A fee schedule is the only document where a broker states its real prices. It is also written for compliance, not for clarity — dozens of line items, footnotes that modify earlier lines, and rates that depend on account type, venue, and currency. Most traders open it once, feel dizzy, and go back to trusting the marketing page.
Reading it is a skill, and it takes about an hour to learn. This walkthrough gives the reading order, the line types to identify, and the traps that hide between them.
Fee schedules are built from a few line types: commission/fee formulas (per share, per contract, or percent), minimums, pass-throughs, periodic charges, financing rates, and currency conversion. Read in this order: how trade fees are computed, what minimums do to small orders, what recurring charges apply regardless of trading, what borrowing costs, and what currency movements cost. The final number that matters is your own estimated annual bill — computed with your order size and frequency, not the headline rate.
Line type 1: the trade-fee formula
Find the line describing ordinary order execution and identify its pricing unit. Per-share pricing (so many cents per share) scales with order size in shares; percentage pricing scales with notional value; per-contract pricing applies to derivatives. The same broker can use different units for different products.
Then look immediately beneath it for the two modifiers that change everything: the minimum charge per order and the maximum cap (if any). A “0.1% commission” with a $1 minimum is a different product for a $500 order (0.2% effective) than for a $50,000 order (0.1%). The formula line tells you almost nothing until the minimum line is applied.
Finally check whether the rate varies by venue, order type, or account tier. “From 0.05%” in an ad usually means the best tier — the schedule shows what your tier actually pays.
Line type 2: pass-throughs and regulatory fees
These lines carry names like exchange fees, clearing fees, transaction levies, and stamp or transaction taxes. They are usually small per trade and easy to dismiss — and some genuinely are negligible. But they are charged on every trade, and for high-turnover styles they join the round-trip bill like any other line.
The reading skill here is classifying: which of these are fixed by regulation (same at every broker, so not a differentiator), and which are broker pass-throughs where the broker may add a margin (comparable across brokers). Regulatory lines tell you about the market; pass-through margins tell you about the broker.
Line type 3: periodic charges that ignore your trading
Scan for lines charged by time, not by trade: platform or market-data subscriptions, account maintenance, inactivity fees, withdrawal fees. These apply whether you trade once or a hundred times in the period.
For an active trader they may be worth paying. For a small or infrequent account they can be the largest cost line of the year — an inactivity fee is effectively a negative edge on doing nothing. Convert every periodic line to an annual figure and compare it to your expected account activity before choosing a plan.
Line type 4: the financing table
If you ever hold margin, this is the most consequential table in the document: the annual rate charged on borrowed balance, often tiered by balance size and by currency, and sometimes marked “subject to change.” Note which reference rate it tracks and how often it reprices.
Read it the way you will use it: annual rate divided by 365, times your expected notional, times your expected nights. A “reasonable” 8% annual rate is 0.022% per night — small on one night, structural over a quarter.
If the schedule also lists rates paid on idle cash, read that table too — the spread between what the broker earns on your cash and what it pays you is a real, recurring line that never appears on a trade confirmation.
Line type 5: currency conversion terms
If your account settles in one currency and you trade in others, find the conversion terms: an explicit conversion fee, a spread quoted against a reference rate, or a forced auto-conversion on settlement. Note both directions — entering and leaving — because you pay the round trip.
These lines matter more than their quiet appearance suggests: on foreign securities, conversion can rival or exceed the commission. The schedule will state the mechanism; your job is to convert it into a percentage and remember it applies on both ends.
| Line type | Question it answers | Convert it to |
|---|---|---|
| Trade-fee formula + minimums | What does each order cost me? | % of my typical order |
| Pass-throughs and taxes | What adds on per trade? | % of my typical order |
| Periodic charges | What does existing cost me? | Annual amount |
| Financing table | What does borrowed time cost? | % per night on my notional |
| Currency terms | What does crossing borders cost? | % per conversion, both ways |
The last column is the point: every line becomes honest when expressed in units of your own trading.
Same $10,000 trade: the commission jumps from a theoretical $2.50 to $5.00 once the minimum charge applies, pass-through fees add a trivial $0.20, actually crossing the spread costs $5.00, and the monthly platform fee allocates to about $2.00 per trade at this frequency. The total is $12.20, about 0.122% of trade value. The broker's headline “0.025%” commission rate alone is only $2.50 — once the minimum, pass-throughs, spread, and platform fee are added in, the real cost is close to five times that figure.
Any line with an asterisk, “except”, “subject to”, or “as of” is a line that can change under conditions you have not read yet. Read every footnote attached to a line you care about — the exceptions are where schedules keep their surprises.
- I found the ordinary execution line and its pricing unit.
- I applied the minimum charge to my typical order size.
- I listed every periodic charge and converted it to an annual amount.
- For margin products, I computed the per-night financing cost on my expected notional.
- For foreign securities, I know the conversion cost in both directions.
- I read every footnote attached to the lines above.
Frequently Asked Questions
The schedule is dozens of pages. Do I really read all of it?
You read the lines that apply to what you actually do: your products, your order sizes, your currencies, your margin usage. That is usually a handful of lines — but you find them by scanning the whole structure once, which is the hour.
Are “zero commission” brokers’ schedules boring?
Rarely. Zero-commission schedules usually contain the other line types in force: minimums on some products, pass-throughs, financing, conversion, and periodic fees. The commission line being zero makes the remaining lines more important, not less.
How often should I re-read it?
At least when your activity pattern changes — new products, new markets, first margin use — and whenever the broker sends a terms-update notice, which typically announces the exact lines that changed.
