Sole Trader vs Company: Choosing the Best NDIS Structure (FY 26/27)

Starting an NDIS support service business is a rewarding venture, but setting up the correct legal structure is critical for long-term success. Many new providers start as sole traders due to simplicity, but as revenues grow, transitioning to a proprietary limited (Pty Ltd) company often becomes necessary. As we navigate the 2026 and 2027 financial years, here is a detailed breakdown of Sole Trader vs Company structures for NDIS providers.

1. The Sole Trader Structure

A sole trader is the simplest and cheapest business structure to establish. You trade under your own name or a registered business name, using your personal Tax File Number (TFN) and an individual Australian Business Number (ABN). The key attributes include:

• Low Setup Costs: Minimal registration fees. You do not need to file a separate business tax return; your business income is declared on your personal tax return.
• Unlimited Liability: This is the major drawback. As a sole trader, there is no legal distinction between your personal assets and your business assets. If a client sues you or your business defaults on a debt, your personal assets (like your family home and car) are at risk.
• Personal Tax Rates: Your business profit is taxed at your individual marginal tax rate (up to 45% plus Medicare levy), which can be tax-inefficient if your business generates significant income.

2. The Company Structure (Pty Ltd)

A company is a separate legal entity. It has its own ABN, TFN, and bank accounts, and must file a corporate tax return annually. Its key features include:

• Limited Liability: The company's owners (shareholders) are generally not personally liable for the company's debts. This provides significant protection for your personal wealth in high-risk sectors like disability support.
• Flat Tax Rate: For FY 2026 and FY 2027, companies classified as "Base Rate Entities" (which includes most NDIS providers with turnover under $50 million) benefit from a flat corporate tax rate of 25.0%. Any profits retained in the company for expansion are capped at this rate.
• Higher Administration Costs: ASIC registration fees, annual review fees, and more complex bookkeeping/accounting requirements increase running costs.

3. NDIS Registration Implications

The legal structure you select impacts how you interface with the NDIS Commission. Under NDIS Quality and Safeguards guidelines, registered NDIS providers must undergo audits. Depending on your structure and registration groups:

• Verification Audits: Simpler audits for lower-risk supports (like cleaning or gardening). Individual sole traders can navigate these relatively easily.
• Certification Audits: Required for higher-risk groups (like complex behavior support or daily task assistance). These audits are detailed and examine corporate governance, risk management policies, and operational structures. Having a Pty Ltd structure makes implementing these governance frameworks more straightforward.

Summary Comparison Table

Feature	Sole Trader	Pty Ltd Company
Setup Complexity	Very Low	Moderate to High
Liability	Unlimited (Personal assets exposed)	Limited (Separate legal entity)
Income Tax Rate	Marginal rates (19% to 45% + levies)	Flat 25% (Base Rate Entity)
Super obligations	Voluntary for self	Mandatory on wages paid to directors/staff