ACATS is the U.S. brokerage system for transferring eligible customer account assets between participating firms without selling every investment.
The Automated Customer Account Transfer Service (ACATS) is the U.S. system that participating financial firms use to transfer eligible customer accounts and assets from one firm to another. The receiving firm normally initiates the request, the carrying firm validates the account information, and National Securities Clearing Corporation (NSCC), a DTCC subsidiary, coordinates the standardized transfer workflow.
An ACATS transfer can move investments in kind, meaning the owner keeps the securities rather than selling and repurchasing them. It does not guarantee that every holding is transferable, that market activity can continue during the transfer, or that the receiving firm will reimburse fees.
| Party | Main role |
|---|---|
| Customer | Opens a compatible receiving account, supplies the old account statement, chooses a full or partial transfer, and reviews exceptions |
| Receiving firm | Collects the instruction, checks the new account, and submits the transfer request through ACATS |
| Carrying firm | Validates or takes exception to the request and delivers eligible account assets and records |
| NSCC | Operates ACATS and provides the standardized communication and settlement workflow |
| DTC, fund company, or other agent | Supports movement of particular securities or positions when the asset and parties are eligible |
The receiving firm and carrying firm remain responsible for their customer, recordkeeping, and regulatory duties. NSCC operates the service; it does not decide whether a particular investment is suitable for the customer.
A full transfer instructs the carrying firm to transfer the account’s eligible assets and close or restrict the old account as the process proceeds. Under FINRA Rule 11870, a validated full-transfer instruction generally causes the carrying firm to freeze the account against new purchases and withdrawals. Transactions already in progress may still need to settle.
Cash or securities received after the main transfer, such as a dividend or interest payment, may move later as a residual credit. This is why a zero balance on the first completion date does not always mean the entire transfer lifecycle is finished.
A partial transfer identifies the positions or cash amount to move. Assets left behind remain at the carrying firm, and the account normally stays open. The customer must identify positions precisely; vague descriptions, incompatible quantities, or changed holdings can cause an exception.
The current FINRA rule for eligible member-to-member transfers uses a sequence rather than one universal promise that every transfer will finish in a fixed number of days.
The regulatory clock is not the same as the time between a customer’s first phone call and final reconciliation. An incorrect account number, mismatched registration, fraud review, rejected asset, paper form, or non-ACATS party can delay the process.
| Holding or issue | Possible treatment | Question to ask before transferring |
|---|---|---|
| Exchange-listed stocks and many bonds | Often transferable if both firms support them | Does the receiving firm custody and trade the exact security? |
| Mutual funds | May transfer, but a proprietary or closed fund can be unsupported | Can the new firm hold the same share class, and will transaction fees change? |
| Options | Open contracts require compatible approval and operational support | Is the receiving account approved for the strategy and collateral arrangement? |
| Fractional shares | Commonly not transferable as fractions | Will the carrying firm liquidate the fraction and send cash? |
| Proprietary products | May need to remain, be redeemed, or be liquidated with authorization | Is there an in-kind path, and what costs or tax consequences could follow? |
| Alternative or restricted assets | May require documents, review, or a different transfer method | What eligibility, valuation, and transfer-agent requirements apply? |
| Unsettled trades or open orders | Can delay or complicate reconciliation | Should pending activity settle or orders be canceled first? |
Do not assume that “not transferable” means “must be sold immediately.” The available choices depend on the product and firms. Selling can create market exposure, fees, or a taxable gain or loss in a taxable account.
Suppose an investor requests a full transfer containing:
The 100 whole shares and $2,000 cash may be eligible to transfer through the normal workflow. The four whole ETF shares may transfer, while the 0.6 fractional share may be sold and transferred as cash under the carrying firm’s procedures. The proprietary mutual fund may be rejected as nontransferable, requiring the customer to retain it, redeem it, or choose another permitted treatment. The later dividend may arrive as a residual credit after the main account transfer.
This example shows why “full transfer” does not necessarily mean every item arrives at the same time or in the same form.
For covered securities, firms have regulatory duties concerning transfer of cost-basis information. Customers should still retain confirmations and statements and compare tax lots after the move. Missing, incomplete, or differently displayed basis data can affect gain and loss calculations.
Account registration also matters. An individual account, joint account, trust account, corporate account, traditional IRA, and Roth IRA are not interchangeable labels. A transfer between unlike registrations may require additional documentation or a different transaction. Liquidating investments or distributing retirement assets can have tax consequences; seek qualified tax advice for a specific situation.
A full transfer can restrict activity at the carrying firm. A customer who expects to trade, withdraw cash, meet an option obligation, or satisfy a margin call during the transfer should discuss the operational constraints with both firms before submission.
The carrying firm may charge a transfer or account-closing fee, and the receiving firm may or may not reimburse it. Even when the security transfers, the new firm can apply different commissions, mutual-fund fees, margin terms, cash-sweep rates, or service levels.
FINRA has warned firms about fraudulent ACATS requests. Customers should protect account credentials, review transfer alerts promptly, and contact their firms through verified channels if they did not authorize a request. Firms may pause a suspicious instruction while investigating it.
An in-kind transfer preserves the position, so its price can rise or fall during the process. If a nontransferable asset must be sold and later repurchased, the customer can also be out of the market and may incur tax or transaction costs.
This article is for general financial education. Transfer eligibility, timing, fees, account restrictions, and tax treatment depend on the firms, assets, account registration, and current rules; it is not individualized investment, tax, or legal advice.