The 2026 Part D late enrollment penalty is 1% of the national base beneficiary premium ($37.20) for every full month you went without creditable prescription drug coverage after your Initial Enrollment Period ended. That's $0.372 per uncovered month, rounded to the nearest $0.10. The penalty is permanent — it never goes away and has no cap. If you delayed 12 months, you owe roughly $4.50/mo extra on top of your Part D premium for the rest of your life. For your specific situation in Durham County, call Rob Simm at (828) 761-3326 — free, no obligation.

What Durham families ask

What are the most common Part D penalty questions?

These are the four questions I hear most from NC residents who delayed Part D coverage.

Is the penalty really permanent?

Yes. Unlike a Part B penalty which can sometimes be resolved through an SEP, the Part D late enrollment penalty stays on your premium for as long as you have Medicare drug coverage. There is no forgiveness mechanism.

Does it increase every year?

Your number of penalty months stays the same, but the dollar amount recalculates annually based on the current national base beneficiary premium. If the base premium rises, your penalty rises with it.

What if I had VA or TRICARE benefits?

VA prescription coverage and TRICARE are both considered creditable coverage. If you had either one continuously, you owe no Part D penalty. Keep your documentation — you may need to prove it.

Can I enroll in Part D now to stop the clock?

You can enroll during the Annual Enrollment Period (Oct 15 – Dec 7) or a qualifying Special Enrollment Period. Every month you wait adds another 1% of $37.20 to your permanent penalty.

⚠️ The Part D penalty is permanent and has no cap

Unlike a one-time fee, this penalty is added to your monthly Part D premium forever. A 3-year gap means $13.40/mo extra — for life. A 5-year gap means $22.30/mo extra — for life. And because the base premium can increase each year, your penalty dollar amount can grow even though your uncovered months stay fixed. The only way to avoid it is to have had creditable coverage the entire time.

The difference

What does Medicare.gov tell you vs. what a broker actually checks?

What do you need to know?	Medicare.gov	Rob Simm — NC #10447418
Penalty formula	Generic: “1% per month”	Exact 2026 math: 1% of $37.20 × your uncovered months, rounded to nearest $0.10
Creditable coverage check	“Ask your employer”	I review your disclosure letters and confirm whether your gap counts
Penalty accuracy	No way to verify what CMS charged you	I audit your penalty amount against your actual coverage history
Part D plan selection with penalty	Plan Finder — no penalty context	I factor your penalty into total monthly cost so you pick the cheapest net plan
Extra Help / LIS eligibility	Generic income thresholds	I check if you qualify — Extra Help can eliminate your penalty entirely
Cost	$0 (just your time and confusion)	$0 — paid by carrier, same commission regardless of plan

2026 Medicare numbers

What are the key 2026 Medicare figures that affect your penalty?

$202.90

Part B premium per month

2026 standard rate. Higher with IRMAA surcharge based on income above $106,000.

$283

Part B annual deductible

You pay this before Medicare covers 80% of outpatient care.

$9,350

MA in-network out-of-pocket max

2026 cap on in-network Medicare Advantage spending.

$2,100

Part D out-of-pocket cap

No catastrophic Rx costs in 2026. Insulin capped at $35/month.

💡 Broker Tip — Durham County

Many Durham County residents who retired from Duke University or Duke Health had creditable employer drug coverage but never kept the annual disclosure letter proving it. If you're facing a Part D penalty, the first thing I do is help you contact your former employer's HR department to get a retroactive Creditable Coverage Disclosure. That single letter can eliminate your entire penalty. Don't pay it until we've checked.

— Rob Simm, Licensed Medicare Broker, NC #10447418

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Rob Simm · Licensed NC Medicare Broker · NPN #10447418

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Real scenario · Durham County

What does a 1-year delay vs. a 3-year delay actually cost?

Delayed 3 years

+$13.40/mo

36 uncovered months × 1% of $37.20 = $13.39, rounded to $13.40/mo. Added to your Part D premium permanently. Over 20 years of Medicare, that's $3,216 in penalty payments alone — on top of whatever your plan costs.

Delayed 1 year

+$4.50/mo

12 uncovered months × 1% of $37.20 = $4.46, rounded to $4.50/mo. Still permanent, still for life — but a fraction of the 3-year cost. Every month you wait adds another $0.37 to this number forever.

It pays to talk to the right broker

Does it cost anything to get a Part D penalty estimate from a broker?

It doesn’t — because I get paid by the insurance carrier to manage your plan. Most call centers get paid more to steer your business toward certain carriers based on volume and contracts. The only thing I’m optimizing for is making sure you’re covered correctly when you actually need it. That’s what keeps people coming back. And referring their neighbors.

Common questions

Frequently asked questions

How is the Part D late enrollment penalty calculated in 2026?

Multiply 1% of the 2026 national base beneficiary premium ($37.20) by the number of full months you went without creditable drug coverage after your Initial Enrollment Period ended. That equals $0.372 per uncovered month, rounded to the nearest $0.10. Example: 24 months uncovered = 24 × $0.372 = $8.93, rounded to $8.90/mo — added to your Part D premium permanently.

Does the Part D penalty ever go away?

No. The Part D late enrollment penalty is permanent. It is added to your monthly Part D premium for as long as you have Medicare prescription drug coverage. Unlike some other Medicare costs, there is no way to have it removed or reduced once it applies.

What counts as creditable prescription drug coverage?

Creditable coverage is prescription drug coverage that is expected to pay, on average, at least as much as Medicare's standard Part D plan. Common examples include employer or union drug plans, TRICARE, VA benefits, and Federal Employee Health Benefits. Your plan is required to send you a notice each year telling you whether your coverage is creditable. Keep every one of those letters.

Can I avoid the Part D penalty if I had employer coverage?

Yes — if that employer coverage was creditable. Your employer must provide a written Creditable Coverage Disclosure notice annually. If you kept that letter and your coverage was creditable, you owe no penalty. If you cannot find the letter, call your former HR department and request a copy before enrolling in Part D.

Does the Part D penalty amount change each year?

The number of penalty months stays fixed, but the dollar amount recalculates each year because it is based on the current national base beneficiary premium. In 2026 that premium is $37.20. If the base premium rises in 2027, your penalty amount will also increase — even though your uncovered months stay the same.

Related Medicare guides

Medicare Enrollment in NC – 2026 Guide Extra Help/LIS Eligibility NC 2026 Compare Medicare Advantage Plans in NC Extra Help / LIS in NC – 2026 Eligibility Guide Working Past 65 – Medicare Enrollment Special Enrollment Periods in NC Cheap Health Insurance Without Employer Coverage Free Medicare Quotes Online

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Robert Simm

Licensed Independent Medicare Broker

Helping NC families navigate Medicare since 2014. Independent — I work with all carriers and get paid the same regardless of which plan you choose. I verify provider networks with Duke Health directly and answer my own phone the next year when something changes.

📞 (828) 761-3326 📋 NC #10447418 🏥 AHIP Certified ⭐ 5.0 · 20+ reviews 📍 2731 Meridian Pkwy, Durham NC 27713 🕐 Mon–Fri 9am–7pm ET

Last Updated: 2026-05-03 | Reviewed By: Robert Simm, Licensed Medicare Broker, NC #10447418 | Next Review: October 2026

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