if taxable you should have gotten a 1099 from the insurance company.
however, if your premium payments were post-tax - that is you got no tax deduction or other tax benefit they should be non-taxable. if pre-tax, like through an employer flexible savings account where you either got a deduction for the FSA contributions or the employer provided a tax fee fringe benefit, the payments would be taxable but then you should have gotten that 1099.
unsure? contact the insurance company.