The total expense ratio, or TER , is the annual cost a mutual fund charges to manage your money. It is shown as a percentage of the fund’s assets and is deducted from returns, so a lower TER usually means more of the fund’s gains stay with you.

How it works

TER covers the fund’s operating costs, such as fund management, administration, audit, custody, legal, marketing, and other expenses.

A simple formula is:

TER=Total expensesTotal fund assets or AUM×100\text{TER}=\frac{\text{Total expenses}}{\text{Total fund assets or AUM}}\times 100TER=Total fund assets or AUMTotal expenses​×100

For example, if a fund has ₹1 crore in expenses and ₹100 crore in assets, the TER is 1%.

Because it is taken out of the scheme’s assets, investors do not usually pay it separately in cash.

Why it matters

A higher TER reduces your net returns over time, especially in long-term investing.

This is why index funds and other passive funds often try to keep TER lower than actively managed funds.

When comparing mutual funds, TER is one of the most important cost factors to check alongside performance and risk.

Quick example

If two funds both earn 10% before costs, but one has a 0.5% TER and the other has a 2% TER, the first fund leaves you with a higher return after expenses.

That difference may look small in one year, but it can compound over time.

In plain words

TER is basically the fund’s running cost.
Lower is generally better, but the cheapest fund is not always the best one if its strategy, risk, or returns do not fit your goals.

TL;DR

TER in a mutual fund is the annual fee charged for managing the fund, expressed as a percentage of assets. It is deducted from returns, so a lower TER usually helps investors keep more of their gains.