Nominal vs. real returns: What your investment gains actually mean

Nominal returns are the percentage gains or losses on your investments before adjusting for inflation, taxes or fees. This is the number you usually see on your brokerage statement or in financial news.

Let’s say you checked your investment account after one year and see a message stating your portfolio earned 8%. At first glance, that feels like a win. If you started with $10,000, you now have $10,800. The only downside is you probably aren’t 8% richer. Why? Prices change. Inflation happens.

Think about your grocery list, your gas and travel expenses, the clothes you bought online or even your rent last year. Chances are you’re paying more for those same items now versus 365 days ago. While $10,000 will certainly help you purchase those same items, you’ll more than likely end up with less of them. This increase in price is inflation. So even with the increase (in this case, $10,800), your buying power didn’t fully grow the full 8%.

In this article, you’ll learn more about how to calculate real returns, how to recognize inflation-adjusted returns, what the Fisher equation is, and the difference between nominal vs. real returns.

When you look at brokerage statements, mutual fund fact sheets and market headlines, you’ll see nominal returns. Visually, it may be a chart that shows you how much your investment went up or down. If it factors inflation, taxes or fees, it may look something like this.

Investment Overview (1-Year Period)

In this example, while you earned 8% (nominal return) and prices rose 3% (inflation), your real return is a little under 5%. And this is why investors pay attention to the real rate of return and inflation-adjusted returns. Instead of having $800 more, your buying power is less than $500 with your initial investment.

Real returns adjust for inflation and confirm whether you can buy more than you could last year. So does this make nominal returns irrelevant? No, they’re still useful for tax reporting, comparing investments over the same time period and tracking short-term performance. For long-term planning, real returns are a more practical option though.

There are two main ways to calculate real returns: the simplified formula (when both figures are low to moderate) and the Fisher equation (precise formula that’s more accurate with higher figures).

Real Return ≈ Nominal Return − Inflation Rate

Real Return = [(1 + Nominal Return) ÷ (1 + Inflation Rate)]

The difference may seem slim, but it adds up over time. The higher the inflation, the more important the Fisher equation becomes.

Now see how inflation affects your investments in practice

Knowing the difference between nominal and real returns is step one. See which investments have historically held up (and which haven't) when inflation cuts into your gains.

See how inflation affects investments

Inflation reduces your purchasing power over time, and it compounds (earns returns on your returns) just like investment returns do. Using your $10,000 investment, let’s say it grows at 7% over a 30-year duration. You’ll end up with approximately $76,100. If adjusted for inflation (3%), that’s about $40,100 today.

If you plan your retirement around nominal returns, you would be under-saving. This would be like planning your 2026 income for the same retirement budget as 1976 or 1986. Not only have prices changed, but even an 8% return in the 1970s (with high inflation) wouldn’t mirror an 8% return in the 1990s (with low inflation).

If you recall what happened in the 1970s, investors earned double-digit nominal returns but still had negative real returns because of “demand pull” inflation.

Historically, your investment choice also will have different results based on inflation. Market cap is simply the total dollar value the stock market places on a company at any given time. Investments are broken down into asset classes from there.

Stocks often have the strongest real returns because they represent share ownership in companies. When inflation rises, companies can raise their prices. That results in revenues and profits growing over time, even when the cost of goods increases. As profits grow, stock prices often rise as well.

Bonds, which are loans you make to governments or companies, receive fixed-interest payments. But those payments don’t adjust. If inflation rises, the money you receive buys less than expected. Earning 5% on a bond won’t be particularly appealing if inflation is 4%. On the upside, bonds provide more stability in comparison to stocks and can help preserve value, especially during market downturns.

Then there’s cash, the category most vulnerable to inflation. Cash typically earns the lowest return. Money sitting in a savings account or as physical cash doesn’t grow much, even when interest rates are higher.

Over time, inflation steadily reduces what that money can buy. If inflation is 3% and your savings earns 1%, you’re losing purchasing power each year. While cash is a safe option in the short term and protects your nominal balance, it’s risky over long periods.

This is why having a diverse portfolio matters so much, including during tax time.

Taxes are based on nominal gains, not real gains. Let’s look at an example of how your taxes could look if your nominal gain was 8%, your long-term capital gains rate was 15% and inflation was 3%.

After-tax nominal return: 8% − (8% × 15%) = 6.8%

After-tax real return ≈ 3.7% — less than half the headline 8%
In a simplified concept, After-tax real return ≈ Nominal return − taxes − inflation

Tax-deferred accounts like a 401(k) or traditional IRA allow your investments to grow without annual taxation, deferring taxes until withdrawal. Tax-free accounts like a Roth IRA eliminate taxes on qualified withdrawals altogether.

