Crypto lending can be reasonably safe, or very unsafe, depending on one thing above all: who holds your coins. Lending stablecoins from your own wallet into an over-collateralised on-chain pool removes the risk that destroyed most crypto lenders in 2022, which was handing coins to a company. What's left are smart-contract bugs, stablecoin depegs and liquidity crunches. Those are real risks, but you can see and manage them.
This guide covers what went wrong in 2022, how the two lending models differ, the risks that remain and a checklist for lending USDT or USDC sensibly. If you're new to the topic, start with what is crypto lending. This is general information, not financial advice.
What went wrong in 2022
In 2022 several of the biggest names in crypto "earn" stopped withdrawals and filed for bankruptcy within months of each other. The pattern was similar each time:
- Customers deposited coins, attracted by advertised interest rates.
- The company lent those coins on, often to trading firms, sometimes with little or no collateral.
- When prices crashed and a large borrower failed, the company couldn't repay depositors.
- Withdrawals were frozen. Depositors became unsecured creditors and waited years for partial repayment.
The important detail is that customers couldn't see any of this. They saw a balance and an interest rate in an app. The lending decisions, the collateral (or lack of it) and the losses were hidden on the company's books.
Custodial vs non-custodial lending
| Non-custodial lending | Custodial lending | |
|---|---|---|
| Who holds the coins | A public smart contract; your keys control the position | The company |
| Who chooses the borrowers | Anyone who posts enough collateral, under published rules | The company's risk team |
| Collateral | Enforced by code, typically more than the loan | Whatever the company decides |
| Can you check it? | Yes, on a block explorer | Only through the company's app |
| If the company behind the app disappears | Your position is still on-chain; withdraw with another wallet | You're a creditor in its bankruptcy |
Non-custodial lending means your wallet supplies stablecoins to an on-chain lending pool. Borrowers must lock up collateral worth more than they borrow. If their collateral falls too far, the contract sells it automatically to repay the pool. You can withdraw whenever there's free liquidity, and nobody can block you.
Custodial lending is simpler (deposit, earn, withdraw, with account recovery if you lose your phone), but you are trusting a company's judgement and honesty. Some custodial providers are well run. The problem is that you can't verify it. Read more in non-custodial lending: is it safe?
The risks that remain with non-custodial lending
Smart-contract risk
A lending pool is software, and software can have bugs. Exploits have drained DeFi protocols before, sometimes through the contract itself and sometimes through a faulty price oracle feeding it bad prices. Long-running, heavily used and audited protocols have a much better record than new ones, but nothing is bug-proof.
Stablecoin depeg risk
You're lending dollars only as good as the stablecoin behind them. Both USDT and USDC have briefly traded below $1. The best-known case was March 2023, when USDC fell to around $0.88 over a weekend because part of its reserves sat in a failed US bank. It recovered once the deposits were guaranteed, but anyone forced to sell that weekend lost money.
Reduce it: split larger amounts between USDT and USDC rather than holding only one.
Liquidity risk
Pools pay interest because borrowers are using the money. If nearly all of a pool is borrowed (high utilisation), there may not be enough left for every lender to withdraw at once. Rates rise sharply in that situation, which attracts new lenders and encourages repayments, but you might wait hours or days.
Reduce it: don't lend money you might need tomorrow, and keep a buffer unlent.
Liquidation shortfalls
In a very fast crash, collateral may not sell quickly enough to cover every loan. Good protocols keep reserves for this, but it's a tail risk worth knowing about.
Key security
In non-custodial mode, anyone with your recovery phrase can withdraw your position. If you lose the phrase and your phone, nobody can recover it. See what is a seed phrase.
Regulatory risk
Lending rules differ by country and change often. In Europe, for example, many platforms stopped offering USDT under MiCA, and in the US most custodial "earn" programs closed after 2022. Self-custody lending is affected less, but it's worth following the rules where you live. See our regional guides for Europe, the USA and MENA.
Red flags in any lending offer
- Fixed, high returns. Real lending rates move with demand. A product promising a flat 15% or 20% on stablecoins is taking risks you can't see, or it's a scam.
- No explanation of where the yield comes from. If you can't tell who's borrowing and what collateral backs them, assume the worst.
- Lock-ups you can't exit. Some products trap your coins for months with no early withdrawal.
- Pressure to deposit more to "unlock" earnings. This is a classic scam pattern.
- Anyone asking for your recovery phrase. No legitimate lending service ever needs it.
A safe-lending checklist
- I know who holds my coins while they're lent
- I'm lending stablecoins I won't need for a while
- I've split larger amounts across USDT and USDC
- I've checked the current rate and understand it can change
- I have a little of the network's native coin for fees
- My recovery phrase is backed up offline and never shared
How Virtex Wallet handles lending
Virtex Wallet lets you lend USDT and USDC in two modes:
- Non-custodial: lend from your own keys; your position is on-chain and verifiable.
- Custodial: Virtex manages lending for you, with simpler recovery. (Not available in the EEA, the UK or the USA.)
The app shows the current estimated rate and how withdrawals work before you confirm. Try the USDT and USDC interest calculator to see a typical range. If you'd rather grow a coin you already hold, compare staking vs lending, and if your end goal is more Bitcoin, see how to earn Bitcoin by converting interest into BTC.
Common questions
Is crypto lending safer than staking?
Usually not. Native staking keeps coins on-chain under your control with no borrower involved, while lending adds smart-contract and depeg risks. Stablecoin lending avoids crypto price swings, though, which staking doesn't. See is crypto staking safe?
Can I lose all my money lending crypto?
With a custodial lender that fails, you can lose most of it. With non-custodial, over-collateralised lending, total loss would take a severe contract exploit or a stablecoin collapsing. Both have happened in crypto, which is why you should spread risk and lend only what you can afford to lose.
Is DeFi lending safer than lending on an exchange?
It swaps one risk for another. DeFi lending removes the company and makes everything visible, but you take on code risk and manage your own keys. Exchange lending removes key management but adds counterparty risk.
What happens to my lent USDT if the stablecoin depegs?
Your position is denominated in that stablecoin, so its dollar value falls with the peg. If the peg recovers, so does your value. This is why splitting between USDT and USDC is sensible.
Are lending rates guaranteed?
No. They change with borrowing demand, often daily. The rate in the app is an estimate.
Keep your keys and still earn on your dollars: download Virtex Wallet on Google Play. This article is general information, not financial advice.
