Clearing firms are the intermediaries that stand between the buyer and seller of every securities trade, holding your assets in custody, settling the transaction, and guaranteeing that both sides get what they agreed to even if one party defaults. Every brokerage account you own depends on one. The clearing firm is the entity that actually holds your shares and cash, keeps the records that produce your 1099, and enforces the margin rules on your account, even when you never see its name on your app.
What a Clearing Firm Does for Your Account
The job breaks into four overlapping pieces, and each one touches your account whether you notice it or not.
Custody. When you look at your brokerage balance, those securities and that cash sit inside the clearing firm’s custody infrastructure, not at the brokerage whose app you use. The clearing firm is responsible for safekeeping the assets and moving them correctly whenever you trade.
Record-keeping. Clearing firms track every position, dividend, interest accrual, and balance change across millions of accounts. That data feeds the consolidated Form 1099 you get at tax time. For the 2026 tax year, clearing firms must furnish 1099-B statements to investors by February 15, 2027, with a possible extension to March 15 for certain trust structures.1Internal Revenue Service. Publication 1099 General Instructions for Certain Information Returns
Risk management. The clearing firm sets margin requirements and collateral demands, monitors the capital adequacy of every broker-dealer it services, and can force the liquidation of positions when account equity falls below required thresholds.
Margin lending. When you buy on margin, the clearing firm is extending the credit. It calculates the maintenance minimum, issues margin calls when your equity falls short, and if you ignore a call, it has the authority to sell your holdings to cover the shortfall without your permission.
How a Trade Actually Settles
Clearing and settlement are two different steps. Clearing is the confirmation: matching the buyer’s and seller’s details so both sides agree on the security, price, and quantity. Settlement is the swap itself, when ownership of the security transfers to the buyer and cash moves to the seller.
The T+1 Cycle
Since May 28, 2024, the standard settlement cycle for most U.S. securities has been T+1: settlement occurs one business day after the trade date.2U.S. Securities and Exchange Commission. SEC Chair Gensler Statement on Upcoming Implementation of T+1 Settlement Cycle Sell shares on Monday, and the cash is officially yours on Tuesday.3Investor.gov. New T+1 Settlement Cycle – What Investors Need To Know
Not everything settles on T+1. Government securities, municipal bonds, commercial paper, and certain foreign securities remain exempt from the standard cycle.4U.S. Securities and Exchange Commission. Frequently Asked Questions Regarding the Transition to a T+1 Standard Settlement Cycle Firm commitment offerings priced after 4:30 p.m. Eastern settle on T+2.5U.S. Securities and Exchange Commission. Shortening the Securities Transaction Settlement Cycle – Small Entity Compliance Guide
Netting
Without netting, a firm processing 50,000 buys and 48,000 sells of the same stock on the same day would face 98,000 separate transfers. Netting collapses that into one net position per security per participant. The National Securities Clearing Corporation, a DTCC subsidiary, runs this through its Continuous Net Settlement system, acting as the central counterparty to virtually all broker-to-broker equity, corporate bond, and municipal bond trading in the United States.6DTCC. CNS By settlement date, each member’s open positions net down to a single long or short position per security.
Whether Your Broker Clears Its Own Trades
Not every brokerage clears its own trades, and the distinction determines who actually holds your money.
Self-Clearing Firms
A self-clearing broker-dealer handles every phase internally: execution, clearing, settlement, custody, and record-keeping. That requires substantial infrastructure and capital. The minimum net capital requirement for a broker-dealer carrying customer accounts is $250,000, and prime brokers must hold at least $1,500,000.7Financial Industry Regulatory Authority. SEA Rule 15c3-1 and Related Interpretations Large self-clearing firms typically hold far more than the regulatory floor.
Introducing Brokers
Most smaller brokerages operate as introducing brokers. They open accounts, give advice, and take orders, then hand the trade off to a clearing firm that handles settlement and custody. An introducing broker’s minimum net capital can be as low as $50,000 if it sends transactions to the clearing firm on a fully disclosed basis and doesn’t hold customer securities.7Financial Industry Regulatory Authority. SEA Rule 15c3-1 and Related Interpretations
Fully Disclosed vs. Omnibus
The relationship between an introducing broker and its clearing firm takes one of two forms. In a fully disclosed arrangement, the clearing firm knows exactly who each end customer is. It holds the client’s assets directly, sends the client statements, and handles the asset-segregation rules at the account level. Most U.S. retail brokerage accounts work this way.
