Working Past 65 and Medicare

Working Past 65 and Medicare: A Spokane Planning Guide

Working after 65 does not create one automatic Medicare answer. Some people can delay Part B safely because they have qualifying coverage through current employment. Others need Parts A and B at 65 because the employer plan pays secondary or is not the kind of coverage that protects against a late-enrollment penalty.

The decision should be made with the employer benefits administrator, the insurance plan, Medicare, and Social Security—not from a general rule or a coworker's experience.

Start three to six months before 65

Ask the employer or plan in writing:

1. Is this coverage based on my or my spouse's current active employment?
2. Is it an employer group health plan available to employees?
3. How many employees does the employer have for Medicare coordination purposes?
4. Will the employer plan pay primary or secondary after I turn 65?
5. Must I enroll in Part A or Part B for the employer plan to pay correctly?
6. Is the prescription coverage creditable for Part D?
7. Will Medicare enrollment affect my HSA eligibility?
8. Will enrolling in Medicare affect my spouse or dependents?
9. What happens when employment or coverage ends?
10. Does the employer offer retiree coverage, a Medicare plan, or other post-employment benefit?

Keep the answers and annual creditable-coverage notice.

Active employment is the key distinction

The ability to delay Part B without penalty generally depends on group health coverage based on current employment—your own or your spouse's.

Coverage that may not protect the same way includes:

• COBRA
• Retiree coverage
• Marketplace coverage
• An individual plan
• Coverage purchased with an employer stipend
• A plan not considered employer group health coverage
• VA benefits alone
• Other arrangements not based on current employment

Do not assume an insurance card from an employer proves the coverage qualifies. Ask the plan and Medicare.

Employer size can affect who pays first

For a person age 65 or older, the number of employees can affect whether the employer group health plan or Medicare generally pays first.

Medicare's interactive enrollment guidance warns that when the employer has fewer than 20 employees, job-based coverage might not pay correctly if the person does not have both Part A and Part B.

Rules can differ for disability, End-Stage Renal Disease, multi-employer plans, federal employment, and other situations. Ask the plan:

• Who is primary after age 65?
• Who is secondary?
• What happens if Medicare is expected to be primary but the person did not enroll?
• Is the employer part of a multi-employer group?
• Are there exceptions for this specific plan?

Get the coordination answer from the plan, not only the employer's payroll staff.

Part A considerations

Many people qualify for premium-free Part A based on their own or a spouse's work history.

Enrolling in premium-free Part A at 65 can add hospital coverage, but it can also end eligibility to contribute to an HSA. Delaying Part A may therefore be important for someone continuing HSA contributions.

If Part A is claimed after age 65, coverage may be retroactive for up to six months, but not earlier than the first month of Medicare eligibility. That retroactivity can create excess HSA contributions.

A person who must pay a Part A premium has different enrollment and penalty considerations. Confirm eligibility with Social Security.

Part B considerations

Part B has a monthly premium and covers physician, outpatient, preventive, equipment, and other services.

A person with qualifying active-employment group coverage may be able to delay Part B and use a Special Enrollment Period later. Delaying can avoid paying for overlapping coverage, but only when the current plan protects the person.

A person should consider enrolling at 65 when:

• The employer plan is secondary to Medicare
• The employer is small and requires Medicare to pay first
• The coverage is COBRA or retiree coverage
• The coverage is not based on current employment
• There is no health coverage
• The plan says it will reduce or deny payment without Medicare
• HSA concerns have been resolved and Medicare is the better total-cost choice

The eight-month Part B Special Enrollment Period

If a person had qualifying coverage based on current employment after 65, the Part B Special Enrollment Period generally lasts eight months after the employment ends or the group health coverage ends, whichever happens first.

The window begins even if the person elects COBRA.

The eight-month Part B period is different from the shorter periods commonly available to join Medicare Advantage, Part D, or buy certain Medigap coverage. Waiting until month eight can create a drug or supplemental coverage gap even when Part B enrollment remains timely.

Plan the entire transition, not just Part B.

How to enroll in Part B after employer coverage

Social Security allows a person with Part A to apply for Part B during the Special Enrollment Period. Documentation of employer coverage may be required, commonly including:

• Application for Enrollment in Medicare Part B (CMS-40B)
• Request for Employment Information (CMS-L564), or current equivalent process

Online application may be available.

