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Background: Implementation studies indicate that the addition of tuberculosis diagnosis and treatment services into the community health extension workers' tasks—that is ‘task-shifting’—improved case detection and treatment outcomes in Ethiopia. Given resource and operational constraints, only a limited number of areas can be targeted by an expanded task-shifting program. Therefore, we mapped the distributional disparities in tuberculosis services across regions and districts and modelled the equity pathways towards optimising national scale-up of this task-shifting intervention in Ethiopia.