NDIS SIL Calculator 2025-26

Supported Independent Living in plain English

SIL is NDIS funding for the people who support you in shared accommodation, help with daily living, personal care, and supervision as set out in your roster of care. It does not pay for the rent or purchase of the home itself, which is funded separately.

Funding levels depend on how much support you need across the week, including overnights. Higher ratios of staff to participants (for example 1:1) and active night shifts usually cost more than shared 1:3 supports with a sleepover model.

How this calculator models your week

The tool uses a simplified week: weekday hours at the weekday limit, Saturday at evening/Saturday rates, Sunday at Sunday rates, and your chosen overnight option applied across seven nights, with hours and nightly costs divided by your support ratio (your share of the worker's time).

Real rosters include public holidays, leave, different shift patterns, and mixed ratios, so treat the output as a ballpark for conversations with a SIL provider, not a plan budget line copied from the NDIA.

Quotes, plans, and the NDIA

Before SIL appears in your plan, a registered provider typically completes an assessment and submits a SIL quote. The NDIA decides what is reasonable and necessary against your goals and evidence. That process can take months and may differ from any online estimate.

Your support coordinator or LAC can help you compare houses, providers, and roster options while funding is being determined.

Rent, living costs, and what SIL does not cover

Participants usually pay reasonable rent contribution and ordinary living costs (food, utilities, personal items) from their own income, such as DSP. SIL line items are for support delivery, not those household bills. Always read your service agreement and occupancy terms carefully.