Medicare Has 57 Enrollment Deadlines. Miss One, and You Pay a Permanent Surcharge.
You're about to turn 65. Or you're helping a parent who just did. Either way, you're staring at a system that punishes honest mistakes with lifelong financial penalties — and doesn't tell you what those mistakes look like until after you've made them.
The Part B late enrollment penalty is 10% of your premium for every 12-month period you were eligible but didn't sign up. The Part D penalty is 1% per uncovered month. Both are permanent. Both compound. And both are triggered by rules that sound reasonable until you learn the exceptions.
COBRA doesn't count as employer coverage. Your HSA contributions become retroactively taxable. A standard power of attorney doesn't work at the Social Security Administration. Retiree insurance requires Part B enrollment or it stops paying primary.
Most people find this out after it costs them money.
The Enrollment Sequencing System
This guide doesn't explain Medicare. It sequences your enrollment.
Instead of a reference manual you read and hope you remember, this is a chronological action plan you follow — step by step, form by form, deadline by deadline. Three complete pathways, each built for a different situation:
- Turning 65 and enrolling for the first time — from the month your Initial Enrollment Period opens to your first claim
- Retiring after 65 with employer coverage — coordinating the handoff from your group plan to Medicare without a coverage gap
- Enrolling a parent who can't manage it alone — establishing legal authority, filing on their behalf, and navigating the resistance
Each pathway tells you exactly what to do, when to do it, and which form to use. No cross-referencing. No guessing which rule applies to your situation.
What You Get — 10 PDFs
- 15-chapter step-by-step guide (guide.pdf) — every enrollment scenario, every form, every deadline, every penalty calculation, organized in the order you'll actually need them
- 20-item quick-start checklist (checklist.pdf) — the printable timeline that starts six months before 65 and runs through your first year of coverage
- Penalty calculator (penalty-calculator.pdf) — plug in your delay and see the exact monthly surcharge you'd pay for the rest of your life
- IRMAA income brackets (irmaa-brackets.pdf) — know before you file whether you'll owe the high-income surcharge, and the two-year lookback rule that determines which tax return they use
- Forms reference sheet (forms-reference.pdf) — every Medicare enrollment form, who needs it, where to get it, and key contact numbers on one printable page
- 12-month enrollment timeline (enrollment-timeline.pdf) — month-by-month action plan from six months before 65 through your first year, with a key deadline summary table
- COBRA transition protocol (cobra-transition.pdf) — the eight-month window, what qualifies as employer coverage, and a step-by-step checklist for the handoff
- HSA tax coordination worksheet (hsa-coordination.pdf) — the exact month to stop contributions, the six-month retroactive rule, and how to fix excess contributions
- Coverage comparison (coverage-comparison.pdf) — Original Medicare + Medigap vs. Medicare Advantage side by side — costs, networks, prior authorization, and a decision worksheet
- Medicare Savings Programs reference (savings-programs.pdf) — the four programs, 2026 income limits, what each pays, and how to apply
Who This Is For
- You're turning 65 and your employer's HR department handed you a stack of pamphlets that answered none of your questions
- You're working past 65 and need to know whether to delay Part B — and what happens to your HSA when you do enroll
- You're an adult child trying to manage Medicare for a parent, and you just found out the Social Security Administration won't talk to you with a standard power of attorney
- You're on COBRA or a Marketplace plan and need to transition to Medicare without a gap or a penalty
- You've already missed a deadline and need to understand exactly what it costs and what your recovery options are
Why Not Just Use Medicare.gov?
Medicare.gov has the information. All of it. Scattered across hundreds of pages, written for a regulatory audience, and organized by program part — not by the sequence of decisions you actually need to make.
Free SHIP counselors are excellent but underfunded — 67 million beneficiaries share $70 million in counseling funding, and wait times during enrollment season stretch for weeks. Insurance brokers are fast and free, but they're compensated by the carriers they recommend, so their guidance stops at the plan selection. They won't help you file Form SSA-1696 or coordinate your HSA cessation timing.
An elder law attorney will handle everything — for $350 to $650 per hour, with a two-to-six-week wait for an initial consultation.
This guide sits in the gap. It's the step-by-step protocol for the 80% of the enrollment process that doesn't require an attorney — the forms, the deadlines, the coordination, the penalty avoidance — organized in the order you need it, available the minute you need it.
Satisfaction Guarantee
If the guide doesn't help you navigate your Medicare enrollment more clearly, email [email protected] and we'll make it right.
Start with the Free Checklist
Download the 20-item Quick-Start Checklist — the printable enrollment timeline from six months before 65 through your first year of coverage. If the checklist alone saves you a phone call, the full guide saves you the entire process.
Get the Full Enrollment Guide
For , you get 10 PDFs — the complete 15-chapter guide, quick-start checklist, penalty calculator, IRMAA brackets, forms reference, 12-month timeline, COBRA transition protocol, HSA coordination worksheet, coverage comparison, and Medicare Savings Programs reference.