Conflicts of home office benefit and no FICA in rental income

[LIpeng Wu]

I am now figure out the landlording tax. I know some landlord report their home as home office to get partial deduction and depreciation of their primary residency. However, generally self-employment also needs to pay FICA tax (15.3%) , but rental income actually is exempt form FICA part. So I am wondering whether it is legal to claim both home office benefit and free from FICA on Rental income from IRS, or otherwise you have to select one of them. Which one do you choose?