The Four Ways to Hold Bitcoin in an IRA
Brian Cubellis | Chief Strategy Officer
There are four ways to hold bitcoin in an IRA: a bitcoin ETF inside a brokerage IRA, a single-custodian self-directed IRA, a collaborative multisig IRA, and a Multi-Institution Custody IRA. Only four exist because Section 408 of the Internal Revenue Code requires every IRA to have a qualified custodian, taking pure self-custody off the table. Onramp's report The Legacy Layer walks through what each structure owns, who holds the keys, and where the trade-offs sit.
There are four ways to hold bitcoin in an individual retirement account: an exchange-traded fund inside an ordinary brokerage IRA, a self-directed IRA with a single custodian, a collaborative multisig IRA, and a Multi-Institution Custody IRA. Those are the only four because Section 408 of the Internal Revenue Code requires every IRA to have a qualified custodian, which takes pure self-custody off the table for retirement assets. This guide walks through each option, what it owns, who holds the keys, and where the trade-offs sit. It draws on Onramp's new research report, The Legacy Layer: Bitcoin IRAs & Estate Planning.
Why holding your own keys is not an option inside an IRA
The qualified-custodian rule is the reason this menu has four items and not five. McNulty v. Commissioner (157 T.C. No. 10, 2021) shows where the line sits. The owner of a self-directed IRA took personal possession of the account's assets and stored them at home, and the Tax Court ruled that by doing so she had taken them out of the IRA and owed tax on the full value. The court had no quarrel with the ordinary arrangement, in which the custodian stays responsible for the account and hires specialists to help manage the assets. What it rejected was the owner holding them personally.
Every legitimate bitcoin IRA structure lives inside that line. The differences between them come down to what the account actually owns and how many institutions stand between the owner and the keys.
Option one: a bitcoin ETF in a brokerage IRA
This is the least expensive route and the one that fits accounts most savers already have. The account owns fund shares rather than bitcoin, the fund's custodian holds the keys, and the position transfers at death through a standard beneficiary designation. For many retirement savers that is entirely adequate. The structural constraint is that the account holds a claim on a fund, and the fund's bitcoin is concentrated at one custodian.
Option two: a single-custodian self-directed IRA
A self-directed IRA through an established bitcoin custodian holds actual bitcoin rather than fund shares, with simple onboarding. One institution holds everything. Most single-custodian platforms offer no formal inheritance mechanism, with River's transfer-on-death titling the notable exception. The trade-off is concentration: the entire position, and its transfer at death, depends on one company staying solvent and operational for as long as the account exists.
Option three: a collaborative multisig IRA
Here the client participates in the signing quorum directly, typically holding one key alongside a provider in a 2-of-3 arrangement. This appeals to holders who want their own hands on the process. It also means decades of personal hardware inside a retirement account, and it raises the custody-rule question McNulty was decided on. Inheritance handling varies by provider.
Option four: a Multi-Institution Custody IRA
A Multi-Institution Custody IRA holds actual bitcoin behind a 2-of-3 quorum of three independent institutions. No key material sits with the client, and no single institution can move the position alone. The custodian remains accountable for the account, the keys sit with several regulated institutions, and the owner never touches key material, which keeps the account squarely inside the line the Tax Court drew. A transfer-on-death agreement is native to the account. Withdrawals take roughly 24 to 48 hours by design, because each one is verified on live video with two separate institutions, which reduces the likelihood that a stolen credential or a coerced instruction can move the bitcoin.
Which IRA type goes around the custody?
The custody structure and the tax wrapper are separate choices. A Traditional IRA defers tax and distributes as ordinary income, with required minimum distributions from age 73. A Roth IRA is funded with after-tax income, grows and distributes free of federal income tax, and carries no lifetime distribution requirement. SEP and SIMPLE variants extend the wrapper to the self-employed and to small employers at higher contribution ceilings. Any of the four custody structures can sit inside any of these.
What the wrapper does at death is a separate and less discussed question, and it is where an IRA's advantages reverse. We cover that in What Happens to a Bitcoin IRA When You Die.
The comparison at a glance
- What the account owns. ETF in a brokerage IRA: Fund shares; Single-custodian self-directed IRA: Bitcoin; Collaborative multisig IRA: Bitcoin; Multi-Institution Custody IRA: Bitcoin
- Who holds the keys. ETF in a brokerage IRA: The fund's custodian; Single-custodian self-directed IRA: One institution; Collaborative multisig IRA: Client plus provider, 2-of-3; Multi-Institution Custody IRA: Three independent institutions, 2-of-3
- Formal inheritance mechanism. ETF in a brokerage IRA: Beneficiary designation; Single-custodian self-directed IRA: Generally none; Collaborative multisig IRA: Varies by provider; Multi-Institution Custody IRA: TOD agreement native to the account
This is a comparison, not a ranking. Each structure has a genuine advantage. The right one depends on how long the position is meant to last and who is meant to receive it.
The full analysis, including the arithmetic on what heirs actually keep from each wrapper, is in The Legacy Layer: Bitcoin IRAs & Estate Planning.
Frequently asked questions
Can I hold bitcoin in an IRA?
Yes. Bitcoin can be held in an IRA through a bitcoin ETF in a brokerage IRA, a single-custodian self-directed IRA, a collaborative multisig IRA, or a Multi-Institution Custody IRA. All four use a qualified custodian as Section 408 of the Internal Revenue Code requires.
Can I hold my own bitcoin keys inside an IRA?
No. Every IRA must have a qualified custodian. In McNulty v. Commissioner (2021) the Tax Court ruled that an IRA owner who took personal possession of the account's assets had effectively distributed them and owed tax on their full value.
What is a Multi-Institution Custody IRA?
A Multi-Institution Custody IRA is a retirement account that holds actual bitcoin behind a 2-of-3 signing quorum of three independent institutions. The client holds no key material and no single institution can move the position on its own.
Can bitcoin go in a Roth IRA?
Yes. Any of the four custody structures can sit inside a Traditional, Roth, SEP, or SIMPLE IRA. A Roth grows and distributes free of federal income tax and has no lifetime distribution requirement.
Related reading
- What Happens to a Bitcoin IRA When You Die
- Bitcoin Inheritance: A Spare Key Is Not a Deed
- Bitcoin Estate Tax Rules in 2026, in Five Numbers
- Full report: The Legacy Layer: Bitcoin IRAs & Estate Planning
This article is research and analysis, not a recommendation to adopt any legal or tax structure. Onramp is not a law firm, an accounting firm or a tax practice, and nothing here is legal, tax, accounting or investment advice. Tax rules described are federal, current as of August 2026, and subject to change. References to McNulty v. Commissioner and to third parties are for context only and imply no endorsement. Consult your own attorney, accountant and financial advisor before acting. Bitcoin is a volatile asset and its price can fall as well as rise.