If you own a spot Bitcoin ETF and want cash without selling, you have an option that did not exist a couple of years ago: borrow against the ETF on margin inside your brokerage. You keep the upside of the shares, you avoid a taxable sale, and the money is available in days. You also take on a very different and higher risk profile than an over-collateralized Bitcoin-backed loan, and that difference is the whole point of this guide.
This is not a Bitcoin-backed loan from a crypto lender. It is securities margin lending: the same mechanism a stock investor uses to buy on margin, applied to a Bitcoin ETF as the collateral. The rules, the risks, and the people who can force a sale are all different.
What "borrowing against your ETF" actually means
When you hold a spot Bitcoin ETF such as IBIT, FBTC, or ARKB in a brokerage margin account, the broker will lend you cash using those shares as collateral. You can withdraw that cash or use it to buy more securities. You pay margin interest on the borrowed balance until you repay it, and you never have to sell your shares to get the money.
Two leverage regimes matter:
- Regulation T margin is the standard. It lets you borrow up to 50% of the position's value at the outset, which is roughly 2x. Almost every margin-enabled brokerage account offers it.
- Portfolio margin is risk-based and can allow materially higher leverage, broadly up to the mid-single digits. It requires approval and high equity, commonly $100,000 to $150,000, and not every broker offers it. Robinhood and Vanguard, for example, do not.
How much can you borrow, and what it costs
Start with your position value: shares times the current ETF price. Under Reg T you can borrow up to half of that. Our IBIT margin calculator prefills a live price and shows your borrowing power, loan-to-value, estimated monthly interest, and the price at which you would face a margin call.
The cost is margin interest, charged on the borrowed balance at a variable rate. Rates are tiered by balance and reset when benchmark rates move. They vary widely between brokers: Interactive Brokers publishes some of the lowest tiered rates, while several traditional brokers publish double-digit base rates that only fall on large balances. Because the rate is variable, always check the current published figure and its effective date.
The risk that makes this different from a Bitcoin loan
With an over-collateralized Bitcoin-backed loan, the worst case is usually that the lender liquidates the specific collateral you pledged. With margin, the broker is lending against your account, and the stakes are higher.
- Leverage amplifies losses. A 2x position falls twice as fast as the asset.
- A margin call can force a sale at the worst time. If the ETF drops and your equity falls below the broker's maintenance requirement, the broker can sell your shares without notice to bring the account back in line. You do not choose the price or the timing.
- You can lose more than you put in. In a sharp decline, a forced sale can leave you owing the broker.
- The maintenance requirement is set by the broker and is often higher for a crypto ETF. A single volatile fund like a Bitcoin ETF is exactly the kind of security on which brokers set elevated house requirements, and they can raise them without notice.
Bitcoin has fallen 60% to 80% in past bear markets. Run that against your borrowing level before you borrow, not after.
The honest gap in the data: IBIT-specific eligibility
Here is something no broker advertises clearly. Whether a specific spot Bitcoin ETF is marginable at all, and the exact house maintenance requirement applied to it, is decided per security and is almost never published on a public page. It lives in the trading platform, behind a login, or only a phone call away.
That means two things. First, "I can buy IBIT here" is not the same as "I can borrow against IBIT here." Some brokers let you hold the ETF but restrict or decline it as margin collateral. Second, any specific maintenance percentage you see quoted online for a Bitcoin ETF should be treated as unverified until you confirm it with the broker. We deliberately do not publish a number we cannot source.
How the major brokers compare
The brokers differ on rate, on whether they offer portfolio margin, and on how they treat a crypto ETF as collateral. A few notes worth knowing in 2026:
- Interactive Brokers publishes the lowest tiered margin rates and offers portfolio margin from around $110,000 in equity.
- Robinhood is competitive at the entry tier but requires a Gold subscription to use margin and does not offer portfolio margin.
- Fidelity, E*TRADE, and Schwab publish higher base rates that step down on larger balances; all three offer portfolio margin to approved, higher-equity accounts.
- Vanguard reversed its long-standing crypto stance in late 2025 and now lists spot Bitcoin ETFs, which become marginable after a standard 30-day holding window; it does not offer portfolio margin.
- Bank-owned brokerages such as Merrill Edge and Wells Fargo's WellsTrade let you buy spot Bitcoin ETFs but are the most likely to restrict or stay quiet on margining a single crypto fund. Confirm before you count on it.
See published rates, leverage, and minimums side by side, with your estimated monthly cost, on our Borrow on ETFs comparison.
Who this is, and is not, for
Borrowing against a Bitcoin ETF can make sense for a short-term cash need when you have conviction, a comfortable cushion below your borrowing level, and a plan to repay or add collateral quickly. It is a poor fit if you would be borrowing near the Reg T limit, if you could not post more collateral within a day, or if a forced sale at a bad price would be more than an inconvenience.
We are a publisher, not a broker, lender, or investment adviser, and nothing here is a recommendation to use margin or leverage. It is general information. Verify every figure, and your own eligibility, with the broker before you act.