If you buy a home testing kid, you may treat it as a deductible medical expense if you itemize deductions (IR-2021-181). It is an expense for the diagnosis of a medical condition. The cost may also be reimbursed through a health flexible spending account (FSA), a Health Savings Account (HSA), a Health Reimbursement Account (HRA), or an Archer Medical Savings Account.
Reminder: The cost of personal protective equipment (PPE) for the primary purpose of preventing the spread of COVID-19 are also eligible expenses that may be reimbursed through the various health accounts listed above.
Items directly reducing income. Personal deductions such as for mortgage interest, state and local taxes, and charitable contributions are allowed only if deductions are itemized on Schedule A, but deductions such as for alimony, capital losses, moving expenses to a new job location, business losses, student loan interest, and IRA and Keogh deductions are deducted from gross income even if itemized deductions are not claimed.