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Fuego includes a protocol-level deposit system that lets you lock XFG for a fixed term and earn interest — with no bank, no custodian, and no counterparty risk. The interest is calculated and enforced by the blockchain itself. When you create a deposit, your funds are locked inside a special transaction output. When the term expires, you submit a withdrawal transaction and the principal plus accrued interest is returned to your wallet.

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Deposit parameters

The deposit system has fixed parameters enforced by the network:
ParameterValue
Minimum deposit amount800 XFG
Lock term16,440 blocks (~3 months at 180 blocks/day)
Banking transaction fee0.008 XFG
There is currently one standard term: 16,440 blocks. You cannot choose a shorter or longer duration.

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Locked vs unlocked balance

Your wallet balance shows two deposit sub-balances:
  • Locked deposit balance — XFG locked in an active deposit that has not yet matured.
  • Unlocked deposit balance — XFG from deposits that have reached their unlock height and are ready to withdraw.
Neither balance is available for ordinary spending until you explicitly withdraw the deposit.

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How interest accrues

Interest is computed at the protocol level based on the deposit amount, the lock term in blocks, and the block height at which the deposit was created. No third party holds your funds or pays you interest from a reserve — the protocol mints the interest as part of the deposit withdrawal transaction, similar to how block rewards are minted. The exact rate is determined by the network consensus rules active at deposit creation time.

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Creating and withdrawing a deposit

1

Check your available balance

Open your wallet and confirm you have at least 800 XFG in your spendable balance, plus a small amount to cover the 0.008 XFG fee.
2

Create the deposit

In the wallet TUI or GUI, navigate to the Deposits section and submit a Create Deposit request. Specify the amount (minimum 800 XFG). The wallet broadcasts a transaction that locks your funds and records the unlock height on-chain. You will receive a transaction hash confirming the deposit was created.
3

Wait for the unlock height

Your deposit is locked for 16,440 blocks — roughly 3 months. You can monitor the current block height against your deposit’s unlockHeight using a block explorer or the wallet status display. The funds cannot be spent during this period.
4

Withdraw your deposit

Once the unlock height is reached, submit a Withdraw Deposit request using your deposit ID. The wallet broadcasts a withdrawal transaction, and the principal plus interest is credited to your unlocked deposit balance, then available for spending after the standard 10-block spendable age.
Deposits are locked for approximately 3 months (16,440 blocks). There is no early exit. Do not deposit funds you may need access to before the term ends.

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Burn2Mint

The wallet TUI also exposes a Burn2Mint feature, which is an alternative mechanism for converting holdings within the Fuego ecosystem. Refer to the TUI documentation for details on how to use it.