What is simple rate of return?
Simple rate of return answers one question: "What percentage did I make or lose on this investment over the holding period?" It combines three inputs — price change, income received, and costs paid — into a single net gain, then divides that gain by the starting investment.
It is called "simple" because it does not adjust for the time value of money or convert the result into an annualized rate. A 14.5% simple return over 6 months is a very different investment from a 14.5% simple return over 3 years — the simple return formula treats them identically. That is both the strength (fast, readable, no assumptions) and the main limitation (no time adjustment).
Simple rate of return is most useful for:
- Reviewing a completed investment position after selling
- Comparing two investments held for the same period
- Quickly checking whether a position met a minimum return target
- Understanding how much of the return came from price vs income
Simple rate of return formula
The calculator uses five formulas from four inputs:
Net Gain = Capital Gain + Income Received − Fees & Costs
Simple Rate of Return = (Net Gain ÷ Beginning Value) × 100
Capital Gain % = (Capital Gain ÷ Beginning Value) × 100
Income Return % = (Income Received ÷ Beginning Value) × 100
Full return waterfall — stock with dividends preset
Default preset: begin $10,000 · end $11,200 · income $300 · fees $50 · 12 months:
Capital gain and income return add up to 15.00% gross — fees drag it back to 14.50% net. The bar shows the visual proportion of each component.
How to calculate simple rate of return — step by step
Worked examples
All four calculator presets — each showing a different return profile.
Begin $10K · End $11.2K · Income $300 · Fees $50
Typical equity position with dividend income and brokerage commission.
✓ Price-led return (12%) boosted by income (3%), trimmed by fees (−0.5%)
Begin $25K · End $27.15K · Income $600 · Fees $120
Mutual fund or ETF position — lower fee ratio, income from distributions.
→ Smaller cap gain (8.6%) supplemented by income (2.4%) → 10.52% net
Begin $15K · End $13.8K · Income $150 · Fees $75
Price declined — income partially offsets but not enough to avoid a loss.
→ Income (1.00%) partially offset the −8% price drop — net loss still −7.50%
Begin $20K · End $20.35K · Income $1,100 · Fees $80
Bond-like position — price nearly flat, almost all return from income.
→ Income (5.50%) drove almost all the return — price contributed only 1.75%
Simple return vs annualized return (CAGR)
The most important limitation to understand before using the result:
Example: 14.50% over 12 months ≈ 14.50% annualized (same period, fine to compare directly). But 14.50% over 24 months annualizes to (1.145)^0.5 − 1 ≈ 7.08%/year — a very different result.
Common mistakes to avoid
- Leaving out income received. Dividends and distributions are real returns. Omitting them understates the true gain — especially for income-heavy positions like bonds or REITs where income may exceed price appreciation.
- Ignoring fees and transaction costs. A 14.50% gross return after a 0.50% fee drag is 14.00% net. On larger positions or over many years, fee drag compounds significantly.
- Comparing simple returns across different holding periods. A 10% return over 6 months is not the same investment quality as a 10% return over 3 years. Annualize before comparing across time horizons.
- Using account value instead of position value. If you made additional contributions or withdrawals during the period, ending account value no longer reflects pure investment performance. Use position-level beginning and ending values.
- Treating a positive simple return as automatically good. A 3% return over 12 months is technically positive but underperforms a risk-free savings account at 5%. Always compare against a relevant benchmark or hurdle rate.
FAQ
What is the simple rate of return formula?
Capital Gain = Ending Value − Beginning Value. Net Gain = Capital Gain + Income Received − Fees. Simple Rate of Return = (Net Gain ÷ Beginning Value) × 100. Capital Gain % = (Capital Gain ÷ Beginning Value) × 100. Income Return % = (Income ÷ Beginning Value) × 100.
Does the calculator annualize the result?
No. The result is a holding-period return — total gain relative to beginning value for the period measured, without annualizing. To convert to an annual rate, use CAGR: (Ending ÷ Beginning)^(1÷years) − 1.
Is simple rate of return the same as ROI?
They use the same structure but ROI is more commonly used for one-time project or business investments (net profit ÷ cost), while simple rate of return is used for financial investments where beginning value, ending value, and income are the natural inputs. This calculator uses the investment-return version.
What if my ending value is lower than my beginning value?
The capital gain will be negative. If income received does not fully cover the capital loss minus fees, the net gain is negative and the simple rate of return will be negative. This is correct behavior — it reflects a loss. See the loss scenario preset (−7.50%) for an example.
Should I include dividends in the calculation?
Yes — always. A position that returned 8% in price appreciation and paid 3% in dividends delivered 11% total return (before fees). Excluding dividends understates real performance, particularly for income-focused investments like dividend stocks, bonds, or REITs.
What is a good simple rate of return?
It depends on the holding period, risk level, and alternative options. A 10–15% return over 12 months for an equity investment is generally considered solid. The more useful question is: did the return beat the risk-adjusted alternative? Compare against a benchmark (S&P 500, Treasury rate, or internal hurdle rate) rather than evaluating in isolation.