Are free NDIS calculators accurate?

Free tools are as accurate as the data they are built on and as specific as the inputs you provide. A calculator using the current NDIS Support Catalogue and updated after each price guide revision will be accurate for price limits. However, no free tool can account for every local market variation, your individual…

Can I use tool outputs as evidence in my planning meeting?

Yes, in the sense that a well-documented budget estimate prepared using current rates is a legitimate way to demonstrate you have done your homework. The NDIA does not formally accept calculator outputs as submitted evidence in the same way it accepts OT reports or medical certificates, but bringing a clear breakdown…

Do tools replace professional advice?

No. A decision guide can tell you that you are a candidate for self-management, but a plan manager or support coordinator can tell you whether your specific situation has compliance risks that the guide did not model. A SIL eligibility self-check can flag you as likely eligible, but only an occupational therapist's…

How often should I re-run tools?

Re-run budget and rate tools at the start of each plan period and whenever the NDIS Price Guide is updated, typically in July each year. Re-run eligibility and decision guides whenever your circumstances change, such as a change in living situation, a significant change in your support needs, or after a major life…

What if a tool gives me a result that contradicts what my planner said?

Document the discrepancy and raise it directly with your planner. Planners are human and sometimes apply incorrect rates or outdated rules. If you have a current-rate calculator output showing a different number, that is a legitimate basis for asking your planner to explain their figure. If the disagreement persists, a…

Are there tools specifically for First Nations participants?

General NDIS calculators apply to all participants, but culturally safe tools that contextualise NDIS options within community and country are less common. Some Aboriginal Community Controlled Organisations and First Nations disability services have developed guidance materials adapted for community contexts. When…

Free NDIS Tools & Calculators: How to Use Them

Updated 19 Aug 2026 · reviewed by Prakash Bartaula, Founder, Novida

Free NDIS tools and calculators take the guesswork out of budgeting, provider selection, and planning meetings. This guide explains every major tool, how to use…

Frequently asked questions

Are free NDIS calculators accurate?: Free tools are as accurate as the data they are built on and as specific as the inputs you provide. A calculator using the current NDIS Support Catalogue and updated after each price guide revision will be accurate for price limits. However, no free tool can account for every local market variation, your individual…
Can I use tool outputs as evidence in my planning meeting?: Yes, in the sense that a well-documented budget estimate prepared using current rates is a legitimate way to demonstrate you have done your homework. The NDIA does not formally accept calculator outputs as submitted evidence in the same way it accepts OT reports or medical certificates, but bringing a clear breakdown…
Do tools replace professional advice?: No. A decision guide can tell you that you are a candidate for self-management, but a plan manager or support coordinator can tell you whether your specific situation has compliance risks that the guide did not model. A SIL eligibility self-check can flag you as likely eligible, but only an occupational therapist's…
How often should I re-run tools?: Re-run budget and rate tools at the start of each plan period and whenever the NDIS Price Guide is updated, typically in July each year. Re-run eligibility and decision guides whenever your circumstances change, such as a change in living situation, a significant change in your support needs, or after a major life…
What if a tool gives me a result that contradicts what my planner said?: Document the discrepancy and raise it directly with your planner. Planners are human and sometimes apply incorrect rates or outdated rules. If you have a current-rate calculator output showing a different number, that is a legitimate basis for asking your planner to explain their figure. If the disagreement persists, a…
Are there tools specifically for First Nations participants?: General NDIS calculators apply to all participants, but culturally safe tools that contextualise NDIS options within community and country are less common. Some Aboriginal Community Controlled Organisations and First Nations disability services have developed guidance materials adapted for community contexts. When…