Primary-source registry
Limits, rules, and effective dates stay separate.
Annual amounts come from final IRS revenue procedures. Eligibility and correction logic is tied to IRS and Medicare guidance.
| Source | Used for | Status | Official page |
|---|---|---|---|
| IRS Revenue Procedure 2025-19 | 2026 HSA contribution and HDHP limits | final | Open source |
| IRS Revenue Procedure 2026-24 | 2027 HSA contribution and HDHP limits | final | Open source |
| IRS Publication 969 — HSAs and other tax-favored health plans | Monthly eligibility, last-month rule, spouses, Medicare, and excess contributions | current-publication | Open source |
| Medicare.gov Working past 65 | Six-month HSA contribution stop warning | current | Open source |
| IRS New HSA tax benefits under the One, Big, Beautiful Bill | 2025 telehealth and 2026 bronze, catastrophic, and direct-primary-care changes | current | Open source |