Cryptocurrency loans: an uncomfortable gray area of tax law
Borrowing cash against your coins is usually tax-free. Lending your crypto out, or moving it into a protocol, can be a taxable sale. The line between the two is not where most people assume.
Borrowing money is one of the few things in the tax code that works the way you would hope. Take out a loan and the cash you receive is not income, because you have to pay it back. The lender owes tax on the interest you pay over time, and that is usually the end of it.
Crypto breaks that clean picture. The reason traces back to a single classification the IRS made years ago, and it still drives most of the confusion around crypto loans today.
Why property status changes the math
In Notice 2014-21 the IRS said it treats cryptocurrency as property, not currency. That one line carries real weight. A dollar loan is money in and the same money back. When the asset is property, the question becomes whether you actually got your specific property back, or whether you disposed of it and received something else in return.
Picture a gallery that lends a painting to a show. If a different painting comes back, the loan was really a swap. Crypto raises the same issue. If you hand over coins and later receive different units, or a token that stands in for them, an examiner can argue you sold the originals. Sales of property fall under the capital gains rules, so a transaction you called a loan can carry a tax bill.
Borrowing against your crypto vs lending it out
The direction of the loan matters more than the word attached to it.
When you borrow cash and pledge crypto as collateral, you normally keep ownership of the coins. You have not sold anything, so pledging them is generally not a taxable event, the same way pledging a house for a mortgage is not a sale. Whether the interest you pay is deductible depends on how you use the borrowed money, but the pledge itself usually is not the problem.
When you lend your crypto to someone else, or deposit it somewhere in exchange for a different asset, you may have given up ownership. If you cannot point to the exact units coming back to you, the arrangement looks more like a disposition than a loan. That is the gray area, and it is where people get caught off guard.
The securities-lending shelter does not clearly reach crypto
Stock investors lend shares all the time without a tax hit, because Section 1058 of the tax code provides a safe harbor for properly structured securities loans. The lender transfers shares, receives identical shares back later, and the loan is not treated as a sale.
Crypto owners often assume the same shelter covers them. It may not. Section 1058 is written for securities, and most cryptocurrencies are not treated as securities for tax purposes. Without that safe harbor, a crypto loan has to stand on general property principles, which are far less forgiving. This gap is the core of why crypto loans stay unsettled.
DeFi makes the question sharper
Decentralized lending pushes the issue further. Deposit coins into a lending protocol and you frequently receive a different token in return, a receipt that represents your position. Wrapping Bitcoin into wBTC is a similar move. Under a strict reading of the property rules, trading one token for another is an exchange, and an exchange is a taxable event.
The IRS has not issued guidance that squarely addresses these transactions, so practitioners take different positions and many treat them conservatively. Starting with the 2025 tax year, US brokers report digital-asset sales to the IRS on Form 1099-DA, which raises the stakes for labeling a taxable transfer as a nontaxable loan.
The pros who handle crypto tax structure these deals so the paperwork matches the tax you intend. We'll match you with one.
Get matched with a crypto-tax pro →What to check before you sign
- Keep it a real loan. A written agreement, a repayment schedule, and a stated interest rate support the case that this is debt, not a sale.
- Confirm you get the same property back. The closer the returned asset is to the exact units you lent, the stronger your loan position.
- Track your basis and holding period. If part of the transaction turns out to be taxable, you need cost basis to size the gain.
- Save the on-chain records. Deposit and withdrawal transactions, protocol receipts, and platform statements are your evidence.
- Ask before you act, not after. The treatment is easier to plan than to unwind, and the dollar amounts can be large.
None of this means crypto loans are off limits. It means the label on the transaction does not decide the tax. The structure does. Get the structure right, keep the records, and you remove most of the uncertainty that makes these deals risky.