Can You Buy Options on Margin? Accounts, Equity, and Calls

You cannot buy options on margin in the usual sense — federal rules require you to pay the full premium in cash for any put or call with nine months or less until expiration. The one carve-out is for longer-dated contracts (LEAPS) with more than nine months left, which can be margined at 75 percent of their current market value. Even so, a margin account matters for options traders, because almost every strategy beyond a single long call or put — spreads, iron condors, naked writing — requires one.

Why You Have to Pay the Full Premium

Regulation T, at 12 CFR Part 220, sets broker-dealer credit rules and hands the specifics for options over to FINRA and the exchanges.¹ FINRA Rule 4210 then states the operative requirement: a long put, call, or warrant with nine months or less until expiration must be covered by a deposit equal to at least 100 percent of the purchase price.² In other words, the contract has no loan value.

The reasoning is that options are wasting assets on a fixed clock. A stock can recover after a drawdown; an option that finishes out of the money is worth zero. Lending against something that can lose all of its value in weeks would leave brokerages exposed to unrecoverable losses. So even though your options may sit in a margin-enabled account, the broker’s credit line does not finance the purchase. The premium comes out of cash or settled funds.

The LEAPS Exception

Listed options with more than nine months to expiration — commonly called LEAPS — are the only category of long options that carry loan value. FINRA Rule 4210 sets the deposit at a minimum of 75 percent of current market value rather than the full premium.² The same 75 percent floor applies to over-the-counter puts, calls, and stock index warrants with more than nine months remaining.

Watch the clock. Once a contract crosses inside the nine-month window, the 100 percent requirement takes over, and the broker will look for additional cash or equity to close the gap.

What a Margin Account Actually Unlocks

You can buy a single call or put in a cash account. Multi-leg strategies are a different story. A spread — long one option, short another on the same underlying — depends on the margin account recognizing that the two legs offset. Without that infrastructure, the brokerage would treat each leg on its own and demand full collateral on the short side as if the long side did not exist. That makes vertical spreads, iron condors, and butterflies impractical or impossible in a cash account.

Access to these strategies is gated by tiered approval. The exact labels vary between firms, but the framework generally looks like this:

Level 1: covered calls only, where you already own the underlying shares.
Level 2: buying calls and puts outright, plus cash-secured puts.
Level 3: spreads, iron condors, butterflies, and other multi-leg strategies that need a margin account.
Level 4: uncovered (naked) call and put writing, the highest-risk tier for both the trader and the firm.

Each higher level involves a separate application covering income, net worth, trading experience, and objectives. Brokerages can also apply house margin requirements stricter than the regulatory minimums set by the Federal Reserve, FINRA, and the exchanges.³ A strategy that clears the FINRA rules can still be off-limits under your broker’s internal policies.

Margin When You Sell (Write) Options

Selling an option to open a position creates an obligation, not a right. If the buyer exercises, you deliver shares on a short call or buy shares on a short put at the strike. Your broker requires collateral behind that obligation, and how much depends on whether the position is naked, cash-secured, or covered.

Naked Options

Uncovered options carry the heaviest margin requirements because the potential loss is theoretically unlimited on calls and substantial on puts. Under FINRA Rule 4210 and exchange rules, the margin figure for a naked equity option generally starts with a percentage of the underlying stock’s market value, adds the premium received, and subtracts any out-of-the-money amount, with a minimum floor so the number never drops too low.² It is recalculated daily off the underlying’s closing price, so a sharp adverse move can produce a same-day demand for more equity.

Cash-Secured Puts

A cash-secured put is the simpler alternative. You sell a put and hold enough cash to buy the shares at the strike if assigned. Because the obligation is fully collateralized by cash, some brokerages allow this at Level 2 without margin. The cash stays reserved and unavailable for other trades until the short put closes.

If You Get Assigned

Assignment converts the option obligation into a stock position, and the margin rules shift with it. Under Regulation T, the resulting stock generally carries a 50 percent initial margin requirement and a maintenance requirement of at least 25 percent.¹⁴ If your equity does not cover those requirements after assignment, expect an immediate margin call.

Minimum Equity You Need in the Account

Two equity floors matter before any options-related margin activity begins, and both are ongoing requirements rather than one-time deposits.

The $2,000 Minimum

FINRA Rule 4210 requires at least $2,000 in equity to use margin privileges. If the total cost of a security is under $2,000, you pay the full purchase price rather than borrowing any portion.² Drop below $2,000 through market losses and the brokerage may restrict the account or liquidate positions to restore compliance.

The $25,000 Pattern Day Trader Threshold

FINRA’s day-trading rule applies to options as well as stocks. You are classified as a pattern day trader if you make four or more day trades within five business days, and those day trades exceed six percent of your total trades in the margin account over the same window.⁵ For options, a day trade means opening and closing the same contract on the same day.

Once flagged, you must keep at least $25,000 in equity (cash plus eligible securities) in the margin account on any day you day trade. Start the day below that number and you are limited to closing existing positions until you top up.⁵ Exceeding day-trade buying power triggers a call that has to be met within five business days by depositing funds, transferring securities, or selling non-margined positions. Funds deposited to meet that call are frozen for two business days after deposit.

Margin Calls and Forced Liquidation

A margin call is a demand for additional cash or securities when equity falls below the required level. Options traders run into two versions:

Initial (federal) call: issued when you do not meet the initial requirement at the time of the trade. Under Regulation T, you generally have three business days from the trade date to deposit the funds.⁶
Maintenance call: issued when ongoing equity drops below the maintenance requirement, which is at least 25 percent of long market value under FINRA rules, though many firms set their house minimum between 30 and 40 percent.³

One point traders regularly miss: your brokerage is not required to call you before it sells. Firms have the contractual right to liquidate positions without prior notice to bring the account back into compliance, and the firm picks which positions go, not you.⁶ In a fast-moving market, that can mean a position closed at the worst possible price. Keeping a cash cushion above the minimum is the most reliable defense.

1
eCFR. 12 CFR 220.12 – Supplement: Margin Requirements
2
FINRA.org. 4210. Margin Requirements
3
SEC.gov. Understanding Margin Accounts
4
Cboe Global Markets. Strategy-Based Margin
5
FINRA.org. Day Trading
6
FINRA.org. Know What Triggers a Margin Call