A marketing budget is an allocated amount of money used to plan and implement a business marketing campaign. It typically includes funds that are allocated to different channels such as advertising, public relations, search engine optimization, content marketing, and other activities. It should be outlined in the overall company budget and includes a projected cost for each activity as well as a timeline for the marketing activities. A marketing budget should be monitored regularly to ensure that the marketing strategy is on track and that all resources are being used in the most effective way in order to achieve desired objectives.