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Advanced Financial Management · Mutual Funds

Returns on Mutual Fund Investment: CA Final AFM

Updated 5 October 2026 · Fact-checked

Mutual fund return is the total gain on your investment over the holding period, as a percentage of the opening NAV. Add the change in NAV to all dividends and capital gain distributions, divide by the opening NAV, then annualise by multiplying by 12 ÷ months held (or use compounding if reinvested).

Understand Returns on Mutual Fund Investment

When you hold a mutual fund unit, you can earn in two ways. The NAV can rise or fall, and the fund can pay you cash as dividend or capital gains distribution. Total return counts both.

So the return over the holding period is: income received plus the change in NAV, divided by the NAV you started with. This is the absolute return or holding period return. It does not depend on how long you held the unit.

To compare funds held for different periods, you convert the absolute return to a yearly figure. This is the annualised return. The simple method multiplies by 12 ÷ number of months. The compound method, called effective yield, uses (1 + r)^(12 ÷ months) − 1. Use the method the question asks for. If the question gives no hint, state your method clearly.

If the distributions are reinvested, you buy more units at the NAV on the distribution date. Then you must track units, not just rupees. Final value is the total units multiplied by the closing NAV. Return is measured on the original investment.

A question may also give an entry load. Then your cost is the offer price, not the NAV. Use the amount you actually paid as the base.

Key rules to remember

Absolute (holding period) return
Return % = [(NAV₁ − NAV₀) + Dividend + Capital gain distribution] ÷ NAV₀ × 100
Per unit basis. NAV₀ is the opening NAV, or the offer price if an entry load applies and you paid it.
Simple annualised return
Annualised return = Absolute return × (12 ÷ months held)
Use 365 ÷ days if the period is given in days.
Effective annual yield (compounded)
Effective yield = (1 + Absolute return)^(12 ÷ months held) − 1
Absolute return as a decimal. Use when the question says effective or compounded.
Return with reinvestment
Return % = (Total units at end × NAV₁ − Amount invested) ÷ Amount invested × 100
Units added on reinvestment = Distribution ÷ Ex-distribution NAV on reinvestment date.
Total distribution per unit
Distribution per unit = Face value × Distribution % (when the distribution is declared as a percentage)
When a distribution is given as a percentage, apply it to face value, not NAV. When it is given in rupees per unit, use that figure directly.
Net-of-load redemption return
Return % = (Exit price + Distributions − Purchase price) ÷ Purchase price × 100
Purchase price includes entry load. Exit price is NAV less exit load.

How to solve Returns on Mutual Fund Investment questions

Use this order for any return question, whether it has dividends, capital gains or reinvestment.

  1. 1Note the number of units and the amount invested. Check if an entry load applies, and fix the purchase cost.
  2. 2Find the distribution per unit. If given as a percentage, apply it to face value.
  3. 3Check whether distributions are paid out or reinvested. If reinvested, find the ex-distribution NAV and compute new units.
  4. 4Find the closing value: closing NAV × total units.
  5. 5Compute total gain = closing value + cash distributions received (zero if reinvested) − amount invested, after any exit load.
  6. 6Divide the gain by the amount invested to get the absolute return.
  7. 7Annualise using the method asked: simple (× 12 ÷ months) or compounded. Quote the period used.
  8. 8State the answer as a percentage and add a one-line comparison or conclusion if asked.

Quickest way: Per-unit total return shortcut

When to use it: Use when there is no reinvestment and the question asks for return per unit or on a given investment.

  1. Write NAV₀, NAV₁ and total distribution per unit in one line.
  2. Compute (NAV₁ − NAV₀ + distribution) and divide by NAV₀.
  3. Multiply by 12 ÷ months for annualised return.
  4. Check: if the answer is above 100% or negative without reason, recheck the face value and the distribution rate.

Common mistakes in Returns on Mutual Fund Investment

  • Applying the dividend percentage to NAV instead of face value.

    Students treat dividend like a yield on market price.

    Fix: A dividend of 10% on a ₹10 face value unit is ₹1 per unit. When the distribution is given as a percentage, apply it to face value. When it is given in rupees per unit, use that figure directly.

  • Ignoring entry load in the cost base.

    Students start from NAV because the formula says NAV₀.

    Fix: If you paid the offer price, use it as the cost. Read the question for 'invested' amounts and loads.

  • Forgetting to annualise or using the wrong factor.

    The holding period is in months or days and gets overlooked.

