Is incremental profit the net profit of the business?

No. Incremental profit is the profit that has been gained from increasing sales during a specific period of time, but it's not the same as overall net profit. It is used to determine the effectiveness by a certain managerial decision, for example, a business owner might choose to calculate incremental profit after launching a new holiday campaign.

Incremental profit is different from the gross or net profit of a business. Incremental gross profit or net profit is the profit a business gains due to an increase in sales during a particular period. While the net profit is the total profit a business gains during a certain period. Using the incremental revenue formula you can determine the additional revenue gained from a marketing campaign, a certain product or investment.