Cash Flow Management in the First 90 Days After Buying a Business in Australia
Cash flow management after buying a business means controlling the timing of money coming in and going out — separate from the profit the business earns on paper. In the first 90 days after settlement, most new owners discover that these two things can look very different. The business is profitable. The bank account is not behaving.
This is one of the most common surprises in business acquisition, and it's almost always avoidable with a bit of preparation. Here's what to expect and what to do about it.
Why Cash Flow Matters More Than Profit in the First 90 Days
A business can be genuinely profitable and still run out of cash. This happens because profit is an accounting concept — it's revenue minus expenses, recorded when the work is done. Cash is when money actually lands in your account.
If your new plumbing business completes $80,000 in jobs in October but doesn't invoice until the end of the month and gets paid on 30-day terms, you might not see that cash until December. Meanwhile, you need to pay your tradespeople every fortnight, buy materials, cover vehicle costs, and make your first loan repayment.
A useful rule of thumb: assume you'll need 8 to 12 weeks of operating costs sitting in reserve at settlement — not profit, not equity, actual cash in the account. Most buyers underfund this.
Common Cash Flow Problems After Buying a Business
Debtors who don't feel obligated to the new owner
Customers who owed the previous owner money will often slow-pay during a transition. It's not always intentional — there's just less urgency when the relationship is fresh. A broker told me about a buyer who took over a Queensland electrical contracting business and spent the entire first month chasing $47,000 in overdue invoices from the settlement debtor list. The money was there, but it took six weeks to collect.
Creditors who tighten terms immediately
When suppliers hear there's been a change of ownership, many will reset payment terms to 7 days or cash on delivery until you've established credit with them. If the previous owner had 60-day accounts built up over a decade, you won't inherit those automatically. Expect tighter terms and plan your cash accordingly.
Tax obligations that don't pause for you
Within the first quarter you'll hit a Business Activity Statement (BAS). If the business has employees, you're also making PAYG withholding payments and superannuation contributions. These are fixed, non-negotiable obligations that arrive whether or not you've finished setting up your bank accounts. Budget for them from day one.
Hidden costs in the first month
The equipment the previous owner "maintained fine" often needs attention once you actually look at it. A maintenance invoice or an unexpected plant repair is not unusual. See the first 90 days after buying a business guide for a full rundown of what to budget for.
How to Assess the Working Capital Position at Settlement
Working capital — the difference between current assets (mainly debtors and cash) and current liabilities (mainly creditors and short-term obligations) — is the buffer the business runs on day to day. Before you settle, you need to understand what working capital you're actually inheriting.
This is covered in the sale and purchase agreement through a working capital adjustment. The working capital adjustment is a mechanism that tops up or reduces the purchase price based on whether the business delivers more or less working capital than a pre-agreed target at settlement.
If the seller delivers less working capital than agreed, they owe you money. If they deliver more, you owe them. Get this right during due diligence — it's not uncommon for a buyer to walk away from settlement with $30,000 to $50,000 less working capital than expected.
Things to check at settlement:
- Debtors over 60 days (hard to collect, reduce their face value)
- Any creditors the seller paid out just before settlement to improve the balance
- WIP (work in progress) — jobs started but not yet invoiced
- GST position and any outstanding BAS obligations
Practical Steps to Stabilise Cash Flow Quickly
Invoice immediately and chase debts fast
The moment you take over, send updated invoices on all outstanding work. If the business uses paper dockets or end-of-month billing, switch to weekly or immediate invoicing from day one. In a trades business, same-day invoicing via job management software can cut your average debtor days from 45 down to 18 or so. That is a meaningful improvement in cash position within a month.
Consider using software like ServiceM8, simPRO, or Fergus to automate job completion and invoicing — it removes the admin delay between finishing a job and getting paid. This is one of the quick wins available in a trades business that has an immediate cash flow impact.
Contact every debtor in week one
Introduce yourself. Confirm the invoice. Confirm their payment details haven't changed. Confirm their billing contact. This call isn't just about money — it's about the relationship. You'll collect faster and find out which customers are worth keeping.
Negotiate terms with key suppliers early
Call your two or three largest suppliers in the first week. Introduce yourself, confirm the account details, and ask what credit terms are available. Most will start you on stricter terms — don't fight it yet. Prove yourself for 60 days, then ask for the terms back. Having this conversation early means you know what to expect.
Set up a cash flow forecast
A simple 13-week cash flow forecast — weekly columns, receipts in, payments out — tells you where the pinch points are before they hit. Most accounting software (Xero, MYOB, QuickBooks) will pull debtor and creditor data to populate it. If the business doesn't use accounting software yet, this is the first thing to implement. (Not AI-assisted fancy forecasting; just a spreadsheet that tells you when you're going to run short.)
Tracking KPIs in your new trades business alongside cash flow gives you early warning when revenue is softening before it hits the bank account.
When to Use a Line of Credit or Overdraft Facility
An overdraft facility or business line of credit is not a sign of trouble — it's an operating tool. Most established businesses carry one. If you've bought a business without arranging a facility, do it now, before you need it. A bank will lend to a business with 12 months of revenue history far more easily than to one that's only owned by you for three weeks.
Talk to your lender at settlement about converting or establishing an overdraft against the business's debtors. A facility of $50,000 to $100,000 gives you the breathing room to handle a slow-payer month without having to make hard decisions about payroll.
The key: use it for timing gaps, not structural shortfalls. If you're drawing on the overdraft every single month and not paying it back, that's a revenue or pricing problem, not a cash flow problem.
Want the full action plan? The First 90 Days Action Plan Template walks through every week of the first three months, including a cash flow checklist and the supplier/debtor contact sequence. It's free.
What This Means for Your Acquisition
Cash flow management in the first 90 days is not glamorous. It's largely about systems, discipline, and making a few phone calls. But it's where a lot of acquisitions come unstuck — not because the business was bad, but because the buyer didn't understand the timing mismatch between profit and cash.
The buyers who handle this well tend to do two things: they arrive at settlement with more cash than they think they need, and they start chasing debtors and invoicing quickly before the business has a chance to drift. This is covered in Module 8 of the Playbook, which walks through the full transition from settlement to operating independently.
For more on retaining customers in the early months — which is closely related to cash flow, since customer churn directly reduces receipts — there's a dedicated guide there too.
FAQ
How do small businesses manage cash flow?
The core tools are: weekly invoicing, regular debtor follow-up, a 13-week cash flow forecast, and a business overdraft facility for timing gaps. In a trades business, job management software that invoices on completion is the single biggest lever.
What is cashflow when buying a business?
Cash flow when buying a business refers to the timing of actual money in and out of the business — distinct from accounting profit. Buyers need to assess the working capital position at settlement and budget for a 8 to 12 week operating reserve above the purchase price.
Can I borrow money to buy an existing business?
Yes. Most buyers use a combination of bank lending (typically 50 to 70 per cent of the purchase price for a business with tangible assets), vendor finance from the seller, and personal equity. An overdraft facility can also be arranged at settlement to cover working capital needs.
What are the disadvantages of buying an existing business?
Inherited problems — customer expectations, staff culture, debtors, ageing equipment — all arrive on day one. The financial red flags to watch for during due diligence, including cash flow issues, are covered in the financial red flags guide.
If you want a weekly breakdown of what I'm seeing in real Australian acquisition deals — cash flow included — The Leveraged Worker newsletter covers it every week. No theory. Just what's actually happening on the ground.