COCA vs ether.fi

The two cards reward you, but they fund a purchase in opposite ways, and that shapes everything below.

COCA is a non-custodial Visa debit card issued by Wirex. You spend from your smart-wallet balance, so every purchase sells crypto or stablecoins to settle, which is a taxable disposal in most jurisdictions.

Cashback runs 1% to 8% across six staking tiers (Starter free at 1%, up to Elite at 8% for 30,000 staked COCA), each rate capped to a monthly allowance and dropping to 1% above it. FX is 0% on every currency, the annual fee is $0, and you get a personal IBAN, $200/month of free ATM withdrawals, and 6% APY on idle stablecoins.

ether.fi is a non-custodial Visa credit card backed by your staked ETH. You borrow against eETH or weETH as collateral and never sell, so no crypto is disposed at the point of sale and the collateral keeps earning staking and restaking yield while you spend.

Cashback is a flat 3% on every purchase from Core through Pinnacle: Core is free with no stake, while Luxe and Pinnacle add perks rather than a higher rate. The invite-only VIP tier is the exception, with an undisclosed enhanced rate above 3% and 0% FX. For everyone else, FX is 1% on foreign spend, the annual fee is $0, and ATM withdrawals cost 2% with no free allowance.

The one-line version: COCA sells your assets to spend; ether.fi borrows against them. That is the whole game, and it is why a self-custodial label hides two very different products.

The free-tier story is ether.fi's. At $3,000/month its uncapped 3% pays $1,080 with no token to buy, which beats COCA all the way up through Standard+ (a 1,000-COCA stake for $990). COCA only pulls ahead once you stake into Premium (3,000 COCA, $1,560), and runs away with it at Premium+ and Elite.

Cross-currency tilts back toward COCA. Its 0% FX means a tier's rate is its net rate anywhere in the world, while ether.fi's 3% becomes 2% after its 1% foreign fee, about $720/year on $36,000 of foreign spend. So a Premium-or-higher COCA holder spending abroad keeps the full 5-8% where ether.fi gives back a point. If FX is your main concern, COCA belongs on any no-FX-fee shortlist and ether.fi does not.

Tax note: this all assumes stablecoin funding, where neither card triggers gains. The moment you spend appreciated ETH, the debit-vs-credit split below dwarfs these cashback differences.

For anyone spending appreciated crypto, tax treatment outweighs the cashback line, and the two models work in opposite directions here.

We modeled both. On COCA, every swipe is a disposal. Load $1,000 of ETH that is now worth $3,000, spend the $3,000, and you realize $2,000 of gains; at a 20% long-term rate that is $400 of tax in a single month. A year of $3,000/month spending from appreciated holdings can run $3,600 to $7,200 in capital gains tax depending on cost basis.

On ether.fi, borrowing against staked ETH is not a disposal, so it triggers no gain. The ETH stays in your wallet as collateral, keeps earning yield, and you repay the line on your own schedule, possibly in a lower-rate year.

Put numbers on an ETH holder with $50,000 in holdings at 50% unrealized gains, spending $3,000/month:

• COCA Premium: about $1,560 cashback plus $300 APY, minus roughly $3,600 in capital gains tax, nets about -$1,740 for the year.
• ether.fi Core: about $1,080 cashback plus roughly $2,000 of ETH staking yield, minus $0 tax, nets about $3,080.

That swing is almost entirely tax and yield on the same ETH; cashback barely moves it. For a stablecoin spender with no gains, the tax edge vanishes and the comparison reverts to the cashback and FX picture above.

Both cards pay you to hold, but on different assets.

COCA pays 6% APY on stablecoin balances through Morpho and Gauntlet lending, up to a tier cap and 2% above it. On $10,000 of USDC that is about $600 a year, carrying DeFi smart-contract risk on Morpho.

ether.fi's yield is on the ETH backing your line: roughly 3-4% base staking plus 1-2% EigenLayer restaking on eETH/weETH. On $50,000 of eETH that is about $2,000 to $3,000 a year, and it keeps accruing while the collateral backs your spending. The risk is ETH price: a sharp drop can pressure your collateral toward liquidation, on top of staking and restaking contract risk.

Which yield is bigger comes down to your portfolio. Stablecoin-heavy favors COCA; ETH-heavy favors ether.fi. Both compound on top of the card's cashback.

Beyond rate and tax, the bundles differ.

COCA leans banking. From Standard up it rebates 50% on subscriptions across four categories (video, AI, music, marketplaces), one service each with a $70/month cap, and every tier gets a personal IBAN with SEPA, $200/month of free ATM, and a smart wallet with biometric recovery. The banking side is there from day one.

ether.fi leans status. Core is a plain 3% card, but Luxe and above add conference-lounge access, up to 65% hotel discounts, metal cards, and at Pinnacle purchase protection, extended warranty, and baggage cover. Those unlock at 10,000+ monthly points (about $3,334 of monthly spend) or a 15,000 ETHFI stake, so they sit behind real spending or token commitment.

Picking COCA's higher cashback while spending appreciated ETH. COCA Premium pays about $480/year more than ether.fi on $3,000/month of domestic spend ($1,560 vs $1,080). But if that spend comes from ETH with 50% unrealized gains, the capital gains tax on $36,000 of disposals can hit $3,600, swamping the cashback and turning COCA net-negative for that user.

How to avoid it: work out the weighted cost basis of what you would actually spend. If unrealized gains top 30%, price the annual tax against COCA's extra cashback; when the tax is bigger, ether.fi wins even at the lower 3% headline.

Treating ether.fi's free 3% as the ceiling and skipping COCA's stake. ether.fi's uncapped 3% is excellent and beats COCA up to Standard+, which leads many to stop there. But a stablecoin spender who will stake into COCA Premium+ earns 6% on the first $5,000/month with 0% FX, well past ether.fi's 3%-minus-FX abroad.

How to avoid it: if your spend is stablecoin-funded (no gains) and you will commit the COCA stake, run your monthly volume against COCA's tier allowances; above roughly Premium, the higher capped rate plus 0% FX clears ether.fi.

Pick ether.fi if you hold appreciated ETH and want to spend without selling, or you want a strong free 3% with no token to stake and no monthly cap. The credit model keeps your ETH invested and earning while you spend.

Pick COCA if you spend stablecoins, will stake into Premium or higher for 5-8% capped cashback, and want 0% FX on every currency, 6% stablecoin APY, and IBAN banking in one app.

Use both if your spending splits: ether.fi for tax-free ETH spending and travel status, COCA for stablecoin banking and cross-currency.

Outlook: The two cards serve adjacent users and pair well, but the lines could move. If COCA shipped a credit line against crypto, it would attack ether.fi's core tax advantage; if ether.fi raised its flat 3% or cut the 1% FX, it would pressure COCA's cashback edge. ETH staking yields and capital gains rules are the bigger variables, so any holder spending appreciated ETH should re-run the tax math whenever rates change.