The goal of this piece is to introduce people to the magic of EtherFi.

That said, what I’m doing here isn’t without risk, and everyone should assess their own tolerance.

Personally, I’m only allocating around ~20% of my business funds to EtherFi at this stage.

I made my first Coinbase account back in 2016.

Since then, there haven’t been many crypto products I’ve used on a daily basis. There have been a few, but it’s a short list of protocols that have actually crossed into day to day usefulness.

The core DeFi primitives I rely on are borrow and lend platforms like Aave. Although I personally use Fluid and Felix.

Being able to hold what I consider strong collateral, BTC, ETH, HYPE, and borrow against it without selling or triggering a taxable event is incredibly powerful. It gives you a lot of flexibility.

The first protocol that really pushed this idea forward, in my view, was Alchemix v1 with self repaying loans.

I thought it was brilliant. It was one of the first crypto products I felt comfortable sharing with non crypto friends. They got it immediately. It wasn’t the most user friendly at the time, but the core concept clicked right away.

Then EtherFi came along and packaged this idea into something even more usable.

EtherFi Cash was announced in May 2024, with rollout starting closer to September.

I watched it from a distance for a while since I didn’t have access in Canada yet, but it reminded me a lot of that early Alchemix idea.

So what is it?

EtherFi Cash is a crypto native credit card and wallet that lets you spend your crypto in the real world without necessarily selling it.

This is already something I do through protocols like Fluid/Felix, but EtherFi bridges that last mile and makes your onchain balances actually usable in day to day life.

They currently offer 4 tiers:

As you can see above, EtherFi advertises up to 65% off hotel bookings. I know DeFi Dad uses it regularly, and from what he’s seen, it’s often the cheapest option by a wide margin.

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I had to wait a while since EtherFi wasn’t available in Canada. When it finally launched here, I still didn’t jump in right away. Most of my collateral was already deployed in lend and borrow positions on Fluid and Felix, and I didn’t want to unwind those and trigger taxable events.

More recently, I moved my self proprietorship into a corporation for tax efficiency, and it felt like the right time to try this.

The idea is simple. Put my corporation on a crypto standard powered by EtherFi.

My business doesn’t have massive overhead, so I wanted to see if I could build a crypto collateral base that generates enough yield to offset, or even fully cover, annual expenses.

I started this experiment at the end of February 2026, so it’s still early. But so far, it’s been very encouraging. I didn’t expect it to be this addictive.

I spent a few hours one day moving all my subscriptions and business expenses onto the EtherFi card. At this point, about 95% of my business spend runs through it.

As you can see in the image above, I’m holding: HYPE (1.8%), Liquid USD (4.37%), Liquid ETH (3.27%) and sETHFI (9.02%)

I think the timing could actually be pretty interesting for starting this strategy.

Bitcoin has already dropped ~52% from its cycle high, and many other tokens have been bleeding for months and are well off their all time highs.

In fact, Bitcoin was flirting with its sixth red month in a row from October 2025 through March 2026. As I write this, the March candle just barely closed green, snapping that streak:

The last time we saw a stretch of six red months was August 2018 through January 2019. So while I do think another flush is possible, this is a defensible area to be DCA’ing into.

If I had to guess at a cleaner bottom, which you can never really time, the $52K to $55K range looks interesting. But there’s a real chance you never get it.

So timing might be decent, but what’s actually driving this strategy?

At its core, I’m making a bet that if I can build a strong collateral base of high quality assets, it will outpace my spending over time.

The benefit is that the collateral itself is yield bearing, earning roughly 1.8% to 9.02%, while I also expect the underlying assets to appreciate.

Here’s a very simple visual:

If this works as I hope, I may never actually need to pay down the borrowed balance and can simply use the card to cover my annual expenses.

There’s also a longer term goal here, where the yield from the collateral fully covers yearly spend.

I’ll leave this deeper explanation to 6942.eth, who I recently connected with on X and has been thinking about this far longer than I have. He explains it better than I can.

