Its regrettable that you're having a hard time getting a straight answer from your employer. They should be able to answer this question. I would try again, and if you can't get an answer from the employer, you could reach out to their payroll provider. They may be able to help you get your records. If you kept your paystubs from 2021, or still have access to that system, you should check those. You should be able to see any insurance premiums deducted from your pay on the paystubs, and it should also show employer contributions if there are any. Its quite possible that a portion of the premium was deducted from your pay, and the remainder was paid by the employer. This would help you determine the percentage that was funded by your employer and thus taxable. For instance, if you paid $50 in post tax dollars and the employer paid $100, then 66.6% of the benefits you received would be taxable. However, if you contributed $50 in pre tax dollars and the employer paid the rest, then 100% of the benefits are taxable, as the income you used to pay the premiums was excluded from your taxable income.
