If you are asking if you can claim health insurance you paid for your adult children, yes, but only if you provided over one half of their total support in 2016

In addition, to deduct their health insurance, you will need to itemize and the total expenses for you, your spouse, and your dependents exceed 10% of your adjusted gross income (7.5% if you're 65 or older as of December 31, 2016). The deduction is limited to the expenses above and beyond this amount.

See Deducting Medical, Dental, and Vision Expenses

To enter your medical /insurance expenses -

• Click on Federal Taxes (Personal using Home and Business)

• Click on Deductions and Credits

• Click on I'll choose what I work on (if shown)

• Scroll down to Medical

• On Medical Expenses, click the start or update button