Brokerage account fee calculator

A flat $75 account fee is not a $75 problem. Pulled from a growing balance year after year, it also costs you the growth it can no longer earn. This works out the real number.

How the math works

A flat fee charged every year is an annuity running in reverse. Each year's fee leaves the account and never earns another dollar, so its true cost is its future value at your return — not the dollar figure on the statement. For the recurring fee, the calculator uses the future value of an ordinary annuity. For a one-time charge, it uses the future value of a single sum.

Here fee is the dollar amount, r is the expected annual return, and n is the number of years. The recurring fee is treated as charged at year-end, which is the conservative assumption — a fee billed at the start of each year costs slightly more. The zero-return case collapses to the plain sum, fee × n, because there is no growth to forgo.

Worked example

Take an account carrying a $75 annual custodial fee — the figure legacy and full-service firms still commonly charge — held for 30 years, with the balance earning the S&P 500 long-run real return of 7.0%. Over 30 years you hand the firm $2,250 in fees. The real cost is $7,085, because each year's $75 also gave up three decades of compounding. The gap — $4,835 — is growth that went nowhere.

Now add a single $75 transfer-out fee at the start, the kind charged when you move the account through the ACATS system. Left invested for 30 years at 7.0%, that one charge would have grown to $571. Together the two fees cost $7,655 against $2,325 actually paid — about 3.3× the sticker.

The industry has spent a long time describing these as small. A $75 line item is small. Thirty years of its compounding is not.

When this calculator is wrong

This tool models flat, dollar-denominated fees. It is deliberately narrow, and it misses in a few ways worth naming.

• It only handles flat fees, not percentage drags. A fund expense ratio (0.03% for a broad index fund, 0.66% for the average active fund) and an advisor's 1.00% assets-under-management fee scale with your balance and usually cost far more than a flat account fee. Those live in the investment fee calculator. Account fees stack on top of them; they do not replace them.
• It assumes the fee and the return hold steady. Real returns swing, and the fee is charged in losing years too — exactly when the balance can least afford it. A constant 7.0% is a long-run average, not a promise about any single decade.
• It assumes you keep the account the whole horizon. If you close or move the account in year five, the recurring fee stops there. Shorten the years input to match how long you actually expect to hold it.
• The one-time fee assumes the money would have been invested. If you were going to withdraw and spend it anyway, there is no growth to forgo and the opportunity cost is just the fee itself.

One editorial point the fee schedule will not make for you: a flat account fee you can erase by moving to a broker that charges $0 is one of the few guaranteed returns in investing. You cannot control the market. You can control whether $75 a year leaves the account. The exception is a transfer-out fee, which is charged by the firm you are leaving — but the firm you move to often reimburses it.

What to do with the result

Pull up your broker's fee schedule tonight and look for three lines: an annual account or custodial fee, an inactivity fee, and a transfer-out (ACAT) fee. The large discount brokers charge $0 for the first two; inactivity fees still run $50 to $200 a year at firms that impose a minimum. If you find a recurring charge, the number this calculator gives you is the case for moving. The transfer-out fee is the one cost of leaving, it is charged once, and the new broker will often cover it if you ask.

Common questions

Do most brokers still charge account fees?

The large discount brokers dropped per-trade commissions and standing account fees years ago, so for a plain taxable or retirement account at one of them the annual fee is often $0. Flat fees survive mainly at full-service and legacy firms, in specialty accounts, and as inactivity or transfer-out charges. The only way to know yours is to read the fee schedule.

Is a brokerage account fee the same as an expense ratio?

No, and conflating them is the most common mistake. An expense ratio is a percentage skimmed from a fund's assets — 0.03% on a broad index fund, 0.66% on the average active fund. A brokerage account fee is a flat dollar charge for holding the account itself. They are separate costs that stack, and for a large balance the percentage fee is usually the bigger one.

What is an ACAT or transfer-out fee?

It is a flat charge — commonly $75, ranging from $0 up to about $100 — levied by the firm you are leaving when you move your holdings to another broker through the Automated Customer Account Transfer Service. It is a one-time cost, not recurring, and the receiving broker frequently reimburses it as an incentive to bring your assets over.

Can I avoid brokerage account fees?

Usually. Flat annual and inactivity fees are avoidable by holding your account at a broker that does not charge them. A transfer-out fee is harder to dodge because the firm you are leaving sets it, but it is charged once and is often reimbursed by the firm you join. Percentage fees — expense ratios and advisory fees — are a different problem and need a different tool.