Glossary term
Real Rate of Return
The real rate of return is what your money earns after adjusting for inflation. It shows the actual growth in purchasing power rather than in dollars. A quick estimate is the nominal rate minus inflation; the exact figure is (1 + nominal) ÷ (1 + inflation) − 1, which is slightly smaller.
Updated October 17, 2026 · Editorial Team
How Real Rate of Return works in practice
Nominal returns are the numbers on your statement. Inflation erodes what those dollars can buy, so the real return tells you whether you are gaining ground. Taxes reduce it further, which is why after-tax real return is the most honest measure for a taxable savings account.
Say your savings earn 5.00% and inflation runs at 3.00%. The quick estimate is 2.00%. The exact real return is 1.05 ÷ 1.03 − 1 = 1.94%. Over long periods, that small gap compounds, so using the exact formula matters for big projections.
When planning for long-term goals, working in real terms lets you think in today's dollars. A savings product with a high nominal rate may still deliver a negative real return if inflation is higher. Comparing real returns keeps your expectations realistic.
Real Rate of Return: quick questions
Can a real rate of return be negative?
Yes. If inflation is higher than your nominal return, your purchasing power falls even as the balance rises.
Why not just subtract inflation?
Subtraction is a good shortcut, but the exact formula divides, which gives a slightly lower and more accurate number.
Do taxes affect real return?
Yes. Taxes on interest lower your nominal return first, which lowers the real return too.
Sources
- Consumer Price Index — U.S. Bureau of Labor Statistics. Accessed October 17, 2026.
- Compound Interest Calculator — U.S. Securities and Exchange Commission (Investor.gov). Accessed October 17, 2026.
We cite primary sources: regulators, central-bank data and federal agencies. Worked examples on this page are our own calculations. See our methodology.
Put the definition to work.
Change one input and watch how this term moves your result.