I have the same problem. But I rent my house from 01/01/20. My home office started on 08/01/20, however the turbotax step-by-step guide is asking me for the who...

Thank you Critter. So Turbotax Guided (step by step) is not doing the math. Unfortunately it does not say "Enter the whole house expenses but just from the date...

And.. .as a personal expense, can the work permit fee be deductible from the federal income tax of a self-employed?