The cost of trading a single futures contract has two parts: a margin deposit that locks up a fraction of the contract’s total value while your position is open, and a set of per-trade charges that come off your account each time you buy or sell. For a widely traded contract like the E-mini S&P 500, the margin runs about $24,200, and a full round-turn (opening and closing the trade) typically costs somewhere between $4 and $8 in combined commissions, exchange fees, and regulatory charges. Smaller “Micro” contracts scale both numbers down by roughly a factor of ten.
The Margin Deposit
Margin is not a purchase price or a down payment. It’s collateral — a performance bond that stays locked in your account until you close the position or the contract expires, guaranteeing you can cover potential losses. Federal law requires futures commission merchants to hold these customer funds separately from the firm’s own money.1Office of the Law Revision Counsel. 7 U.S. Code 6d – Dealing by Unregistered Futures Commission Merchants or Introducing Brokers Prohibited
The deposit is a fraction of the contract’s notional value, usually between 3% and 12% depending on how volatile the underlying asset is. CME Group lists a maintenance performance bond of roughly $24,200 for one E-mini S&P 500 contract.2CME Group. E-mini S&P 500 Futures Margins With the index near 5,900 and a $50 multiplier, that contract controls about $295,000 in total exposure, so the deposit represents roughly 8% of what you actually stand to gain or lose. Less volatile contracts require a smaller percentage. Commodities prone to sharp price swings can demand more.
Your broker can, and usually will, set requirements above the exchange minimum. These “house margins” give the brokerage an extra cushion, especially during volatile stretches. Whatever the number, expect it to move: exchanges revise margins periodically as market conditions change.
Day-Trading Margins Are Much Lower
If you open and close a position within the same session, many brokers cut the margin requirement dramatically. One brokerage lists a day-trading margin of $400 for the E-mini S&P 500, compared to an overnight maintenance margin above $26,000 at the same firm.3AMP Futures. Futures Margin Calculator The Micro E-mini S&P 500 may require as little as $40 intraday versus roughly $2,600 overnight.
The tradeoff: if you’re still holding when the overnight session begins, the full exchange margin snaps into effect. An account funded only for day trading can face an immediate margin call or forced liquidation the moment the session rolls over.
Per-Trade Fees
Every futures trade carries direct, per-contract charges. They apply on each side of the trade — once when you open and again when you close — or as a single “round-turn” fee covering both. There are three components.
- Broker commissions. The charge your brokerage collects for routing and executing your order. Depending on the service tier, this runs from under $1 to several dollars per contract per side. Discount brokers offering self-directed platforms tend to charge less than full-service firms.
- Exchange and clearing fees. The exchange and its clearinghouse charge separately for matching orders and guaranteeing settlement. For the E-mini S&P 500, a non-member trading electronically pays roughly $1.38 per side, while exchange members pay less. Fees vary by product, venue, and membership status.4CME Group. Clearing and Trading Fees
- NFA assessment fee. The National Futures Association charges $0.02 per side on every futures contract traded in the United States, billed to customers through their broker. It applies to all contract sizes and all domestic exchanges. The only exception is for traders who hold formal membership privileges on the exchange where the trade is executed.5National Futures Association. NFA Assessment Fees FAQs6National Futures Association. 9016 – NFA Bylaw 1301: NFA Assessment Fee Questions and Answers for FCMs
Add them up and a round-turn on one E-mini S&P 500 contract typically costs about $4 to $8 in combined charges. For a trader placing dozens of round-turns a day, that arithmetic gets serious quickly.
Some brokers also add an inactivity fee, commonly around $10 per month, waived once you meet a minimum activity or balance threshold.7TradeStation. Service Fees Not every broker charges one, so check the fee schedule before opening an account.
The Bid-Ask Spread
Beyond the fees on your broker’s schedule, every trade carries an implicit cost baked into the price itself. The bid is the highest price a buyer will pay; the ask is the lowest a seller will accept. The gap between them is money you give up the moment you cross the market.
Heavily traded contracts have tight spreads. The E-mini S&P 500 usually trades at a spread of 0.25 index points, or one tick, which equals $12.50 per contract. Buy at the ask and later sell at the bid, and you’ve handed over $12.50 before a single commission hits. Less liquid contracts have wider spreads, and the cost applies again on the way out.
Platform and Market Data
Trading platforms often carry a monthly subscription running from about $30 to over $200 depending on features. Some brokers waive the fee once you cross a monthly volume threshold; lower-volume traders keep paying it as a fixed cost.