In both cases, you can reduce or eliminate ongoing tax drag (the negative impact that taxes can have on your investments or portfolio), allowing more of the gross return to compound over time. Taxes and inflation quietly reduce real wealth accumulation, while tax-advantaged accounts help preserve more of the true return.

For retirement goals that have at least 10 years of wiggle room, you’ll probably want to seek opportunities for growth. Consider stocks, Treasury Inflation-Protected Securities (TIPS) and I-bonds. These adjust with inflation and help protect your buying power.

Stocks have historically outpaced inflation by 4 to 7 percentage points annually. The main idea for wealth management with stocks is not just trying to get the highest return but making sure your money grows faster than inflation over time. That way, you can realistically buy more in the future.

A mix of stocks also gives your money a better chance to grow even when markets rise and decline, or when taxes take a cut. Younger investors also may do better with more stocks because they have more time to ride out ups and downs.

Inflation-protected securities such as TIPS and I bonds are designed to directly address inflation risk.

TIPS adjust their principal based on Consumer Price Index (CPI) changes. If prices rise, the value of your investment also goes up. This helps keep your money’s buying power from shrinking too much.

I bonds work similarly, but they combine a fixed interest rate with an additional rate that changes with inflation.

While neither of these investments grow as rapidly as your stock portfolio, both are more stable and help reduce the risk of inflation hurting your savings. Think of them as a safety layer. Stocks help your money grow, and inflation-protected investments help keep that growth from being wiped out by rising prices.

Shorter-duration bonds tend to be less affected by inflation surprises because they mature sooner and can be reinvested at updated rates. In contrast, long-duration bonds can lose value more significantly when inflation rises and interest rates increase.

Bond laddering, where bonds mature at staggered intervals, creates flexibility by allowing reinvestment into higher-yielding bonds if inflation or interest rates rise unexpectedly. Managing duration does not eliminate inflation risk, but it helps reduce volatility and improves adaptability in changing rate environments.

If you’re concerned about real returns, keeping fixed income relatively short to intermediate in duration can help preserve capital while still generating income.

Tax-advantaged accounts like 401(k)s, traditional IRAs and Roth IRAs can significantly improve after-tax real returns. Traditional accounts defer taxes until withdrawal, while Roth accounts eliminate taxes on qualified withdrawals entirely.

If you place higher-growth investments in Roth accounts and tax-inefficient assets in tax-deferred accounts, you could enhance your after-tax outcomes. Even small reductions in tax drag can compound into substantial differences for real wealth.

Financial planning is more accurate when framed in real (inflation-adjusted) dollars rather than nominal account balances. A savings goal of $1 million today will not have the same purchasing power in 20–30 years due to inflation. A practical approach is to assume a 3% annual inflation rate and translate future goals into today’s dollar value.

Tracking progress in real dollars can prevent false confidence from inflated account values and helps maintain alignment with actual purchasing power goals. Regular portfolio reviews help to ensure that both savings rates and investment strategies remain consistent with real-world financial needs over time.

Investors too often focus on nominal returns instead of real returns, which results in celebrating gains without considering inflation. For example, if an investment grows 6% in a year but inflation is 4%, your real improvement in buying power is only about 2%. On paper, it looks like strong growth, but in reality, most of the gain just kept up with rising prices rather than increasing wealth.

Another misstep is setting long-term goals in future dollar amounts without adjusting for inflation. For example, $1 million for retirement sounds aspirational, but $1 million in 30 years will not have the same buying power it does today. Prices for housing, health care and everyday items will increase. A better approach is to think in today’s dollars first, then account for inflation when planning.

Additionally, cash will not always be safe. While a savings account protects the nominal balance, it does not protect purchasing power. If inflation is higher than the interest rate, the money slowly loses value even though the account balance is not going down and you continue to deposit money into it. Unfortunately, you’re still at risk of a hidden loss over time.

When tax time comes around, investors are taxed on nominal gains, not real gains. That means you can owe taxes on part of your return that only matched inflation and didn’t actually increase your purchasing power. This reduces what you truly keep.

Finally, comparing investment performance across different decades without adjusting for inflation can be misleading. A “10% average return” will differ if inflation is low or high during that period. Without adjusting for inflation, it’s easy to overestimate how much real wealth your returns produced.

Nominal vs. real returns is more than just a math concept. It’s the difference between what your money earns and what it’s worth. Nominal returns show the headline number. Real returns show your true progress. For long-term goals, especially retirement, focusing on real and after-tax real returns can help you plan more accurately and avoid surprises later.

If you’re unsure whether your investments are keeping up with inflation, consider speaking with a Thrivent financial advisor to review your strategy and make sure your long-term plan reflects real-world outcomes.