SEC Custody Rule Proposal: Could Advisers Soon Hold Bitcoin Directly?

A new SEC custody rule proposal could quietly open one of the biggest doors yet for professional money to hold Bitcoin and other crypto assets.

On October 1, 2026, the Securities and Exchange Commission proposed a tailored crypto custody framework for registered investment advisers and regulated funds, including mutual funds and business development companies.

The proposal was published in the Federal Register on October 6, and the public comment window closes on December 7, 2026.

With just over a month left for feedback, we believe this is one of the most important, and least discussed, regulatory stories for Bitcoin’s long-term adoption.

What Is the New SEC Custody Rule Proposal?

The SEC’s existing adviser custody rule, Rule 206(4)-2 under the Investment Advisers Act, was written long before digital assets existed.

It generally requires advisers to keep client assets with a “qualified custodian,” which created years of confusion over how crypto fits in.

The new proposal, filed as Release No. IA-7023 (File No. S7-2026-35), would modernize those rules and redesignate the adviser custody rule as new Rule 223-1.

In its press release, the SEC said the proposal would “expand investor choice by removing regulatory barriers that inhibit the adviser’s ability to provide crypto-related investment advice.”

SEC Chairman Paul S. Atkins framed it in plain terms:

“Since the advent of Bitcoin in 2008, the crypto asset market has grown from a niche curiosity into a multi-trillion-dollar asset class to which investors actively seek exposure. Unfortunately, our rules and regulations have not kept pace.”

Atkins added that the plan would give advisers and funds “a compliant pathway where none existed before.”

How Would Adviser Self-Custody Work?

The headline change is a new path for advisers to hold client crypto assets in self-custody, meaning the adviser controls the private keys needed to move the assets.

This is not a free-for-all. According to the proposing release, the adviser would need to meet a strict list of conditions:

• No custodian available: the adviser must determine in writing, initially and every quarter, that a permitted custodian is not available for that crypto asset.
• Proven expertise: the adviser must document its safeguarding expertise and maintain systems covering private key management.
• Two-person control: any crypto transaction would require joint authorization by at least two people.
• Segregated addresses: each client’s assets must sit in addresses that correspond only to that client.
• Cyber and control reviews: annual cybersecurity reviews, plus internal control reports within six months and yearly after that.
• Quarterly statements: clients would receive statements showing their on-chain address, balances and transactions, so they can verify them directly on-chain.

We find that last point especially elegant. Bitcoin’s public ledger lets clients verify their holdings independently, which is a level of transparency traditional custody rarely offers.

Why Do State Trust Companies Matter?

The second major piece would allow advisers and regulated funds to use state-chartered trust companies as custodians for crypto assets.

Under the proposal, the adviser or fund must have a reasonable basis to believe the trust company is authorized by its state banking regulator to provide crypto custody.

It would also need to review the trust company’s audited financial statements and internal control reports, and ensure client crypto assets are segregated from the trust company’s own assets.

For the market, this could meaningfully widen the pool of approved custodians.

More approved custodians usually means more competition, lower costs and easier onboarding for wealth managers who have been waiting on the sidelines.

What Changes for Mutual Funds and BDCs?

Regulated funds would also get a new route. A new Investment Company Act rule, proposed Rule 17f-9, would let a fund hold crypto assets through its adviser if the adviser complies with the self-custody conditions.

The fund’s board would have to determine, before custody begins and annually afterward, that the assets would be subject to reasonable care.

The board would also review the adviser’s custodian-availability findings each quarter.

The SEC said the proposal would “allow regulated funds to offer clients access to a wider range of crypto asset-related investment strategies.”

The package also lets required records be kept on a crypto network, as long as they can be handed to the SEC in a readable format on request, and adds Form ADV questions about tokenized private funds.

What Could the SEC Custody Rule Mean for Bitcoin?

We believe the impact could be significant over time.

Registered investment advisers manage enormous pools of client wealth. Custody uncertainty has been one of the most common reasons advisers give for limiting crypto exposure.

Spot Bitcoin ETFs already solved part of that problem, attracting about $56.5 billion in cumulative net inflows since January 2024, according to Farside Investors data.

A workable custody framework could take that further, letting advisers hold Bitcoin directly for clients instead of only through fund wrappers.

This proposal also fits a broader pattern. As we reported in our coverage of the SEC’s Canton Coin no-action relief, the agency has been steadily replacing enforcement-first uncertainty with written rules and guidance.

Congress is moving in parallel. Our breakdown of the crypto market structure bill explains how lawmakers are working on the wider framework.

What Happens Next?

This is still a proposal, not a final rule.

The SEC will review public comments submitted through December 7, 2026, and could adjust the conditions before any final vote. A compliance date would follow adoption.

Even so, the direction is unmistakable. The US securities regulator is now writing rules designed to bring crypto custody inside the regulated system rather than keeping it outside.

For Bitcoin, that means a smoother on-ramp for the advisers, funds and institutions that move the largest pools of capital.

The coming days will reveal how the industry responds during the comment period, and how quickly this new pathway turns into real demand for Bitcoin.