Benqi lending earns variable interest on supplied assets
Benqi lending lets users supply supported assets to lending pools and earn variable interest on their deposits. Supplying creates a lending position; it does not itself create a borrowing obligation. The account records the supplied balance separately from any debt and available rewards. Withdrawal depends on the assets available in the selected pool and, when the deposit supports an active loan, the collateral that must remain. An interest-bearing balance is a claim on pooled assets, so its full recorded value may exceed the amount available for immediate withdrawal.
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Supply assets without adding a borrowing obligation
A supply transaction adds assets to the selected lending market. The resulting account should show the deposit separately from borrowed balances. Existing borrowers also need to inspect how the deposit affects their collateral position.
The selected asset must match its market
Eligibility starts with an asset that the market accepts for supply. A wallet balance alone does not establish compatibility. Different token representations can have separate contracts and lending markets, even when their names resemble each other. Match the actual token to the selected market before committing funds.
Supply availability also depends on the market accepting deposits. A listed asset and an enabled supply operation are separate conditions. An unavailable deposit action does not justify sending tokens directly to a contract address.
Collateral participation remains a separate choice
The collateral setting determines whether an eligible deposit contributes to borrowing capacity. Enabling it does not draw a loan. When debt already exists, the supply preview and subsequent account health help show the deposit's effect. A position without borrowing has no loan balance to service, although pool liquidity and contract risks still affect access to its assets.
Follow a deposit through a partial withdrawal
This hypothetical example uses an accepted token, an open supply market and an account with no existing position or debt. The deposit is 184 token units, collateral participation remains off and a later withdrawal requests 74 units. Assume the pool has 94 units available at that later check. These amounts describe the example only.
Before submitting the deposit, the reader confirms that the selected market accepts the wallet's token. Any necessary spending permission must already permit the deposit. Submitting the transaction requests the deposit; successful execution creates the supplied position. Confirm that the account shows the supplied asset with no new borrowing balance.
At withdrawal, the reader checks the account again. The requested 74 units fit within the hypothetical 94 units of available liquidity. Because this account has no debt, the withdrawal does not need to preserve collateral for a loan. Successful redemption returns 74 units to the wallet and reduces the remaining supplied claim.
The principal calculation is 184 minus 74, leaving 110 units supplied before adding accrued interest. Actual reconciliation includes that interest and token rounding. If available liquidity falls below the request before execution, the reader waits or considers a smaller amount. An unexpected debt balance or different token requires stopping to resolve the discrepancy before proceeding.
How does supply interest reach the balance?
Supply interest accrues through the market's receipt-token exchange rate, which determines how much of the underlying asset the supplied position represents. The receipt-token count does not need to increase for the underlying claim to grow. Compare balances in the same units when checking interest; a receipt balance and an underlying balance measure different things.
Borrowing demand influences the rate. Utilization measures the share of lending capital currently borrowed, while the interest model determines how rates respond. The reserve factor also affects the portion of borrower interest that reaches suppliers. Supply APY, or annual percentage yield, expresses an annualized rate rather than a fixed payment agreed at deposit.
Reward incentives require separate accounting. A market may distribute incentive tokens alongside underlying-asset interest, with eligibility and distribution changing over time. Claimable rewards do not become additional units of the supplied asset merely because the dashboard includes them in a yield estimate. Compare the supply interest component and any incentive component separately when judging the position's earnings.
Holding assets in a wallet, lending and liquid staking
Holding tokens in a wallet preserves direct access to those tokens without a lending redemption. Supplying them exchanges that access for potential interest and exposure to the lending contracts. Liquid staking has a different mechanism: it represents participation in staking rather than lending demand. Supplying a liquid staking token adds a lending position on top of that token's existing exposure. Assets needed for a scheduled payment therefore face a different constraint from assets that can remain supplied during a liquidity shortage.
What limits the amount available for withdrawal?
The withdrawal amount must fit within the supplied claim, available pool liquidity and any collateral requirement that applies to the account. A large total supply figure does not establish how much the pool can return immediately.
Borrowed assets are unavailable for immediate redemption
A lending redemption requires the market to hold enough underlying assets to cover the requested withdrawal. Assets already lent to borrowers remain part of the market's accounting, but they are unavailable for immediate transfer. Repayments and new deposits can replenish liquidity; further borrowing and other withdrawals can reduce it. A displayed withdrawal estimate therefore reflects a changing pool state.
Existing debt can constrain collateral removal
When a deposit supports borrowing, removing it reduces the collateral available to support that debt. The protocol rejects a redemption that would create a collateral shortfall under its account calculation. A partial withdrawal may remain possible even when a full withdrawal does not. The permitted amount depends on the account's positions, asset valuations and applicable collateral factors.
Repaying debt or adding eligible collateral can change that account constraint. Neither action guarantees that the withdrawal pool has sufficient liquidity. Borrowers must also consider the remaining margin against liquidation, since interest accrual and price changes continue after a withdrawal. A transaction passing its collateral check does not freeze subsequent account health.
Resolve the condition that prevented withdrawal
A liquidity shortage requires a different response from insufficient collateral. Repeating the same request cannot replenish a pool, and waiting alone does not repay a loan. When the failure concerns available assets, a smaller withdrawal may fit the pool's balance. When collateral prevents removal, the account needs a smaller reduction or a change to its debt and collateral position.
Contract faults and operational restrictions can also interrupt access. A valid supplied balance does not remove those risks. If the interface and transaction result disagree, reconcile the market position with the wallet's asset balance before submitting another request. A completed exit leaves the withdrawn assets in the wallet and the intended remainder in the lending position; an unresolved discrepancy leaves the exit unconfirmed.
Benqi lending questions worth asking
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Can a lending withdrawal return a different token from the one supplied?
- A standard lending redemption returns the underlying asset of that market. It does not exchange the deposit for another token. Receiving a different asset requires a separate supported operation, with its own costs and conditions. Confirm the market's underlying asset when reconciling the returned balance.
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Does a rising supplied balance guarantee a higher dollar value?
- A larger token balance does not guarantee a higher dollar value. Supply interest can increase the amount of the underlying asset that the position represents while that asset's market price falls. Token-denominated earnings and changes in market valuation therefore describe different parts of the position's performance.
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Do unused borrowing limits earn supply interest?
- Unused borrowing capacity does not itself earn supply interest. It describes how much additional borrowing the account may support under the applicable collateral rules. Interest relates to the assets actually supplied and the rate of their market. Increasing borrowing capacity does not create an additional interest-bearing deposit.
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How does the reserve factor affect supplier earnings?
- The reserve factor directs a portion of borrower interest into protocol reserves rather than supplier earnings. It is a market parameter, not a deduction of that percentage from the original deposit. The supply rate reflects this allocation alongside borrowing activity and the market's interest model.
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Will disabling collateral automatically withdraw a deposit?
- Disabling collateral participation does not redeem the supplied assets. It changes whether the position contributes to the account's collateral calculation. The protocol can reject that change when the assets remain necessary to support borrowing. Returning the underlying asset to the wallet requires a separate withdrawal.
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Is a deposit protected from contract losses when no borrowing exists?
- A deposit without borrowing still has exposure to lending contract failures. Avoiding debt removes the account's borrowing obligation, but a vulnerability or harmful contract change can still lock or lose supplied assets. This exposure is separate from liquidation caused by insufficient collateral on an active loan.