Your brokerage switched clearing firms, usually to cut costs or after a merger, and your introducing broker still owns your account relationship while the new clearing firm holds the assets. SIPC coverage continues without a gap, but download your cost-basis and tax-lot records before the transfer date and re-sign margin paperwork if you borrow.
The distinction matters more than it sounds. Your introducing broker is the name on your statements and the entity you call; the clearing firm is the back office that actually holds securities in custody, settles trades, and issues 1099s. A firm can swap clearing partners without you losing a single share, because the assets move between two SIPC members, not out of SIPC protection.
What surprises people is how much of the plumbing is invisible until it isn't. In a typical conversion, account numbers stay the same, but ACH links, check-writing, and debit cards can go dark for 3 to 10 business days. Dividend and interest payments often land 1 to 3 business days later than usual, because the new clearing firm runs its own processing calendar. FINRA Rule 4311 requires the introducing broker to give you written notice at least 30 days before the transfer date, so that letter in your inbox is not spam.
Margin is the exception to the "it just works" rule. Margin agreements do not transfer; if you borrow or trade options on margin, you may need to sign a fresh agreement with the new clearing firm before those privileges come back.
- SIPC coverage is continuous: The Securities Investor Protection Corporation protects each customer up to $500,000, including $250,000 for cash claims, and coverage carries over without a gap when accounts move between SIPC members.
- Cost basis is the casualty: Tax-lot and cost-basis records are the most commonly lost item in a clearing conversion, so download your full realized and unrealized gain/loss reports before the conversion weekend.
- Margin needs a new signature: Margin agreements do not automatically transfer, and you may need to sign a new agreement with the new clearing firm before you can borrow or trade options on margin.
- Payments shift slightly: Dividend and interest payments can arrive 1 to 3 business days later because the new clearing firm runs its own processing calendar.
- Notice is required: FINRA Rule 4311 requires the introducing broker to give you written notice at least 30 days before the transfer date.
Why would my brokerage move my account to a different clearing firm?
Your brokerage is probably an introducing broker-dealer. It markets to you, opens the account, staffs the phone line, and decides what products to offer. The clearing firm behind it holds the securities, settles the trades, handles dividends and corporate actions, and files the tax forms. Pershing LLC, National Financial Services LLC (the Fidelity clearing arm) and Apex Clearing do this work for hundreds of introducing brokers between them. When a statement shows a new clearing name, the entity you have a relationship with has usually not changed at all.
The trigger is almost always a contract decision made above your head. Clearing agreements run for fixed terms, often five to seven years, and get renegotiated. A broker that gets acquired โ or acquires someone โ typically consolidates onto one clearing platform because running two costs roughly double. Others move to a cheaper per-trade or per-account provider, or their existing clearing firm exits the business line or absorbs a competitor. Per-trade clearing fees at the institutional level run in cents to low single-digit dollars, so even a small change in the rate matters when you process a few million tickets a year.
What it does not mean
A clearing conversion is not a liquidation, not a receivership, and not a sign your broker is failing. Your positions sit at the clearing firm in street name, held for your benefit under SEC Rule 15c3-3 customer protection rules, and covered by SIPC up to $500,000 per customer including $250,000 for cash claims as of 2026. Assets do not leave the DTCC chain of custody, so nothing is "in transit" in a way that puts them at risk. Separately, FINRA Rule 4311 requires at least 30 days written notice before customer accounts move to a new clearing firm, which is why the letter you got arrived well ahead of the conversion weekend.
What does change is the operational layer sitting on top of your assets: the account numbers in the back office, the statement format, the cost-basis records that must be ported across systems, and the margin agreement attached to the new clearing entity. Those are where conversions actually go wrong, and they are worth checking before the date on the notice, not after.
What actually changes for you after the transfer date?
The account number on your statement stays the same, your login still works, and Form 1099-B and 1099-DIV keep arriving from the same introducing broker โ Pershing LLC or National Financial Services LLC might be replaced as the clearing firm on the back page, but the name you call for support doesn't change. The plumbing underneath moves instead: ACH links to an outside bank and any debit card tied to the account can go dark for 3-10 business days during the conversion weekend, which is why the standard advice is to push cash in or out at least a week before the scheduled date.
