Where do I enter home office reimbursement expense for s-corp?

My wife and I are 80/20 officers of an S-corp. We both work from home in separate offices.  The corporation reimburses us for home office expenses, such as utilities, mortgage interest etc, using an accountable plan.  I see a line item in TurboTax business for "Utilities", but not for things like mortgage interest.  Where do I enter this expense and other related expenses in Turbotax business?