Every funded support in your plan sits in a support category, based on why you need it. You can spend flexibly within a category, but generally can't move money between categories. And if your plan lists a "stated support", that funding has to be used for that specific thing.
One newer thing to know: most plans now release funding in instalments called Funding Periods (usually every three months) rather than all at once. Anything you don't spend in one period rolls over to the next, within the same plan.
The golden rule for all spending: it needs to be an NDIS support that relates to your disability and helps you work towards your plan goals.
If you're ever unsure whether something's claimable, ask before you buy. Our Gurus answer these questions every day. Book a session or email hello@providerchoice.com.au.