Start before employer coverage ends. Social Security states that coverage generally begins the first day of the month after enrollment, though timing options can vary. Confirm the requested effective date.

Keep proof of submission and employer coverage.

HSA rules require advance planning

Once any part of Medicare is effective, the individual can no longer make or receive HSA contributions without potential tax consequences.

Medicare advises people working past 65 with an HSA to stop contributions six months before retiring or applying for Social Security or Railroad Retirement Board benefits. This accounts for potential retroactive Part A.

Important questions include:

• When will Part A become effective?
• Will Social Security retirement benefits be claimed?
• Are the employee and employer both stopping contributions?
• Does payroll need advance notice?
• Is the contribution limit prorated?
• Were excess contributions already made?
• Can existing HSA funds still be spent?

Medicare enrollment does not prevent use of existing HSA funds for qualified expenses, but contribution eligibility ends. Get tax advice from a qualified professional.

Part D and creditable drug coverage

A person can generally delay Part D without penalty while maintaining creditable prescription coverage.

Creditable means the coverage is expected to pay, on average, at least as much as standard Medicare drug coverage. The employer or plan must disclose whether coverage is creditable.

Keep each annual Notice of Creditable Coverage.

After creditable coverage ends, going 63 days or more without Part D or other creditable coverage can trigger a late-enrollment penalty that may continue as long as the person has Part D.

Do not assume:

• A discount card is creditable
• VA coverage works the same for every family member
• A spouse's drug coverage continues after employment ends
• Joining Part D will have no effect on employer or union coverage

Joining a Medicare drug plan can cause the employee, spouse, or dependents to lose employer or union coverage in some plans. Ask before enrolling.

Compare the employer plan with Medicare

Employer plan costs

Review:

• Employee premium
• Spouse and dependent premium
• Deductible
• Coinsurance and copayments
• Out-of-pocket maximum
• HSA employer contribution
• Provider network
• Prescriptions
• Dental and vision
• Coverage while traveling
• Family effect if the employee leaves the plan

Medicare costs

Review:

• Part B premium
• Income-related adjustments
• Medicare Advantage premium and cost sharing, or Medigap premium
• Part D premium and drug costs
• Medical out-of-pocket exposure
• Provider access
• Prior authorization
• Dental, vision, and hearing
• Travel
• HSA contribution loss
• Effect on dependents

A single employee may find Medicare attractive while family coverage remains more expensive or unavailable for the spouse. Compare the household, not only the Medicare-eligible person.

Original Medicare with Medigap and Part D

After Parts A and B begin, a person can choose Original Medicare and may add:

• Medigap to pay some Original Medicare cost sharing
• A stand-alone Part D plan

The one-time Medigap Open Enrollment Period generally begins the first month the person is 65 or older and enrolled in Part B and lasts six months.

Delaying Part B because of employer coverage generally delays this Medigap window until Part B begins. That can preserve the protected buying opportunity for retirement.

Verify Washington-specific rights and deadlines before leaving employer coverage.

Medicare Advantage

A person with Parts A and B can consider Medicare Advantage. Most plans include Part D.

Compare:

• Providers
• Hospitals
• Prescriptions
• HMO or PPO
• Referrals
• Prior authorization
• Copayments and coinsurance
• Maximum out of pocket
• Travel
• Extra benefits
• Effective date

Employer or retiree coverage may offer its own Medicare Advantage plan. Joining an outside plan can cause loss of the employer benefit. Ask first.

COBRA is not active-employment coverage

COBRA may temporarily continue the employer plan after work ends, but it does not extend the Part B Special Enrollment Period.

Medicare warns:

• The eight-month Part B window starts when work or active coverage ends, even if COBRA is elected.
• If Medicare is available but not elected, COBRA may pay only a small portion.
• COBRA may end when Medicare begins, depending on timing and circumstances.

Do not wait for COBRA to expire before addressing Part B.

Retiree coverage

Retiree coverage often expects Medicare to pay first. The retiree plan may require both Parts A and B.

