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The first serious crypto sale is rarely the two-click job the app implies. You see a price, you hit sell, and then the number that lands in your account is a little smaller than the one you were staring at. Between the exchange spread, the withdrawal fee, the bank's processing time and the tax you owe eighteen months later, the gap between the headline price and the cash in your pocket is real money.
None of that is a reason to avoid selling. It's just worth doing in a deliberate order. Here's the full path, from deciding what to offload through to cleared funds in your current account.
Two questions shape everything else: which asset, and what for. A house deposit, a portfolio rebalance, or a plain "this thing tripled and I don't believe in it any more" exit all point to different choices about venue and timing.
Liquidity is the first practical filter. Bitcoin and Ethereum can absorb a $200,000 market order on a major exchange with barely a wobble. A small-cap token with $400,000 of daily volume cannot. If you're holding the latter, look at the order book depth before you commit to anything, because a large sell order on a thin book will walk the price down against you.
If words like "order book" and "liquidity" are still doing a lot of heavy lifting in your head, this plain-English guide to what cryptocurrency actually is is a reasonable five-minute refresher before you move serious amounts.
Coinbase, Kraken, Bitstamp, Binance and their peers are the default for most people. You've already passed identity verification, the fiat rails are set up, and the sale settles into your account on the same platform. Fees vary far more than people expect. The simplified "simple" trading mode can cost 1.5% or more per trade, while the advanced interface on the very same exchange might charge 0.1% to 0.4%. Switching tabs is often worth hundreds of pounds on a five-figure sale.
Binance P2P, LocalCoinSwap and similar services connect you with a buyer directly, sometimes at a better rate and often with local payment methods banks don't otherwise support. The trade-off is counterparty risk. Use escrow every single time, trade only with merchants who have a long history and high completion rates, and never release coins before the payment has genuinely cleared rather than merely showing as pending.
Crypto ATMs are quick and expensive, typically 8% to 20% all-in. Consumer brokers like PayPal or Revolut are convenient but frequently apply a hidden spread of 1% to 3%. OTC desks start making sense somewhere above $100,000, where personal service and reduced market impact can beat the exchange fee.
Most people lose money on small avoidable steps, not on the price itself. The sequence that works:
If your holdings sit in a hardware wallet, you'll need to send them to an exchange deposit address first. Copy the address from the exchange, paste it into your wallet, and check the first and last four characters twice. Check the network too. Sending USDT over TRC-20 when the exchange expects ERC-20 is a well-known way to lose the lot. This explainer on how the ledger, keys and miners fit together covers why those network mismatches are unrecoverable rather than merely annoying.
If this is your first time moving coins yourself, the beginner's guide to cryptocurrency custody goes deeper on seed phrases and wallet hygiene.
The trading fee is the one shown to you. The spread, the gap between the best bid and the best ask on the order book, is the one that isn't. On a low-volume altcoin the spread can easily be 1%, which means you're down 1% the moment you sell, before any fee is applied.
Then there's the withdrawal cost. Bank transfers are usually free or a couple of pounds. Some instant methods aren't. And if you're shifting coins between exchanges first, on-chain network fees come out of the total as well, and those spike during busy periods.
If you also buy on the same platform, it's worth reading up on how to buy cryptocurrency without wasting money on fees, since the same spread mechanics work against you on the way in and the way out.
A market order sells immediately at whatever the best available bids happen to be. Fast, but on a thin book you can get a noticeably worse average price than the one on screen.
A limit order lets you name your price. It might not fill, and if the market moves away from you it can sit there indefinitely. For a large sale, splitting into several limit orders laddered a fraction of a percent apart often produces a better average fill than one market order.
Stop-limit orders add a trigger: sell if the price drops below a set level. Useful for protecting gains, but in a fast market a stop can trigger during a brief wick and fill far below your stop price. If you use them, set the limit band wide enough to actually fill.
SEPA transfers in the eurozone usually land the same or next business day. UK Faster Payments often clear in minutes. US ACH transfers commonly take one to three business days, while wire transfers are faster but cost $10 to $30. Withdrawal limits, especially on accounts without much history, can be lower than you expect, so check before you sell rather than after.
One more detail worth knowing: most exchanges only send fiat to a bank account in your own name. Third-party accounts get frozen in anti-money-laundering checks, and unfreezing them takes weeks.
Every sale is a taxable disposal in most jurisdictions, including trades into stablecoins. Swapping bitcoin for USDT doesn't dodge anything; it simply adds a step and creates a second disposal later.
What you'll want per sale: date and time, amount sold, price in your local currency at the moment of sale, fees paid, and your original cost basis for those specific coins. Most exchanges let you export a CSV. Do it quarterly. Reconstructing three years of trades from memory in April is a genuinely miserable experience.
In the UK, the annual capital gains allowance has shrunk to £3,000, and a 30-day matching rule means buying the same coin back within a month can change which coins you're treated as having sold. In the US, crypto is treated as property, so cost basis matters as much as proceeds.
This is where preparation pays off. If your coins are already on an exchange with fiat rails verified, you can be out in minutes. If they're sitting in a hardware wallet, you need a transfer, confirmations and possibly a stale identity check to clear, and that could take an hour at exactly the wrong moment.
It's also worth deciding in advance what "out" means. Selling half and letting the rest run is a legitimate strategy that most people find easier to live with than a binary all-or-nothing call. And if you're going to be selling over weeks, sell on a schedule. Pick a day, sell a fixed percentage, ignore the chart for the other six. You won't nail the top, but you also won't be the person who watched a life-changing number evaporate because they were waiting for one more leg up.
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