How does instant TON withdrawal works?

When staked, TON goes into Tonstakers pool. At the start of a new validation cycle, the protocol sends all TON from the pool to the validators, who then stake them and return them with rewards. During the cycle, TON cannot be added to or removed from the validators.

Newly deposited TON in the pool do not participate in staking until the start of the next cycle. Tonstakers uses them as liquidity for instant withdrawals.

Instant withdrawal of TON is only possible if there’s enough liquidity in the pool to process the request. If liquidity is insufficient, you’ll need to wait for new TON deposits into the pool or use regular withdrawal at the end of the cycle.