Ask:

• Is enrollment in Parts A and B mandatory?
• Does the retiree plan include drug coverage?
• Is the drug coverage creditable?
• Is it a supplement, Medicare Advantage plan, or other arrangement?
• Can coverage be restored if dropped?
• Will joining another plan terminate retiree benefits?
• Are spouse or dependent benefits affected?

Never cancel retiree coverage without written answers.

Marketplace coverage

Marketplace coverage is not active-employment group coverage for the Part B Special Enrollment Period.

A person eligible for premium-free Part A generally cannot receive Marketplace premium assistance. Continuing tax credits after Medicare eligibility can create tax consequences.

Coordinate the end of Marketplace coverage with the Medicare effective date.

Self-employed people

Self-employment alone does not prove the health coverage is an employer group health plan. Medicare advises asking the insurer whether the arrangement meets the definition.

A sole proprietor or small business owner should verify:

• Plan type
• Employer size rules
• Who pays first
• HSA impact
• Dependents' coverage
• Business and tax consequences

Use qualified tax and benefits professionals when needed.

Spouse's active employment

Coverage through a working spouse can support a Part B Special Enrollment Period if it is qualifying employer group health coverage.

Confirm:

• The spouse is actively employed
• The plan covers the Medicare-eligible spouse
• Employer size
• Primary versus secondary payer
• Creditability of prescriptions
• What happens when either employment or coverage ends

Domestic partner coverage may not be treated the same as spousal coverage under Medicare enrollment rules. Verify directly.

VA, TRICARE, and other government coverage

VA benefits do not operate like an employer group health plan and do not automatically create a Part B Special Enrollment Period. VA drug coverage may be creditable, but Medicare access outside VA facilities is a separate issue.

TRICARE rules can require Parts A and B at 65, with limited exceptions. Federal employee and military coverage have specialized rules.

Contact the applicable program and Medicare.

A retirement transition timeline

Six months before retirement

• Confirm retirement and coverage end dates
• Stop HSA contributions if Medicare's six-month rule applies
• Compare Medicare structures
• Gather creditable-coverage notices
• Check Medigap timing
• List prescriptions and providers

Two to three months before coverage ends

• Apply for Part B with the intended date
• Confirm Part A status
• Compare Medigap or Medicare Advantage
• Compare Part D
• Check providers and drugs
• Ask how dependents remain covered

One month before coverage ends

• Confirm Medicare effective dates
• Confirm new plan or policy approval
• Pay required premiums
• Confirm old plan end date
• Save documents and reference numbers

After Medicare begins

• Verify cards and premium billing
• Confirm providers and pharmacies
• Review first claims
• Resolve HSA payroll changes
• Keep employer coverage proof permanently

Common mistakes

• Assuming work automatically allows Part B delay
• Ignoring employer size
• Confusing COBRA or retiree coverage with active employment
• Enrolling in Part A while still contributing to an HSA
• Waiting until the eighth month to arrange Part D or Medigap
• Losing the creditable-coverage notice
• Joining Part D without checking the effect on employer coverage
• Canceling retiree coverage before understanding restoration rights
• Comparing only the employee instead of the family
• Missing effective-date coordination

Where to get help

• Employer benefits administrator: exact group plan and dependent rules
• Current insurer: coordination and creditable coverage
• Social Security: Parts A and B enrollment
• Medicare: enrollment periods and coordination
• Washington SHIBA: free, unbiased counseling
• Washington OIC: state insurance and Medigap questions
• Qualified tax professional: HSA, premium tax credit, and tax questions
• Licensed insurance agent: comparison of represented Medicare plans and policies

Your next step

Ask the employer or insurer for written answers to four questions: Is the coverage based on current employment? Who pays first after 65? Is the drug coverage creditable? When does coverage end?

Then coordinate Parts A and B, HSA contributions, Part D, and supplemental coverage as one timeline.

Health Insurance Options LLC is a licensed independent insurance agency. We may be compensated by insurers and do not represent every Medicare plan. Currently, we represent 8 organizations offering 75 products in the area. Contact Medicare.gov, 1-800-MEDICARE, or Washington SHIBA for information about all options. We are not affiliated with or endorsed by the U.S. government or Medicare.