When you file IRS Form 4547, the $1,000 government deposit doesn't land in a Seedling account or a government wallet. It lands in a Section 530A custodial brokerage account opened in your child's name at Robinhood Financial LLC, with BNY Mellon as the custodian of the underlying securities, protected by SIPC insurance. That's the default setup, and it's the setup most families keep.
This article walks through that chain — who holds the money at each layer, what each entity actually does, and what happens if any of them fails.
The Short Answer
- Robinhood Financial LLC is the broker-dealer. They execute trades, run the app, and are the legal owner-of-record for the 530A account.
- BNY Mellon is the custodian. They hold the actual securities on behalf of Robinhood's customers, in segregated accounts.
- SIPC insurance covers up to $500,000 per account ($250,000 in cash) if Robinhood ever fails. This is not market-loss insurance — it covers custody failures, not bad investments.
- Seedling does not hold money at any point. We automate contributions into the Robinhood account.
The Stack, Layer by Layer
Layer 1: You (the filer / funder)
Money sits in your bank account, FDIC-insured up to $250,000 per depositor per bank. When you contribute, it moves via ACH through Plaid (read How Seedling Works for the contribution path) into the 530A.
Layer 2: Seedling (optional automation layer)
Seedling never holds your money. It identifies qualifying purchases, batches the round-up amounts, and initiates ACH transfers from your linked bank into your child's 530A. The money exists in your bank until the ACH clears at Robinhood — there is no intermediate Seedling-owned account.
Layer 3: Robinhood Financial LLC (the broker-dealer)
Robinhood is a FINRA-registered broker-dealer and SEC-registered broker-dealer, partnered with the U.S. Treasury to offer Section 530A accounts. The 530A custodial account is opened in your child's name, with you as the filing parent/guardian. Robinhood:
- Handles the $1,000 government deposit when the IRS approves Form 4547.
- Executes buy/sell orders on the fund selected for the account.
- Provides the app and dashboard you use to view balances.
- Issues the 1099 forms (if any) for tax reporting.
Robinhood is not a bank. They do not custody the actual securities — that's the next layer.
Layer 4: BNY Mellon (the custodian)
Bank of New York Mellon is the largest securities custodian in the world, holding roughly $47 trillion in assets under custody globally. For the 530A program, BNY Mellon holds the underlying shares, cash, and securities belonging to Robinhood's customer accounts in segregated custody — meaning your child's assets are legally separate from Robinhood's corporate balance sheet.
This separation is the single most important thing to understand. If Robinhood as a business goes bankrupt tomorrow, the securities in your child's 530A do not become part of Robinhood's bankruptcy estate. They continue to belong to your child. This is the same structure that protects every brokerage account in the U.S.
Layer 5: SIPC insurance (the backstop)
The Securities Investor Protection Corporation (SIPC) is a federally mandated nonprofit that insures brokerage accounts against custodial failure. Coverage:
- Up to $500,000 per account, including up to $250,000 in cash.
- Covers losses from a brokerage failing, not losses from the market dropping.
- Restores missing securities if a broker cannot produce them.
Most major brokerages, including Robinhood, carry additional private insurance on top of SIPC. Robinhood's additional coverage runs into the millions per account through a combination of Lloyd's of London syndicates. Read SIPC and Your 530A for how SIPC specifically applies to 530A accounts.
What Each Layer Protects Against
| Risk | Protected By | How |
|---|---|---|
| Your bank fails | FDIC | $250,000 per depositor, per bank |
| Robinhood goes bankrupt | BNY Mellon custody + SIPC | Your securities are segregated; SIPC backstops any gap up to $500k |
| BNY Mellon fails | Federal Reserve oversight + SIPC | BNY Mellon is a systemically important bank with Fed oversight. Their failure would trigger federal intervention; SIPC would still apply to your brokerage balance |
| Hackers steal from your account | Robinhood security + SIPC | Robinhood covers unauthorized activity; SIPC covers broker-held custody failure |
| The market drops 40% | Nothing | Market risk is not insured. That's why diversification and time horizon matter |
The most common confusion: SIPC does not protect you from bad investments. If your child's 530A holds an index fund and the market drops 30%, SIPC doesn't restore the loss. SIPC protects you if the broker fails — if securities are missing or unaccounted for, SIPC makes the customer whole up to coverage limits.