Dividend and interest payments commonly land 1-3 business days later than usual during the first month, not because the money is at risk but because the new clearing firm has to map your existing payee instructions onto its own system. Margin terms are the part most people miss: your old margin agreement was signed with the outgoing clearing firm, so the new one needs a fresh signature before it will extend credit.
| Item | Before transfer | After transfer |
|---|---|---|
| Account number and login | Existing credentials | Unchanged; same portal, same number |
| ACH and debit card access | Active | Suspended 3-10 business days during conversion |
| Dividend and interest posting date | Your usual schedule | 1-3 business days later for the first month |
| Margin agreement | Signed with old clearing firm | Must be re-signed with new clearing firm |
| Options approval level | Set by old clearing firm | Re-reviewed; may be lower or require new application |
| SIPC coverage and member name | $500,000 per customer, $250,000 cash | Same $500,000/$250,000 limit; new SIPC member named on statement |
For a cash-only investor holding index funds in an IRA, nothing on that table costs a dollar except a few days of dividend delay, and the SIPC limit of $500,000 per customer (including $250,000 for cash claims) carries across without a gap because the coverage attaches to the customer, not to the firm. The row that flips the outcome is margin: a trader who sells a cash-secured put on the transfer date and finds the new clearing firm hasn't approved the margin agreement yet can be forced to close the position at a loss, or watch it expire unhedged. That's why the practical order of operations is download your full tax-lot history before the conversion date, then sign the new margin and options paperwork the day the account goes live โ not the day you need it.
How do I protect my cost basis and tax lots before the conversion?
This applies the moment you see a clearing conversion notice with a date on it, whether it arrived by email, by mail, or only as a line buried on page 3 of your statement. Under FINRA Rule 4311 the introducing broker must give you at least 30 days written notice before moving customer accounts to a new clearing firm, so you have a real window. Use it on the one thing that is genuinely painful to rebuild: the tax-lot history attached to every position.
- Download three reports, not one. From your broker's tax or cost-basis centre, pull the unrealized gain/loss report, the realized gain/loss report for the current year, and full tax lot detail for every open position. Take both CSV and PDF if the platform offers both. CSV preserves lot-level rows you can sort; PDF is your evidence if the portal later changes or locks. Fifteen minutes for most accounts.
- Check which lots are actually reported. Covered shares (bought after 1 January 2011 for equities) carry basis that the transferring firm is required to send along. Noncovered shares, plus most pre-2011 purchases, often arrive with nothing. If your account holds DRIP shares from the 1990s or an inherited position, flag those rows in the spreadsheet now.
- Log anything unusual in the past 12 months. Multiple lots on the same ticker, a wash sale from a repurchase inside the IRS 30-days-before-and-30-days-after window, a spinoff or merger, a return of capital distribution reported on Form 1099-DIV. These are the rows that break during a conversion. A screenshot and a one-line note per event takes ten minutes and saves weeks.
- Do the same for your IRA, even though basis works differently. Traditional IRA cost basis lives on Form 8606, not on the clearing firm's system, so download your Form 8606 filings and any nondeductible contribution records. If your IRA holds a position with a recent Roth conversion or recharacterization, export that trail too.
- Save the files outside the broker's portal. Download to your own drive or email them to yourself. Portals go read-only during the conversion weekend, which typically runs 48-72 hours, and ACH transfers and debit cards can be suspended for 3-10 business days. You will not be able to log in and grab a file you forgot.
- After the transfer, reconcile against your first statement. Line up every open position, quantity, and per-lot basis against your downloaded file. Expect dividend postings 1-3 business days later than usual through the first month; that is normal timing drift, not an error. Basis mismatches are the real signal.
- Report discrepancies in writing within 30 days. Email or secure-message your broker with the position, the expected basis, the basis showing in the new system, and your supporting file attached. Industry estimates put accounts needing manual cost-basis correction at 5-15% of a typical clearing conversion, and average resolution at 2-6 weeks. A written timestamp matters more than a phone call here.
- If basis arrives missing entirely, rebuild it yourself in parallel. Trade confirmations, prior-year Form 1099-B, and dividend reinvestment statements are the source documents. For old noncovered shares, your own purchase records or a reasonable reconstruction with documentation is what the IRS expects, so keep the workpaper even after the broker corrects its system.
The failure mode is a partial download. Investors grab the unrealized gain/loss summary because it is the first report they see, assume it contains the lots, and discover after the conversion that it only shows aggregate basis per position. Once the old portal is decommissioned, that detail is gone and you are reconstructing 20 years of DRIP purchases from paper confirmations.
