Not affiliated with AHIP/CMS/Medicare; educational only, not insurance advice
Calculate a planning timeline
Planning estimate: the local plan cites the official pages below but does not include their full rule text. Detailed date boundaries have not been reverified during this offline build. Confirm your dates with SSA / Medicare before changing contributions or coverage.
Tool entries are not stored or sent; they stay in this page’s memory. Clearing or refreshing removes the displayed entries. Your browser may retain autofill information independently. A saved PDF contains your entries; keep it private. Do not enter Medicare or Social Security numbers.
Print includes entries, results, assumptions and sources. Dates use YYYY-MM-DD. Entered dates are not coverage determinations.
Employment and active coverage are separate dates
This planner assumes a qualifying Part B Special Enrollment Period based on current employment coverage. It selects the earlier of employment ending and that coverage ending, then shows eight calendar months starting the next month. COBRA does not extend that assumed window. Retiree coverage is not treated as current-employment coverage here.
Example: employment ends September 30, 2026 and active coverage ends December 31, 2026. The estimate uses September and shows October 1, 2026 through May 31, 2027. Reversing which event ends first still uses the earlier event.
Enrollment while still covered may be possible. Contact SSA before your employer coverage ends to coordinate the Part B start date and avoid a coverage gap. This tool does not decide eligibility, an effective date, or other special enrollment situations.
Official sources
Planning reference as of Oct 11, 2026. Source URLs are from the local SEO plan; offline build, no live-source verification.