BAS Due Dates Australia 2026: What Business Owners Need To Know
- 1 day ago
- 4 min read
Missing a BAS deadline is usually not caused by one big mistake.
It often happens because business owners are busy running the business and financial tasks get pushed further down the list:
Priority List
Customers need attention.
Employees need support.
Family needs your time
Maybe you should eat
Probably should sleep sometime every 24hrs…
Pay some suppliers
Business operating fires to put out
BAS? WTF? How much is it?
Before you know it, a BAS deadline is here and you are searching for missing information, checking transactions, and trying to make sure everything is doesn’t put you in a tax hole.
The good news?
BAS preparation does not need to become a last-minute task. It can all be automated and done for you (probably cheaper than inhouse).
Understanding your deadlines and keeping your records organised throughout the year can make the process smoother, more accurate, and less stressful.
So let's talk some basics. (Skip this part if you already know)
What Is A BAS?
A Business Activity Statement (BAS) is a report businesses submit to the Australian
Taxation Office (ATO) to report certain tax obligations.
Depending on your business circumstances, your BAS may include:
Goods and Services Tax (GST)
Pay As You Go (PAYG) withholding
PAYG instalments
Other tax obligations
The frequency of BAS lodgement depends on your reporting cycle.
Some businesses lodge:
Monthly
Quarterly
Annually
Understanding which reporting cycle applies to your business helps ensure you are prepared before deadlines arrive.
You don't need to be an expert on the above. Book in a call with us. It will cost you nothing, and we can help you with some shortcut advice.
More basics below, but pay attention to the due dates that your accountant can get.
(That means extra time to pay).
BAS Due Dates For 2026
BAS deadlines depend on your reporting period.
Quarterly BAS Lodgement Dates with your BAS agent
Most small businesses lodge BAS quarterly.
Reporting Period | Due Date | Accountant Due Date | Your accountant gets you extra time to pay: |
January – March 2026 | April 28 | May 25 | 27 extra days |
April – June 2026 | July 28 | August 25 | 28 extra days |
July – September 2026 | October 28 | November 25 | 28 extra days |
October – December 2026 | February 28 | February 28 | We all get the same extra 28 days. |
The one big mistake that everyone makes:
BAS Preparation Should Not Start At The Deadline
A common mistake is treating BAS preparation as a once-off task.
But easy BAS reporting depends on the quality of your records throughout the period.
Problems often appear when businesses have:
Missing receipts
Uncategorised expenses
Incorrect transactions
Unreconciled accounts
Delayed bookkeeping
These issues can create unnecessary pressure when deadlines approach.
Is this happening to you? Do you want to have a quick chat with someone about how to fix it for yourself? Book in a call with us or send us an email.
5 Ways To Make BAS Time Easier
1. Keep Your Bookkeeping Updated Regularly
Have you though about automating this?
AI is here, you don’t have to do it yourself
Want some free help? Book in a call with us or send us an email
Or you can do it this way:
Waiting months to update records creates more work later.
Regular bookkeeping helps ensure:
Transactions are recorded correctly
Expenses are captured
Reports are more accurate
The goal is not just preparing BAS.
The goal is maintaining a clear picture of your business. Maybe you need a bookkeeper……
2. Reconcile Your Accounts
Reconciliation???? Boring right?
You really need to get your accounts automated! It could be time to have that chat
…. free help is right here: Book in a call with us or send us an email
Or you can do it this way…..
Bank reconciliation helps confirm that your records match your actual transactions.
Regular reconciliation can help identify:
Missing transactions
Duplicate entries
Incorrect coding
Outstanding issues
Small checks throughout the year can prevent bigger problems later.
3. Keep Business And Personal Expenses Separate
Mixing personal and business expenses can make bookkeeping more complicated.
Clear separation helps improve:
Accuracy
Reporting
Financial visibility
It also makes reviewing your numbers easier.
4. Review Your Numbers Before Lodgement
BAS preparation should not only be about submitting information.
It is also an opportunity to understand your business.
Before lodgement, consider:
Are sales increasing?
Are expenses changing?
Is cash flow improving?
Are there any unusual movements?
Your BAS can provide useful business insights when reviewed properly.
5. Create A Consistent Process
The businesses that manage BAS deadlines well usually have a process.
This may include:
Regular bookkeeping updates
Document management
Monthly reviews
Clear responsibilities
Good systems reduce stress because important tasks are not left until the last minute.
What Happens If You Miss A BAS Deadline?
Missing deadlines can create additional pressure for businesses.
Depending on the circumstances, consequences may include:
Late lodgement penalties
Interest charges
Additional follow-up from the ATO
More importantly, delayed BAS reporting can reduce visibility into your business finances.
When financial information is delayed, decision-making becomes harder.
BAS Is Not Just A Compliance Requirement
While BAS is a required business obligation, it can also be a valuable checkpoint.
Your BAS information can help you understand:
Revenue movement
GST position
Business activity
Financial trends
When combined with accurate bookkeeping, compliance tasks can become opportunities to better understand your business.
Better Bookkeeping Creates Better Visibility
BAS deadlines are easier to manage when your financial information is organised throughout the year.
Good bookkeeping helps businesses:
✓ Stay prepared
✓ Reduce last-minute pressure
✓ Improve reporting accuracy
✓ Understand financial performance
✓ Make better decisions
Because the goal is not simply getting BAS completed.
The goal is having confidence in the numbers behind your business.
Final Thought
BAS deadlines are easier when they are part of a process, not a last-minute task.
By keeping records updated, reviewing financial information regularly, and maintaining better systems, businesses can approach BAS time with more confidence.
Your numbers should not only help you meet obligations.
They should help you understand your business.
Not sure whether your bookkeeping process is keeping up with your business?
Book a free call with us to review your current processes and identify opportunities to improve accuracy, efficiency, and financial visibility.
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