Maturity models are used to examine the interwoven aspects of a business function or discipline on a spectrum of expected maturity. A maturity assessment provides executives and teams with a view of the organization’s current state compared to expectations, revealing areas that are less mature than expected and areas of strength that can be leveraged. In this report, we introduce the Forrester Marketing Planning And Budgeting Maturity Model and describe how it can be used to evaluate planning and budgeting capabilities within a marketing organization.