"If you bought medical insurance policies on your own for yourself or your family, you might qualify for a self-employment tax deduction on the premiums." [1]

"If you are enrolled in an employer-sponsored health insurance plan, your premiums may already be tax-free. If your premiums are made through a payroll deduction plan, they are likely made with pre-tax dollars, so you would not be allowed to claim a year-end tax deduction." [2]

[1]: https://www.nerdwallet.com/article/taxes/self-employment-tax... [2]: https://www.investopedia.com/are-health-insurance-premiums-t...