Here’s a passage from a piece he wrote:

If this resonated click on the X post below to get the link to the full article:

And probably the coolest part of this article is the “On-chain Freedom” calculator embedded in it. Click the image below to check it out:

This calculator is actually pretty addictive. If you like tinkering and playing with sliders, you can really get into the weeds here. The cool part is you can input all your collateral, their exact yields, and even layer in a rough annual appreciation estimate.

Now, if you’ve made it this far, you might be thinking, “yeah, but now your whole company is tied to crypto.”

That’s a fair point, and it is a bit of a concern to be this undiversified.

Luckily, there’s a lot more innovation coming to EtherFi that should allow for a more diversified setup:

I think the real endgame here is the ability to hold tokenized equities, gold, and silver.

Right now, I’m basically running close to 100% crypto exposure outside of my Liquid USD position. Tokenization opens the door to holding things like gold, silver, or equities within the same system, which adds some balance.

I’m not usually big on being overly diversified, but I am very long crypto. Having the option to balance that out without leaving the ecosystem is compelling.

For example, if you’re a big Tesla bull, wouldn’t it be interesting to borrow against a tokenized Tesla position?

Tokenization really expands what’s possible within EtherFi.

There’s a few things that are still keeping me from going all in on this strategy:

New product risk

EtherFi Cash is still early. It will be interesting to see how it reacts to more dynamic market conditions. However, there were actually no liquidations in the October 10th major sell-off so that is reassuring. Building core financial workflows on something this new comes with unknowns.

Smart contract and layered protocol risk

This isn’t a single contract. It’s multiple layers
EtherFi → Veda vault infrastructure → underlying DeFi protocols

More layers means more surface area for bugs, exploits, or unexpected interactions.

Exploit and black swan risk

Even with audits and monitoring, DeFi has a long history of things breaking in ways no one expected. A major exploit could impair collateral or disrupt access to funds.

Collateral volatility risk

If you’re borrowing against crypto, your spending account is tied to volatile assets. Big drawdowns can increase liquidation risk or force you to deleverage at the worst time.

Liquidity and redemption risk

In stressed markets, exiting positions or unwinding vaults may not be instant or clean. That matters if you’re relying on this for actual day-to-day spending.

Counterparty and infrastructure risk

The card runs on traditional rails like Visa and issuing partners. You’re relying on multiple offchain providers working smoothly alongside the onchain system.

Regulatory risk (especially in Canada)

Access and features can change depending on jurisdiction. What works today may not be available tomorrow.

Concentration risk

Even if this isn’t your full stack, routing most of your spending through one system creates concentration risk. While I will try to run all my expenses through EtherFi, I will not be putting all my eggs in one basket.

Strategy risk

The whole model assumes yield plus appreciation outpaces your spending. That’s a thesis, not a guarantee. If yields compress or markets underperform, the math stops working.

Key Management/OpSec

I have to comment a bit on this because Operational Security (OpSec) has been the biggest downfall for protocols lately. In fact more than half of the hacks over the last few years have come from things like poor key management. So what does EtherFi do here?

EtherFi uses Turnkey for key management, which is a shift away from the typical seed phrase model most of us are used to. Instead of managing private keys directly, keys are generated and used inside secure enclaves (AWS Nitro TEEs), and signing requires explicit authentication via passkeys, email, or social login.

This is a clear UX improvement and removes a lot of the common phishing risks tied to seed phrases. That said, it’s not fully trustless. You’re relying on Turnkey and AWS for the underlying infrastructure, including enclave security, deployment controls, and recovery flows. The keys may never leave the enclave, but there are still open questions around things like account recovery, policy changes, and how much control the provider retains in edge cases.

On top of this, the system itself introduces some level of operational trust. Certain actions, like card-based spending, rely on privileged roles within the protocol to execute transactions, which is necessary for bridging onchain balances to real world payment rails, but still worth understanding.

It still behaves like self-custody from a user perspective, but under the hood you’re relying on Turnkey and enclave infrastructure rather than holding raw private keys yourself.

Platform Structure Risk

I’m going to spend a bit more time on this one as there’s some interesting language in the Terms of Service that make EtherFi a bit different than typical DeFi protocols.

