Cash Flow Management: The #1 Skill Every Business Owner Needs
Sophie Chen
Head of Content at SortBooks
In this article
Cash Flow vs Profit: They Are Not the Same
This is the most important financial concept in business: you can be profitable and still run out of cash. Profit is an accounting concept. Cash flow is a survival concept.
Consider this scenario: you invoice a client $50,000 for a completed project. Your profit on that project is $20,000. On paper, you are profitable. But the client will not pay for 60 days. Meanwhile, your rent ($3,000), payroll ($12,000), and supplier bills ($5,000) are due this week. You are profitable but cash-broke.
This is how businesses with full order books go bankrupt. They have plenty of revenue and healthy margins but cannot pay their immediate obligations.
Understanding Your Cash Flow
Cash flow has three components:
Operating Cash Flow
Money coming in and going out from your core business activities. Customer payments minus supplier payments, wages, rent, and operating expenses. This should be positive for a healthy business.
Investing Cash Flow
Money spent on (or received from) long-term assets. Buying equipment, vehicles, or property. This is typically negative and that is fine - you are investing in future capacity.
Financing Cash Flow
Money from loans, owner contributions, or equity investments, minus loan repayments and dividends. This reflects how you fund your business.
The critical number is operating cash flow. If your core business operations consistently generate positive cash flow, you can survive most challenges. If operating cash flow is negative, no amount of financing can save you forever.
The Cash Flow Forecast
A cash flow forecast predicts your bank balance for the coming weeks and months. It is the single most useful financial tool for a small business owner.
Building Your Forecast
Step 1: Start with today's bank balance
Your actual, current bank balance. Not your accounting balance - your real bank balance.
Step 2: List expected cash inflows
- Invoices already sent with expected payment dates
- Recurring revenue (subscriptions, retainers)
- Expected new sales (be conservative)
- Any other expected income
Step 3: List expected cash outflows
- Fixed costs: rent, subscriptions, loan repayments, insurance
- Variable costs: materials, utilities, communications
- Payroll: wages, super, PAYG withholding
- Tax obligations: BAS/VAT payments, income tax instalments
- One-off expenses: equipment purchases, annual payments
Step 4: Calculate the running balance
For each week, add inflows and subtract outflows from the running balance. If the balance goes negative at any point, you have a cash flow problem that needs addressing before it arrives.
Review Weekly
Update your cash flow forecast every week. Adjust for invoices that have been paid, new invoices sent, and any changes in expected expenses. A forecast that is updated weekly is 10x more useful than one that is updated monthly.
Improving Cash Inflows
Invoice Faster
Invoice the day the work is complete or the product is delivered. Every day of delay in invoicing adds a day to your cash collection cycle.
Offer Early Payment Incentives
A 2% discount for payment within 7 days costs you $200 on a $10,000 invoice but could accelerate your cash receipt by 23 days. Calculate whether the discount is worth it for your business.
Accept Multiple Payment Methods
Make it easy for customers to pay. Offer bank transfer, credit card, and BPAY. Customers who can pay with one click on an invoice link pay an average of 15 days faster.
Automate Payment Reminders
Set up automated reminders in Xero at 7, 14, and 21 days overdue. Many late payments are simply forgotten, not disputed. A polite reminder is often all it takes.
Request Deposits
For large projects, require a 30-50% deposit before work begins. This funds your costs and reduces the risk of non-payment.
Shorten Payment Terms
Move from Net 30 to Net 14. Most clients will accept shorter terms without complaint. The ones who push back are often the ones who pay late anyway.
Managing Cash Outflows
Negotiate Payment Terms
Ask suppliers for longer payment terms. Net 30 instead of Net 14, or even Net 45 for large regular suppliers. This keeps cash in your account longer.
Time Your Purchases
If you have flexibility on when to make large purchases, time them after your major cash inflows rather than before.
Review Subscriptions Quarterly
Software subscriptions accumulate silently. Review all recurring charges quarterly and cancel anything you are not actively using.
Use Credit Strategically
A business credit card with a 30-55 day interest-free period is effectively a free short-term loan. Pay it off in full each month and you extend your cash float without any cost.
Build a Cash Reserve
Aim for 2-3 months of operating expenses in a separate savings account. This is your emergency fund. It prevents a single late payment from creating a crisis.
Cash Flow Red Flags
Watch for these warning signs:
- Consistently negative operating cash flow - Your business is burning cash. This is not sustainable.
- Growing accounts receivable - Customers are taking longer to pay. Chase them now before it gets worse.
- Increasing reliance on credit - Using overdrafts or credit cards to cover regular expenses means you have a structural cash flow problem.
- Delayed supplier payments - If you are consistently paying suppliers late, your cash flow cannot support your current cost structure.
- Tax payment surprises - If BAS or tax payments surprise you, your forecasting is inadequate.
Tools for Cash Flow Management
Your accounting software is your primary cash flow tool:
- Xero's short-term cash flow feature shows your projected balance based on outstanding invoices and bills
- SortBooks provides AI-powered cash flow forecasting based on your historical patterns
- Bank feed automation ensures your data is always current so forecasts are based on real numbers
The difference between businesses that survive tough periods and those that do not is almost always cash flow management. The skill is learnable, the tools are affordable, and the payoff is the survival of your business.
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