Real-time price data is a separate line item. CME Group’s fee schedule shows non-professional subscribers paying $1.50 per month for basic top-of-book data from a single exchange, or $11.35 for full depth-of-market. A bundle covering all four CME Group exchanges (CME, CBOT, NYMEX, and COMEX) runs $4.50 for top-of-book or $34.25 for depth-of-market. Professional subscribers pay substantially more, with the listed real-time device fee at $125.75.8CME Group. CME Group Market Data Fee List
Professional versus non-professional classification isn’t about how much you trade. You’re classified as professional if you work for a financial institution, are registered with a securities or commodities regulator, manage money for others, or use the data for any commercial purpose, among other criteria. Even employment at a bank in an unrelated role can flip you into the professional bracket. If none of those categories apply and you trade only for your own account, you typically qualify as non-professional and pay the lower rate.
Contract Multipliers and Tick Values
How much a price move actually costs or pays you depends on the contract’s multiplier. The E-mini S&P 500 uses a $50 multiplier, meaning every one-point move in the index changes your account by $50 per contract.9CME Group. E-mini S&P 500 Futures and Options The minimum tick is 0.25 points, which equals $12.50 per contract. A 30-point index move is 120 ticks, or $1,500 per contract.
Micro contracts use one-tenth the standard multiplier. The Micro E-mini S&P 500 has a $5 multiplier, so a one-point move is worth $5 and a minimum tick is $1.25.10CME Group. Micro E-mini S&P 500 Index Futures Margin requirements and exchange fees scale down in step, which is why Micros are a common starting point for newer traders.
Costs of Holding Positions Too Long
Most traders close positions before expiration, but contracts on physical commodities like crude oil, gold, or agricultural products can trigger actual delivery obligations if held through the final trading day. Delivery means paying for storage, insurance, and transport — carrying charges that are a significant reason most speculators exit early.
Even without delivery, staying in the market across contract months costs money. When the front-month contract nears expiration, you “roll” by closing it and opening the same position in the next month. Each leg carries the full set of commissions, exchange fees, and spread cost, so rolling effectively doubles your transaction costs. Some brokers discount calendar spread orders used for rolling, but exchange and regulatory fees still apply on both sides.
Financially settled contracts, like the E-mini S&P 500, don’t involve physical delivery. At expiration, the clearinghouse credits or debits the cash difference based on the final settlement price. You still face rollover costs if you want to keep continuous exposure, but no delivery notice will arrive unexpectedly.
Margin Calls and Forced Liquidation
Once a position is open, your account is marked to market every day: the clearinghouse credits gains and debits losses in cash after each session. If losses drag your balance below the exchange’s maintenance level, you’ll get a margin call demanding you top the account back up to the initial margin.
The window is short. ICE Futures rules define the standard maximum as fewer than five business days for customers, counted from the day the account became undermargined.11ICE Futures US, Inc. Margin Rules In practice, brokers often demand action within hours, especially on leveraged day-trading accounts. Miss the call and the broker can liquidate positions without further notice. Some tack on a flat fee for the forced sale; one major brokerage charges $75 per margin or risk liquidation on futures accounts.7TradeStation. Service Fees
Taxes on Futures Profits
Futures get a distinctive tax treatment under federal law. Under Section 1256 of the Internal Revenue Code, gains and losses on regulated futures contracts are automatically split 60% long-term and 40% short-term, regardless of how long you actually held the position.12Office of the Law Revision Counsel. 26 USC 1256 – Section 1256 Contracts Marked to Market The split applies even to a trade opened and closed in the same session.
That’s a meaningful discount for active traders. For 2026, the top federal rate on long-term capital gains is 20%, while short-term gains are taxed as ordinary income at rates up to 37%.13IRS. IRS Releases Tax Inflation Adjustments for Tax Year 2026 A futures trader in the top bracket pays a blended rate of about 26.8% (60% × 20% + 40% × 37%), compared to the full 37% a stock day-trader owes on identical short-term profits.
The catch: Section 1256 contracts are also marked to market at year end for tax purposes. If you’re still holding an open position on December 31, the IRS treats it as though you sold and immediately repurchased it at fair market value on the last business day of the year. Unrealized gains and losses are reported on Form 6781 and taxed under the same 60/40 rule.14IRS. Form 6781 – Gains and Losses From Section 1256 Contracts and Straddles You can’t defer gains by holding into the new year, but if you track your positions at year end, you also won’t be surprised by a bill you didn’t plan for.