# InsufficientTaoBalance (/docs/errors/chain/InsufficientTaoBalance)

The coldkey's free TAO balance is below the amount a TAO-side operation needs: a transfer between coldkeys, a burn or recycle, or a subnet-registration lock. Check the coldkey's balance with `btcli wallet balance` against the amount being moved.

Declared by the `SubtensorModule` pallet; it classifies to the semantic code [`insufficient_balance`](/docs/errors/insufficient-balance).

## Remediation [#remediation]

Fund the signing account or reduce the amount; check with `btcli wallet balance`

The same explanation is available in the terminal: `btcli explain InsufficientTaoBalance`.