Yes, a portion is still deductible. This would be considered to be an indirect expense of the Home Office. Direct expenses benefit only the business part of your home. They include painting or repairs made to the specific area or rooms used for business. Indirect expenses are for keeping up and running your entire home. They benefit both the business and personal parts of your home.

See the screenshot below to identify the correct screen in Turbo Tax to enter the Indirect Expenses for your Home Office.