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Small business tax changes are reshaping how business owners plan, report, and manage their finances.
As we move into the 2025–26 financial year, Australian small business owners are facing a wave of tax and compliance changes that go well beyond simple rate adjustments. From superannuation increases to changes in deductibility rules and tighter payroll obligations, the message is clear: “set and forget” is no longer a safe approach to tax and bookkeeping.
The good news? With the right planning, systems, and support, these changes don’t need to come as a shock. Here’s what you should be aware of—and what you can do now to stay ahead.
Small business tax changes you can’t afford to ignore
- Superannuation is now 12%—and timing matters more than ever
The Superannuation Guarantee rate has reached 12%, marking the final step in the long‑planned increases. While many payroll systems update rates automatically, the timing of payments is where businesses often slip up.
Super is calculated based on when wages are paid, not when work is performed. If your payroll and bookkeeping aren’t aligned, this can easily lead to underpayments, penalties, or compliance issues.
Review your payroll settings now and confirm that super is calculated correctly on payment dates. A payroll review through iKeep can help ensure everything is configured correctly and compliant.
- ATO interest is no longer tax‑deductible
From 1 July 2025, interest charged by the ATO on late payments or outstanding tax debts is no longer deductible. This makes late lodgments and unpaid tax significantly more expensive than before. For many small businesses, tax debt creeps up due to poor cash flow visibility—not intentional avoidance.
Accurate, up‑to‑date bookkeeping allows you to forecast tax liabilities early, plan payments, or arrange payment plans before interest becomes an issue. This is where proactive bookkeeping adds real financial value.
- Instant assets write‑offs are tighter
The instant asset write‑off threshold has been significantly reduced unless further extensions are passed. That means timing purchases without proper advice could result in missed deductions or cash flow strain.
Before making major purchases, check how they’ll be treated for tax purposes. Regular reporting and communication with your bookkeeper ensure purchases are made strategically—not reactively.
- PAYG and payroll obligations are under closer scrutiny
The ATO continues to increase its focus on PAYG withholding, payroll accuracy, and reporting via Single Touch Payroll (STP). Errors that once slipped through are now far more visible.
Incorrect PAYG calculations, late lodgments, or inconsistent payroll reporting can trigger audits or compliance reviews.
Ensure your payroll data flows cleanly into your bookkeeping and reporting systems. iKeep’s integrated bookkeeping and payroll services help reduce errors and ensure your obligations are met on time.
- “Set and forget” bookkeeping no longer works
One of the biggest risks for small businesses isn’t a single tax change—it is relying on outdated processes. Tax, payroll and super rules are changing more frequently, and manual or infrequent bookkeeping simply can’t keep up.
Without real‑time visibility, business owners are left reacting to surprises instead of planning with confidence.
Move to consistent, proactive bookkeeping with regular reporting. This allows you to:
- Understand your tax position year‑round
- Manage cash flow with confidence
- Make informed decisions before deadlines hit
How iKeep helps you stay ahead
At iKeep, we don’t just record transactions—we help small businesses stay compliant, informed, and in control.
Our services support you by:
- Keeping your bookkeeping accurate and up to date
- Managing payroll and super compliance
- Ensuring BAS and PAYG obligations are met on time
- Providing clear reporting to support tax planning
With the right systems and support in place, tax changes become manageable—not stressful.
Final takeaway
The small business tax changes for 2025–26 reinforce one key message: staying compliant now requires planning, accuracy, and visibility. Business owners who stay proactive will avoid costly surprises and gain better control over their finances.
If you’re unsure how these changes affect your business, now is the time to review your bookkeeping and payroll setup.
Talk to iKeep today about setting your business up for a smoother, more confident 2025–26 financial year.
