Why BAS Planning Matters: Cashflow Problems Often Start Before the Due Date

Many business owners only start thinking about their BAS when the due date is approaching.

By then, the damage may already be done.

The issue is not always that the business is performing badly. In fact, many cashflow problems appear in businesses that are growing, profitable, and active. The real problem is often timing.

A business can have strong sales, improving margins, new customers, and a healthy-looking bank balance, but still struggle when BAS, wages, superannuation, rent, supplier payments, loan repayments, and other obligations all fall due around the same time.

This is why BAS planning should not be treated as an afterthought. It should be part of the business cashflow process.

Profit Does Not Always Mean Available Cash

One of the biggest misunderstandings in business is assuming that profit equals cash.

Profit is an accounting result. Cashflow is the actual movement of money in and out of the business.

For example, a business may have:

• issued invoices that have not yet been paid;

• purchased stock that has not yet been sold;

• collected GST that will later need to be paid to the ATO;

• withheld PAYG from wages that must be remitted;

• committed to wages, superannuation and supplier payments;

• used cash for equipment, vehicles, or expansion.

On paper, the business may look healthy. But if cash has been absorbed into inventory, unpaid customer invoices, tax obligations or operating costs, the business may still feel pressure.

This is where BAS forecasting becomes valuable.

BAS Cash Is Not Free Cash

When a business collects GST from customers, that money does not fully belong to the business.

It may sit in the bank account for a period of time, which can create the illusion that the business has more available cash than it really does. The same issue can apply to PAYG withholding from employee wages.

If a business spends this cash before the BAS is prepared, the ATO liability can become a shock.

This is a common issue, especially for businesses that are growing quickly. Higher sales can mean higher GST collected. More staff can mean higher PAYG withholding and superannuation obligations. More activity can mean more pressure, even when the business appears successful.

The key is to identify these obligations early and set aside cash progressively.

The Difference Between Reactive and Planned Businesses

In practice, I often see two types of business behaviour.

The first is reactive. These business owners make decisions first and check the numbers later. They may buy equipment, commit to a vehicle, take on a new lease, hire staff, or increase spending without first understanding the tax and cashflow impact.

Then, when the BAS is due, they ask:

“Why is the BAS so high?”

“Why is cash so tight?”

“Can we delay the payment?”

“Where did the money go?”

The second group plans ahead. These business owners speak to their accountant before making major financial decisions. They want to understand the numbers before committing. They ask:

“What will this do to cashflow?”

“How much GST should we set aside?”

“What will the next BAS look like?”

“Can the business afford this purchase now?”

“Should we time this differently?”

That difference in planning can have a major impact on financial control.

Why Timing Can Create Cashflow Stress

A BAS liability does not exist in isolation. It usually arrives alongside other business commitments.

For many businesses, the pressure comes when several obligations fall close together, such as:

• BAS payment;

• wages;

• PAYG withholding;

• superannuation;

• supplier invoices;

• rent;

• loan repayments;

• insurance;

• equipment finance;

• director drawings or wages.

Individually, each payment might be manageable. Together, they can create a cashflow squeeze.

This is why timing matters.

A business may not have a profitability problem. It may have a timing problem.

Forecasting helps identify these pressure points before they become urgent.

How a BAS Forecast Helps

A BAS forecast does not need to be overly complicated. Even a simple forward-looking estimate can help a business owner understand what is coming.

A useful BAS and cashflow forecast may include:

• expected GST collected on sales;

• GST credits on business purchases;

• estimated net GST payable;

• PAYG withholding;

• upcoming superannuation payments;

• wages and payroll timing;

• supplier payment commitments;

• rent and loan repayments;

• expected customer receipts;

• cash required to be set aside each week.

The aim is not perfection. The aim is visibility.

When a business owner can see the likely BAS position early, they can make better decisions before cash becomes tight.

Planning Before Major Purchases

Major purchases are another area where timing is critical.

A business owner may decide to buy a vehicle, equipment, tools, stock, software, or other assets because the business appears to have cash available. However, that cash may already be needed for BAS, payroll, superannuation, or supplier commitments.

This does not mean the purchase is wrong. It means the timing needs to be considered.

Before making a major purchase, it is worth asking:

• Will this reduce cash needed for the next BAS?

• Is GST claimable on the purchase?

• Will the GST credit assist in the next BAS period?

• Is the purchase being financed or paid upfront?

• Will the asset generate revenue quickly?

• Are there upcoming ATO, payroll or supplier payments?

• Is there enough buffer after the purchase?

Seeing the accountant before making the decision can help avoid unnecessary pressure.

BAS Planning Is a Cashflow Tool

Many people see BAS as a compliance task.

It is more than that.

Yes, the BAS must be lodged correctly and on time. But the information behind the BAS also gives insight into how the business is operating.

It can show whether:

• sales are increasing;

• GST obligations are rising;

• expenses are increasing;

• payroll costs are growing;

• cash is being absorbed into operating commitments;

• the business is collecting enough from customers;

• the business needs a better tax reserve process.

Used properly, BAS planning becomes a cashflow management tool, not just a lodgement requirement.

A Practical Approach for Business Owners

A simple system can make a major difference.

Business owners should consider:

1. Reviewing GST and PAYG regularly

   
   

   Do not wait until the BAS is due. Review the likely position weekly or monthly.

2. Setting aside tax cash progressively

   
   

   Treat GST collected and PAYG withheld as money held temporarily, not available spending cash.

3. Using a tax calendar

   
   

   Know when BAS, superannuation, payroll and income tax obligations fall due.

4. Forecasting before major decisions

   
   

   Before making major purchases, hiring staff, or expanding, check the cashflow impact first.

5. Keeping bookkeeping up to date

   
   

   BAS forecasting is only useful if the underlying records are accurate.

6. Speaking to the accountant early

   
   

   The best time to get advice is before the decision, not after the cash has already been spent.

Final Thought

Cashflow problems often start long before the BAS due date.

They start when tax cash is treated as available cash. They start when major purchases are made without forecasting. They start when business owners look only at profit and not timing.

A profitable business can still struggle if cash is not planned properly.

The businesses that manage this well usually do not wait for the BAS to reveal the problem. They forecast early, set cash aside, and make decisions with the full picture in mind.

Good accounting should not only explain what happened last quarter.

It should help business owners prepare for what is coming next.

Plan ahead. Forecast early. Protect your cashflow.