End of Financial Year as a Small Business Owner in Australia – What NOT to Do (2026 Edition)
Disclaimer: This blog post is intended for informational purposes only and does not constitute legal, financial, visa, or medical advice. Please consult with a qualified professional for advice tailored to your specific situation.
The end of financial year (EOFY) is a critical time for Australian small business owners, but it’s not just about what you should do. Knowing what not to do can save you from costly mistakes, compliance headaches, and unnecessary stress. This guide, written especially for female small business owners, will help you avoid the most common EOFY pitfalls in 2026.
Introduction: EOFY – The Other Side of the Coin
EOFY in Australia is often painted as a checklist of “must-dos”: lodge your BAS, claim your deductions, reconcile your accounts, and so on. But as the owner of an online business management company dedicated to empowering female entrepreneurs, I’ve seen firsthand that the real traps lie in what you don’t do—or worse, what you shouldn’t do.
This year, let’s flip the script. Instead of another “how-to” guide, I’m sharing the what-not-to-dos—the mistakes, oversights, and bad habits that can derail your business at EOFY. Whether you’re a seasoned businesswoman or just starting out, these are the pitfalls to dodge for a smoother, more successful financial year-end.
Table of Contents
Mixing Personal and Business Expenses
Leaving Bookkeeping to the Last Minute
Forgetting to Reconcile Accounts
Missing Superannuation Deadlines
Neglecting Receipts and Record-Keeping
Panic Buying for Deductions
Ignoring Contractor vs. Employee Status
Overlooking Unpaid Invoices
Not Reviewing Your Business Structure
Failing to Communicate with Your Accountant Early
Overlooking GST and BAS Obligations
Forgetting to Back Up Financial Data
Treating EOFY as a One-Day Event
Underestimating the Complexity of EOFY
Not Finalising Payroll Data (STP)
Ignoring Cash Flow Management
Failing to Claim All Eligible Deductions
Relying on Inaccurate Invoicing
Neglecting Financial Planning and Budgeting
Forgetting Your Own Super Contributions
Overlooking the New Payday Super Regime
EOFY 2026: Key Dates and Obligations
Conclusion: EOFY Success Is About What You Don’t Do
1. Mixing Personal and Business Expenses
What NOT to do:
Don’t blur the lines between your personal and business finances. Using your business account for personal shopping or vice versa is a recipe for confusion, missed deductions, and ATO scrutiny.
Why it matters:
Makes bookkeeping a nightmare
Increases risk of errors and audits
Can result in lost tax deductions
Empowering Tip:
Open separate bank accounts and use dedicated business cards. Keep your business finances as independent as you are!
2. Leaving Bookkeeping to the Last Minute
What NOT to do:
Don’t wait until June 29th to start sorting your receipts and updating your books. Procrastination leads to rushed, error-prone work and unnecessary stress.
Why it matters:
Increases likelihood of mistakes
Makes it harder to spot discrepancies
Can result in missed deadlines
Empowering Tip:
Schedule regular “money dates” with your books—monthly or even weekly. Your future self will thank you!
3. Forgetting to Reconcile Accounts
What NOT to do:
Don’t skip reconciling your bank accounts, credit cards, and payment platforms. Unreconciled accounts mean your financial reports could be way off.
Why it matters:
Leads to inaccurate tax returns
Can trigger ATO penalties
Makes it hard to understand your true financial position
Empowering Tip:
Set up automatic reminders to reconcile accounts at least monthly.
4. Missing Superannuation Deadlines
What NOT to do:
Don’t leave super payments until the last minute. If your employees’ super isn’t paid and cleared by 30 June, you can’t claim the deduction for this financial year.
Why it matters:
Missed deductions = higher tax bill
Risk of ATO penalties and Super Guarantee Charge
EOFY 2026 Super Dates:
Q4 Super due: 28 July 2026
From 1 July 2026: Payday Super begins—super must be paid at the same time as wages!
5. Neglecting Receipts and Record-Keeping
What NOT to do:
Don’t toss receipts in a shoebox or rely on memory. Failing to keep proper records is the #1 reason for lost deductions and compliance issues.
