NFT marketplace fees explained: what you actually pay
When you buy or sell an NFT, the price tag is rarely the final number. Fees pile up across platforms, aggregators, and the blockchain itself. Some are one-time charges. Others hit you every time you move. Understanding the difference is essential - especially if you trade frequently.
The information below reflects marketplace structures as of late 2024 and early 2025. Fees change. Always check the platform before you confirm a transaction.
Marketplace commissions: the platform’s cut
Every NFT marketplace takes a percentage of the sale price. This is the most obvious fee.
OpenSea charges 2.5% per sale. That rate applies to both buyers and sellers in most cases. Blur, a marketplace built for professional traders, also charges 2.5% on primary sales - but its secondary market fees vary depending on the collection and listing type.
On Solana, the picture differs. Magic Eden, the dominant marketplace, takes 2% per sale. Tensor, the challenger that has gained significant volume, charges 2.5% on most listings. Both platforms have introduced fee-free promotional periods in the past, but those are temporary.
Aggregators like Gem and Reservoir add their own surcharge on top of the hosting marketplace fee. This typically runs 0.5% to 1.5%. If you use an aggregator, you pay two commissions - one to the aggregator, one to the final marketplace.
Creator royalties: not always enforced
Royalties are recurring fees paid to the original creator each time an NFT resells. The idea is simple: artists earn from secondary sales.
Historically, most marketplaces enforced royalties of 5% to 10%. That changed. In 2023, several major platforms made royalties optional or reduced them to attract volume. Blur defaults to royalties of 0.5% on most collections, though creators can opt into a higher rate via blacklisting non-royalty marketplaces. OpenSea still enforces full royalties on collections that use its registry, but only for listings on OpenSea itself. Magic Eden and Tensor both support customizable royalties - typically 5% - but enforcement varies by collection.
The practical effect: if you sell on a marketplace that doesn’t enforce royalties, the creator gets nothing. If you buy, you might pay less in royalty fees - or more, depending on the collection’s settings.
Gas costs: every action has a price
Gas is the fee paid to the blockchain network for processing your transaction. It is not a platform fee. It is infrastructure. And it changes constantly.
For Ethereum-based marketplaces, gas costs depend on network congestion. A simple transfer costs 21,000 gas units. An NFT sale involving a marketplace contract costs around 100,000 to 150,000 gas. During network congestion, this can mean $50, $100, or more per transaction. During quiet periods, the same action might cost $5.
Solana gas is negligible by comparison - often less than $0.01 per transaction. This is a major reason Solana marketplaces attract high-frequency traders.
One-Time costs: contract approvals
Before you can sell an NFT on most marketplaces, you must approve the marketplace’s smart contract to move your token. This is a one-time per-collection, per-marketplace cost.
The approval transaction itself costs gas. On Ethereum, that’s typically 40,000 to 50,000 gas units. On Solana, it’s near-zero. Once approved, you can list and sell without repeating this step.
Some marketplaces now use lazy approvals - the approval is bundled into the first sale. This saves a separate transaction but does not eliminate the gas.
Hidden costs: failed transactions
Failed transactions still cost gas. If your bid, buy, or sell fails - due to insufficient funds, slippage, frontrunning, or a contract error - you pay for the failed attempt.
On Ethereum, a failed sale can cost 50% to 100% of a successful transaction’s gas, depending on where in the process it fails. If you make multiple attempts, those costs stack.
On Solana, failed transactions cost minimal gas, but they still add friction. And some message-level failures may leave your Solana signature history cluttered - annoying, though not expensive.
Example: Buying a 1 ETH NFT on OpenSea
Assume ETH costs $2,400. Marketplace commission: 2.5% = 0.025 ETH. Creator royalty: 5% = 0.05 ETH. Gas for the purchase: 120,000 gas units at 50 gwei = 0.006 ETH. Total added fees: 0.081 ETH - on top of the 1 ETH price.
That works out to roughly $194 in fees, plus the $2,400 for the NFT itself. The platform does not cover these. You pay all of them.
The Bottom Line
Fees are not optional. They are not always visible in the price tag. Marketplace commissions, royalties, gas, approvals, and failed transactions all eat into your total cost. On Ethereum, these can exceed 10% of a transaction value. On Solana, they barely register - but volume can make up for low per-trade costs.
Know what each marketplace charges. Check royalty enforcement. Budget for gas. And never assume the listed price is the final price.
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