Looking to buy a large block of Bitcoin without causing market slippage? OTC (over-the-counter) trading desks offer private, high-liquidity Bitcoin purchases outside of public exchanges, making them ideal for institutions, whales, and serious investors.
In this 2025 guide, we reveal the 9 most trusted OTC Bitcoin desks—both online and in the U.S.—with comparison tables, minimum trade sizes, fee breakdowns, and a secure 6-step buying workflow.
Let’s dive in:
Where To Buy Bitcoin OTC – Top 9 OTC Desks (2025)
| Desk | Availability | Opening Times | Execution Time | Features | Rank |
| CustomersChain | Global | 24/7 | Under 30 minutes | Fast onboarding, large blocks, private settlement | ★★★★★ |
| Kraken OTC | Global (US-focused) | 24/7 | 1–2 hours | Regulated, deep liquidity, API integrations | ★★★★☆ |
| Strike Private | US only | Weekdays (EST) | Same-day | High-touch service, BTC/USD pairs | ★★★★☆ |
| OKCoin OTC | Global (U.S. licensed) | 24/5 | Within 2 hours | U.S. subsidiary, integrated wallet, fiat pairs | ★★★★☆ |
| EQIBank OTC | Global | Weekdays | Same-day | Crypto-fiat accounts, 20+ currencies, private banking | ★★★★☆ |
| CoinFlip Preferred | US only | Weekdays (EST) | Same-day | ACH/wire funding, regulated desk, concierge support | ★★★★☆ |
What Is an OTC Bitcoin Desk & Why Use One?
An OTC Bitcoin desk is a private trading service that matches large crypto buyers and sellers off-exchange, enabling fast, discreet, and low-slippage execution.
Benefits:
- Deeper liquidity: Execute multi-BTC trades without impacting market price
- Private block fills: No public order book, ideal for whales and institutions
- Regulated settlement: Many desks are licensed and follow KYC/AML rules
OTC Buying Workflow (6 Steps)
Buying Bitcoin OTC follows a streamlined, high-touch process designed for security and speed.
Here’s how it works:
- Open Account & Complete KYC: Submit ID and verification documents to onboard with your chosen desk.
- Request & Lock a Firm Quote (RFQ): Receive a price quote for your trade and confirm it within a set window.
- Send Funds (Wire or USDT Escrow): Transfer fiat via wire or stablecoins to an escrow wallet.
- Desk Releases BTC: Once funds are received, the desk delivers the agreed BTC amount.
- Post-Trade Confirmation: Trade details and settlement are confirmed for both parties.
- Optional Custodial Transfer: You can direct coins to a preferred wallet or third-party custody.
Best OTC Options for US Buyers
U.S.-based buyers should prioritize OTC desks that are registered with FinCEN and follow strict KYC/AML protocols.
These platforms are built to handle large trades while staying compliant with federal and state-level regulations.
FinCEN-registered desks: Kraken, Strike, CoinFlip
Kraken OTC is a top choice for institutional and high-net-worth buyers in the U.S.
It offers deep liquidity, strong regulatory backing, and 24/7 service through its U.S. entity.
Strike Private is another standout, designed specifically for Bitcoin-native users.
It delivers a high-touch experience with U.S.-compliant onboarding, making it ideal for serious individual investors.
CoinFlip Preferred also serves U.S. clients with a focus on accessibility.
It supports ACH and wire transfers for same-day trades and offers concierge-style support for each transaction.
Banks with integrated OTC (EQIBank, Signature bridge)
Some banking institutions offer integrated OTC services as well.
EQIBank operates globally but supports U.S. customers with crypto-fiat accounts and compliant OTC settlement across 20+ fiat currencies.
While Signature Bank has ceased direct operations, some affiliated bridge entities still provide OTC services under compliant frameworks for select clients.
Best OTC Options Online Worldwide
Global Exchanges
Global exchanges like OKCoin and Binance VIP offer robust OTC desks with 24/7 access, high liquidity, and support for multiple fiat and crypto pairs.
OKCoin operates under a U.S.-regulated framework, making it suitable for both domestic and international users.
Binance VIP caters to high-volume traders and institutions, offering dedicated account managers, competitive spreads, and volume-based fee structures.
These platforms are ideal for buyers seeking speed, scale, and built-in custody without needing third-party brokers.
Pure P2P OTC Hubs
Platforms like Bitbanker and Paydepot facilitate peer-to-peer OTC trades with escrow-based protections.
These services match verified buyers and sellers, offering more safety, privacy and flexibility than traditional exchanges.
