For small business owners and their accountants

Profitable — and still running out of cash?

BusinessSolvency checks one thing every BAS quarter: will the cash coming in pay every bill going out, including tax, super, loans and your own pay?

“Nobody ever shows you how much revenue you need to generate each period to pay every bill.”

The one test

Profit can look healthy while cash quietly runs short.

The Sustainable Cashflow Formula asks the question that decides whether a business survives:

All Cash IN ≥ All Cash OUT

including tax, super, loan repayments, the owner’s drawings and a reserve for the unexpected.

It is a harder, more honest test than profit, and every figure it needs is already in your accounting software. See how it is measured →

How it works

One job. One rhythm. One rule.

The job

“Each quarter, tell me whether my business can keep paying what it owes, and what to do if it can’t.”

The rhythm

Every BAS quarter

Using the figures your accounting software already holds. About twenty minutes: compare the quarter with the plan, see which way the trend is moving, and take one action.

The rule

All Cash IN must cover all Cash OUT

The Sustainable Cashflow Formula, applied the same way to sole traders, partnerships, companies, and clubs and associations.

See the quarterly review, step by step →
The circle most small businesses are caught in

It happens the same way, again and again.

1 · Set upA sole trader or partnership starts, often with an accountant’s help.
2 · CreditLenders and suppliers extend credit. Trading grows.
3 · Nobody watchingProfit looks fine. Nobody checks whether cash is keeping up with every bill.
4 · Cash runs outTax, super or a loan payment can’t be met, and there’s no money left for help.
5 · ClosureThe business winds down, and any unpaid debt becomes the owner’s.
BusinessSolvency breaks the circle early — at the BAS quarter, while the fix is still small and affordable: a price change, a collections call, a smaller purchase, a lower drawing. Not at the end, when it’s expensive and often too late.
Why the founder built it
“I didn’t set out to build a compliance platform. I set out to answer one question — what would have needed to be true for these businesses to survive?”
— Stephen Fairbairn · Founder, BusinessSolvency
The BusinessSolvency journey

Stephen Fairbairn isn’t an accountant, a lawyer, or a career governance professional. He’s an independent researcher who experienced business closure firsthand — multiple times — before spending ten years developing the framework that became the Sustainable Cashflow Formula, and ultimately BusinessSolvency, a platform for every Australian SME — sole traders, partnerships, trusts and companies.

Your role

What is your role in keeping a business solvent?

Whatever your role, the routine is the same: one cash check every BAS quarter, and one action while the fix is still small.

Owner or partner

Before your next BAS, check that cash will cover next quarter’s tax, super and loan repayments.

See the quarterly check, step by step →
Company director

Do the same check, and record it in writing. A dated record is a director’s best protection.

Read Chapter 2A →
Club committee or director

Put a three-year cash forecast on the agenda before your next AGM, and bring your accountant in from the start.

Read Chapter 2B →Then Chapter 2D →
Accountant

Choose one client this BAS quarter and run their Solvency Forecast with them. It turns the BAS you already prepare into advice clients value.

See your reading path →Serving a club? Chapter 2D →

Why this quarter? Three cash cushions that hide a problem are disappearing by 30 June 2027. See why now ↓

Why now

Three cash cushions are disappearing by 30 June 2027.

  • Interest on ATO debt has not been tax-deductible since 1 July 2025.
  • Payday Super began on 1 July 2026: anyone paying staff must get super in within seven business days of every payday. The ATO’s lenient first year ends on 30 June 2027.
  • No more credit cards: the ATO now plans to stop accepting them after 30 June 2027 (delayed from 30 November 2026), removing up to around 55 days of breathing room on tax payments.
Each one on its own is manageable. Together they remove the buffers a business leans on while a cash problem builds. See the detail and sources →
Learn from someone else’s numbers first

Six worked examples. Six different ways cash runs short.

Hypothetical businesses and clubs, built from patterns seen again and again in real Australian closures.

Start your own story

Their stories are the warning. Yours doesn’t have to end the same way.

Business owner or CFO
Start with your accountant

They lead the setup, then add you: your own Solvency Forecast, built on the right footing.

Accountant
Set it up for your clients

A new service that starts where your compliance work stops: you lead the setup, then add the owners.

Or start right now, either way.

Start your own sustainable cashflow →
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