate with 5% inflation is still a 0% real return.