HSA for adult children on your plan
Varies
Can You Write Off HSA for Adult Children on Your Plan?
Short answer: Kids under 26 on your plan who aren't your dependents can't use your HSA tax-free, but they can open their own HSA with the full family limit.
2026 HSA limits are $4,400 self-only and $8,750 family (plus $1,000 at 55+); withdrawals for qualified medical costs are tax-free.
Records to keep: Keep receipts, statements (1098, 1098-T, 1099, W-2G), and a note of what each cost was for. Compare itemizing to the 2026 standard deduction before you claim.
HSA for adult children on your plan
Varies
Individuals / Personal Taxes
Kids under 26 on your plan who aren't your dependents can't use your HSA tax-free, but they can open their own HSA with the full family limit.
Business justification
Kids under 26 on your plan who aren't your dependents can't use your HSA tax-free, but they can open their own HSA with the full family limit. 2026 HSA limits are $4,400 self-only and $8,750 family (plus $1,000 at 55+); withdrawals for qualified medical costs are tax-free.
Category
- Personal Tax Deductions