What investing actually costs you, added up honestly

Every charge on a trade

Your contract note lists all of these. Most people never read one.

Note which are levied by whom. Brokerage is the only one your broker sets, and it is often the smallest of them. A broker advertising zero brokerage has not made the trade free.

STT, the current rates

Securities transaction tax is charged by the government on every transaction in listed securities. It is deducted automatically and cannot be claimed back or set off against your income tax.

The derivatives rates changed on 1 April 2026 under Budget 2026. Futures rose from 0.02% to 0.05%, and options from 0.10% to 0.15% on premium and from 0.125% to 0.15% on exercise. Equity delivery, intraday and mutual fund STT were left unchanged.

The stated reason was to reduce speculative activity in derivatives, following the SEBI findings that around 90% of individual F&O traders lose money.

What it looks like on a real trade

Take a delivery purchase of ₹1,00,000 of shares, sold later for ₹1,10,000, at a discount broker charging zero brokerage on delivery.

On a ₹10,000 gain that is around 2.5% of the profit. Noticeable and not damaging. These are illustrative figures and exact amounts vary by broker and state.

Now change one thing: frequency. Because these costs apply per transaction, an investor making four transactions a year pays this four times. Someone making two hundred pays it two hundred times, from the same capital. The strategy has to overcome that entire drag before earning anything.

DP charges, the one that surprises people

The depository participant charge is levied when you sell shares from your demat account. It is a flat amount per company, per day, regardless of quantity or value.

That structure has a consequence worth planning around. Selling ₹5,00,000 of one company costs one DP charge. Selling ₹20,000 across ten companies costs ten DP charges, on a much smaller amount.

So a portfolio of many tiny holdings is disproportionately expensive to exit. It is one more practical argument, alongside the diversification one, for holding fewer positions in meaningful sizes rather than many token ones.

Buying incurs no DP charge, and mutual funds held outside demat do not attract it at all.

Costs in funds work differently

With a mutual fund there is no brokerage and no DP charge. Instead you pay an expense ratio, a yearly percentage deducted from the fund itself rather than billed to you.

This is a different shape of cost and it deserves more attention, not less, because it applies to your entire balance every year rather than to a transaction.

Under the SEBI (Mutual Funds) Regulations, 2026, effective 1 April 2026, fund costs are now shown in three parts: the base expense ratio, brokerage and transaction costs, and statutory levies charged on actuals. Caps were reduced across slabs, with index funds and ETFs moving from 1.00% to 0.90%.

The other fund cost worth knowing is the direct versus regular plan gap, often 0.5% to 1% a year, which over twenty years can consume a large share of your final amount. See direct vs regular plans.

How to pay less

• Trade less. By far the largest lever. Every avoided transaction saves the whole stack of charges with certainty.
• Use a flat fee broker if you decide for yourself. On larger orders the difference against a percentage model is substantial.
• Use direct plans for mutual funds. Same fund, same manager, lower fee.
• Prefer index funds where you have no strong reason to pay for active management.
• Avoid many tiny holdings, because DP charges are per company rather than per rupee.
• Hold past twelve months where the investment case allows, which changes tax from 20% to 12.5% with an exemption attached.
• Check the full charge list, not just the advertised brokerage.

And the reason this matters more than it feels like it should: costs are certain and returns are not. You cannot control whether a share rises. You can control, precisely and permanently, how much of any rise you keep. It is the only part of investing where effort produces a guaranteed result.