Borrow against WETH
Teller pools accept WETH as collateral at up to 83.3% LTV, with the cheapest offer at 1% APR across 6 networks. Every loan is fixed-term with no margin-call, so a price fall during the loan cannot liquidate your collateral.
| Collateral | Network | LTV | APR |
|---|---|---|---|
| WETH | Ethereum | 83.3% | 1% |
| WETH | Base | 50% | 1% |
| WETH | Polygon | 50% | 1% |
| WETH | Arbitrum | 50% | 1% |
| WETH | ApeChain | 66.7% | 15% |
| WETH | BNB Chain | 50% | 15% |
Pool data read . Rates and LTVs are set per pool and change when operators change them.
How much you can borrow against WETH
Ethereum mainnet carries the deepest WETH book on Teller (3 pools at 83.3% LTV and 1% APR). At 83.3%, ten WETH backs a loan of roughly the ceiling shown above in USDC. Teller quotes the ceiling. Borrowing under it will not buy you liquidation safety, because a fixed-term loan has none to buy. It buys a smaller repayment on the due date.
Base and Polygon carry their own WETH pools at 50%. The gap between them and mainnet is pool configuration rather than a view on the asset: each pool operator sets its own collateral ratio, and the mainnet operators have set theirs tighter.
Your ETH becomes WETH first
Teller pools hold ERC-20 tokens, and ether is not one. WETH9, deployed at 0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2 on Ethereum with 18 decimals, is the wrapper that fixes that. It holds your ETH and issues a token that trades one for one against it, permanently and in both directions.
You will not wrap by hand. Pick ETH in the borrow sheet and Teller prepends a deposit() call to the transaction batch, so you sign the wrap and then the borrow. It leaves 2.5% of your ETH alone to cover gas, since a full wrap would leave nothing to pay for the borrow that follows.
Every chain has its own canonical WETH. Base and Optimism share 0x4200000000000000000000000000000000000006, Arbitrum uses 0x82af49447d8a07e3bd95bd0d56f35241523fbab1, and Polygon uses 0x7ceb23fd6bc0add59e62ac25578270cff1b9f619. Pools reject anything else calling itself WETH.
A price drop cannot liquidate you mid-term
Rate, LTV and the roll window all lock when the loan opens, and the protocol holds your WETH until you repay or roll. An ETH drawdown on day 12 of a 30-day loan changes nothing about what you owe. Aave and Compound both liquidate on price and both cap ETH collateral below Teller’s mainnet LTV.
Miss the due date and you forfeit the collateral. Pools run a 30-day payment cycle and add a marketplace fee on top of the quoted rate, set per pool and shown before you sign.
For the wider comparison, read borrowing against crypto without selling and Teller against Aave.
Frequently asked questions
Either works. Pick ETH in the borrow sheet and Teller prepends a WETH deposit() call to the transaction batch, so you sign the wrap and then the borrow. It leaves 2.5% of your ETH unwrapped to cover gas.
USDC on every network here, and it is where almost all the lending capacity sits. Ethereum also carries funded pools lending ELON and pufETH against WETH, so read the row rather than assuming dollars.
Nothing happens to the loan. Teller loans are fixed-term and carry no liquidation threshold during the term, so a mid-term drawdown cannot force a sale of your collateral. The obligation is the due date.
Each pool operator sets its own collateral ratio, and the mainnet WETH pools have set theirs tighter than the Base pool. The difference is configuration rather than a view on the asset, and both quote from the same live matrix.
Roll the loan into a new term at the rate on offer that day, or forfeit the collateral. Teller pools run a 30-day payment cycle, and the roll window is fixed when the loan opens.
Open a loan
Connect a wallet, deposit your collateral, and borrow a stablecoin. No credit check, no application.
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