How to Calculate Marginal Revenue. The successful operation of a small business requires owners and management to understand a few basic economic principles. Defined as the additional amount of ...

To calculate the marginal tax rate on the investment, you'll need to figure out the additional tax on the new income. In this example, $500 will be taxed at 15% and $500 at 25%.

Your marginal tax rate is the highest tax rate you will pay. Use our calculator to determine your marginal tax rate for the 2024 tax year.