COINBIG is a crypto-only exchange with a flat 0.10% trading fee and no withdrawal fees-ideal for experienced traders who already hold crypto. But it lacks fiat on-ramps, security details, and customer support.
Flat Fee Crypto Exchange: What It Is and Which Ones Actually Deliver
When you trade crypto, flat fee crypto exchange, a platform that charges the same fixed amount per trade regardless of trade size. It's not about percentage-based fees like 0.1% or 0.5% — it's about paying $1, $2, or $5 per trade, no matter if you're buying $50 or $5,000 worth of Bitcoin. That sounds simple, right? But most exchanges don’t do this. They lure you in with "zero fees" then charge you in hidden ways — spread markup, withdrawal fees, or premium pricing on stablecoins. A true flat fee exchange cuts through that noise.
Related to this are non-custodial exchange, a platform where you keep control of your keys and don’t hand over your crypto to the exchange. Many flat fee platforms are also non-custodial because they’re built for transparency — if you’re paying a fixed fee, you expect full control. Then there’s crypto exchange fees, the total cost of trading, including deposits, withdrawals, and trading commissions. A flat fee structure makes it easier to calculate your real costs. You don’t need a spreadsheet to figure out if trading 10 small orders costs more than one big one — because it doesn’t. The fee stays the same.
But here’s the catch: not every exchange that says "flat fee" actually means it. Some slap on a flat fee for trading but charge $20 to withdraw. Others have flat fees only for certain coins. And some hide their fees inside the price — they quote you $30,000 for Bitcoin when the market is at $29,950. That’s not a flat fee. That’s a scam. The real flat fee exchanges — the ones that stick to it — are rare. They’re often smaller, newer, or built for specific users: people who trade regularly, don’t want to guess their costs, and hate surprise charges.
You’ll find these kinds of exchanges in the posts below — platforms that actually deliver on flat pricing, no tricks. Some are secure, low-fee platforms like Exchangeist. Others are niche DEXs that avoid custody entirely. A few are dead ends — exchanges that promised flat fees but vanished or changed their terms. You’ll also see comparisons with platforms that claim to be cheap but aren’t. This isn’t about hype. It’s about what works when you’re trading week after week, and the fees start to add up.
What you’ll find here isn’t a list of the biggest names. It’s a list of the ones that don’t trick you. The ones where you know exactly what you’re paying — and you can plan around it. Whether you’re a daily trader, a small investor, or someone tired of being nickel-and-dimed, this collection shows you who’s honest and who’s not.