The short version
- 1
Kraken is the only major exchange that separates flexible from on-chain bonded staking and explains what each means — a genuine transparency advantage in product design.
- 2
Flexible staking pays rewards on up to 50% of the allocated balance. This is disclosed and it is the most commonly missed fact about the product.
- 3
Commission reaches 30% on some assets, and advertised APYs are gross estimates. SOL shows up to ~8% advertised against roughly 4.71% net in-app.
- 4
Operating since 2011 with no loss of customer funds, with US money transmitter licences, FCA registration and MiCA authorisation via Payward Ireland.
Our verdict score
Kraken
Five weighted criteria, scored against every other platform in our database. The full method is published, including what we deliberately do not score.
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Rates and value
What a realistic balance actually earns, not the headline
4.0What a realistic balance actually earns, not the headline
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Transparency
Are terms, fees and the yield source disclosed plainly
4.3Are terms, fees and the yield source disclosed plainly
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Asset coverage
Breadth and usefulness of supported assets
4.5Breadth and usefulness of supported assets
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Ease of use
Onboarding, interface and reporting quality
4.1Onboarding, interface and reporting quality
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Risk controls
Licensing, custody, reserves and track record
4.6Licensing, custody, reserves and track record
Flexible and bonded: the split nobody else makes
Most exchanges hide an awkward fact. Proof-of-stake networks impose unbonding periods — 21 days on Cosmos, 28 on Polkadot — and a platform offering instant withdrawal is absorbing that mismatch, while a platform passing it through is making you wait. Very few interfaces tell you which is happening.
Kraken splits them explicitly. Bonded staking commits your assets on-chain for the network's real bonding period and pays the full network reward, less commission. Flexible staking lets you unstake quickly, and in exchange Kraken states that you receive rewards on up to 50% of the assets you choose to stake.
We think this is the correct product design and we would like more venues to copy it. It makes an inherent trade-off visible instead of burying it, and it lets a user choose according to whether they actually need liquidity. The criticism that follows in this review is about presentation, not about the underlying structure.
Kraken rates in full
| Asset | Advertised rate | Mechanism | Reality check |
|---|---|---|---|
| Polkadot (DOT) | Up to ~12% | Bonded staking | Before ~30% commission |
| Solana (SOL) | Up to ~8% | Staking | Advertised estimate, ~4.7% net in-app |
| Ethereum (ETH) | Up to ~7% | Staking | Gross estimate |
-
Polkadot (DOT)
Up to ~12%
- Mechanism
- Bonded staking
- Reality check
- Before ~30% commission
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Solana (SOL)
Up to ~8%
- Mechanism
- Staking
- Reality check
- Advertised estimate, ~4.7% net in-app
-
Ethereum (ETH)
Up to ~7%
- Mechanism
- Staking
- Reality check
- Gross estimate
The 50% rule, and why it changes the comparison
This deserves its own section because it is the detail most likely to produce a disappointed user. Under flexible staking, rewards accrue on up to half the balance you allocate. Stake 1,000 DOT flexibly at an advertised 12% and you are not earning 12% on 1,000 DOT.
The logic is sound from Kraken's side: to offer instant unstaking it must keep a portion of the pool unbonded and liquid, and unbonded assets do not earn network rewards. Somebody has to bear that cost, and here it is shared with the user rather than absorbed by the platform.
But it means an advertised rate on flexible staking needs to be roughly halved before you compare it with a venue that pays on the whole balance. Combine that with a commission of up to 30% and the gap between the headline and the outcome becomes very large.
1,000 DOT, flexible staking, worked through
- Advertised rate
- ~12%
- Rewards paid on
- Up to 50% of balance
- Effective gross on full balance
- ~6%
- Less commission of up to 30%
- ~4.2%
- A no-lock-up competitor pays
- 6% on full balance
Illustrative, using Kraken's own disclosed terms. The bonded option pays considerably more but imposes the full 28-day exit.
Gross quoting, and the SOL example
Kraken's Solana page is the clearest illustration in our whole dataset of why gross and net matter. The advertised figure reaches around 8%. The net rate shown in-app is closer to 4.71%. Both numbers are honest — one is the network estimate, one is what arrives — but only one of them is comparable to another venue's published rate.
Kraken states in its documentation that the APYs shown are estimates and do not include its commission, which reaches 30% on some assets and falls for larger balances — roughly 20% for combined balances near $1.5 million. That tiering is unusual and rewards size, which is reasonable but adds another variable to any comparison.
Our general rule for this platform: treat every published APY as a starting point requiring two corrections, and find the commission figure for your specific asset before deciding anything. On bonded DOT at 12% gross with a 30% commission, the net is roughly 8.4% — still a strong rate, and one you can now actually compare.
| Property | Kraken flexible | Kraken bonded | No-lock-up venue |
|---|---|---|---|
| Rewards on full balance | No | Yes | Yes |
| Exit time | Fast | 21–28 days | Immediate |
| Commission | Up to 30% | Up to 30% | In rate |
| Rate quoted gross | Yes | Yes | No |
| Suits a long-term holder | No | Yes | Partial |
| Suits an active allocator | Partial | No | Yes |
Track record and regulation
This is where Kraken is genuinely strong, and it is the reason the overall score sits as high as 4.2 despite everything above.
