FLOWBACK
Transparency

How fees work

Everything FLOWBACK charges, where it goes, and when it is paid. The same rules apply to every coin and are shown before every trade.

Fee schedule

VersionEffective fromFLOWBACK feeCreatorTrader cashbackFLOWBACK
v1current2026-11-150.5%60%20%20%

The split percentages apply to the FLOWBACK fee, not to the trade. A future change gets a new version and an effective date published here in advance. Every credited amount stores the version it was computed with, so a change never affects revenue or cashback already acquired.

How the fee is calculated

Buys

Reference amount = the SOL you send into the Pump.fun swap (Pump.fun's native fees are taken from inside that amount). The FLOWBACK fee is added on top, in the same transaction.

1 SOL buy → fee 0.005 SOL → 1.005 SOL + network fee

Sells

Reference amount = the SOL the swap is quoted to return, after Pump.fun's fees, fixed when you get the quote. The FLOWBACK fee is paid from the proceeds in the same transaction, so it is known before you sign even if the price then moves within your slippage.

  • Asset: always SOL, in lamports (1 SOL = 1,000,000,000 lamports). No token is ever taken as a fee.
  • Rounding: fee = floor(reference × 50 / 10,000). Creator = floor(fee × 60%), trader = floor(fee × 20%), FLOWBACK = the rest. FLOWBACK absorbs every rounding remainder, so the three parts always add up exactly to the fee collected.
  • Example with a tiny trade: 0.0001234 SOL → fee 617 lamports → creator 370, trader 123, FLOWBACK 124 lamports.
  • Below 200 lamports of reference amount the fee rounds to zero. The minimum buy on FLOWBACK is 0.001 SOL.

What is not a FLOWBACK fee

  • Pump.fun native fees, set by Pump.fun and read live from its fee configuration for every quote (on the bonding curve today: 0.95% protocol + 0.30% creator; PumpSwap pools use market-cap tiers). The creator part goes to the coin's Pump.fun beneficiary under Pump.fun's rules.
  • Solana network fees: base fee plus a priority fee, shown as a maximum before signing.
  • Account rent when your wallet needs a token account for a coin for the first time (refundable if you close the account).

Launching from FLOWBACK does not raise the native fees a creator earns on pump.fun or any other app. FLOWBACK revenue exists only for trades executed on FLOWBACK.

Collection, custody, distribution

  1. Collected atomically. Your trade transaction contains the Pump.fun swap, a SOL transfer of the exact FLOWBACK fee to FLOWBACK's fee vault, and a memo tying it to your quote. If the swap fails, the whole transaction fails: no fee is taken.
  2. Held by FLOWBACK. The fee vault is a wallet controlled by FLOWBACK. Creator revenue and trader cashback stay in this vault until they are paid out. FLOWBACK therefore holds these funds temporarily; you never deposit anything to trade.
  3. Credited after verification. FLOWBACK reads the confirmed transaction on chain and credits the three shares in its ledger only if every check passes.
  4. Paid out on request. Creators and traders withdraw their available balance to the wallet that earned it.

Payouts

Minimum0.01 SOL
Cost0.000005 SOL network fee, deducted from the payout
Destinationthe wallet that earned the funds, only
Authorizationa signed message from that wallet

One payout per wallet and account can be in progress at a time. The payout transaction is recorded with its signature before it is broadcast; if it never lands, it is re-sent only after its blockhash has expired, so a payout can never be paid twice.

Verification and the ledger

  • A trade is credited only if the transaction is confirmed and succeeded, was signed by the quoted wallet, calls Pump.fun for that coin, carries the quote's memo, and moved exactly the quoted fee to the fee vault.
  • No double credit: one transaction can be credited once, one quote accepts one transaction (database constraints, not just code).
  • No revenue on a failed transaction: failed or expired transactions are marked failed and never credited.
  • Recovery: FLOWBACK stores your transaction's signature before broadcasting it, and re-checks every unsettled transaction until it is confirmed or provably expired, even if you closed the page.
  • Every credit and payout links to its on-chain transaction in the creator and trader spaces.

Who receives creator revenue

The creator share of a coin goes to the wallet that receives its Pump.fun native creator fees: the creator for coins launched on FLOWBACK, or the verified current beneficiary for listed coins (original creator, or the beneficiary after a Pump.fun community takeover). Holders cannot claim a project. Fee-sharing configurations, holder-reward coins and program-owned beneficiaries need a manual review. If the on-chain beneficiary changes, FLOWBACK pauses trading on that coin until the new beneficiary verifies. Revenue already credited stays with the wallet that earned it.

List a coin →

Launch costs

FLOWBACK launch fee0 SOL
Pump.fun creation feenone today
Account rent≈ 0.0059 SOL (≈ 0.0074 SOL with an initial buy)
Network feeshown before signing
Initial buyoptional, your amount, Pump.fun fees included, no FLOWBACK fee

Integration notes and limits

  • Coins are created with Pump.fun's official SDK (create_v2, Token-2022). Trades use Pump.fun's bonding-curve program, then its PumpSwap pool after migration.
  • Pump.fun's programs do not collect a fee on behalf of third-party apps, so the FLOWBACK fee is a separate SOL transfer in the same transaction. That is why it appears as its own line.
  • Not supported in v1: coins quoted in a token other than SOL, Mayhem-mode coins, non-canonical pools. Their order buttons are disabled with the reason.
  • Coins launched here do not get a mint address ending in “pump” like coins created on pump.fun.
  • There is no FLOWBACK token. FLOWBACK works with SOL only.