One thing that does not change: your SIPC coverage. The limit stays at $500,000 per customer including $250,000 for cash claims, and it follows the customer relationship, not the clearing firm's name on your statement. If the new clearing firm is a Pershing, National Financial Services, or Apex, that is plumbing behind your introducing broker, and your coverage travels with you.
Will SIPC coverage be continuous during the transfer?
SIPC protection follows your assets, not the name on the statement. The limit is $500,000 per customer at each SIPC member firm, and within that cap no more than $250,000 can be a cash claim. Your introducing broker is almost certainly a member, and so is the clearing firm taking over the books โ Pershing LLC, National Financial Services LLC, Apex Clearing and the rest of the back-office names that show up on retail statements all carry membership. Because the transfer moves assets between two members, the coverage runs without interruption.
There is no gap day. Assets move through DTCC's ACATS system, and the receiving clearing firm assumes custody the moment they land. If the outgoing firm had been in trouble, the failure would have to happen at a moment when your positions sat nowhere, which is not a state ACATS produces. In practice the messy part of the 48-72 hour conversion weekend is that you cannot log in or trade, not that your shares are briefly uninsured.
The limit is per customer, and it is not as large as people assume. An IRA and a taxable account at the same clearing firm generally count as separate customers, which roughly doubles your headroom. But a joint account, a trust and a single account held by the same person can be treated differently, and a household with $1.4 million spread across two accounts at one clearing firm may be carrying real uninsured exposure. If that is you, ask the clearing firm directly what excess SIPC coverage it carries โ many maintain supplemental policies through Lloyd's of London or a similar underwriter, often into the tens of millions per account. Get it in writing before the conversion date, because the answer is not in the transfer notice.
One distinction that gets lost in these conversations: SIPC does not cover market losses, and it never did. If your holdings fall 30% during the conversion weekend, no claim exists. SIPC steps in when a member firm fails and customer assets are missing โ the Madoff liquidation is the case everyone cites, and it is the right one, because the shortfall there was in securities that were never purchased. A clearing transfer is not a failure event, and treating it like one is a good way to waste a morning on hold.
Do I need to sign a new margin agreement or options agreement?
Yes, in almost every case. Your margin agreement is a contract between you and the clearing firm, not the introducing broker whose name is on your statement. When Pershing LLC hands the books to Apex Clearing, or National Financial Services takes over from a smaller correspondent, the old agreement dies with the old clearing relationship. The new firm will mail or email a fresh margin agreement and a new options agreement, usually bundled with the transfer notice itself, and it needs your signature before it will extend you credit or accept options orders.
Ignore those documents and nothing catastrophic happens, but your account quietly becomes cash-only. That matters more than people expect. A cash account settles equity trades on a T+1 basis, and if you buy before the proceeds from a prior sale have settled, you have created a good-faith violation. Three of those in a rolling 12-month window and the broker can restrict your account to settled-cash trading for 90 days, which effectively freezes you out of fast entries. If you trade actively, sign the margin agreement even if you never intend to borrow. Margin privileges also cover things like selling covered calls and same-day turnover of unsettled funds.
Options approval does not port over
Options approval levels are a separate approval, granted by the clearing firm's risk desk under its own criteria, and a Level 2 approval at your old firm tells the new one nothing. You re-apply, you answer the same questions about income, net worth, and trading experience, and approval is not guaranteed. A firm that has tightened its options criteria since your last application can come back with a lower level or a denial, and there is no appeal beyond picking up the phone and asking a human to review it. If you sold cash-secured puts or ran spreads, check whether your new level still covers those strategies before you place an order that gets rejected.
Then read the rate schedule. Margin interest is set by the clearing firm and varies widely, from roughly 5.5% to 12% annualized on the same debit balance depending on the firm and your account size, and the new firm's default rate is often the one printed on the schedule you never open. If you carry a debit balance through the conversion, ask for the current base rate in writing before the transfer date. At retail brokerage balances, a 3-point difference on a $25,000 debit is about $750 a year, which is worth a fifteen-minute phone call.
What should I check on my first statement after the transfer?
The first statement produced by the new clearing firm is the only clean baseline you will ever get. Treat it like a closing document: read it line by line against the last statement from the old clearing firm, and do it on the day it lands, because most clearing firms have a 60-day window for fixing cost-basis errors without escalation. After that, corrections tend to require a written research request, and the average wait for a cost-basis dispute to resolve is 2-6 weeks.
