How Much Tax Should a Small Business Put Aside in Australia | Kantor Advisory Group
- stevekantor25
- Jan 20
- 2 min read
If you run a small business in Australia and are unsure how much tax you should be putting aside, you are not alone. This is one of the most common issues we see with business owners, and it is also one of the most damaging when ignored.

Most small businesses should be setting aside 25 to 35 percent of profit for tax.
The exact amount depends on your business structure, income level, and whether you are registered for GST. Below is how to work it out properly.
Why small businesses get caught out at tax time
Many business owners focus on revenue instead of profit. Money in the bank feels available to spend, but a large portion of it belongs to the ATO.
The most common mistakes we see are:
Spending profit before tax is calculated
Forgetting GST is not business income
Not planning for PAYG and super
Leaving tax planning until EOFY
Tax problems rarely happen overnight. They build month by month.
How much tax to put aside by business type
Sole traders Sole traders should generally set aside 25 to 30 percent of net profit.This covers income tax and the Medicare levy.
Companies Most small companies should set aside 25 percent of net profit.This is the current small business company tax rate.
Trusts Trusts usually require 25 to 35 percent, depending on how income is distributed and the personal tax rates of beneficiaries.
If your business is registered for GST, you should also be holding 10 percent of taxable income separately. GST is never your money.
A simple monthly tax system that works
Every month, you should be doing three things:
Calculate your true profit, not revenue
Transfer 25 to 35 percent of that profit into a separate tax account
Transfer GST collected into the same or a dedicated holding account
If you cannot afford to do this, your pricing or expense structure needs attention.
Why guessing your tax bill is risky
Underestimating tax leads to:
Cash flow stress
ATO payment plans
Poor financial decisions
Slowed business growth
Good tax planning removes uncertainty and gives you control.
How Kantor Advisory Group helps business owners stay ahead
At Kantor Advisory Group, we help business owners understand their numbers before tax becomes a problem. Our focus is proactive planning, not last minute fixes.
We support clients with:
Ongoing tax forecasting
Cash flow and profit visibility
Structure advice to legally reduce tax
Clear guidance on what money is safe to spend
When tax is planned properly, growth becomes simpler.
Final takeaway
If you remember one thing, remember this. If you are running a small business in Australia and not setting aside at least 25 percent of profit, you are underprepared.
Tax should never come as a surprise. If you want clarity on exactly how much your business should be setting aside, speak with an accountant who plans ahead.
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