A method and a computer program product for modeling early defect removal are provided. The method includes selecting a first set of software development practices to model as a baseline plan, where each of the software development practices has an associated defect removal efficiency (DRE) and is associated with a development phase of a software development cycle. The method also includes selecting a second set of the software development practices to model as a to be plan, where each of the software development practices has a configurable DRE for the to be plan. The method further includes calculating defect removal in each of the development phases as a function of the DRE values, adjusting configuration settings for the to be plan to shift an amount of the defect removal earlier in the development phases of the to be plan as compared to the baseline plan, and outputting a graphical representation.