fomo makes Solana fees depend on the trade route
Between 18 September and 8 October 2026 fomo rewrote its trading-fees article. Solana fees, once set by trade size alone, now depend on which route is available when the trade goes through: the old size tiers apply only on the lowest-fee route, and other routes charge 0.50% with a 0.95 USDC minimum. The same rewrite added Arc to the 0.50% networks and dropped the published cap on the major-token minimum fee.
What changed
Two Internet Archive copies of fomo’s “Trading fees on fomo” article compare like this:
| 18 September copy | 30 October copy | |
|---|---|---|
| Solana | Fee set by order size: four bands from a flat 0.10 USDC to 0.50% | The same bands only “on the lowest-fee route”; “on the other routes the fee is 0.50% with a 0.95 USDC minimum” |
| Other networks at 0.50% | Base, BNB Chain, Monad, Robinhood Chain, Ethereum | The same, plus Arc |
| Major tokens (0.05% rate) | Under 1,000 USDC, “a flat minimum fee of no more than 0.50 USDC” | “A minimum fee applies on smaller trades”; no amount given |
The newer text adds: “Which route is available changes from trade to trade, so the same size trade can carry a different fee at different moments.”
When it changed
The new wording first appears in the 30 October archive copy, but that copy says the article was “updated over 3 weeks ago”, and its page metadata dates the last edit to 8 October 2026 at 19:38 UTC. The 18 September copy still had the old wording (its metadata dates that version to 7 September). So the change was made between 18 September and 8 October, most likely in the 8 October edit. We found no release note announcing it.
What it means if you use the app
On Solana you can no longer work out your fee from the trade size alone. The fee shown on the confirm screen is the one that counts, and fomo’s terms say it overrides any example in a help article. On small trades the route can matter a lot, because the other routes have a 0.95 USDC minimum and no 0.10 USDC band. See the fee calculator and the small-trades bench. A referral code still changes only the percentage rate.
What we could not verify
How often each route is used: fomo does not publish it. Our measured realized rate rose from 0.47% in September to 0.60% in October (realized-fee bench). Smaller trades alone could explain that, so we do not blame this change. All revisions: change log.
How we verify: every entry is checked against a primary source (fomo's help centre, terms, blog, release notes or X posts, read through Internet Archive copies where fomo's site blocks automated readers; or a partner's own announcement), chain data, or at least two independent outlets, before it is published. JomoBench is independent and unofficial: we are not fomo or FOMO Labs Inc. No price calls and no coin picks. Most small tokens lose most of their value. All news · Fee and terms change log · Methodology