Sell bitcoin OTC: size, evidence and getting paid

To sell bitcoin OTC is to agree one price for the whole position with a desk and settle bilaterally, instead of working the sale through a public exchange order book where each fill prints and the price moves against you. The desk onboards you first, asks where the coins came from, and pays to a bank account in your own name.

Key takeaways

• The evidence is the hard part, not the trade. Desks ask you to evidence acquisition, not just ownership; a dormant wallet with no purchase record takes longest to document.
• Your own bank is the second gate. A US bank must report a transaction of US$5,000 or more that has “no business or apparent lawful purpose” and that it cannot explain (31 CFR 1020.320).
• Settlement is a credit decision. Deliver the coins first and you are the desk's creditor until the wire lands. Kraken requires settlement within 24 hours.
• Executors face access, value and authority. HMRC states that cryptoassets “do not qualify for loss on sale relief,” so a fall between death and sale does not reduce UK inheritance tax.
• Selling is not the only way to raise cash. A loan avoids a disposal but adds margin calls.

Selling in one ticket, or in stages

A sale on an exchange consumes the bids resting in the book, from the highest down, and each fill prints publicly. The larger the position against that depth, the worse the average and the more visible the seller. A desk replaces that with one agreed price and no print until it hedges.

Cumberland lists what goes into its price: “current index prices, market liquidity, volatility, and our overall position in the market.” A seller's size shows up in all four.

The alternative is a schedule. Coinbase Prime describes a TWAP order as “designed to execute large orders over time to minimize market impact,” “broken down into smaller pieces and executed at regular intervals.” Staging also keeps part of the position exposed to the price, and lets a seller test a desk with a small first trade. Each tranche is its own disposal for tax.

Getting the dollars to a bank account

Sellers usually worry about the wrong leg. The question is not whether the bitcoin will arrive but whether the money will, and in what order: deliver the coins first and you are the desk's creditor until the wire lands.

Cumberland states that all its trades are “settled post-trade,” often in less than 24 hours, once you are an approved counterparty, and that it transacts in eight currencies. Kraken lets eligible clients settle within 24 hours; Gemini describes intraday delayed net settlement on its electronic crypto OTC platform.

Two practical constraints. Kraken states that the name on your bank account has to match the name on your Kraken account, so an executor cannot settle into a personal one. And the Fedwire Funds Service day ends at 7:00 p.m. Eastern Time, customer transfers cut off at 6:45 p.m., and all Saturdays and Sundays are holidays, as of September 2026, so a Friday-evening sale can leave the cash leg waiting until Monday. The Federal Reserve Board announced on 9 October 2025 that the service will add Sundays and weekday holidays, no earlier than 2028.

Settling into stablecoins avoids the banking day but not banking: the questions below arrive when you convert.

Source of funds and source of wealth

Desks ask both. Source of funds is where these coins came from; source of wealth is how the wealth behind them was built. UK regulations require firms to establish both for politically exposed persons (regulation 35), and firms apply similar checks more widely on a risk basis. For an entity, add beneficial ownership at 25 percent or more plus one controller (31 CFR 1010.230). The pattern that causes delay is not a suspicious one, it is an undocumented one.

The hardest case is an early position in a long-dormant wallet, bought on an exchange that no longer exists. Not disqualifying, but expect more questions: onchain history, bank records from the period, and a written account of the acquisition.

Banking friction, and how to reduce it

The desk's checks are the first gate; your own bank is the second, and sellers are more often surprised by that one. A US bank must file a suspicious activity report on a transaction that “involves or aggregates at least $5,000 in funds or other assets” where it suspects illegal funds, an attempt to evade Bank Secrecy Act requirements, or a transaction that “has no business or apparent lawful purpose or is not the sort in which the particular customer would normally be expected to engage,” and it knows of no reasonable explanation (31 CFR 1020.320(a)(2)). A seven-figure inbound wire from a trading firm, into an account that has never seen one, sits in that third limb.

• Tell the bank first. Speak to the relationship manager before the trade, describe the expected amount and sender, and ask what the bank wants to see.
• Keep the paper. The trade confirmation, the onboarding pack and the source-of-funds evidence answer the question in one exchange rather than five.
• Never split the wire. Breaking one payment into several is the structuring pattern the reporting rules exist to catch, and it turns an explicable receipt into a reportable one.

Transfer information travels by rule in any case: prescribed sender and recipient details accompany any US transmittal of US$3,000 or more (31 CFR 1010.410(f)).

Inherited bitcoin: what an executor faces

An executor meets three problems in order: reaching the coins, valuing them, proving authority to sell. What follows is published guidance, not legal advice.

Access. Fiduciary access laws reach account providers, not private keys. Under Washington's enactment of the Revised Uniform Fiduciary Access to Digital Assets Act, a custodian must disclose a deceased user's digital assets to the personal representative within 60 days of the right paperwork, including a death certificate and letters of appointment (RCW chapter 11.120). No statute reconstructs a seed phrase: self-custodied coins are reachable only through key material the deceased left.

HMRC publishes a search list for personal representatives: exchange accounts, bank and card statements showing payments to crypto services, emails mentioning wallets, wallet software on devices, notebooks holding recovery phrases, and conversations with family and advisers.