- Positions, share quantities, and cash. Line up every ticker, every share count, and both cash lines (unsettled and settled) against your pre-transfer records. Off-by-one errors on fractional shares and missing residual cash sweeps of $20-$300 are the most common discrepancies, because sweep balances often sit outside the ACATS transfer itself and get moved by a separate internal journal.
- Cost basis and acquisition dates, lot by lot. This is the one that costs real money. Check that each tax lot carries the original purchase date and per-share cost the introducing broker had on file. If the old firm transmitted only average cost, or transmitted nothing, the new clearing firm will show a blank basis and report the sale to the IRS as non-covered on your Form 1099-B. Industry estimates put tax-lot data requiring manual correction at 5-15% of accounts in a clearing conversion.
- Dividends and interest expected around the transfer date. Payments due in the conversion window can arrive 1-3 business days later than usual for the first month. Look at the ex-date, not the pay date, and confirm the position was held on the record date at the new clearing firm. A missing dividend is usually a timing artifact, not a lost payment, but it will not self-correct if the paying agent sent it to the old clearing firm's DTC account.
- Fee lines, including margin interest. Some introducing brokers charge a $50-$100 account transfer fee, and the new clearing firm may add an annual maintenance fee on small balances. More important, if you held a margin debit through the conversion, check how interest was accrued across the transition; you can end up paying two partial months of interest, or paying at the old firm's rate for a period you were already at the new one.
- Beneficiary designations. These do not always ride along with the account. A TOD or beneficiary designation is a contract term held at the introducing broker or the clearing firm depending on how the account was papered, and a conversion is exactly when it can silently drop. Log in, open the beneficiaries screen, and confirm names, dates of birth, and percentages are still there. Do this for both the taxable account and the IRA.
- Account features and standing instructions. Dividend reinvestment is the usual casualty. So are automatic cash sweeps into a money market fund, recurring ACH transfers, check-writing privileges, and standing limit orders, which generally do not survive the conversion and should be re-entered. Confirm dividend reinvestment is set to "on" at the position level, not just the account level.
- SIPC coverage and the new firm's capacity. Confirm in writing which entity is the SIPC member carrying your account, since coverage attaches to the member, not the brand on your statement. The limit is $500,000 per customer, of which up to $250,000 can be cash claims. If your combined balance at that clearing firm exceeds $500,000, or if you hold both a taxable account and an IRA there, look at whether the accounts are titled so that each is treated as a separate customer, and consider moving excess cash out of the sweep into a position.
The item people most often skip is cost basis, because the numbers look plausible and nobody checks them until they sell. A lot that shows the wrong acquisition date turns a long-term gain into a short-term one, and a lot with no basis at all means the IRS assumes a basis of zero when the 1099-B reports the sale as non-covered. Pull your own records now: your old statements, your trade confirmations, and any year-end Form 1099-B you saved. If the new clearing firm's figures disagree, file a written correction request with both the introducing broker and the clearing firm inside the 60-day window. Also watch the wash-sale rule across the conversion if you sold anything in the 30 days before or after the move, since a same-position purchase inside that window can disallow the loss even if the two trades sit at different firms.
What if something goes wrong with the transfer?
Almost every transfer closes clean. The ones that don't usually fail in two places: a cost basis that arrives wrong or missing, and assets that don't arrive at all. Industry estimates put the manual cost-basis correction rate in clearing conversions at 5 to 15 percent of accounts, which sounds small until it's your Schedule D. So the first move is a written one. Email your introducing broker's customer service, not the clearing firm, because the introducing broker owns the client relationship even though Pershing, National Financial Services, or Apex Clearing holds the assets. State the specific lot, date, and dollar figure. Keep a dated log of every call, reference number, and promise. Phone reps at call centers have no authority to fix a tax lot, and an unwritten request tends to vanish when the ticket gets reassigned.
If two weeks pass with no resolution, escalate. FINRA governs the transfer itself under Rule 4311, which requires at least 30 days' written notice before customer accounts move and sets the framework for how the two firms coordinate. FINRA's investor complaint portal and the SEC's online tips-and-complaints form both accept filings at no cost, and a complaint creates a paper trail the firm must answer. Realistically, the average cost-basis dispute after a conversion takes 2 to 6 weeks to clear, and most are resolved by the firm pulling the original trade confirmations from its archive. Ask for that directly. A written request for the trade blotter for the affected lots often ends the argument faster than anything else you can say.
