The 80/20 Rule, explained for operators.

What the rule actually says

The 80/20 Rule is a provision of the CMS Medicaid Access Final Rule (formally, the Ensuring Access to Medicaid Services rule) published by the Centers for Medicare and Medicaid Services. The provision requires that, for three categories of HCBS services, at least 80 percent of the Medicaid payment received by the provider must be spent on direct caregiver compensation: wages, salaries, benefits, and required payroll taxes for the workers who actually deliver the care.

The remaining 20 percent is the budget for everything else the provider does: administration, supervision, training, scheduling, billing, audit defense, technology, rent, insurance, and profit.

Who it applies to

The rule applies to providers delivering any of three HCBS service categories paid for under Section 1915(c), 1915(i), 1915(j), or 1915(k) Medicaid authorities:

• Homemaker services. Cleaning, meal preparation, laundry, and other household tasks that allow the participant to remain in the home.
• Home health aide services. Personal-care assistance with activities of daily living delivered in the home by an aide working under a plan of care.
• Personal care services. Hands-on assistance with bathing, dressing, mobility, toileting, eating, and other activities of daily living.

Other HCBS services (case management, respite, habilitation, supported employment, day services) are not directly subject to the 80/20 pay-through requirement, though they remain subject to the broader transparency, reporting, and audit provisions of the same rule.

The two dates that matter

A two-year on-ramp sits between the reporting start and full enforcement. Operators who use it to build a deep, sealed documentation track record arrive at 2030 with the evidence their state already trusts.

The pay-through math

The pay-through ratio is straightforward arithmetic on the reporting period:

Direct caregiver compensation includes the worker's gross wage or salary plus the employer's share of required payroll taxes (FICA, FUTA, SUTA) and the cost of benefits the employer provides. It does not include training time charged to overhead, supervisor or manager wages, or any administrative payroll.

Total Medicaid payments received is the gross revenue from the state Medicaid agency for the three covered service categories during the reporting period. It does not include payments for other HCBS services, private-pay revenue, or grants.

A worked example: an agency receives $1,000,000 in Medicaid payments for personal care services during a quarter, and pays its caregivers a total of $850,000 in wages and required benefits during the same quarter. The pay-through ratio is 85 percent, comfortably above the 80 percent threshold.

What evidence you need to keep

The rule requires reporting; states will require evidence to back the reporting. The evidence that protects an agency at audit time tends to fall into four buckets:

1. Direct compensation records. Pay stubs, hours worked, wage rates, benefit costs, and required payroll tax payments for every caregiver, segregated from administrative payroll.
2. Medicaid revenue records. Authorization documents, service-delivery confirmations (EVV records), claims submitted, payments received, by service category and by date.
3. Plan of care evidence. Current plans of care for every participant, with the service authorization that generated the billing. The auditor needs to see that hours billed correspond to hours authorized and delivered.
4. Time and attendance evidence. Shift sign-in records, EVV check-ins, service notes per visit. The audit trail needs to show that the caregiver who got paid for a shift actually worked that shift.

Each of these is straightforward when it is recorded continuously and harder to assemble after the fact. Agencies that build the record continuously, with a tamper-evident timestamp at the moment each event happens, walk into the audit with their case already made.

How to prepare today

The agencies that arrive well at 2028 are the agencies that start treating every operational event as evidence today. Three concrete moves:

1. Segregate caregiver payroll from admin payroll. Your accounting system needs a clean ledger split so the pay-through calculation can run on the press of a button. Operators commonly find that they have been bundling supervisor time into the caregiver line; the rule will not forgive that.
2. Continuously record direct-care evidence. EVV-verified shifts, signed plan-of-care updates, and service notes recorded at the moment of delivery. The auditor's patience for reconstructed records is finite, and the rule does not require them to extend it.
3. Generate and seal a quarterly pay-through dossier. By the time state reporting begins in July 2028, you want at least four to eight quarters of sealed dossiers in hand. The agencies who built the dossier from 2026 onward arrive in 2028 with two years of evidence the state can verify independently.

HCBS.AI does all three automatically. The system segregates the payroll ledger at billing time, records every operational event to a tamper-evident audit chain, and generates the pay-through dossier on the first of every month. We built the platform around the 2028 milestone because the agencies in our network asked us to.

Common questions

What if my pay-through is already above 80 percent?

You are in good shape on the threshold itself, but the rule also requires that you be able to prove the ratio with sealed, dated, auditor-readable evidence. Operators commonly run at 82 or 85 percent pay-through without having the documentation to demonstrate it.

What if I deliver services outside the three categories?

The pay-through threshold applies only to homemaker, home health aide, and personal care services. If your agency delivers other services (case management, day services, supported employment, respite, habilitation), those services are not directly subject to the 80 percent floor. They remain subject to the rule's transparency, reporting, and audit provisions.

Will states adjust the threshold for rural or small providers?

The rule allows states to apply for limited hardship variances under defined conditions, primarily for very small providers in areas where applying the strict 80 percent floor would jeopardize access to care. The variance process is at the state's discretion, and the variance, if granted, is documented in the state's Medicaid plan. Most providers should plan for the 80 percent floor as the binding standard.

Does the rule cover 1915(c) waiver services for IDD?

Yes, where those waiver services include homemaker, home health aide, or personal care as defined categories. Most 1915(c) waivers for IDD include personal care, which puts those payments inside the rule's scope. Check your state's specific waiver and rate definitions to confirm.

What happens if a provider falls below 80 percent?

The state response is set by each state's Medicaid agency. Common responses include a corrective-action plan with a remediation timeline, suspension of new service authorizations, recoupment of past payments for periods of non-compliance, and, in repeated or severe cases, exclusion from the state Medicaid program. The federal rule sets the floor; states design the enforcement.