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SIL, SDA, STA and MTA explained

A plain-English guide to the difference between Supported Independent Living, Specialist Disability Accommodation, short-term and medium-term accommodation in the NDIS.

Accommodation5 min read · Updated 14 October 2026 · Innovara iQ team

NDIS home and living supports come with a lot of acronyms. The simplest way to remember them is that some fund the support a person receives, and some fund the home itself.

SIL: Supported Independent Living

SIL funds help and supervision with daily tasks so a participant can live as independently as possible, often in a shared home with other participants. It pays for the support, such as personal care and household tasks, not for rent or the house.

SDA: Specialist Disability Accommodation

SDA funds the home itself. It is specially designed or modified housing for participants with extreme functional impairment or very high support needs. A participant can receive SDA and SIL together, with SDA covering the building and SIL covering the support.

STA: Short-term accommodation

STA, often called respite, funds a short stay away from home, including support, accommodation and activities. It is typically used to give participants a break or a new experience, and to give families and carers a rest.

MTA: Medium-term accommodation

MTA funds somewhere to live for a limited period while a participant waits to move into their long-term home, for example while SDA is being built or home modifications are completed.

How Innovara iQ helps

Innovara iQ Accommodation manages SIL, SDA, MTA and STA in one place, with houses, rooms, residents, vacancies, rosters of care, shared and one-to-one hours, and invoicing for each resident.

This guide is general information only and is not legal, payroll or compliance advice. Always check current requirements with the NDIA, the NDIS Quality and Safeguards Commission or Fair Work.

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