A property tax exemption excuses all or a portion of the assessment because the assessee has met some criteria allowed by the State Constitution. There are exemptions for property used by homeowners, veterans, disabled veterans, churches, religious organizations, welfare organizations and others. A property cannot receive more than one type of exemption. The county is reimbursed by the state for property tax revenue lost by the homeowner's exemption, but not for other types.
This applies to museums that are free and open to the public.