NDIS guides for support workers and therapists

Written and checked by Mick Lutton, a working support worker in Mandurah WA.

• How to invoice the NDIS as a sole trader Start here: who you can invoice without registering, what you need first, and your first invoice in five steps.
• NDIS price guide 2026-27: what changed on 1 July Old vs new rates for the codes workers use, the respite (STA) unbundling, and the move to one national limit.
• NDIS invoice rejected? Why it happens and how to fix it The ten common causes, split into the five mistakes you can fix and the five problems no invoice can.
• How to invoice a plan manager, step by step What to confirm before the first shift, the fields the invoice needs, and how to follow up.
• NDIS invoice requirements: the complete checklist Every required field with the reason behind it, plus the mistakes that slip past checklists.
• NDIS MMM areas: find your remote rate How to look up the MMM area where you deliver support, which limit applies, and the isolated towns priced as remote.
• NDIS service agreements: do you need one? Whether you need one, the charges that depend on it, what the ATO needs for GST-free supports, and what to put in it.
• Can you charge for a cancelled NDIS shift? When you can charge a short notice cancellation, the 7-day and 2-day rules, and how to write the invoice line.
• Do you charge GST on NDIS supports? When NDIS supports are GST-free, when GST applies (subcontracting, private clients), and Invoice vs Tax Invoice.
• NDIS therapy codes 2026-27 for allied health The six codes each therapy profession uses from 1 July 2026, rates for 19 professions, and the cancellation, travel and report rules.
• NDIS travel claims explained Travel time caps by area, kilometres and tolls, which 799 code to use, driving participants, and the invoice lines.