The exchange has operated since 2011 without losing customer funds. In an industry whose history includes Mt. Gox, QuadrigaCX, FTX and the 2022 lending collapse, fifteen years of continuous operation through multiple full market cycles is not a marketing claim — it is the most substantive evidence available about how a crypto business is run.
On regulation, Kraken holds US state money transmitter licences, operates an FCA-registered UK entity, and its Payward Ireland entity holds MiCA authorisation for EEA services. That last one matters more since MiCA's transitional period closed on 1 July 2026 and CASP authorisation became mandatory to serve EU clients.
The standard caveat applies with particular force here: MiCA authorisation does not extend to crypto lending programmes, and it is not deposit insurance for a staking balance either. Staking in the US has also been suspended for residents of several states following regulatory action, which is a real and ongoing constraint rather than a historical footnote.
Staking rates published net, with no 50% rule
Our highest-scoring venue publishes the rate you receive, pays on the entire staked balance, and imposes no lock-up on any of its thirteen staking assets.
Verdict
What works· Kraken
- Honest separation of flexible versus bonded terms
- Long operating history with no customer-funds failure
- Deep proof-of-stake coverage including smaller Cosmos-ecosystem assets
What to weigh
- Flexible staking pays rewards on only part of the allocated balance
- Commission up to 30% on some assets, disclosed but easy to miss
- Advertised APYs are gross, not what lands in the account
Kraken scores 4.2 out of 5, held up by an exceptional operating record and pulled down by how it presents its numbers. The product design is genuinely good: separating flexible staking from on-chain bonded terms is the honest way to handle the fact that Cosmos takes 21 days to unbond and Polkadot 28, and almost no competitor bothers. Asset coverage is deep, including a great deal of the Cosmos ecosystem, and the company has operated since 2011 without losing customer funds — a record nothing else in this market matches. Against that, two things need flagging. Commission reaches 30% on some assets, and the APYs shown in-app are estimates that exclude it, so a headline of around 8% on SOL corresponds to roughly 4.71% net. And the flexible option pays rewards on only up to 50% of the balance you allocate, which is disclosed but easy to miss and materially changes the comparison. Kraken is a good venue for someone who will read the documentation. It is a confusing one for someone who reads only the rate.
The facts, on one page
Kraken at a glance
- Platform type
- CeFi exchange
- Founded
- 2011
- Headquarters
- San Francisco, United States
- Custody model
- Custodial
- KYC
- Required
- Supported assets
- 15+ proof-of-stake assets
- Minimum deposit
- Low per-asset minimums
- Payout frequency
- Typically weekly or per network schedule
- Lock-up
- Flexible, or on-chain bonded terms for DOT, ATOM and others
- Geographic limits
- Staking unavailable to US clients for several assets; terms differ by region
- Licences and registrations
- US state money transmitter licences
Payward Ireland MiCA authorisation for EEA services
FCA-registered UK entity
Licence and registration details are as published by the provider and, where possible, checked against the relevant public register. Registration of a firm does not mean a regulator has approved, endorsed or guaranteed its earn products — in the EU, MiCA authorisation specifically does not extend to crypto lending programmes. Verify current status on the FCA register or the relevant authority for your jurisdiction.
Who Kraken suits
A long-term holder of a proof-of-stake asset who will use bonded staking, accepts the network's real unbonding period, and wants an operator with fifteen years of clean history behind it. For that user Kraken is a strong choice, and the commission — while high — is buying something measurable.
It also suits anyone holding less common Cosmos-ecosystem assets, where Kraken's coverage is better than most venues with a comparable regulatory footprint.
It suits less well an active allocator who wants liquidity. The flexible product's 50% rule makes it expensive in a way that is not obvious from the interface, and a venue that simply pays the full rate with no lock-up will often deliver more. It also does not suit anyone who will compare advertised rates across platforms without reading the commission documentation — which is, realistically, most people.
Kraken: common questions
What is the difference between flexible and bonded staking on Kraken?
How much commission does Kraken charge on staking?
Are Kraken's advertised staking rates accurate?
Can US customers stake on Kraken?
Is Kraken safe?
Which assets can I stake on Kraken?
Sources and further reading
Rates, terms and regulatory details on this page were checked against the following sources on . Variable figures move constantly — always confirm with the provider before depositing.
- 01 Kraken — overview of staking — flexible versus bonded terms and commission
- 02 Kraken — Solana staking — advertised and net SOL rates
- 03 Kraken — Earn FAQ — reward mechanics and eligibility
- 04 FCA — financial services register — UK entity registration