# Mutual Fund Calculator

> Project a mutual fund balance and net return after contributions, sales loads, deferred charges, and operating expenses.

Page: https://askcalculators.com/calculator/mutual-fund-calculator/
Definition: https://askcalculators.com/calculator/mutual-fund-calculator/definition.json
JSON Schema: https://askcalculators.com/calculator/mutual-fund-calculator/schema.json
Version: 1.0.0
Maintained by: AskCalculators (software project; not a credentialed reviewer)
Qualified review: pending. Automated checks do not establish professional approval.
Page status: Live
Review status: Pending

## Use
Open the calculator page and enter values. Query-string parameters can restore and bookmark a calculation.
Example: https://askcalculators.com/calculator/mutual-fund-calculator/?initialInvestment=20000&annualContribution=0&monthlyContribution=1000&annualReturn=5&holdingYears=5&holdingMonths=0&salesCharge=2&deferredSalesCharge=0&operatingExpense=0.5

## Inputs
- initialInvestment: Initial investment; type=money; required; default=20000; min=0
- annualContribution: Annual contribution; type=money; optional; default=0; min=0
- monthlyContribution: Monthly contribution; type=money; optional; default=1000; min=0
- annualReturn: Gross annual return; type=percent; required; default=5; min=-99.9; max=100
- holdingYears: Holding years; type=number; required; default=5; min=0; max=80
- holdingMonths: Additional months; type=number; required; default=0; min=0; max=11
- salesCharge: Front-end sales charge; type=percent; optional; default=2; min=0; max=100
- deferredSalesCharge: Deferred sales charge; type=percent; optional; default=0; min=0; max=100
- operatingExpense: Annual operating expense ratio; type=percent; optional; default=0.5; min=0; max=20

## Outputs
- endingValue: Ending value; format=currency; primary
- totalPrincipal: Total principal contributed; format=currency
- totalContributions: Contributions after the initial investment; format=currency
- netReturn: Net return; format=currency
- netIrr: Net IRR; format=percent
- salesCharges: Front-end sales charges; format=currency
- deferredCharge: Deferred sales charge; format=currency
- operatingExpenses: Estimated operating expenses; format=currency
- totalFees: Total estimated fees; format=currency
- grossGrowth: Gross investment growth; format=currency

## Formula
Balanceₜ = Balanceₜ₋₁ × (1 + r_net,m) + net contributions

- r_net,m: monthly rate equivalent to gross annual return minus the operating expense ratio
- net contributions: cash contributions after front-end sales charges
- expense ratio: annual operating expense rate reflected in the projected net return

Net IRR is solved from the investor's monthly cash outflows and final redemption value. The dollar expense figure is estimated separately from a gross-return tracking balance.

## Rules
- Empty optional inputs are undefined, not zero.
- Hidden conditional inputs are ignored.
- Do not invent missing required inputs.

Notice: Investment returns are uncertain. This projection uses one constant return and does not predict market performance.