Guides

• 2027 HSA Limits: $4,500 and $9,000 — Rev. Proc. 2026-24 sets 2027 HSA limits of $4,500 self-only and $9,000 family, with HDHP minimum deductibles of $1,750 and $3,500.
• Bronze and Catastrophic Plans Are HSA-Eligible in 2026 — The One Big Beautiful Bill Act treats bronze and catastrophic Marketplace plans as HSA-compatible from January 1, 2026.
• The HSA Last-Month Rule and Testing Period — Eligible on December 1? You can contribute the full-year limit — if you stay eligible through the following December.

Tools

• Your real 2026 HSA limit
• Did you put too much in your HSA?
• Form 8889 Part I from your HSA deposits

Comparisons

• Form 8889 Part I: by hand or from your deposits