Launched tokens: traders pay 1.5% per trade on the bonding curve, and 50% of every SOL fee goes to that token's own vault. OTC trades: buyers pay 1%, sellers pay 1%. Every number is shown before you sign.
Trading a launched token
1.5%
per trade on the bonding curve: 1.25% BackBid plus 0.25% Raydium. 50% of the SOL fees go to the token's vault.
OTC trades, any token
1% + 1%
Buyers pay 1% on top of the price. Sellers pay 1% from what they receive.
For tokens launched on BackBid. Launching itself has no fee beyond rent and network fees.
| Fee | Rate | Details |
|---|---|---|
| BackBid platform fee | 1.25% | of every buy and sell on the bonding curve. |
| Raydium protocol fee | 0.25% | of every curve trade, kept by Raydium. |
| Total paid by traders | 1.5% | per curve trade, taken in SOL. The quote shows it before you sign. |
| Creator fee | 0% | The creator earns no share of trading fees. |
| Split of SOL fees | 50% / 50% | to the token's own vault / to the BackBid treasury. Fixed for each token at launch; it can never change for that token. |
| After graduation | Pool fee | From 85 SOL raised, trades go through a Raydium pool and pay its trade fee plus its creator fee, which goes to the token's launch account, not its creator (the token page shows both rates). The locked liquidity's fees and that creator fee are split the same way; the token side goes 100% to the vault. |
| Launch rent | ≈0.0389 SOL | paid once by the creator. It funds the token's Raydium and BackBid accounts, which stay open. |
| Network fees | ≈0.000055 SOL | per transaction, usually. Paid to Solana, not to BackBid. |
Each fee harvest splits the SOL that arrived on-chain: the vault gets its 50% rounded down, the treasury gets the rest. How fee routing works
Selling to a token's vault or buying from it has no platform fee. Only Solana network fees apply.
You get the bid: the lower of the pool's TWAP and spot price, minus the vault's discount (10% by default).
You pay the ask: the higher of the pool's TWAP and spot price, plus the vault's premium (3% by default).
The gap between bid and ask is the vault's revenue. It stays in the vault; BackBid takes nothing from vault trades.
A vault's discount and premium can differ from the defaults. The token page shows its live bid, ask and limits.
For fixed-price offers and buy requests on any token. Buyers pay 1% on top of the price; sellers pay 1%, taken from what they receive.
Try your own numbers. Works for buying part of an offer too: the fee scales with what you buy.
Turn on JavaScript to use the calculator. The worked examples below show the same math.
Two OTC trades with made-up tokens, so you can see exactly where every unit goes.
Example, not a real token
250,000 TOKEN at 0.004 USDC each
BackBid collects 20 USDC in total. Solana network fees are extra and tiny.
Example, not a real token
2,000,000 TOKEN at 0.0000025 SOL each
BackBid collects 0.1 SOL in total. Solana network fees are extra and tiny.
Listing pays a small account deposit (Solana rent). It comes back to the seller in full when the offer closes: sold out, cancelled or ended.
An interest-only buy request is free. A funded request locks your payment plus the 1% buyer fee; whatever isn't used comes back when you cancel.
Every transaction pays a small Solana network fee, usually ≈0.000055 SOL. It goes to the network, not to BackBid.
Browsing, searching, signing in, cancelling an offer and reclaiming unsold tokens cost no BackBid fee (only the network fee where a transaction is needed).
Rounding: the price × amount is rounded up and each fee is rounded down, to the smallest unit of the payment token. The review panel shows the exact figures before you sign.
Launch fees are split on-chain: 50% to the token's own vault, the rest to the BackBid treasury. OTC fees go to the treasury. The vault share of each token's fees stays in that token's vault; its address is on the token page.
The BackBid treasury:
5ihFB55mTA775Q3ZYaqraabR6iYJ1HYY4KzyQvcKrbDESolscan
OTC fees first collect in the escrow program's fee accounts; only the admin can send them on, and only to the treasury.
