Integrated Assessment Tool Aged Care — What the IAT Measures and How to Prepare

The Integrated Assessment Tool (IAT) is the standardised clinical instrument used under Australia's Single Assessment System (SAS) to determine what level of aged care funding your parent qualifies for. Since the SAS replaced the old ACAT/ACAS and RAS networks in December 2024, every aged care assessment — whether at home, in a GP clinic, or at a hospital bedside — uses the IAT. The outcome directly determines your parent's Support at Home classification (and quarterly funding budget), or their eligibility for residential care and the Transition Care Program.

What the IAT Actually Measures

The IAT evaluates 12 distinct domains of your parent's functional, cognitive, and social capacity. The assessor — a clinically qualified SAS delegate — scores each domain based on what your parent can and cannot do independently.

The 12 domains cover daily living activities (bathing, dressing, eating, toileting), mobility and falls risk, cognition and memory, behaviour and psychological symptoms, communication, social participation, home environment safety, medication management, clinical and nursing needs, carer availability and sustainability, cultural and language needs, and end-of-life care preferences.

Each domain contributes to an overall needs profile that maps to one of the eight Support at Home funding classifications. Classification 1 provides $10,731 per year in government funding, while Classification 8 provides $78,106 per year. An under-documented assessment can place your parent one or two classifications lower than their actual needs warrant — a difference of up to $7,730 annually.

Why the "Best Day" Problem Matters

The single biggest risk during an IAT assessment is that your parent presents better than their daily reality. Older people frequently minimise their difficulties during brief clinical encounters, particularly when anxious or trying to maintain dignity. They might walk steadily for the three-minute observation period while falling twice weekly at home. They might answer orientation questions correctly under the assessor's direct attention while struggling to manage medications or remember meals when alone.

The assessor can only score what they observe and what is documented. If the assessment captures a "best day" snapshot, the resulting classification will underestimate your parent's needs.

How to Prepare for the Assessment

Write a carer statement. Before the assessment, document your parent's "worst day" functional capacity in writing. Include specific incidents: falls (dates, injuries), medication errors, wandering episodes, times they left the stove on, inability to shower without assistance. Hand this directly to the assessor at the start of the visit.

Gather medical evidence. Collect the GP's most recent care plan, hospital discharge summaries from the last 12 months, specialist reports (particularly geriatrician or neuropsychology), and the current medications list. The assessor can reference this documentation when scoring clinical and nursing domains.

Have a support person present. You or another family member should attend the assessment. The assessor is required to consider carer input. Your observations about daily function at home carry significant weight, especially for cognitive and behavioural domains that a single clinic visit cannot capture.

Request a hospital bedside assessment if your parent is an inpatient. Hospital-based assessments are triaged as urgent. The hospital social worker or discharge coordinator can submit a fast-track referral through the My Aged Care health professional portal. This bypasses community waitlists that can run 3 to 11 months.

If You Disagree With the Outcome

The assessor issues a formal Notice of Decision and a Support Plan. If you believe the classification is too low, you can request a Support Plan Review through My Aged Care (1800 200 422). You can also lodge a formal reassessment request if your parent's condition deteriorates — there is no limit on how many reassessments can be requested, but each must be clinically justified.

The Hospital to Aged Care transition guide includes a structured carer statement template and a ward-side assessment preparation checklist designed specifically for families navigating the IAT while their parent is still in hospital.

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