Seedling's Exact Role
Seedling is the automation layer. We:
- Connect to your bank through Plaid (read-only access to transactions).
- Apply the contribution rules you've set (round-ups, recurring, paycheck match).
- Initiate ACH transfers from your bank to your child's 530A at Robinhood.
- Track contributions against the $5,000 annual cap.
- Report progress back to you.
Seedling does not:
- Hold your money at any point.
- Hold your child's money at any point.
- Recommend or select investments.
- Act as a broker-dealer, custodian, or advisor.
- Have the ability to withdraw money from your bank or your child's 530A beyond what the rules you've set authorize.
If Seedling as a business ceased to exist tomorrow, your 530A would continue exactly as is at Robinhood. You'd lose the automation, not the account.
Can I Move the Account Off Robinhood?
Yes. 530A accounts support standard ACAT transfers (Automated Customer Account Transfer Service) to other brokerages. Many families stay at Robinhood because it's convenient. Others prefer to move to Fidelity, Vanguard, or Schwab — often because those brokerages offer wider fund menus, joint-family integration, or lower expense ratios on their proprietary funds.
See Should I Keep My 530A at Robinhood? and the Rollover Guide for when and how to move.
A rollover does not reset the $1,000 government deposit, the $5,000 annual contribution cap, or the tax-free status of the account. The securities themselves transfer in-kind; nothing is sold or taxed.
What if Something Goes Wrong?
Robinhood has an outage
Trades are delayed, not lost. Your balance and holdings remain accurate. You cannot place new trades until the outage clears.
BNY Mellon has an operational issue
Extremely rare. BNY Mellon runs redundant infrastructure and is subject to Federal Reserve oversight as a systemically important bank. Brief operational interruptions do not affect ownership of your child's securities.
Robinhood goes bankrupt
Your child's securities are held in segregated custody at BNY Mellon and do not become part of Robinhood's bankruptcy estate. SIPC coordinates the transfer of customer accounts to another broker. Historically, SIPC-managed transfers of failed brokerages have restored 99%+ of customer assets. Read What Happens If Robinhood Fails? for the full scenario.
Fraudulent activity on the account
Robinhood covers unauthorized activity on custodial accounts under the same fraud policy that applies to their taxable brokerage accounts. Report within 60 days of the statement showing the activity.
Common Questions
Is the $1,000 actually in my child's name?
Yes. The 530A account is titled in your child's name with you as the filing parent/guardian. The child becomes the sole owner at age 18.
Can I see the holdings?
Yes. Log into Robinhood, navigate to the 530A account, and you'll see the fund, share count, cash balance, and contribution history. Seedling's app also displays the current balance pulled from Robinhood.
What's the difference between "custody" and "holding"?
"Holding" is the lay term. "Custody" is the legal term for the entity that physically and legally possesses the securities on your behalf. BNY Mellon has custody. Robinhood has the account relationship. You have the ownership claim.
Is the 530A FDIC-insured?
No. 530A accounts hold securities (stocks, ETFs, mutual funds), not cash deposits. FDIC insures bank deposits; SIPC insures brokerage accounts. A 530A can temporarily hold cash awaiting investment — that cash is SIPC-insured up to $250,000.
What if I want the money at a bank instead of a brokerage?
The 530A is structurally a brokerage account. It cannot live at a bank. If you want savings-account-level safety instead of market exposure, the 530A allows a money-market-like option inside the brokerage, but the tax-free growth is wasted on a near-zero return. Most families pick a stock index fund. See Best Funds for a 530A.
The Bottom Line
Your child's 530A money sits at a large, federally regulated broker-dealer (Robinhood), with an even larger federally regulated custodian (BNY Mellon), backed by SIPC insurance. The same chain of custody protects every brokerage account in the U.S. Seedling sits outside the money chain — we move contributions in, we don't hold them.
If the 530A isn't open yet, the Form 4547 Filler opens it in about five minutes.
This article is general educational information, not legal, tax, or investment advice. Coverage limits and regulatory details are current as of publication and may change. All investing involves risk, including possible loss of principal.