Why it matters:
You must keep records for at least 5 years
No receipt = no deduction if audited
Empowering Tip:
Use a digital app to snap and store receipts as you go.
6. Panic Buying for Deductions
What NOT to do:
Don’t make last-minute, unnecessary purchases just to “get a deduction.” Panic buying can hurt your cash flow and may not even be deductible if not genuinely for business.
Why it matters:
Can leave you short on cash
May not be eligible for instant asset write-off ($20,000 per asset in 2025–26)
Empowering Tip:
Only buy what your business truly needs and can afford.
7. Ignoring Contractor vs. Employee Status
What NOT to do:
Don’t assume all your workers are contractors. Misclassifying employees as contractors can lead to unpaid super, payroll tax, and hefty penalties.
Why it matters:
ATO is cracking down on misclassification
You may owe back-payments and fines
Empowering Tip:
Review all worker arrangements annually with your accountant.
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8. Overlooking Unpaid Invoices
What NOT to do:
Don’t ignore unpaid invoices or let debtors slide. Uncollected income distorts your financial position and can impact your cash flow.
Why it matters:
Affects your profit and loss statement
Can lead to cash flow crunches
Empowering Tip:
Follow up on overdue invoices before EOFY and write off bad debts where appropriate.
9. Not Reviewing Your Business Structure
What NOT to do:
Don’t assume your current business structure is still the best fit. Laws and your business circumstances change.
Why it matters:
You might miss out on tax efficiencies or asset protection
The wrong structure can cost you more in tax or compliance
Empowering Tip:
Review your structure with a professional at least annually.
10. Failing to Communicate with Your Accountant Early
What NOT to do:
Don’t leave it until June 29th to call your accountant. Last-minute communication means missed advice and rushed work.
Why it matters:
Missed opportunities for tax planning
Risk of errors and overlooked deductions
Empowering Tip:
Book a pre-EOFY meeting with your accountant every year.
11. Overlooking GST and BAS Obligations
What NOT to do:
Don’t forget to reconcile your GST and BAS records each quarter. Inaccurate BAS lodgements can lead to ATO penalties.
Why it matters:
BAS Q4 (April–June 2026) due: 28 July 2026
Missed or incorrect BAS = fines and interest
Empowering Tip:
Use accounting software to track GST and set reminders for BAS lodgement.
12. Forgetting to Back Up Financial Data
What NOT to do:
Don’t rely on a single copy of your financial data. Data loss can be catastrophic, especially at EOFY.
Why it matters:
Lost data = lost records, lost deductions, compliance risk
Empowering Tip:
Back up your data to the cloud and an external drive regularly.
13. Treating EOFY as a One-Day Event
What NOT to do:
Don’t think EOFY is just about June 30th. It’s a process, not a single day.
Why it matters:
Last-minute rush leads to mistakes
Ongoing preparation reduces stress
Empowering Tip:
Treat EOFY as a season, not a day—plan ahead!
14. Underestimating the Complexity of EOFY
What NOT to do:
Don’t assume EOFY is just about taxes and paperwork. It’s about compliance, planning, and business health.
Why it matters:
Underestimating complexity leads to missed deadlines and errors
Empowering Tip:
Educate yourself and seek help when needed.
15. Not Finalising Payroll Data (STP)
What NOT to do:
Don’t forget to finalise your Single Touch Payroll (STP) data by the deadline. Inaccurate or late STP finalisation can cause ATO issues.
Why it matters:
STP finalisation due: 14 July 2026
Employees rely on this for their tax returns
Empowering Tip:
Check your payroll software for EOFY STP finalisation features.
16. Ignoring Cash Flow Management
What NOT to do:
Don’t focus only on profit and loss. Ignoring cash flow can leave you unable to pay bills, even if you’re “profitable” on paper.
Why it matters:
Cash flow is the lifeblood of your business
Empowering Tip:
Monitor cash flow monthly and forecast ahead.
17. Failing to Claim All Eligible Deductions
What NOT to do:
Don’t leave money on the table by forgetting to claim legitimate business expenses.
