Most company directors assume their accountant handles everything — and most of the time, that’s true. But when your company tax return is late, wrong, or triggers an ATO audit, the consequences land squarely on you. Each year, thousands of Australian companies pay unnecessary penalties simply because they didn’t understand what a company tax return actually requires. Here’s what you need to know before your next lodgement deadline.
What Is a Company Tax Return and Who Must Lodge One?
A company tax return (also called an income tax return for companies) is an annual declaration lodged with the Australian Taxation Office. Every company registered with ASIC in Australia must lodge one, regardless of whether the company made a profit, a loss, or no income at all.
This includes Pty Ltd companies, public companies, and foreign companies operating in Australia. Even dormant companies — those that haven’t traded during the financial year — are generally required to lodge unless they’ve been formally deregistered with ASIC.
The return reports the company’s taxable income, calculates how much tax is owed, and accounts for any PAYG instalments already paid throughout the year. Get it wrong and you’re not just looking at a penalty — you’re potentially inviting a full ATO review of your business finances.
What Must Be Included in a Company Tax Return?
The ATO requires companies to report far more than just revenue and expenses. Your return must include:
- Total income from all sources (sales, investments, capital gains)
- All allowable deductions, including depreciation, wages, rent, and business expenses
- Franking credits and dividend details if applicable
- Related party transactions, especially for companies with connected entities
- Small business entity concessions if your aggregated turnover is under $10 million
- R&D tax incentive claims if your company conducted eligible research and development
One area where companies consistently make errors is the treatment of loans to directors or shareholders. Under Division 7A of the Income Tax Assessment Act, these loans can be deemed unfranked dividends if not managed correctly — creating an unexpected tax bill.
Company Tax Return Deadlines in Australia
The standard lodgement deadline for a company tax return is 28 February of the year following the end of the income year (30 June). So for the 2023–24 financial year, the deadline is 28 February 2025.
However, if you lodge through a registered tax agent, the deadline is typically extended. Tax agents operate under the ATO’s tax agent lodgement program, which provides concessional dates — often as late as 15 May — for their clients. This is one of the most practical reasons to engage a registered tax agent: you automatically get more time.
Miss the deadline without a registered agent and you’ll face an automatic Failure to Lodge (FTL) penalty. For large companies, this is $313 per 28-day period the return is overdue, up to a maximum of five periods. For small companies the amounts are lower, but still avoidable.
Common Deductions Companies Miss
Working with hundreds of Melbourne businesses, there are deductions that come up repeatedly as either missed or misclaimed:
Motor vehicle expenses: If your company owns vehicles used for business purposes, you can claim depreciation, running costs, and interest on finance — but only the business-use portion. Log books matter here.
Home office costs for directors: If you operate partly from home, a proportional claim on occupancy costs may be available, subject to ATO requirements.
Superannuation contributions: Employer super contributions are deductible — but only when actually paid, not just accrued.
Pre-paid expenses: Under the prepayment rules, small business entities can claim an immediate deduction for prepaid expenses covering a period of 12 months or less.
Asset write-offs: Eligible small businesses can immediately deduct the full cost of depreciating assets under the instant asset write-off provisions. Thresholds and eligibility change year to year — check current ATO guidance.
Frequently Asked Questions
Do I need to lodge a company tax return if my company made no money?
Yes. In Australia, the lodgement obligation is tied to company registration, not profitability. Even a dormant company must lodge unless formally deregistered with ASIC. Failure to lodge attracts ATO penalties.
Can I lodge a company tax return myself without a tax agent?
Technically yes — you can lodge through the ATO’s business portal. In practice, company tax returns are complex. A registered tax agent not only extends your deadline but helps identify deductions and manage your ATO correspondence if questions arise.
What is the company tax rate in Australia?
For the 2023–24 financial year, the base company tax rate is 30%. Small business entities with aggregated turnover under $50 million pay a reduced rate of 25% — but only on income from eligible business activities, not passive income like rent or investments above a threshold.
What happens if I lodge my company tax return late?
The ATO issues a Failure to Lodge (FTL) penalty that accrues in 28-day blocks. For small companies, this is currently $313 per block up to five blocks ($1,565 maximum). Penalties can be remitted in genuine hardship cases, but you need to request this formally.
Get Your Company Tax Return Right This Year
A company tax return is not a form to rush. The ATO’s data-matching capability has grown significantly — they receive income data from banks, state revenue offices, share registries, and more. Discrepancies get flagged.
At RPS Accountants in Epping, we handle company tax returns for businesses across Melbourne’s northern suburbs. We know the deductions that apply to your industry, we manage your lodgement timeline, and we give you straight answers — not jargon.
If your company’s tax return is due or you want a second opinion on a past lodgement, reach out to our team for a consultation.