Missing assets are a different animal. If positions or cash vanish during the conversion window and the firms can't locate them, SIPC covers up to $500,000 per customer, with a $250,000 cap on cash claims as of 2026. But read the condition carefully: SIPC only steps in when the brokerage fails and customer property is missing from its custody. It does not cover market losses, and it does not resolve a dispute between two solvent firms about where a position lives. In a normal clearing conversion, both the transferring and receiving firms are operating, so SIPC is a backstop that almost never gets triggered. The real remedy is a written demand and, if the assets stay missing past 30 days, a FINRA arbitration claim, which has a six-year eligibility window from the date of the act.
The ugliest scenario is a basis error you already acted on. If you sold a position during or after the conversion using the wrong cost basis the clearing firm reported, your Form 1099-B is wrong, and so is the return you filed with it. That means an amended return. The IRS gives you three years from the original filing date or two years from when the tax was paid, whichever is later, to file a 1040-X, and you'll attach the corrected 1099-B or a written statement explaining the discrepancy. While you're in there, check for a wash sale you didn't intend: the IRS window is 30 days before and 30 days after a sale, and a conversion that delays a trade by a few days can accidentally create one. Fix the basis first, then the wash sale, then amend. Doing it in the other order means amending twice.
Frequently Asked Questions
Is it bad if my brokerage transfers my account to another clearing firm?
No. Moving accounts between clearing firms is routine back-office plumbing, not a warning sign about your broker's health, and your securities stay segregated and protected by SIPC up to $500,000 in total, including $250,000 for cash claims. Charles Schwab, Fidelity and Robinhood have all run large clearing conversions in the past decade without customers losing positions.
What actually deserves your attention is the paperwork that does not survive cleanly: cost basis records, dividend reinvestment instructions, and margin terms that may reset to the new firm's house rates. Check those two items within 30 days of the transfer date.
Will my account number change when my broker changes clearing firms?
Usually not. Most introducing brokers keep your account number and repaper only the clearing agreement behind the scenes, so your statements and tax forms continue under the same identifier. Account numbers change mainly when the broker itself is acquired or when you are moved onto an entirely different custody platform.
Linked services are the fragile part. ACH links, debit cards and check-writing privileges can go dark for 5-10 business days while the new clearing firm rebuilds the connection, so move any scheduled bill payments to another account before the conversion weekend.
Does SIPC coverage transfer with my account?
Yes, coverage is continuous provided both the old and new clearing firms are SIPC members, which nearly all US retail brokers are. The limit is $500,000 per customer in total, of which up to $250,000 can be cash, and it applies per account capacity rather than per account. SIPC has protected roughly 1 million investors since it was created in 1970.
Note what SIPC does not cover: market losses, and any position a fraudulent broker never actually bought. If your statements show a stock you never held, that is a claim, not a covered loss.
What happens to my cost basis when my account is transferred?
Cost basis is supposed to transfer with your positions, and in most conversions it does, but the data often arrives truncated or wrong. Basis is reported on Form 1099-B, and the IRS expects you to have your own records even when the broker supplies them.
Download your tax lot detail as a CSV or PDF before the conversion date, capture every purchase date and per-share cost, then reconcile it against your first statement from the new clearing firm. Fixing a basis error in April is far harder than catching it in October.
Do I need to sign a new margin agreement after a clearing firm change?
Often yes. The margin agreement is a contract between you and the clearing firm, so when the clearing firm changes, the old agreement no longer binds anyone and your account can default to cash-only until you sign a new one.
This matters most if you sell covered calls, hold a margin balance or trade unsettled funds. A cash-only account will reject those orders, and unsettled proceeds cannot be reused until the trade settles. Watch the new agreement's rates too: house margin rates commonly sit between 7.5% and 11.5% depending on the firm and your balance tier.
How long does a clearing firm transfer take?
The conversion itself is compressed into a weekend, typically 48 to 72 hours starting Friday after market close, so positions appear under the new clearing firm on Monday morning. Full reconciliation, where cash balances, cost basis and pending transactions are matched line by line, usually takes 1 to 2 weeks after that.
Expect a few days of read-only access while everything settles. Trades you place during the gap are generally executed normally, but transfers out and check requests can be paused until reconciliation closes.