Why it matters:
Missed deductions = higher tax bill
Empowering Tip:
Review eligible deductions with your accountant before EOFY.
18. Relying on Inaccurate Invoicing
What NOT to do:
Don’t let invoicing errors slip through. Inaccurate or incomplete invoicing complicates EOFY reporting.
Why it matters:
Leads to financial discrepancies
Can cause GST and income reporting errors
Empowering Tip:
Use invoicing software and double-check all invoices.
19. Neglecting Financial Planning and Budgeting
What NOT to do:
Don’t skip financial planning and budgeting. Without a plan, you’re flying blind.
Why it matters:
Missed targets and poor decisions can result
Empowering Tip:
Set aside time each quarter for strategic planning.
20. Forgetting Your Own Super Contributions
What NOT to do:
Don’t neglect your own superannuation as a business owner. Many women put themselves last, but your future matters.
Why it matters:
Missed tax benefits and retirement savings
Empowering Tip:
Set up regular super contributions for yourself.
21. Overlooking the New Payday Super Regime
What NOT to do:
Don’t ignore the new Payday Super rules starting 1 July 2026. From this date, you must pay super at the same time as wages—not quarterly.
Why it matters:
Non-compliance = penalties
SBSCH (Small Business Super Clearing House) closes 1 July 2026—arrange new payment methods
Empowering Tip:
Update your payroll systems now to be ready for Payday Super.
22. EOFY 2026: Key Dates and Obligations
Key Dates for EOFY 2026
1) EOFY (end of financial year): 30 June 2026
2) Individual/partnership/trust tax return: 31 October 2026
3) Company tax return (no overdue): 15 January 2027
4) BAS Q4 (Apr–Jun 2026): 28 July 2026
5) SG Q4 (Apr–Jun 2026): 28 July 2026
6) STP finalisation: 14 July 2026
7) Instant asset write-off threshold: $20,000 per asset
8) Small business tax rate: 25%
9) SBSCH closure: 1 July 2026
10) Payday Super regime begins: 1 July 2026
Don’t miss these deadlines! Set calendar reminders and communicate with your accountant to stay on track.
23. Conclusion: EOFY Success Is About What You Don’t Do
Key Finding:
Avoiding common EOFY mistakes is just as important as ticking off your to-do list. By steering clear of these “what-not-to-dos,” you’ll protect your business, maximise your deductions, and set yourself up for a successful new financial year.
EOFY doesn’t have to be a time of dread or chaos. With the right mindset and preparation, you can turn it into an opportunity for growth, clarity, and empowerment. Remember, as a female business owner, you bring unique strengths to the table—organisation, resilience, and a community spirit. Use these to your advantage, and don’t be afraid to ask for help.
Here’s to a smooth, stress-free EOFY 2026—by knowing exactly what not to do!
Summary Box: EOFY What-Not-to-Do Checklist
❌ Mix personal and business expenses
❌ Leave bookkeeping to the last minute
❌ Forget to reconcile accounts
❌ Miss superannuation deadlines
❌ Neglect receipts and records
❌ Panic buy for deductions
❌ Ignore contractor/employee status
❌ Overlook unpaid invoices
❌ Skip business structure review
❌ Delay talking to your accountant
❌ Overlook GST/BAS obligations
❌ Forget to back up data
❌ Treat EOFY as a one-day event
❌ Underestimate EOFY complexity
❌ Miss STP payroll finalisation
❌ Ignore cash flow
❌ Miss eligible deductions
❌ Rely on inaccurate invoicing
❌ Neglect planning and budgeting
❌ Forget your own super
❌ Overlook Payday Super changes
Final Empowerment
You’ve got this! EOFY is your chance to reflect, reset, and rise. By knowing what not to do, you’re already ahead of the game. If you need support, reach out to a trusted advisor or join a community of like-minded women in business. Here’s to your continued success in 2026 and beyond!
There are many ways of working with professionals. Start small, but keep it regularly and don’t wait until something happens. Strategic planning and periodic reviews are a great start to implement those strategies.
Perfectly Organised NT can assist with a financial review and strategic business planning & management. Find out more!
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