On July 9, 2026, Kraken changed the single number that decides how much every Kraken Pro trader pays per trade. Until that morning, your fee tier was a function of how much you traded — and only how much you traded. A balance sitting untouched in your account bought you nothing. That changed with the rollout of a “best of three” tier model in which your Assets on Platform (AOP) can qualify you for the same discounted rates that heavy trading used to reserve for itself (Kraken Blog).
For a long time the fee structure on active trading desks rewarded one behavior above all others: churn. Exchanges, Kraken included, set tiers per product and recalculated them on rolling 30-day volume, so a trader who stopped tradingould watch their rate climb back toward the top of the schedule even if they were sitting on a large portfolio. Kraken’s own announcement frames the redesign as a correction to that skew: “Holding a balance on the platform, without trading it, had no effect on either tier.”
The “best of three” model
The mechanics are now straightforward. Kraken Pro evaluates three independent measures and assigns you the tier corresponding to whichever is highest:
- Spot trading volume — your 30-day rolling spot turnover.
- Futures trading volume — your 30-day rolling derivatives turnover, counted separately from spot.
- Assets on Platform (AOP) — the value of eligible assets you hold, assessed in real time.
Under the old system, spot and futures tiers were calculated separately, so a futures trader got no credit for spot activity and vice versa. Now your single qualifying tier is the best of all three, and that tier sets your rate on both the spot and futures fee schedules at once.
The schedule itself is unchanged in shape: maker fees step down from 0.0200% at the entry tier toward 0.0050% at the top, with taker rates tracking alongside them. What changed is the path to reach those lower rungs.
Why AOP is the quiet headline
The most interesting detail is how AOP is measured. Unlike trading volume, which is averaged over 30 days, AOP is “assessed point-in-time.” In practice that means two things traders should internalize:
First, an eligible deposit can lift your tier immediately. The announcement states the AOP-qualified tier “adjusts immediately, in either direction,” so the moment your holdings cross a threshold your maker and taker rates drop — you do not have to wait out a monthly window.
Second, the reverse is also true. Because AOP is point-in-time rather than averaged, withdrawing funds can pull your tier back down just as fast. A trader who qualified for a top tier on the strength of a large balance, then moved that capital to cold storage, should expect their rate to rise on the next assessment rather than being grandfathered.
Not everything counts toward AOP. Kraken lists explicit exclusions: AOP Loans, embedded parent-client balances, and equities are not included. So the measure captures the crypto and cash balances you actually hold on the platform, not borrowed or pass-through positions.
Who actually benefits
This redesign helps three distinct groups, and it is worth being precise about which one you are in.
Long-term holders who still trade. Someone with a sizeable portfolio who trades occasionally now keeps a favorable tier between trades instead of drifting back to the retail rate. For a holder of meaningful size, that is a permanent reduction in cost versus the old volume-only model.
New large entrants. A trader depositing a substantial balance for the first time no longer has to “pay their dues” with volume to reach a competitive rate. The tier is available from day one based on AOP.
Futures-heavy desks. Because the qualifying tier now sets rates on both schedules, a desk that earned a low futures tier also gets that low rate on spot — previously those were siloed.
It helps less if you are a pure high-frequency spot trader already maxing the volume path; for you the numbers are effectively the same. And it does nothing for anyone who keeps assets entirely in self-custody, since AOP only counts what sits on the exchange.
The trade-off worth naming
The obvious caveat is that the model nudges traders to keep more assets on a centralized exchange than they otherwise might. That is a custodial risk decision, not a fee decision, and Kraken is not shy about the incentive: the product now rewards balances. Traders who optimize purely for the lowest fee could concentrate more value in a single custodian than their security posture warrants. The immediate, point-in-time adjustment cuts both ways — a withdrawal is priced into your tier on the spot.
There is also the question of stability. A tier that moves “in either direction” in real time is harder to plan around than a 30-day averaged one. A desk budgeting fees for a monthly strategy needs to model balance changes, not just trade flow.
Bottom line
Kraken Pro’s July 9 change is a structural shift from a volume-only to a holdings-and-volume tier, and it is the more trader-friendly of the two for anyone who holds size. The headline feature — AOP qualifying you for lower rates without trading — is real and assessed live, not averaged. The cost is a mild nudge toward leaving assets on the platform and a tier that can move as fast as your balance does. For active and semi-active holders alike, it is worth logging in to check which tier your current AOP already buys you; many traders are likely sitting one or two rungs higher than their trading volume alone would suggest.
Image: Kraken (blog.kraken.com) — official announcement card.
