The success fee of an investment banker usually ranges from 0.5% to 2% of the transaction value for debt finance and between 2% to 5% of the transaction value for equity finance. This fee varies based on the size and complexity of the deal. Larger transactions generally incur lower fees, while smaller or more intricate deals may attract higher fees. This fee structure aligns the investment banker’s interests with those of their clients, as the banker is incentivized to successfully complete the transaction. The success fee compensates for the expertise, effort, and resources the investment banker invests in facilitating mergers, acquisitions, or other financial deals.