How to Transfer a Brokerage Account Without Creating a Tax Bill: ACATS, Fractional Shares, and Cost Basis
Moving a brokerage account does not usually create a tax bill. The key is to request an in-kind transfer, which moves eligible investments to the new brokerage without selling them. Because no sale occurs, unrealized gains generally remain unrealized—and therefore are not reported as capital gains merely because the shares changed custodians.
For example, suppose you bought stock for $12,000 and it is worth $18,000 when you switch brokers. If all whole shares transfer in kind, the $6,000 unrealized gain remains attached to the investment. You generally calculate and report the gain only when you eventually sell the shares.
However, an account transfer is not automatically tax-free in every detail. Fractional shares may be liquidated, proprietary investments may not be accepted by the new broker, and cost-basis records can arrive late or incomplete. Reviewing these issues before starting the transfer can prevent an unexpected sale or a future tax-reporting problem.
This article provides general educational information for U.S. investors. It is not individualized tax, legal, or investment advice.
What Is an ACATS Transfer?
ACATS stands for the Automated Customer Account Transfer Service. It is the industry system used to move customer accounts between participating financial institutions. ACATS is operated by the National Securities Clearing Corporation, or NSCC, which is a subsidiary of the Depository Trust & Clearing Corporation.
According to DTCC, ACATS standardizes the transfer process and can support assets such as equities, corporate and municipal bonds, mutual funds, unit investment trusts, options, annuities, and cash. Eligibility still depends on the institutions and the specific investment.
The receiving brokerage usually initiates the transfer. An investor typically opens the appropriate account at the new firm, supplies a recent statement from the old firm, and signs a transfer authorization. The new broker then sends the request through ACATS.
How long does an ACATS transfer take?
A standard transfer often takes approximately five to seven business days once it enters the ACATS system. Some brokerage firms quote seven to 10 business days to account for internal processing, rejected requests, settlement delays, or assets requiring additional review.
The Securities and Exchange Commission says that an ACATS transfer should generally take no more than six business days after the new firm enters the transfer request when there are no problems. Non-ACATS transfers and transfers involving unusual assets can take considerably longer.
A transfer can be delayed when:
- The names, Social Security numbers, or account registrations do not match.
- The investor opens the wrong account type at the receiving firm.
- Trades, deposits, withdrawals, or dividends are still settling.
- The account contains securities the receiving broker cannot hold.
- A margin balance or transfer fee leaves insufficient cash in the old account.
- The transfer form contains an incorrect account number or incomplete instructions.
How to Transfer a Brokerage Account Without Selling Investments
The safest general approach for avoiding an immediate tax bill is to transfer eligible assets in kind. Do not select a cash transfer unless you understand which investments must be sold and the potential tax consequences.
1. Open the same type of account
The registration at the receiving firm should match the account being transferred. A taxable individual brokerage account should generally move to another taxable individual account. A traditional IRA should move to a traditional IRA, and a Roth IRA should move to a Roth IRA.
Joint accounts, trusts, custodial accounts, business accounts, and inherited IRAs may require additional documentation. A mismatch in account ownership is a common reason for rejection.
2. Save detailed records before starting
Download records while you still have full access to the old brokerage’s website. At a minimum, save:
- A recent monthly or quarterly account statement.
- The completed transfer request or confirmation.
- A current list of positions and cash balances.
- Transaction history covering purchases, sales, and reinvested dividends.
- A lot-level cost-basis report showing purchase dates, share quantities, and adjusted basis.
- Recent trade confirmations and corporate-action notices.
- Screenshots of basis information that may not appear on the statement.
These records provide a reference if positions arrive without their purchase dates or basis. They may also be necessary for older or noncovered securities for which a broker is not required to report basis to the IRS.
3. Choose a full or partial in-kind transfer
A full transfer attempts to move the entire account and may result in the old account being closed. A partial transfer moves only the assets specified on the request and usually leaves the original account open.
In either case, verify that the request says in kind rather than “liquidate and transfer cash.” An in-kind instruction generally transfers whole shares without changing their tax lots.
4. Confirm every asset is supported
Ask the receiving broker to review the account before submitting the transfer. Do not assume that every investment appearing at the old firm can be held at the new one.
