Most Medicaid news that reaches families is about eligibility. Who qualifies, who has to prove they worked eighty hours, whose exemption got narrower. The rule CMS published in the Federal Register on July 23 does none of that. It changes how states raise their own share of the Medicaid bill, and CMS estimates it pulls $220.3 billion out of Medicaid payments between 2026 and 2035.

No family will get a notice about this one. It is a cut to the pot your state draws from when it pays for waiver services, personal care hours, and the agencies that staff them.

How a Provider Tax Becomes Waiver Money

Medicaid is a match program. A state puts up its share, the federal government adds its share, and the combined money pays for services. Forty-nine states and the District of Columbia raise part of their share by taxing health care providers, mostly hospitals, nursing facilities, and managed care plans. The state collects the tax, uses it to draw the federal match, and pays the money back out through Medicaid rates.

Federal law has always limited how far that circle can close. When a state effectively guarantees providers get their tax dollars back, the arrangement is a "hold harmless," and it has been capped at 6% of net patient revenue. The proposed rule, filed under code CMS-2452-P, replaces that single 6% ceiling with ceilings specific to each state and each class of provider, locked to whatever each tax looked like on July 4, 2025.

What Changes and When

• New thresholds take effect October 1, 2026, based on taxes enacted and imposed as of July 4, 2025.
• Starting in fiscal year 2028, which begins October 1, 2027, Medicaid expansion states must lower their allowable threshold by half a percentage point every year until it reaches 3.5% in 2032.
• Taxes on skilled nursing facilities and on intermediate care facilities for individuals with intellectual disabilities are exempt from that annual step-down.
• The alternative "75/75" test, which let certain taxes clear the 6% line, sunsets.
• States would report tax revenue and net patient revenue quarterly, and face reduced federal matching funds if errors go uncorrected for two years.

CMS projects providers would pay $163.7 billion less in taxes over that decade while collecting $220.3 billion less in Medicaid payments. Federal Medicaid spending falls by $245.8 billion, state spending by $138.2 billion.

The Detail That Matters for Disability Services

Nursing facilities and ICF/IID settings keep their tax base through the phasedown. The community services that let a person live at home have no equivalent carve-out, and this is the second CMS proposal this summer to work on the money behind those services rather than on eligibility, after the cap on state-directed payments that fund disability home care. Nursing facility care is a mandatory Medicaid benefit. HCBS waivers are optional, which puts them in the category states reach for first when the non-federal share gets thin.

Families have already watched the thin-share math play out this year. Colorado capped paid family caregiving hours at 56 per week in July and cut provider rates 2%. Maryland's Developmental Disabilities Administration published wage tables that cut some family caregivers by as much as $20 an hour, then delayed them to October after a rally. Kentucky reversed an August 1 rate cut across four waivers only because a one-time $255 million surplus appeared, and officials there have said the reductions projected for 2028 are larger than the ones just avoided. Fiscal year 2028 is also when this phasedown takes its first half-point.

Filing a Comment Before September 21

The comment period runs 60 days from publication and closes September 21, 2026. Electronic comments go to regulations.gov under docket CMS-2026-2476, referencing file code CMS-2452-P. Mailed comments go to CMS, HHS, Attention: CMS-2452-P, P.O. Box 8010, Baltimore, MD 21244-8010.

A useful comment is short and specific. Name your state, the waiver your family is on, the service the waiver pays for, and the number of hours you receive. If your state has already cut rates, capped hours, or grown its waiting list this year, say so with the dates. CMS weighs comments that describe program effects it has to answer in the final rule, and generic opposition gives it nothing to respond to. Advocacy organizations will file long technical comments about the hold harmless math; the thing they cannot supply is what happens in your house when a rate drops.

Two other things are worth doing while the window is open. Ask your state Medicaid agency what portion of its non-federal share comes from provider taxes, since that number tells you how exposed your state is to this rule. And if your child or adult family member is on a waiver waiting list, confirm your application date is on record, because waiting list position is set by the date your paperwork was received, not by when funding gets tight.

This rule is a proposal with a slow fuse. Nothing changes on a family's service plan in 2026, and the first threshold reduction is more than a year out. The comment window, though, is the last point at which the math is still open for argument.