Citi to Launch Bitcoin Custody for Institutions

In brief: Citi plans to launch Bitcoin custody for institutional clients later this year through its new Custody+ platform, folding digital assets into the same account, settlement, and reporting infrastructure it already uses to safeguard traditional securities. The bank's securities services business supports clients in more than 100 markets and oversees roughly $30 trillion in client assets, so the move brings custodian-grade controls to Bitcoin rather than building a separate product beside them. It arrives as JPMorgan, Morgan Stanley, and State Street advance their own digital-asset plans following the 2025 rescission of SAB 121.

Citi has confirmed it will begin offering Bitcoin custody to institutional clients later this year, the clearest signal yet that one of the largest custodians in global finance intends to treat digital assets as a standard line of its securities services business. The bank's institutional infrastructure arm announced the plan alongside a new suite called Custody+, a set of services designed to make custody, settlement, foreign exchange, and cash management faster and, in some cases, closer to real time.

The defining feature is not that Citi will hold Bitcoin. It is where the Bitcoin will sit. Rather than spin up a standalone wallet product, Citi is building the service on what it calls its common digital-asset architecture, so that clients access traditional and digital custody capabilities within the same framework. For an asset manager, that means a Bitcoin position appears in the same account structure and reporting stack as an equity or a bond, subject to the same reconciliation and controls, instead of living in a parallel system that has to be bolted on and audited separately.

What is Citi actually launching, and how does it work?

Citi's Custody+ is an institutional digital-asset custody service that begins with Bitcoin and is designed to be operated by the same securities services division that already safekeeps trillions in conventional assets. Announced from the bank's Investor Services business, the service will go live later in the year "starting with the custody of Bitcoin", with the framework built to extend to other assets over time.

The client experience is deliberately conventional. Institutions will hold and instruct Bitcoin positions without ever touching a wallet, private key, or one-time address, because Citi manages that layer itself. This is the point that matters for a compliance officer or a board risk committee. The operational surface an institution has to underwrite looks like custody it already understands, not a new category of key-management risk it has to learn from scratch.

Scale is the second point. Citi's securities services business supports custody clients in over 100 markets, 62 of them proprietary, and oversees roughly $30 trillion in client assets. Placing Bitcoin inside that footprint, rather than alongside it, is what separates a bank custody offering from the specialist providers that pioneered the space.

Why is Citi moving now?

The timing follows a decisive shift in the rules governing whether banks can hold digital assets at all. For nearly three years, the binding constraint was an accounting rule. Under Staff Accounting Bulletin 121, introduced in March 2022, institutions had to record Bitcoin and crypto assets held for customers as liabilities on their own balance sheets, a treatment that made custody prohibitively expensive for capital-intensive banks and effectively kept most of them out.

That changed on 23 January 2025, when the SEC issued Staff Accounting Bulletin 122 and rescinded SAB 121, removing the balance-sheet penalty. Bank regulators reinforced the point: the Office of the Comptroller of the Currency's Interpretive Letter 1184, issued in May 2025, confirmed that national banks can buy and sell digital assets held in custody on behalf of clients. With the accounting obstacle and much of the regulatory ambiguity cleared in the same window, the economics of bank custody flipped from punitive to viable.

Citi had been preparing well ahead of the launch. The bank first signalled its intent publicly in October 2025, when Biswarup Chatterjee, its global head of partnerships and innovation in services, told CNBC that Citi had been developing a custody service for the previous two to three years and was aiming to bring a credible solution to its asset-manager clients within a few quarters. The Custody+ announcement is the delivery on that plan.

How does Citi's approach compare with the rest of Wall Street?

Citi is not moving alone, but the large institutions are taking visibly different routes, and the differences reveal how each firm reads its own risk appetite and regulatory position. That variation is worth understanding, because it shapes which counterparty an issuer or allocator will actually be able to use for a given need.

Morgan Stanley has taken the most structural path, filing with the OCC for a national trust charter that would let it custody digital assets and offer staking under a dedicated regulated entity. State Street, another of the world's largest custodians, rolled out its own digital-asset platform to support both digital assets and programmable versions of traditional instruments. Goldman Sachs and BNY, meanwhile, went after the fund layer directly, launching a solution to issue money market fund shares as digital tokens across a $7 trillion market.

The notable holdout is JPMorgan, which has chosen trading over safekeeping. In October 2025 the bank said it would build crypto trading for clients while keeping direct custody, in its own framing, off the table for the foreseeable future, citing risk and regulatory exposure. It has since moved on the financing side instead, beginning to accept Bitcoin and Ethereum as collateral for dollar loans through its Kinexys platform, with crypto held at third-party custodians rather than on JPMorgan's own books. Against that spread, Citi's decision to fold custody straight into its existing securities services stack reads as the most infrastructure-first of the group: less a new business line than an extension of the one it already runs at scale.

What it means for issuers and allocators

The practical consequence is that Bitcoin is becoming bankable through the same institutions that already sit at the centre of capital markets plumbing. When a custodian of Citi's scale places digital assets inside its standard reporting and settlement framework, the question for an institution shifts away from whether a credible custodian exists and toward how digital holdings integrate with the rest of a portfolio's controls, financing, and audit trail. That is a more advanced question than the market could ask even a year ago, and it points toward a market where programmable, composable, and auditable assets are administered by the same balance sheets that safeguard everything else. Building the rails that make those assets legible to institutional systems, rather than adjacent to them, is precisely the problem Issuant works on.