    Fix: Write the period next to the return. Multiply by 12 ÷ months, or 365 ÷ days. For exactly 12 months the factor is 1, so the return stays the same. For periods longer than a year the factor is less than 1.

  • Using the old NAV for reinvestment units.

    Students forget the NAV falls after a distribution.

    Fix: Use the ex-distribution NAV given for the reinvestment date. New units = distribution ÷ that NAV.

  • Mixing simple and compound annualisation.

    Both appear in the study material and students switch midway.

    Fix: Choose one method as the question words it. Effective yield means compounded.

  • Adding distributions twice when reinvested.

    Students add the cash and also count the extra units.

    Fix: With reinvestment, the distribution is already inside the extra units. Do not add it again as cash.

Worked examples

Example 1

Mr. Rao bought 5,000 units of a mutual fund at an NAV of ₹40 per unit on 1 April, with no entry load. During the year the fund paid a dividend of 15% on face value of ₹10 and a capital gain distribution of ₹2 per unit. NAV on 31 March was ₹43. He received the distributions in cash. Find his return for the year.

Show the solution
  1. Investment = 5,000 × ₹40 = ₹2,00,000.
  2. Dividend per unit = 15% × ₹10 = ₹1.50. Total dividend = 5,000 × ₹1.50 = ₹7,500.
  3. Capital gain distribution = 5,000 × ₹2 = ₹10,000.
  4. Closing value = 5,000 × ₹43 = ₹2,15,000.
  5. Total gain = (₹2,15,000 − ₹2,00,000) + ₹7,500 + ₹10,000 = ₹32,500.
  6. Return = ₹32,500 ÷ ₹2,00,000 × 100 = 16.25%.
  7. Period is one year, so annualised return is also 16.25%.

Answer: The return is 16.25% for the year, which is also the annualised return.

Example 2

An investor bought 1,000 units at an NAV of ₹50 each. After 3 months the NAV had risen to ₹55 and the fund declared a distribution of ₹5 per unit. The NAV fell to ₹50 on the ex-distribution date. The investor reinvested the whole amount in new units at the ex-distribution NAV of ₹50. At the end of 6 months from purchase, NAV was ₹54. Find the absolute return and the simple annualised return.

Show the solution
  1. Investment = 1,000 × ₹50 = ₹50,000.
  2. Distribution received = 1,000 × ₹5 = ₹5,000. The NAV falls by this ₹5, from ₹55 before distribution to ₹50 ex-distribution.
  3. New units = ₹5,000 ÷ ₹50 = 100 units, bought at the ex-distribution NAV.
  4. Total units = 1,000 + 100 = 1,100.
  5. Closing value = 1,100 × ₹54 = ₹59,400.
  6. Gain = ₹59,400 − ₹50,000 = ₹9,400.
  7. Absolute return = ₹9,400 ÷ ₹50,000 × 100 = 18.80%.
  8. Simple annualised return = 18.80% × (12 ÷ 6) = 37.60%.

Answer: Absolute return is 18.80% over 6 months. Simple annualised return is 37.60%.

Exam tips

  • Write units, investment and distribution per unit first. Marks are given for each working line, even if the final figure slips.
  • Read whether distribution is reinvested. It changes the method from per-unit to unit-tracking.
  • Show the annualisation formula and state if you use simple or compounded. This protects marks when the examiner expects the other method.
  • Check if the question asks for return on NAV or on the offer price. Entry load is a favourite trap.
  • In case-scenario MCQs, estimate the answer first. Then pick the nearest option that matches your working.

Practice questions from Mutual Funds

Returns on Mutual Fund Investment in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Returns on Mutual Fund Investment: frequently asked questions

What is the formula for return on mutual fund investment?

Return = (closing NAV − opening NAV + distributions) ÷ opening NAV × 100. This is the absolute return for the holding period. Annualise it if the period is not one year.

What is the difference between absolute return and annualised return?

Absolute return is the total gain over the whole holding period. Annualised return converts it to a yearly rate so funds held for different periods can be compared.

How do I treat dividend reinvestment in the return calculation?

Divide the distribution by the ex-distribution NAV to get new units. Add them to your units and value all units at the closing NAV. Do not also add the dividend as cash.

Should I use simple or compound annualisation in CA Final?

Follow the wording of the question. If it asks for effective yield or compounded return, use (1 + r)^(12 ÷ months) − 1. Otherwise, simple annualisation is common, but state your method.