One of the earliest decisions small business owners face is whether to use cash accounting or accrual accounting. This choice affects how you record income, expenses, and how your tax liabilities are calculated.
But it’s also an area where confusion often arises — especially around the difference between GST reporting and income tax accounting methods.
Let’s break it down.
Cash Accounting
Under the cash basis, income is recorded when you actually receive money, and expenses are recorded when you pay them.
✅ Pros: Simple, easy to follow, aligns with your bank balance.
❌ Cons: Doesn’t reflect money owed to you (debtors) or unpaid bills (creditors).
Best suited for: Sole traders or micro-businesses with straightforward transactions.
Accrual Accounting
Under the accrual basis, income is recorded when it is earned (e.g., when you issue an invoice), and expenses when they are incurred (e.g., when you receive a bill), regardless of payment timing.
✅ Pros: More accurate picture of business performance, better for planning and growth, aligns revenues with expenses.
❌ Cons: More complex, requires more bookkeeping discipline, can show a “paper profit” when cash flow is tight.
Best suited for: Growing businesses, businesses with stock or trade credit, or anyone needing external finance.
GST Accounting Basis vs Income Tax Method
Here’s where many people get tripped up:
your GST basis and your income-tax accounting method are not the same thing, nor do they have to match.
GST Basis
- Governed by the GST Act.
- Eligible businesses (usually turnover under $10m) can elect to report GST on either a cash or non-cash (accruals) basis.
- Choice affects when you attribute GST on sales and purchases, not how you prepare financial statements or lodge income tax.
- Governed by s 6-5 of the Income Tax Assessment Act 1997 (ITAA 1997).
- Timing of income recognition depends on whether you use the receipts (cash) method or the earnings (accruals) method.
- The ATO ruling TR 98/1 explains:
- Cash method → income is derived when received.
- Accrual (earnings) method → income is derived when a recoverable debt arises.
- For trading/manufacturing businesses, accrual is usually required (TR 98/1, para 19).
- Under AASB 101 Presentation of Financial Statements, companies must prepare financial statements on an accrual basis (paras 27–28).
- This is separate again from both GST and income tax timing.
Why the Distinction Matters👉 A business can lodge GST on a cash basis while still preparing accounts and paying income tax on an accruals basis.
👉 The law does not require the two to align. They are separate elections with different purposes:
- GST → determines when GST is reported and paid.
- Income Tax → determines when income is assessable under tax law.
- Financial Reporting → must always be on accrual under accounting standards.
Final Thoughts
If you’ve ever been told that “if you’re cash for GST, you must also be cash for company tax” — that is incorrect.
- GST basis is about cash flow timing of GST liabilities.
- Income tax accounting method follows the ITAA 1997 and TR 98/1 derivation rules.
- Financial statements must always be accrual-based under AASB 101.
So while the terms sound similar, they are legally and practically distinct. Understanding the difference will not only help you stay compliant but also give you a clearer picture of your business’s true financial position.
RSS Feed