Confirm support for:
- Individual stocks and exchange-traded funds.
- Broker-specific or institutional-class mutual funds.
- Corporate, municipal, Treasury, and other bonds.
- Options, including spreads and contracts close to expiration.
- Over-the-counter, restricted, or foreign securities.
- Alternative investments, limited partnerships, and annuities.
- Cryptocurrency and other digital assets.
An unsupported asset may be rejected, remain at the old broker, or be liquidated, depending on the instructions and the firms’ policies. Ask for the treatment in writing before approving a full transfer.
5. Monitor the transfer and residual activity
Check both accounts for validation notices or rejections. Avoid trading affected positions while the transfer is underway because open orders and unsettled transactions can delay the process.
Cash, dividends, interest, and other activity may arrive after the primary positions through a residual sweep. Keep the old account accessible until every expected payment has reached the new broker.
Fractional Shares: The Small Position That Can Create a Taxable Sale
Fractional shares are one of the most common exceptions to a fully in-kind transfer. ACATS generally moves whole shares, while fractional interests usually cannot transfer in kind between firms.
During a full transfer, the old broker may sell the fractional portion and send the proceeds as cash. That sale can create a reportable capital gain or loss in a taxable brokerage account, even if every whole share transfers successfully.
Fractional-share tax example
Assume an investor owns 10.35 shares of a stock. The 10 whole shares move to the new broker, but the old broker sells the remaining 0.35 share for $70. If the adjusted basis allocated to that fractional interest is $50, the sale creates a $20 capital gain:
$70 sale proceeds − $50 adjusted cost basis = $20 capital gain
If the fractional interest was held for one year or less, the gain is generally short term. If it was held for more than one year, the gain is generally long term. The same holding-period rules apply if the sale produces a loss, although capital-loss deduction rules and wash-sale rules may affect how the loss is used.
Review the old broker’s liquidation confirmation to identify the sale date, proceeds, basis, and tax lot used. When applicable, the broker should include the transaction on Form 1099-B for the year of the sale.
If the account has many dividend-reinvestment positions, several small fractional sales can occur. The amounts may be modest, but each transaction should still be reconciled against the year-end tax form.
Cost Basis and Holding Period: What Should Carry Over
Cost basis is generally the amount used to calculate the taxable gain or loss when an investment is sold. It commonly begins with the purchase price and may be adjusted for commissions, stock splits, return-of-capital distributions, wash sales, reinvestments, and other events.
In an eligible in-kind transfer, the investment’s original acquisition date, adjusted basis, and holding period generally follow the security to the receiving firm. The transfer does not reset the basis to the market value on the transfer date.
For example, if you bought 100 ETF shares for a total adjusted basis of $8,000 and transferred them when they were worth $13,000, the basis should remain $8,000. It should not become $13,000 simply because the assets moved to a different broker.
Why basis information may be missing
Securities and cash can arrive before the corresponding basis records. A temporary blank or “unknown” basis does not necessarily mean the records are permanently lost. Nevertheless, investors should follow up if the information does not appear after the firms have had time to process it.
Basis can be incomplete or difficult to verify for:
- Shares purchased before mandatory broker basis-reporting rules applied.
- Investments previously transferred from another institution.
- Dividend-reinvestment plans with numerous small tax lots.
- Inherited or gifted securities.
- Employee stock-plan shares.
- Securities affected by mergers, spin-offs, or return-of-capital payments.
- Noncovered securities for which the broker does not report basis to the IRS.
How to verify the transferred basis
Compare the new broker’s records with the final records from the old broker on a lot-by-lot basis. Check the acquisition date, number of shares, adjusted basis, covered status, and short-term or long-term designation for each lot.
Do not rely only on the portfolio’s total cost. Two accounts can show the same aggregate basis while assigning the basis to different lots, which may affect future tax-lot selection and reported gains.
If something is wrong, contact both firms promptly. Provide statements, trade confirmations, and the transfer confirmation. Keep written records of any correction request and do not sell the affected investment until you understand how the broker will report its basis.
When a Brokerage Transfer Can Trigger Taxes or Reporting
The transfer itself may be tax-neutral, but transactions completed before, during, or because of the transfer can create tax consequences.
