Three things to check before you trade:

• Your broker’s transition status.
• Your account type — cash, standard margin, or portfolio margin.
• What happens if your account develops an intraday margin deficit.

Find out what applies to your account →

• What changed
• Has my broker moved?
• Intraday margin deficit
• 90-day freeze
• $2,000 vs $25,000
• Cash accounts
• 0DTE
• Who gains

One more thing applies to every margin account now, not just active traders: you need enough equity in the account all day long, not just when the market closes.

Which Rules Apply to My Account?

Answer a few questions about your account. This tool won’t calculate a dollar deficit or tell you your account is “safe” — it tells you which framework likely applies and what to verify with your broker.

Account type

Cash Standard margin Portfolio margin Not sure

Has your broker moved to the new intraday margin standards?

Yes No Not sure

Account equity ($)

Were you previously flagged or restricted as a pattern day trader?

Yes No

Do you trade options, including 0DTE?

Yes No

Do you use leverage (borrowed buying power)?

Yes No Not sure

What Actually Changed on June 4, 2026

On June 4, 2026, FINRA replaced the pattern day trader framework in Rule 4210 with a new intraday margin standard — and three specific things disappeared from the rulebook.

The SEC approved FINRA's amendments to Rule 4210 on April 14, 2026 (Release No. 34-105226), using its accelerated-approval process. FINRA published the implementing rule, Regulatory Notice 26-10, on April 20, 2026. The amendments took effect 45 days later, on June 4, 2026.

• Apr 14, 2026 — SEC approves the amendments
• Apr 20, 2026 — FINRA publishes Regulatory Notice 26-10
• Jun 4, 2026 — Amendments take effect
• Oct 20, 2027 — 18-month phase-in period ends

GONE FROM THE RULEBOOK

The "pattern day trader" designation that counted your trades, the $25,000 minimum equity requirement, the day-trading buying power formula, and the automatic day-trade-call restrictions that came with it.

One thing didn't change: the maintenance margin requirements in Rule 4210(c). FINRA didn't touch how much margin-eligible equity you need to hold — it changed when that requirement gets checked. More on that in the maintenance-margin section below.

Table 1. Timeline of the 2026 rule change (dated to FINRA and SEC sources)

Date	What happened
April 14, 2026	SEC approves FINRA's amendments to Rule 4210 (Release No. 34-105226)
April 20, 2026	FINRA publishes Regulatory Notice 26-10
June 4, 2026	Amendments take effect — 45 days after the Notice
2026 (after effective date)	FINRA issues Regulatory Notice 26-11 with interpretations and investor-education materials
October 20, 2027	18-month phase-in period ends; every firm must be on the new standard

The Catch: The 18-Month Transition

FINRA gave brokerage firms up to 18 months after the rule took effect to actually switch their systems over — and some simply haven't yet.

DEPENDS ON YOUR BROKER

FINRA's own investor guidance puts it plainly: a firm might continue operating under the old day-trading margin requirements during the transition, or it might migrate to the new system sooner. FINRA's advice to investors is to contact their firm directly.

That's why two traders, at two different brokers, can be reading different rulebooks on the same day in 2026. One account might already be running on intraday margin deficits. Another might still be flagging pattern day traders and holding them to the old $25,000 minimum — legally, because the transition window doesn't close until October 20, 2027.

It also means an article, a broker help page, or a forum post describing the $25,000 rule isn't necessarily outdated. It may be describing that firm's customers accurately, today.

Old Rule vs New Standard

Here's the side-by-side of what each regime actually requires.

What Is an Intraday Margin Deficit?

An intraday margin deficit is the gap between what your account is required to hold in margin and what it actually holds, measured the moment a transaction creates that gap — not just at the close.

New Rule 4210(d)(2) requires every FINRA member firm to calculate an intraday margin deficit for each customer margin account — except good-faith accounts and portfolio margin accounts — on any day that includes what the rule calls an IML-reducing transaction.

IML stands for intraday margin level: roughly, how much cushion your account has above its required margin at a given moment. A transaction that pulls that cushion down — opening a new position, for instance — can reduce your IML and trigger a deficit calculation.

If more than one transaction happens in a single day, firms use the sequence that produces your largest deficit for that day, unless the timing of trades can be clearly demonstrated.

Satisfying a Deficit — and the 90-Day Freeze

You're expected to cover a deficit as promptly as possible — and the rule runs two different clocks, not one.

NEW AND WATCH IT

Clock one: an intraday margin deficit stays outstanding — unresolved, on the books — until you satisfy it, or until immediately after the close of business on the 15th business day after it occurred. That's the outer limit before it's considered to have timed out.

Clock two is shorter and triggers something more serious. If you fail to satisfy a deficit by the close of business on the 5th business day after it occurs, and your firm determines you've made a practice of being slow to satisfy deficits, the rule requires a freeze: your firm must block you from opening new short positions or increasing a debit balance (other than by closing an existing short) for 90 calendar days, or until the deficit is satisfied — whichever comes first.

There's a floor on what counts toward a "practice": FINRA excludes deficits that don't exceed the lesser of 5% of your account equity or $1,000, and deficits that occur under extraordinary circumstances. A single small or unusual deficit isn't meant to trigger a freeze on its own.

Maintenance Margin Now Applies All Day

The 25% maintenance margin requirement didn't change — but firms now have to confirm you're meeting it throughout the trading day, not just when the market closes.

Rule 4210(c) still requires you to hold at least 25% of the current market value of your long margin-eligible equity securities. That percentage is unchanged by the 2026 amendments.

