How much of a swap fee goes to the network versus the exchange

05 September 2026

The split depends entirely on the blockchain and the exchange's pricing model, but in most swaps the network fee is a fixed cost while the exchange fee is a variable percentage. The network receives only the transaction fee required to settle the trade on-chain; everything else the exchange keeps.

Network fees are a fixed, unavoidable cost

Every on-chain swap requires a transaction to be mined into a block. That transaction fee, often called a gas fee on Ethereum or a priority fee on Solana, goes entirely to validators or miners who process the block. The exchange has no control over this fee. It is determined by network congestion and the computational complexity of the transaction.

For a simple token swap on Ethereum, the network fee might be a few dollars during quiet periods or hundreds of dollars during a meme-coin mania. On a low-fee chain like Solana or BNB Smart Chain, the network fee is usually a few cents or less. The exchange passes this cost through to you unchanged. It never keeps any of it.

Exchange fees are a variable markup

The exchange charges its own fee on top of the network cost. This is typically a percentage of the swap value, often between 0.1% and 1%. Some exchanges also build a spread into the quoted rate, effectively charging you twice: once as a visible percentage fee and once as a hidden markup on the exchange rate.

The exchange fee is pure revenue for the exchange. It pays for their infrastructure, development, marketing, and profit. Unlike the network fee, it does not go to any blockchain participant.

The real split in practice

Imagine a $1000 swap on Ethereum when network fees are $5. If the exchange charges 0.5%, the exchange fee is $5. Total cost: $10. The network gets $5, the exchange gets $5. That is a 50/50 split.

Now imagine the same swap on Solana, where the network fee is $0.01. The exchange still charges 0.5%, so it keeps $5. The network gets $0.01. That is a 99.8% share to the exchange.

The split is therefore not a fixed ratio. It shifts wildly depending on which blockchain you use and how congested it is at that moment.

What about the spread?

The spread is the difference between the market price of a token and the price the exchange actually gives you. It is not a fee in the traditional sense, but it acts like one. The exchange can widen the spread to capture extra value without calling it a fee. That extra value goes entirely to the exchange, not the network.

Some exchanges advertise "zero fees" but make money entirely from the spread. In those cases, the network still gets its transaction fee, and the exchange gets everything else.

Why this matters for understanding swap costs

When you see a quoted swap rate, you are seeing one number. But that number is a composite. Part of it covers the network cost, which varies by the second. Part covers the exchange's fee. Part may be hidden in the spread.

The hub page "What a crypto swap actually costs" breaks down each of these components in detail. This page has covered the split between network and exchange. The next question to ask is how the spread interacts with those fees, and whether the quoted rate you see is the rate you get.

Summary

Network fees go to validators or miners. Exchange fees and spread markups go to the exchange. The proportion between them is not fixed. On expensive networks, the network can take half or more. On cheap networks, the exchange takes nearly everything. Always check both the network fee and the exchange's fee structure before you swap.

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