Fees

All fees associated with staking, unstaking, and holding LBTC.

Fee Summary

Minting Fee

0% minting fee. On chains where network fees are higher, such as Ethereum, users authorize a small network fee in LBTC. This fee is deducted when Lombard Protocol relays a transaction to mint LBTC, and is a contribution towards the network gas fee paid by Lombard Protocol.

Other chains: No minting fee. Lombard covers gas costs on Base, Arbitrum, Solana, Sui, and other supported chains.

How It Works

Before your first Ethereum mint, your wallet prompts you to sign an “Authorize Network Fee” message. This authorizes Lombard to deduct the fee from your minted LBTC.

You can see the exact fee amount in the staking UI before confirming your deposit. In the unlikely event where Lombard Protocol does not mint LBTC, the user may do this themselves, paying the associated network gas fee. In this scenario, there are no fees deducted by Lombard Protocol.

Unstaking Fee

Amount: 0.0001 LBTC (fixed) Applies to: All unstakes on all chains

This is called the Network Security Fee. It serves two purposes:

1. Contributes to Bitcoin network fees paid by Lombard when processing withdrawals
2. Makes denial-of-service attacks economically prohibitive

Lombard does not profit from this fee.

Minimum Unstake Calculation

Protocol Fee

Amount: 8% of Babylon staking rewards Applies to: All LBTC holders (deducted before yield distribution)

Finality Providers (validators) on Babylon take an 8% commission on all staking rewards. This fee is deducted before rewards are converted to BTC and added to the LBTC exchange rate.

Example

You never see this fee directly — it is already factored into the APY displayed on the Lombard app.

Key Clarifications

Why is there a minting fee on Ethereum but not other chains? Ethereum gas costs are significantly higher. On other chains, the cost is low enough for Lombard to absorb.

Can I avoid the unstaking fee? No. The 0.0001 LBTC fee applies to all unstakes regardless of chain or amount.

Is the protocol fee taken from my LBTC balance? No. The 8% fee is deducted from Babylon rewards before they reach the LBTC reserve. Your LBTC balance is not affected.

Do fees change? Fees may be adjusted by governance. Check the app or this document for current rates.

Next Steps

• Understanding Yield — How LBTC yield works and what to expect
• Use LBTC — Staking and unstaking guide
• FAQ — More questions about LBTC