Medical expenses for him could only be deducted as an itemized deduction on Schedule A. The total of ALL itemized deductions must be greater than the standard deduction for your filing status to have any tax benefit.
To claim the medical expenses you would need to claim him as a dependent on your tax return under the Qualifying Relative rules.
To be a Qualifying Relative -
1. The person cannot be your qualifying child or the qualifying child of any other taxpayer. A child is not the qualifying child of any other taxpayer if the child's parent (or any other person for whom the child is defined as a qualifying child) is not required to file an income tax return or files an income tax return only to get a refund on income tax withheld.
2. The person either (a) must be related to you or (b) must live with you all year as a member of your household.
3. The person's gross income for the year must be less than $4,200 (social security does not count) in 2019
4. You must provide more than half of the person's total support for the year.
5. The person must be a U.S. citizen or a U.S., Canada, or Mexico resident for some part of the year.
6. The person must not file a joint return with their spouse.
Standard deductions for 2019
- Single - $12,200 add $1,650 if age 65 or older
- Married Filing Separately - $12,200 add $1,300 if age 65 or older
- Married Filing Jointly - $24,400 add $1,300 for each spouse age 65 or older
- Head of Household - $18,350 add $1,650 if age 65 or older
