The Medicare Advantage Reminder Letter That Was Due in July Isn’t Coming. Here’s the 10-Minute Check It Would Have Prompted.

Nearly 6 in 10 Advantage members didn’t use their dental benefit last year. A federal rule was going to make plans mail you a list of what you hadn’t used. It was scrapped before the first envelope went out, so December 31 is now on you.

Almost every Medicare Advantage plan covers dental: 98% of individual plans include some dental benefit in 2026 (KFF, June 5, 2026). Ask how many members used it last year and the hands drop. In the Commonwealth Fund’s national survey of 1,846 Advantage enrollees, 42% said they used their dental benefit. The other 58% didn’t (Commonwealth Fund, Feb. 20, 2025).

The letter that never arrived

Washington noticed. A 2024 Medicare rule required every Advantage plan to mail each member a personalized notice between June 30 and July 31 listing the supplemental benefits that member hadn’t used in the first half of the year, with the phone number needed to go use them. The first mailing was due this summer (KFF, May 1, 2026; 24/7 Wall St., Sept. 1, 2026).

It didn’t go out. In the 2027 Medicare Advantage and Part D final rule, effective June 1, 2026, CMS rescinded the requirement before it took effect. The agency’s reasons: the same information is already in your annual Evidence of Coverage booklet, plans communicate in other ways, and a survey showed 70% of enrollees used at least one supplemental benefit last year (CMS fact sheet, April 2, 2026; KFF, May 1, 2026).

The practical result is simple. Nobody is required to tell you what you’re leaving on the table. The Evidence of Coverage tells you what the plan offers, not what you personally haven’t used.

What this means for your wallet

Dental allowances on Advantage plans are real money with a short shelf life. Whether it’s a yearly dollar amount or a set number of covered visits, the benefit generally doesn’t roll over; most allowances expire December 31, and some reset quarterly or monthly (Kiplinger, Nov. 13, 2025). If your plan covers two cleanings a year and you’ve had zero, the second one doesn’t move to 2027.

Plans that run these benefits through a prepaid “flex” card typically load a few hundred dollars to over a thousand a year (Kiplinger, Nov. 13, 2025). CMS wrote the reminder rule because it saw people choosing plans for these extras and then not using them (KFF, May 1, 2026). Whatever you don’t spend by the reset date doesn’t come back.

A second clock starts in 2027. From then on, any card used for supplemental benefits must be electronically tied to covered items, checked in real time at the register, and limited to the plan year (CMS fact sheet, April 2, 2026). CMS said members were often confused about what the cards cover (KFF, May 1, 2026). Real-time checking fixes that, and it makes a leftover balance more definitively gone at year-end.

The 10-minute check the letter would have prompted

Do this once this fall, while there’s still time to get an appointment on the calendar before December.

• Call the member-services number on your card (or log into the member portal) and ask three questions: What dental benefits do I have left for 2026? What is my remaining allowance or card balance? When does each one expire or reset? Write the answers on the back of the Evidence of Coverage.
• Book the cleaning now. Most Advantage members are in plans that allow one dental exam a year with no cost sharing (Commonwealth Fund, Feb. 20, 2025). If you’re overdue, a fall appointment uses a benefit that’s already yours.
• Check the network before you sit in the chair. Many Advantage plans have a set network of dentists the benefit pays for (KFF, June 5, 2026). Ask the office directly whether they take your specific plan, not just “Medicare.”
• If you have a flex card, get the approved list in writing. Starting in 2027, plans must provide card instructions, a support line, and a backup reimbursement process if the card is declined (KFF, May 1, 2026). Ask for the covered-items list now anyway.
• Read the 2027 Evidence of Coverage before you let the plan auto-renew. If dental was the reason you picked this plan, confirm it’s still there at the same level. Annual Enrollment for 2027 coverage runs October 15 through December 7, 2026 (24/7 Wall St., Sept. 1, 2026).

The catch

The same 2027 rule that ended the reminder letter also loosened several marketing rules, including the required separation between “educational” events and sales appointments (KFF, May 1, 2026). A lunch seminar can now become a sales pitch in the same sitting. Your dental allowance is a reason to call your current plan, not a reason to switch because someone promised a bigger flex card. Compare 2027 dental terms side by side, on paper, at your kitchen table.

The takeaway

The government was going to send you a nudge. It changed its mind. So here’s the nudge: one call, three questions, one appointment. That’s the whole letter.

This is information, not medical, financial, or insurance advice. Plan benefits vary; confirm yours with your plan documents or by calling your plan. Senior Savers is independent and not affiliated with Medicare or any insurer.

Want the plain-English version of the week’s Medicare and money news? Join the free Senior Savers newsletter. No sales calls, ever. You’ll hear from us only when you ask to.