Bitbanker specializes in high-value, direct trades with localized support, while Paydepot connects users globally with simple onboarding and rapid settlement.
While these hubs offer greater freedom, users must perform extra due diligence on counterparties and confirm legal compliance in their jurisdiction.
How to Choose the Right Desk
Selecting the right OTC desk depends on your location, trade size, and risk tolerance.
Use this checklist to evaluate any provider before trading:
Licensing & Regulation
Is the desk registered with FinCEN or regulated in its operating country?
Always verify compliance credentials.
Spreads & Fees
Review the quoted spread—typically between 0.1% and 1%—and ask about any hidden costs such as wire fees,
network charges, or custody fees.
Custody Model
Understand whether the desk uses escrow, third-party custodians, or requires pre-funded accounts.
Choose what aligns with your risk preferences.
Minimum Ticket Size
Desks vary widely.
Some require a minimum trade of 5 BTC or more, while others accept as little as 0.25 BTC.
Make sure it fits your needs.
Customer Support
High-quality OTC desks provide access to live brokers or real-time chat.
This is crucial for executing large trades securely and quickly.
Execution Time
Check how fast the desk can settle trades.
The best desks offer same-day or even under-one-hour execution for verified clients.
Fees, Spreads & Minimums Explained
OTC Bitcoin trades typically involve tighter spreads and more transparent pricing than public exchanges, especially at higher volumes.
However, it’s important to understand the full cost structure before trading.
Typical Spreads
Most desks offer spreads ranging from 0.1% to 1%, depending on trade size, market conditions, and whether you’re trading during peak hours.
Larger trades (≥25 BTC) often qualify for tighter spreads and reduced fees.
Hidden Costs
While many OTC desks advertise low spreads, there may be additional charges:
- Wire transfer fees for sending or receiving fiat
- Blockchain network fees for BTC withdrawals
- Conversion fees when settling in multiple currencies
- Custody or escrow fees if using third-party services
Minimum Trade Sizes
Minimums vary by desk.
Institutional platforms may require 5–10 BTC minimums, while retail-accessible desks can start as low as 0.25–1 BTC.
Some desks offer flexibility for repeat or high-value clients.
Understanding these elements ensures your total cost aligns with your expectations and trade size.
Compliance & Tax Notes for US Residents
U.S. buyers must follow strict tax and reporting rules when trading Bitcoin OTC.
Choosing a compliant desk can help streamline this process and avoid penalties.
IRS Form 8949 – Capital Gains Reporting
Every Bitcoin sale must be reported using IRS Form 8949, where gains or losses are declared based on your cost basis.
OTC trades are no exception.
Keep detailed records of trade confirmations, timestamps, and execution prices.
FinCEN Travel Rule
If you send or receive over $3,000 worth of crypto across institutions, desks may be required to collect and share sender/recipient details under the FinCEN Travel Rule.
Most regulated desks automatically handle this in the background.
State Licensing
Several U.S. states require Money Services Business (MSB) licensing for crypto transactions.
Always confirm that the desk operates legally in your state, especially if you’re wiring fiat or receiving large transfers.
OTC desks that operate in full compliance can help buyers avoid legal and tax pitfalls while offering peace of mind during high-value transactions.
Where to buy Bitcoin OTC?
You can buy Bitcoin OTC through regulated desks such as Kraken, CustomersChain, EQIBank, and OKCoin.
These services cater to high-volume buyers and offer direct, private trade execution.
Where to buy Bitcoin OTC online?
Top online OTC options include Binance VIP, CustomersChain, and OKCoin, all offering digital onboarding, global coverage, and 24/7 trade support for verified clients.
Where to buy Bitcoin OTC in USA?
Kraken OTC, Strike Private, and CoinFlip Preferred are FinCEN-registered desks available to U.S. residents.
They support ACH, wire transfers, and follow strict KYC/AML protocols.
What is an OTC Bitcoin desk?
An OTC desk is a service that allows high-volume buyers and sellers to trade Bitcoin off-exchange, often with tighter spreads, faster execution, and enhanced privacy.
Is Bitcoin OTC trading legal in the US?
Yes, if done through a registered MSB and compliant with IRS and FinCEN rules.
It’s important to trade only through desks that verify identity and follow anti-money laundering laws.
What is the minimum amount to trade Bitcoin OTC?
Minimums vary by provider.
Institutional desks may require 5 BTC or more, while others accept trades as small as 0.25 BTC for verified users.
Are OTC Bitcoin desks safe?
Regulated desks with transparent custody, compliance procedures, and strong client support are generally safe.
Always verify the desk’s credentials before trading.
