@Jusdreiin now I am confused...here is what you stated originally:
"have taken a separate bedroom and turned it into my home office".
that reads as one room used as both a home office and a bedroom.
Regardless,
Please review the IRS FAQ's and specifically question 7. Note that you can use the simplified method in lieu of actual expenses, but that is the problem - you don't appear to have any actual expenses - which is what drives the question that TT asks:
https://www.irs.gov/businesses/small-businesses-self-employed/faqs-simplified-method-for-home-office...
Q7. Can actual expenses related to the qualified business use of the home be deducted for a taxable year in which the simplified method is used?
A. No. You cannot use the simplified method for a taxable year and deduct actual expenses related to the qualified business use of the home. The amount allowed as a deduction when using the simplified method is in lieu of a deduction for your actual expenses.
As I noted, the simplified method is just a way to eliminate a lot of the mathematical drudgery caused by a lot of small expenses. As the question in TT infers, you still need to have the expenses; it's just the method of summarizing them that is simplified. You haven't stated that you actually have the expenses, so there is no deduction to be had.
