If you have an eligible Home Office the expenses can be deducted based upon the square footage of the office as a percentage of the square footage for the home. Property taxes, mortgage interest, utilities and assets to be depreciated including the home office itself can be used. The OIH expenses is LIMITED to the net Sch C income and what is not used currently is carried forward. Review the Sch C & 8829 carefully ... here is more info on the subject :
Review this IRS website for Home Office eligibility - https://www.irs.gov/businesses/small-businesses-self-employed/home-office-deduction
IRS Publication 587 Business Use of Your Home - https://www.irs.gov/pub/irs-pdf/p587.pdf
TurboTax support FAQ for a home office - https://ttlc.intuit.com/questions/1901224-can-i-take-the-home-office-deduction