This is where the difference from something like Aave becomes important.

On Aave, everything is enforced by smart contracts. If your collateral gets wiped or a position breaks, the protocol absorbs the loss as bad debt. You’re not personally liable. Worst case, you lose what you put in.

With EtherFi Cash, you’re operating under a legal agreement. It’s not just a DeFi position, it’s a real loan backed by crypto collateral.

According to the terms, you are still responsible for repaying your borrow, even if your collateral is lost or doesn’t fully cover the loan.

For example, if you have $2M in collateral and borrow $1M, and that collateral is wiped out, you don’t just lose the $2M. You’re still on the hook to repay the $1M.

In normal conditions, liquidation should work as expected. Your collateral gets sold and your borrow is repaid.

But that assumes everything functions properly.

In edge cases, whether that’s a hack, an oracle issue, or a bad unwind, there’s a scenario where collateral doesn’t fully cover the loan. In those situations, the liability doesn’t necessarily disappear.

One nuance here that’s worth calling out.

On paper, this is a recourse structure. If collateral doesn’t fully cover the borrow, the liability remains.

In practice though, enforcement is a different question.

These cards are issued out of Puerto Rico, and users are globally distributed. In a true edge case where collateral is broadly impaired, enforcing claims across hundreds of thousands of users in different jurisdictions would be extremely complex. All of which would have to be prosecuted from Puerto Rico.

That doesn’t mean the risk is zero, but it does suggest the real world outcome in a worst case scenario may look different than what the legal structure implies. In other words, I’m personally acting from a position that this is likely not something that would be enforced, but everyone should consult their own legal counsel on things like this and user your own judgement.

Insurance

I’d love to see insurance baked directly into the liquid vaults and other yield bearing collateral on EtherFi.

Knowing that a smart contract bug or exploit could be covered would go a long way in increasing confidence.

I’d imagine this is something EtherFi would need to implement, or potentially in conjunction with Veda at some level. Not entirely sure how that would look in practice.

And yes, I know that EtherFi offers Nexus Mutual coverage but to insure 5 ETH for one year the cost is more than your yield on your Liquid ETH vault and you need to pay it upfront:

And yes, I’m aware EtherFi offers Nexus Mutual coverage, but insuring 5 ETH for a year currently costs more than the yield on the Liquid ETH vault, and it has to be paid upfront.

Direct Banking Integration (Canada)

Right now, I can’t onboard into EtherFi directly from my bank in Canada. I have to go from bank → CEX → EtherFi.

It would be a nice upgrade to streamline this and connect more directly with traditional banking infrastructure.

Tax Software Integration

One friction point I’m running into is getting all my EtherFi transactions into QuickBooks for bookkeeping.

Ideally, there would be a direct API integration. From what I’ve heard, this is in the works, which would be a big upgrade.

In the meantime, you can export a CSV from EtherFi. I could probably use Claude to help format and import it into QuickBooks, but a native integration would be much cleaner.

I don’t think this is for everyone. And I’m definitely not saying people should go out and replicate this.

There are real risks here, both on the DeFi side and on the platform structure side that are worth understanding.

But at the same time, this is one of the first crypto products I’ve used in a long time that actually feels like it’s crossing into real world usefulness.

The idea that you can hold productive assets, borrow against them, and route your actual day to day spending through that system is powerful.

It’s still early, and there are things I’d like to see improve, but this is the first time I’ve seriously thought, “this could actually work.”

I’m going to keep running this experiment and will report back over time.

If you found this interesting and want to get started on EtherFi you can use my referral to join: https://www.ether.fi/refer/7a749e63

DISCLAIMER: Nothing written in The Edge Newsletter or said on The Edge Podcast is a recommendation to buy or sell tokens or securities. This content is for educational and entertainment purposes only. Nothing shared here is financial advice. Any views expressed in our content are solely the opinion of that writer, host, or guest. Always do your own research. DeFi Dad, Nomatic, and guests may have positions in the assets or other matters discussed in this content. Nomatic holds a very small position in ETHFI.