Crypto OTC in Singapore: how big trades are done

What an OTC desk actually does

OTC stands for over the counter. Instead of placing your order on a public order book, where it is matched against many other buyers and sellers at whatever prices are available, you ask a desk for a quote. The desk gives you one price for the entire amount, you accept or decline, and if you accept, the trade is done at that price.

That sounds like a small difference, and for a S$500 purchase it is. At S$500,000 it is not. A large market order eats through the order book, filling the first part at a good price and the rest at progressively worse ones. The gap between the price you saw and the average price you got is called slippage. An OTC desk takes that risk off you by sourcing liquidity across venues, or from its own inventory, and pricing it into a single spread.

OTC desks also handle the parts that make big trades awkward on a retail app: higher deposit and withdrawal limits, settlement in several currencies, a named person to talk to, and paperwork your accountant or family office will want. In Singapore, the desks that serve local clients must hold a MAS licence for digital payment token services, and all of them settle through the banking system.

When OTC beats an exchange

There is no magic threshold, but a few situations make OTC the better tool.

Size. Once your order is large relative to the visible liquidity near the best price, an OTC quote tends to beat a market order. For Bitcoin and Ether in USD, that point is high; for less liquid coins, or for SGD pairs, which are thinner, it arrives much sooner.

Certainty. If you need to know exactly what S$1 million buys, perhaps because a business payment or a property deposit depends on it, a firm quote is worth more than a slightly better average price you might get by splitting orders yourself.

Settlement and limits. Retail apps often cap daily deposits or withdrawals, and moving large sums piecemeal is slow. A desk will arrange a single settlement, often in SGD, USD or another currency.

Below the minimums, OTC is usually not available and rarely needed. A limit order on a licensed order-book exchange, funded by free PayNow or FAST, is typically the cheapest route; our page on the cheapest way to buy Bitcoin shows the maths on S$100 to S$10,000. Use the calculator below to compare an exchange fill with an OTC quote at your own size.

Plug in the numbers you actually see. The default slippage of 0.30% is only an example; on a deep BTC/USD book a S$250,000 order may move the price far less, while on a thin SGD pair it can move it more. The honest way to decide is to ask for a firm quote and compare it with the live order book at the same moment.

Retail, high-net-worth and institutional

“OTC” covers three quite different services in Singapore, and it helps to know which one you are shopping for.

Retail OTC is for individuals with a large one-off trade, typically starting somewhere around S$50,000 to US$100,000. You onboard much like a normal exchange account, with extra checks on where the money comes from. Independent Reserve and StraitsX are the clearest examples with published minimums.

High-net-worth and private wealth services sit inside private banks and wealth platforms. They often require accredited investor status and are offered alongside other investments. DBS’s crypto trading for eligible wealth clients is the best-known local example, and Matrixport serves high-net-worth individuals alongside miners and funds.

Institutional OTC desks such as QCP, GSR, Cumberland, HashKey and Sygnum deal mainly with funds, corporates, market makers and other financial institutions. If you are an individual, expect to be politely turned away unless you are trading through a company with a professional profile.

Licensed OTC desks in Singapore

The table lists desks whose Singapore entities appear in the MAS Financial Institutions Directory as Major Payment Institutions for digital payment token services, as checked on 20 October 2026, plus DBS. Minimums are what each firm publishes, or what was reported where it does not; always confirm with the desk before you plan around a figure.

Independent Reserve’s desk is the most transparent for individuals: it says quotes are all-inclusive with no hidden OTC fees, orders usually settle within a few business hours (some take up to a business day), and it can settle in SGD, USD, AUD, NZD, HKD and EUR. Its Singapore team moved into a new CBD office in December 2024, but that is not a walk-in counter. Our Independent Reserve review covers the exchange side too.

StraitsX is the natural choice if you specifically want stablecoins in size. It says it quotes within about an hour and that most trades settle within roughly an hour of receiving funds. Our stablecoin guide explains XSGD and which network to receive on. Coinhako, now majority-owned by SBI, has run an OTC service since 2019; the US$250,000 minimum widely reported at launch may have changed, so ask. See our Coinhako review.

For the complete register of licensed firms and what each licence covers, see our list of MAS-licensed crypto exchanges.

How a trade works, step by step

1. Onboard as an OTC client

   Expect identity checks, proof of address and, for larger sizes, source-of-funds and source-of-wealth documents. Companies also provide constitutional documents and details of directors and beneficial owners.

2. Request a quote

   Tell the desk the coin, the size, the currency and whether you are buying or selling. You get a firm price, usually valid for a short window.

3. Accept and confirm in writing

   Once you accept, the price is locked. Good desks send a trade confirmation with the price, size, fees and settlement instructions.

4. Settle through the bank

   You send funds by FAST, PayNow, MEPS or a telegraphic transfer from an account in your own name, or send the crypto if you are selling. The desk delivers the other leg once it receives yours.

5. Withdraw and keep records

   Move coins to your own wallet or custodian if you prefer, after a small test transfer. Keep the confirmation: IRAS and your bank may both ask about it later.

Notice what is missing: cash. We found no MAS-licensed desk that advertises cash settlement, and there is a good reason. Bank settlement creates a clear record of who paid whom, which is what anti-money-laundering rules require. Large crypto sales can still prompt questions from your bank, so it is worth reading our guide to cashing out to a bank account before a big trade.

KYC, source of wealth and accredited investors

Every licensed desk must know who you are and where the money came from. For a retail-sized trade, identity and address checks are enough. For OTC sizes, expect to explain the origin of the funds, salary, business income, a property sale or an inheritance, and show documents that back it up. If you are selling crypto, the desk may ask how and when you acquired it and which wallets you used. Crypto transfers of S$1,500 or more between providers also carry sender and recipient information under the travel rule in MAS Notice PSN02.

Some services are open only to accredited investors. Under section 4A of the Securities and Futures Act, an individual generally qualifies with net personal assets above S$2 million, in which the primary residence counts for no more than S$1 million, or net financial assets above S$1 million, or income of at least S$300,000 in the preceding 12 months. Since 2019, you must also opt in in writing before a firm can treat you as one. These thresholds come from the statute and MAS’s published materials; check the current text on Singapore Statutes Online before relying on them, as MAS has said it is reviewing the investor definitions.

OTC profits are taxed the same way as any other crypto gains: Singapore has no capital gains tax, but frequent or business-like trading can be taxed as income. Our crypto tax guide has a self-check.

OTC scams to recognise

Large sums attract professional fraud. The OTC scams we see described most often in Singapore share a few features:

• Impersonated desks. A Telegram or WhatsApp account uses the name and logo of a licensed firm, sometimes with a copied website on a slightly different domain. Always start contact from the official site of the firm, and check the entity in the MAS directory.
• “Discount to market” offers. Someone offers USDT or Bitcoin below the market price, provided you move fast. Nobody sells a liquid asset cheaply to a stranger.
• Cash or third-party settlement. You are asked to bring cash, pay into a third party’s account, or receive funds from someone you do not know. Beyond the fraud risk, this can tie your account to laundered money.
• Fees before trading. “Whitelisting fees”, “unlocking fees” or “tax deposits” are classic advance-fee fraud.
• Fake confirmations. A screenshot of a bank transfer or a blockchain transaction is not settlement. Wait until the funds or coins are actually in your account.

Crypto accounted for S$182.2 million of Singapore’s scam losses in 2025, according to the police. Check names on the MAS Investor Alert List, and read our crypto scams guide if something feels wrong. If you were considering trading directly with an individual instead, our P2P guide explains why that carries even more risk at large sizes.