Annualised Return
Annualised return converts an investment's total return over any period into an equivalent annual rate, enabling fair comparison across investments held for different durations. In India, mutual fund performance disclosures use annualised returns (CAGR) for periods exceeding one year.
Annualised return is the process of converting a total return over any time period into its per-year equivalent, assuming compounding. It answers the question: 'if this investment continued at the same pace, what would it return in a single year?' For a return of 50% over 2 years, the annualised return is approximately 22.5% (not 25%, because compounding must be accounted for). This distinction matters because compounding means each year's return is earned on the prior year's gains as well as the original principal.
In Indian financial markets, annualised returns are the standard for communicating multi-year performance. SEBI explicitly requires mutual funds and portfolio management services (PMS) to express returns for periods above one year as compounded annualised growth rates (CAGR), not simple annualised averages. This prevents the misleading presentation of performance — a fund that gained 200% over 10 years should quote a CAGR of approximately 11.6%, not a simple average of 20% per year (which would be incorrect because it ignores the effect of compounding).
For retail investors planning long-term goals like retirement, children's education, or home ownership, annualised returns are the most relevant performance metric. Financial plans are typically built around expected annualised return assumptions: 'I expect my equity portfolio to deliver 12% annualised over 20 years' is a statement that can be translated into a monthly SIP amount needed to reach a target corpus. Conversely, realistic annualised return expectations help investors avoid the trap of over-relying on exceptional short-term returns that cannot realistically be sustained.
An important subtlety is the difference between time-weighted and money-weighted annualised returns. CAGR is a time-weighted measure — it treats each rupee invested as if it was present throughout the entire period. For SIP investors, the internal rate of return (IRR) or money-weighted return is more accurate, as it accounts for the timing and size of each periodic investment. SIP calculators in India typically use XIRR (extended IRR) to compute the actual annualised return on staggered investments, which can differ meaningfully from the fund's quoted CAGR.