Selling investments before transferring cash
If you sell securities in a taxable account and transfer the resulting cash, the sales generally create reportable capital gains or losses. Moving the cash afterward does not reverse those transactions.
Before choosing a cash transfer, estimate the gain or loss for every position. Pay particular attention to concentrated holdings, low-basis stock, short-term gains, and positions subject to wash-sale adjustments.
Non-transferable investments
Proprietary mutual funds, restricted securities, certain foreign holdings, expiring options, alternative investments, fractional shares, and other unsupported assets may not move through ACATS. Possible treatments include:
- Leaving the asset at the old broker through a partial transfer.
- Moving it through a separate manual process.
- Exchanging it for a transferable share class, if permitted.
- Selling it and transferring the proceeds as cash.
The last option may create a taxable gain or loss in a taxable account. Confirm the consequences before authorizing liquidation.
Direct IRA transfers versus indirect rollovers
A properly completed direct transfer from one IRA custodian to another IRA of the same tax type is generally not taxable. The money or investments move institution to institution rather than being paid to the account owner.
An indirect rollover is different. The distribution is paid to the investor, who generally has 60 days to deposit an eligible amount into another retirement account. Withholding, rollover eligibility, the once-per-12-month IRA rollover limitation, and possible taxes or penalties can complicate the transaction.
Moving traditional IRA assets to a Roth IRA is also different from a same-type transfer. That transaction may be a taxable Roth conversion even when completed directly. Confirm the account types before submitting the request.
Digital assets and 2026 cost-basis reporting
Digital assets often cannot be transferred through the same ACATS process used for traditional securities. A platform may require a separate wallet transfer, may restrict outgoing transfers, or may require the asset to be sold.
Federal broker reporting for digital assets is also changing. Reporting of gross proceeds on Form 1099-DA generally begins with certain transactions occurring in 2025, while broker reporting of basis for covered digital assets generally begins for certain assets acquired on or after January 1, 2026. The exact treatment depends on the asset, transaction, custody arrangement, and effective rules.
Investors remain responsible for maintaining accurate acquisition dates and basis records, including records for assets moved between brokers or wallets. A transfer between wallets you control is generally not the same as a sale, but associated fees and missing basis records can complicate later reporting.
Final Checklist: Move the Account and Verify the Tax Records
Use this checklist before and after requesting a brokerage transfer:
Before the transfer
- Open the matching account type at the receiving broker.
- Ask whether both firms participate in ACATS.
- Confirm whether the transfer will be full, partial, and in kind.
- Verify that the new broker can accept every position.
- Ask how fractional shares and unsupported assets will be handled.
- Review transfer-out fees and any fee-reimbursement offer.
- Download statements, transaction history, and lot-level basis records.
- Allow recent trades, dividends, deposits, and withdrawals to settle.
- Ask how long the account may be unavailable for trading.
While the transfer is pending
- Avoid trading or placing new orders in affected positions.
- Monitor both firms for rejection or validation notices.
- Correct ownership, account-number, or registration problems promptly.
- Track any fractional-share sales and resulting cash proceeds.
After the transfer
- Confirm that every whole-share position arrived.
- Reconcile the cash balance, fractional-share proceeds, and transfer fee.
- Watch for residual dividends, interest, and other delayed payments.
- Compare acquisition dates and adjusted basis lot by lot.
- Save the final statement from the old broker and the first complete statement from the new broker.
- Review Form 1099-B for any fractional or required asset sales.
- Resolve missing basis information before selling transferred securities.
What to Do Next
Start by asking the receiving brokerage for an asset-by-asset eligibility review and written details about its ACATS process. Then save complete statements and basis reports before authorizing the transfer. Choose an in-kind transfer where possible, monitor fractional-share liquidations, and verify every tax lot after the assets arrive.
If the account contains inherited property, gifted shares, large unrealized gains, partnership interests, employee stock, cryptocurrency, or unusual retirement assets, consult a qualified tax professional before authorizing a sale or rollover. The goal is not merely to move the account—it is to preserve the records needed to calculate the correct tax result when an investment is eventually sold.