In an omnibus arrangement, the clearing firm sees only the introducing broker as its customer, not the individual investors underneath. That structure increases anti-money laundering risk because the clearing firm cannot independently verify who owns the assets moving through its systems.8U.S. Securities and Exchange Commission. Staff Bulletin – Risks Associated with Omnibus Accounts Transacting in Low-Priced Securities
What Clearing Costs You
You rarely see a line for clearing on a trade confirmation, but costs are there. The most direct is the SEC’s Section 31 transaction fee, charged on the sale of securities. As of April 4, 2026, the rate is $20.60 per million dollars of transaction value.9U.S. Securities and Exchange Commission. Section 31 Transaction Fee Rate Advisory for Fiscal Year 2026 On a $10,000 sale, that’s about two cents. The fee funds SEC operations and adjusts periodically.
Beyond Section 31, clearing firms charge broker-dealers per-trade clearing fees, account maintenance fees, and technology fees. Those costs are usually built into commission structures or absorbed by brokerages offering commission-free trading. Clearing firms also earn interest on uninvested customer cash and, with customer consent, revenue from lending out fully paid securities to short sellers. If your broker has ever offered you a securities lending program, the clearing firm is the entity running those loans.
How Your Assets Are Protected If a Clearing Firm Fails
The protection system has several layers, each aimed at a different risk.
The Customer Protection Rule
The single most important regulation for your money is SEC Rule 15c3-3, the customer protection rule. It requires clearing firms to maintain physical possession or control of all fully paid customer securities and to keep customer cash in a special reserve bank account held exclusively for customers’ benefit.10eCFR. 17 CFR 240.15c3-3 – Reserves and Custody of Securities The firm cannot use that reserved cash as collateral for its own borrowing. If the clearing firm goes bankrupt, creditors cannot reach customer assets because those assets were never mixed with the firm’s own money.
Net Capital and Early Warning
Clearing firms must hold minimum liquid assets as a buffer, scaled to their activities: $250,000 for firms carrying customer accounts, $1,500,000 for prime brokers, and as low as $5,000 for broker-dealers that handle no customer funds at all.7Financial Industry Regulatory Authority. SEA Rule 15c3-1 and Related Interpretations A broker-dealer must notify the SEC the same day its net capital falls below the required minimum, and within 24 hours if capital drops below 120 percent of the minimum.11eCFR. 17 CFR 240.17a-11 – Notification Provisions for Brokers and Dealers Those early triggers give regulators a chance to intervene before a shortfall becomes a customer crisis.
SIPC Coverage
The Securities Investor Protection Corporation is a non-profit created by Congress to protect investors when a brokerage firm fails financially. SIPC covers up to $500,000 per customer for securities and cash combined, with a $250,000 sub-limit for cash.12Securities Investor Protection Corporation. Our Mission If your clearing firm collapses, SIPC works to return your assets or reimburse their value up to those limits.
SIPC does not protect you against market losses. Buy a stock at $50, watch it fall to $10, and SIPC will not make up the difference. It also does not cover losses from bad investment advice or unmet performance promises.13Investor.gov. Securities Investor Protection Corporation (SIPC) It exists for one scenario: the firm holding your account goes under and your assets are missing or frozen.
Who Watches the Clearing Firms
The Securities and Exchange Commission sets rules for market conduct and financial reporting under the Securities Exchange Act of 1934. FINRA, a self-regulatory organization registered with the SEC, examines broker-dealers directly for compliance with federal securities law and its own rules.14Financial Industry Regulatory Authority. About FINRA FINRA is not a government agency, but it can fine firms, suspend brokers, and expel members.
For most investors, the clearing firm behind a brokerage account stays invisible. You never interact with it and may not know its name. That is by design: the machinery of custody, netting, capital rules, and reserve accounts is what makes buying and selling feel instant, and it is what keeps your assets in place if the firm on your app disappears.