Yes, you can use money from your HSA tax-free to pay your long-term care insurance premiums, with the maximum annual tax-free amount based on your age.
If you’re 40 or younger, you can withdraw up to $430 tax-free from an HSA in 2020 to pay the premiums; if you’re age 41 to 50, you can take out $810; if you’re age 51 to 60, $1,630; if you’re age 61 to 70, $4,350; and if you’re age 71 or older, $5,430. If you and your spouse both have long-term-care policies, you can each use money tax-free from your HSA to pay premiums, up to the aged-based maximum for each of you (based on your ages by the end of the year). These limits increase slightly each year for inflation.
if you use an HSA to pay the premiums there is no tax deduction for them
