Teller vs Aave: which should you borrow with? (2026)

Short answer: choose Aave if you hold plenty of crypto, want permissionless, DeFi-native borrowing, and are comfortable managing liquidation risk. Choose Teller if you want an unsecured loan paid out as cash to your bank account, or a crypto-backed loan that can’t be margin-called mid-term. They overlap on “borrowing in crypto” but solve genuinely different problems, and this guide walks through both so you can pick the right one for your situation.

Teller vs Aave at a glance

How Aave works

Aave is one of the leading decentralized money markets. Lenders deposit assets into shared liquidity pools; borrowers draw from those pools by posting collateral worth more than the loan. Everything is enforced by smart contracts:

• Overcollateralized by design. You deposit more value than you borrow. That buffer is what protects the pool.
• Variable rates set by utilization. When a pool is heavily borrowed, rates rise to attract deposits; when it’s idle, rates fall. Your cost of borrowing floats.
• Health factor and liquidation. If your collateral’s value falls (or your debt grows) enough that your health factor drops below the threshold, liquidators can seize collateral to repay the pool, usually with a penalty.
• Permissionless. No credit check, no KYC, no application. Anyone with a wallet and collateral can borrow.

What Aave does not offer is unsecured retail lending. There is no path to borrow on Aave without posting collateral first (flash loans exist, but they repay within one transaction and aren’t a consumer loan). If you found this page searching for a no-collateral alternative, that’s the core difference. Our DeFi lending explainer covers the pool model in more depth.

How Teller differs

Teller comes at borrowing from the credit side rather than the collateral side, with two distinct products:

1. No-collateral personal loans via a marketplace

Teller is a qualification layer over a network of partner lenders, not a lender itself. You run a single pre-qualification: a soft check, about four minutes, with no hard credit pull and no collateral pledged. Teller checks your answers and on-chain signals (like the Teller Score, a 0–1000 on-chain credit score) against every lender’s eligibility rules and tells you whether you pre-qualify. A lender that approves you disburses cash directly to your own bank account. Pre-qualification is not approval; a hard inquiry only happens if you later submit a full application.

2. Fixed-term crypto-backed loans with no margin calls

On the asset-backed side, Teller’s protocol writes fixed-term loans against crypto collateral with no margin calls and no mid-term liquidation. A price dip during the term can’t force a liquidation; the trade-off is a real due date — repay or roll over by maturity, or the collateral can be liquidated. That’s the structural opposite of Aave’s health-factor model: on Aave you manage a ratio continuously, on Teller you manage a calendar.

When to choose Aave instead

Being honest here matters more than winning the comparison. Aave is the better choice when:

• You have ample collateral and want to keep the position open-ended, drawing and repaying whenever you like with no maturity date.
• You want fully permissionless borrowing. No identity, no credit tier, no application — just a wallet. Teller’s unsecured path necessarily involves KYC and a credit decision at the lender.
• You understand and actively manage liquidation risk. If you monitor your health factor, keep a conservative loan-to-value, and can top up collateral quickly, Aave’s model is battle-tested and deeply liquid.
• You want to borrow one crypto asset against another as part of a DeFi strategy, not to get cash into a bank account.

Specific listed assets, rates, and parameters change with governance votes — as of mid-2026 the model above holds, but check Aave’s site for current terms.

Which should you pick? By scenario

• “I need cash and don’t have (or won’t lock) collateral.” Teller. Aave has no unsecured retail path; the legitimate route is a regulated no-collateral personal loan paid out as cash, which is what pre-qualification routes you to.
• “I hold ETH and want liquidity without selling.” Either works. Pick Aave if you want an open-ended variable-rate position and will watch your health factor. Pick Teller if you want a fixed term with no margin calls and would rather manage a due date than a price chart.
• “I’m a DeFi power user looping or hedging.” Aave. That’s exactly what a permissionless money market is built for.
• “My credit is thin but my wallet history is strong.” Teller. On-chain signals like wallet history and verified stablecoin income feed the underwriting picture, which pure-collateral protocols ignore entirely.

Also comparing centralized lenders? See Teller vs Nexo and Teller vs Ledn for the CeFi side of this decision.

Where to start

If the unsecured path is what you’re after, the fastest way to find out where you stand is to run a quick pre-qualification— a soft check that tells you whether you pre-qualify, with no hard credit pull and nothing pledged. If you’d rather borrow against your crypto, the no-margin-call guide explains how fixed-term loans differ from health-factor borrowing.