Value. HMRC states that “Cryptoassets are treated as assets of a person's estate in much the same way as other assets, such as bank accounts, property, shares, and investments,” and that the date-of-death value goes on the inheritance tax return (CRYPTO25000, updated 28 November 2025). It also states that “Unlike property and shares, cryptoassets do not qualify for loss on sale relief,” so a price fall between death and sale does not reduce the inheritance tax charged.

Authority. A desk will ask for the grant of probate or letters testamentary, identity for each executor, and an account and bank account in the estate's name. Check separately that the will or trust deed permits the sale, and that selling rather than transferring in specie fits the duties owed to beneficiaries. Who we work with sets out what an estate is asked for at enquiry.

Borrowing instead of selling

Selling is a decision about the position, not only about liquidity. A loan secured on bitcoin raises dollars without disposing of the coins, but it is not the softer option: it carries a loan-to-value ratio, margin calls and liquidation if the price falls far enough, and the lender's custody terms decide what happens to the collateral meanwhile.

The routes are compared in borrow against bitcoin instead of selling, and the mechanics are on bitcoin-backed loans. For an estate there is a prior question: whether the governing document and the fiduciary's duties permit borrowing.

What a sale does for tax

A sale is generally a taxable disposal wherever you are taxed, and using a desk rather than an exchange makes no difference. General information, not tax advice.

In the United States, the IRS treats digital assets as property and says that on a sale of virtual currency you must recognize any capital gain or loss. Brokers report gross proceeds on Form 1099-DA from 1 January 2025 and basis on certain transactions from 1 January 2026; you report all gains and losses whether or not you receive one.

In the United Kingdom, HMRC lists selling tokens for money as a disposal (CRYPTO22100); for 2026 to 2027 the annual exempt amount is £3,000 and gains are taxed at 18% within the basic-rate band and 24% above it. In Canada, exchanging crypto for currency is a disposition and half of a capital gain is included in income.

Which units count as sold, and at what cost basis, depends on the rules where you are taxed, so take advice before the sale. The borrowing alternative is in are crypto loans taxable.

Risk

Risks in selling bitcoin over the counter

• Counterparty risk. With a principal desk, the desk is the buyer. Deliver the coins and it fails before it pays, and you are an unsecured creditor for the proceeds.
• Settlement risk. Bitcoin sent to a wrong or substituted address cannot be recalled, and the FTC warns that cryptocurrency payments typically cannot be reversed. Agree in writing who sends first, by when, and to which address and account.
• Impersonation, which targets sellers hardest. A fake buyer's whole purpose is to have you send first. California's Department of Financial Protection and Innovation reports that “Imposter websites are one of the most common reported scams” (accessed September 2026), and in its business email compromise advisory the FBI's IC3 tells recipients to verify account-change requests through secondary channels (PSA I-091124-PSA, 11 September 2024) — the same discipline applies to a desk's settlement instructions.
• Recovery scams, and checking the firm. The CFTC calls fraud-recovery scams “a form of advance-fee fraud,” and the FCA warns of firms offering to get money back for an upfront fee. Check any desk on the FCA Register, and against the CFTC RED List of foreign entities that appear to require registration but are not registered.

The warning signs are set out in what is OTC bitcoin trading.

Where we fit

We qualify the enquiry and, where a desk's criteria may fit, arrange an introduction. The desk onboards you, quotes and settles. We never ask you to send bitcoin or money to Crypto Loans HQ.

• How it works
• Custody and rehypothecation
• Glossary
• Start an enquiry

Primary sources

• Cumberland FAQ; Kraken OTC desk; Gemini crypto OTC desk; Coinbase Prime order types
• 31 CFR 1020.320; 31 CFR 1010.230; 31 CFR 1010.410; MLR 2017 reg 35; 26 U.S.C. §1014; RCW chapter 11.120
• HMRC CRYPTO25000; CRYPTO22100; GOV.UK CGT rates; IRS virtual currency FAQs; Form 1099-DA; CRA crypto-asset transactions
• Fedwire operating hours; California DFPI Crypto Scam Tracker; IC3 PSA I-091124-PSA; CFTC on follow-on frauds; CFTC RED List; FCA on recovery room scams; FTC on crypto scams

Selling bitcoin over the counter: questions

How do you sell a large amount of bitcoin without moving the price?

You take the sale off the public order book. A desk quotes one price for the whole position and settles bilaterally, so no part of the sale prints as it fills. The alternative is a schedule: Coinbase Prime describes a TWAP order as designed to execute large orders over time to minimize market impact.

What does a desk ask for when you sell bitcoin OTC?

Identity and, for an entity, who owns and controls it. Then source of funds and source of wealth: where the coins came from and how the wealth behind them was built. Expect to evidence it with purchase records, mining records, bank statements or contracts. Kraken states that your bank account name must match your account name.

How does an executor sell inherited bitcoin?

First find and reach the coins, then value them, then prove authority. Access laws reach account providers, not private keys: coins in self-custody are recoverable only through the key material the deceased left. HMRC says cryptoassets are treated as assets of a person's estate, valued at the date of death.

Do you pay tax when you sell bitcoin over the counter?

A sale is generally a taxable disposal wherever you are taxed, and the venue makes no difference. The IRS treats digital assets as property and says you must recognize capital gain or loss on a sale. HMRC lists selling tokens for money as a disposal. Take advice before you sell, not after.