I'm pretty sure the $1500 should go on line 2 of form 8889?
https://www.irs.gov/instructions/i8889"Include on line 2 only those amounts you, or others on your behalf, contributed to your HSA in 2017. Also, include those contributions made from January 1, 2018, through April 17, 2018, that were for 2017. Do not include employer contributions (see line 9) or amounts rolled over from another HSA or Archer MSA. See Rollovers, earlier. Also, do not include any qualified HSA funding distributions (see line 10). Contributions to an employee's account through a cafeteria plan are treated as employer contributions and are not included on line 2."
The tricky part is figuring out which question to answer in the software to get that number to show up there. I've figured it out in TurboTax and now freetaxusa.