A project budget details the expected revenue, expenses, and profit for your project. Using project budget tracking, you can watch how much of your money has been spent over time, see how much is remaining, and make course changes as needed. Consider what would happen if one of your project's tasks took substantially longer than expected. If you don't notice it till the end, the project may end up being over budget. However, if you keep track of your expenses and recognise this when it happens, you can try to offset the increased costs elsewhere in the project. In most cases, the income side of your budget is uncomplicated.