Why is my money that I contributed towards my HSA included in my Gross income?

[tndrfoot]

I contributed 1812.00 to my HSA in 2019.  Why is that amount included in my gross income on my tax form?

[VictorW9]

Usually, HSA contributions are pre-tax and the interest earned is tax-free. If your employer made the contribution post-tax, then you can claim the pre-tax deduction when filing your taxes but highly unlikely that your employer would have done that.