What happens if an agent leaves the commission percentage blank on a listing contract?

When an agent leaves the commission percentage blank on a listing contract, the contract becomes unenforceable. This is because the absence of a specified commission percentage means that one of the essential components of the contract is missing. A listing contract is intended to establish clear terms between the seller and the agent, including the commission that the agent will earn for their services. Without this key detail, the parties have not fully agreed upon the terms of the agreement, which undermines the enforceability of the contract. In legal terms, a contract lacking critical components cannot be upheld in a court of law, leaving the agent without legal recourse to claim the commission.

The other scenarios, such as it becoming void, expiring, or illegal, do not accurately reflect the situation since the contract still exists but lacks enforceable terms. Thus, the correct outcome is that it becomes unenforceable due to the missing commission percentage.