What's new is the intraday framework built around it: firms now have the tools, and in many cases the obligation, to check that requirement in real time or on an end-of-day basis — instead of only at the close. Your own firm can set a higher house requirement than FINRA's 25% floor.

$2,000 vs $25,000: What the Minimums Really Mean

$25,000 is gone; $2,000 was never about day trading in the first place.

The $25,000 figure that's disappearing was always specific to the old pattern-day-trader framework. It no longer applies to anyone at a firm that has migrated to the new standard.

The $2,000 figure is a separate, older requirement: it's the minimum equity needed to trade with leverage — borrowed buying power — in a margin account. You can open and use a margin account with less than $2,000 in it, but you're limited to trading with your own available cash, unleveraged.

Cash Accounts Were Never Covered

None of this — old or new — applies to a cash account, because the pattern-day-trader rule never did either.

The PDT framework, and the intraday margin standard that replaced it, govern margin accounts. A cash account was never subject to the $25,000 minimum or the day-trade count, and it isn't subject to an intraday margin deficit calculation.

What does constrain a cash account: settlement timing (trades generally settle one business day after the trade date), good-faith violations (selling a security bought with unsettled funds before those funds settle), and free-riding (buying and selling a security before paying for the purchase). None of that changed in 2026.

Portfolio Margin and 0DTE Options

Portfolio margin accounts sit outside the new deficit calculation — but they're not ignored, and 0DTE options trading is explicitly covered either way.

Portfolio margin accounts are excluded from the Rule 4210(d)(2) deficit calculation that applies to standard margin accounts. They're not exempt from intraday risk oversight, though: portfolio margin accounts carrying less than $5 million in equity must maintain intraday margin substantially similar to what's required at the end of the day.

Zero-days-to-expiration (0DTE) options — contracts that expire the same day they're traded — are explicitly within scope of the new standard. FINRA cited intraday risk from 0DTE trading as one reason the old, close-of-day-only framework needed updating.

How Brokers Are Implementing It

FINRA gives firms two ways to comply, and your day-to-day experience depends on which one your broker picked.

A firm can monitor accounts in real time and block a trade before it creates a deficit. A firm can instead calculate deficits once, at the end of the day, and issue a margin call for any account that's short. Some firms combine both approaches across different account types or products.

That flexibility is exactly why two traders at two different firms can have different day-to-day experiences under the same rule — beyond just whether their firm has migrated yet. We're not naming specific firms' approaches here; ask your own broker which model they use (the checklists below have the exact question).

Who Gains and Who's Newly Exposed

The change is a trade-off, not a one-directional win — and FINRA's own framing treats it that way.

Smaller accounts gain the most visible benefit: a trader without $25,000 to park in a margin account is no longer locked out of frequent trading by that threshold alone, once their firm has migrated.

Traders who lean on leverage intraday face a faster, more continuous check: a deficit can surface mid-session instead of only at the close, and repeated, unaddressed deficits carry a real penalty — the 90-day freeze.

Firms gain operational flexibility — real-time or end-of-day, their choice — and a framework that scales to products the old PDT rule wasn't built around, like 0DTE options.

None of this is a signal to trade bigger. FINRA's investor guidance stresses that frequent margin trading remains high-risk regardless of which framework applies to your account.

Table 3. What applies to which account type

Account type	Covered by the deficit rule?	Main constraint
Cash	No — not a margin account	Settlement timing, good-faith violations, free-riding
Standard margin	Yes	Intraday margin deficit under Rule 4210(d)(2); 25% maintenance margin all day
Good faith	No — excluded by rule	Same settlement-based constraints as a cash account
Portfolio margin	Excluded from (d)(2); parallel oversight if equity is under $5 million	Portfolio margin methodology plus intraday risk controls

Table 4. Intraday margin deficit mechanics

Term	Meaning
IML (intraday margin level)	How much cushion an account has above its required margin at a given moment
IML-reducing transaction	A trade or transaction that lowers that cushion
Intraday margin deficit	The resulting shortfall the firm must calculate and have the customer satisfy
"As promptly as possible"	The rule's standard for how quickly a deficit should be addressed — not a fixed deadline
15 business days outstanding	The point at which, if still unsatisfied, a deficit's "outstanding" status ends
90-day freeze	Blocks new short positions and debit-balance increases for 90 calendar days when a customer fails to satisfy a deficit by the 5th business day and shows a pattern of doing so

Checklists

Copy any of these into your notes app before you call or message your broker.

FAQ

Related Reading

• How margin accounts work
• Brokerage account basics
• Capital gains and trading taxes
• How to choose a broker
• Investing for beginners

Sources

• SEC, Release No. 34-105226, order approving amendments to FINRA Rule 4210 (April 14, 2026): sec.gov/file/34-105226
• FINRA, Regulatory Notice 26-10, "FINRA Adopts New Intraday Margin Standards to Replace the Day Trading Margin Requirements" (April 20, 2026): finra.org/rules-guidance/notices/26-10
• FINRA, investor guidance, "Understanding the New Intraday Margin Requirements" (2026): finra.org/investors/insights/intraday-margin-requirements
• FINRA Rule 4210, current text (paragraphs (c) and (d)(2))
• Regulatory Notice 26-11 (interpretations and investor-education materials)

This article is general information, not investment advice. It's based on FINRA Regulatory Notice 26-10, FINRA's investor guidance on intraday margin requirements, and the SEC's order approving the underlying rule change (Release No. 34-105226), verified on October 11, 2026. Your brokerage firm's own rules and your margin agreement control what applies to your account.

Last updated: October 11, 2026 — re-check this page before and after October 20, 2027, when the phase-in period ends.