Arizona ALTCS Application Process for Young Adults with Disabilities

Why the Application Timeline Matters

ALTCS approval unlocks the funding for home and community-based services that DDD coordinates — attendant care, habilitation, respite, day programs, and more. Without ALTCS, a young adult who qualifies for DDD receives only unfunded support coordination: a case manager who checks in every 180 days but cannot authorize direct services.

The application process involves two parallel tracks (financial eligibility and medical eligibility), and each has its own documentation requirements and processing time. Starting late means a gap between school exit and funded adult services — exactly the cliff that transition planning is supposed to prevent.

Step 1: Gather Clinical Documentation (Before Age 18)

The medical eligibility track depends on the Pre-Admission Screening (PAS) interview, and the PAS score depends on how thoroughly the applicant's functional limitations are documented. Start collecting records at least six months before you plan to apply:

• Neuropsychological evaluation reports
• Medical records showing diagnoses, medications, and treatment history
• Functional behavior assessments from school
• IEP progress reports and transition assessments
• Any occupational therapy, speech therapy, or behavioral health records

The evaluations should document the applicant's "worst day" functioning across daily living tasks. Assessors cannot score limitations they don't know about, and families who bring incomplete records often receive PAS scores that understate the actual support need.

Step 2: Apply for SSI at Age 18

When the student turns 18, parental income and assets are no longer deemed for SSI purposes. For many families, this is the moment the young adult becomes financially eligible for Supplemental Security Income on their own.

SSI eligibility can automatically establish Medicaid eligibility, which simplifies the ALTCS financial review. Apply through the Social Security Administration as soon as possible after the 18th birthday.

SSI processing time varies by case. You do not need to wait for SSI approval before submitting the ALTCS application, but having it in place streamlines the financial determination.

Step 3: Submit the ALTCS Application

The application is submitted through the Health-e-Arizona Plus portal at healthearizonaplus.gov. You can also submit a paper application through the local AHCCCS office.

The application triggers the financial review, which evaluates:

• The applicant's countable monthly income against the 2026 cap of $2,982
• Countable assets against the $2,000 limit
• Any exemptions (primary home, one vehicle, personal property, ABLE accounts, Special Needs Trusts)

If the applicant's income exceeds $2,982, a Qualified Income Trust (Miller Trust) must be established. The QIT is a dedicated bank account — set up with the help of an attorney — into which excess monthly income is deposited. The trust satisfies the income test without reducing the applicant's countable income; it simply routes it through a Medicaid-compliant structure.

Most young adults transitioning from school will have income well below the threshold (SSI alone pays under $1,000/month in 2026). The QIT becomes relevant for adults with SSDI, work income, or other sources that approach or exceed the limit.

Step 4: Complete the PAS Interview

After the ALTCS application is submitted, AHCCCS schedules the Pre-Admission Screening. An AHCCCS clinical assessor conducts the interview, scoring the applicant's cognitive function, behavioral stability, and ability to perform activities of daily living.

The applicant must score at least 40 points to qualify for the developmental disability waiver. Both the applicant and their primary caregiver must be present — the caregiver can provide context about daily routines, safety risks, and assistance levels that the applicant may not be able to articulate themselves.

Bring all the documentation gathered in Step 1. The more specific the evidence, the more accurate the assessment. Vague descriptions ("he needs help sometimes") score lower than specific descriptions backed by evaluation data.

What Happens After Approval

Once both financial and medical eligibility are confirmed, the applicant is enrolled in ALTCS and assigned to one of two managed care organizations: Mercy Care or UnitedHealthcare Community Plan. The DDD support coordinator then works with the MCO to authorize specific services under the Individual Support Plan.

If the application is denied, the family has the right to request an administrative review and appeal. Additional evidence may be submitted as part of that process if the family believes the documentation or PAS assessment did not reflect the applicant's needs.

The Arizona IEP Transition to Adulthood Guide includes a step-by-step ALTCS readiness tracker that maps each of these stages against the parallel DDD and VR application timelines.

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