The HSA contributions deadline was April 15 ... are reported as an adjustment to income on Line 13 of Schedule 1 (Form 1040). You also need to submit Form 8889 with your tax return.

Your HSA custodian or trustee is required to prepare ... 1099-SA to complete IRS Form 8889 and include it with your Form 1040 when you file your taxes. HSAs are known for their triple tax advantage.

The form has a line for reporting your direct contributions to your HSA, and you’ll carry that deduction to line 25 of your Form 1040. The form also has a line to report employer contributions ...