Quick answer · Q.A02
Lenders size a business loan by testing serviceability (can the business carry the repayments from its real cash flow), security (what the loan is backed by, if anything), and purpose (what the money will achieve and how it will be repaid). Unsecured lenders lean mostly on turnover and bank statement conduct; property-secured lenders lean mostly on equity and a clear repayment or refinance plan.
Key points
- Serviceability asks whether repayments fit the cash that actually moves through the business, including in slow months.
- Security asks what backs the loan: nothing, a general security over business assets, or a mortgage or caveat over property.
- Purpose asks what the money achieves and where repayment comes from — trading income, a sale, a refinance or a receivable.
- Existing debts, especially daily or weekly repayments, reduce what's left for a new loan.
What are the three tests a lender runs?
Behind every loan offer sits a sizing process. The names vary from lender to lender, but the logic is consistent. Think of it as three questions asked in sequence.
| Test | The question | Evidence they use |
|---|---|---|
| Serviceability | Can the business carry the repayments? | Bank statements, BAS, financials, existing debts |
| Security | What backs the loan if things go wrong? | Property value and mortgages, business assets, guarantees |
| Purpose and exit | What will the money do, and how is it repaid? | Invoices, quotes, contracts, sale or refinance plans |
The loan amount is effectively the lowest answer across those three tests. That’s why two businesses with the same turnover can receive very different offers, and why a single number from an online calculator is rarely the real answer. Our overview of how much you can borrow sets out the broad ranges; this page explains the machinery.
How is serviceability tested?
Serviceability is about margin: after everything else is paid, is there enough left to meet the new repayment comfortably?
For unsecured and cash-flow lending, the starting point is usually your business bank statements. A credit analyst will look at:
- Average monthly deposits, and whether they’re trending up, flat or down.
- Consistency — regular customer receipts are weighed more heavily than lumpy one-off deposits or transfers between your own accounts.
- Account conduct — dishonours, frequent overdrawn days and bounced direct debits all signal pressure.
- Existing repayments to other lenders, the ATO and suppliers.
For longer-term or larger facilities, lenders usually add profit-based evidence: tax returns, profit and loss statements, and sometimes an accountant’s letter. Profit shows whether the business can carry debt over years, not just weeks.
How does security change the size?
Security is what the lender can rely on if the business can’t repay. The stronger and more certain the security, the more a lender can extend.
- No specific security (unsecured): sizing leans on turnover and conduct, which is why amounts typically sit between $5,000 and $500,000.
- A general security interest over business assets registered on the Personal Property Securities Register can support some facilities.
- Property — a first mortgage, a second mortgage behind an existing lender, or a caveat — supports the widest range: $20,000 to $5,000,000 for business purposes.
With property, the lender measures the loan against the property’s value and any debt already secured on it. That’s covered in detail in how much equity you can borrow against. If you’re weighing up whether to offer property at all, read secured or unsecured first.
Why does the purpose matter so much?
Because the purpose tells the lender where repayment comes from. A few common patterns:
- Trading-funded repayment. Stock, equipment or staff that lift income, repaid from ongoing cash flow.
- Event-funded repayment. A loan repaid in full when something specific happens: a property sale, a refinance approval, a large debtor paying, a tax refund.
- Clean-up repayment. Refinancing several expensive debts into one, so the new repayment is lower than the old combined ones.
When the purpose and the repayment source line up neatly, the lender can size to the need. When they don’t — for example, a short-term loan with no clear way out — the offer shrinks or disappears. If you’re mid-way through planning and would like a second opinion on how your situation reads, you can ask a real person to size it with you.
What does a sizing walk-through look like? (Illustrative example)
Illustrative only. Figures are simplified and don’t reflect any lender’s actual policy.
A Melbourne landscaping business asks for $150,000 unsecured to buy a second truck and hire a crew for a new council contract.
- Serviceability. Twelve months of statements show average deposits of around $95,000 a month, with a winter dip. There’s an existing equipment loan and a small ATO payment plan. After those, the margin supports a new repayment, but not at the level a short-term $150,000 unsecured loan would demand.
- Security. No property is offered. The truck itself could be security for an equipment-style facility.
- Purpose. The contract is signed and pays monthly, which strengthens the case.
A realistic outcome might be a smaller unsecured amount for the crew’s first months of wages combined with separate finance secured over the truck — or, if the owner has home equity and is comfortable using it, a single property-secured loan for the full amount on a gentler term. The request didn’t change; the route did.
Do all lenders size loans the same way?
No, and that’s one reason the same business can hear several different numbers. Banks tend to lean on historical profit and long-term serviceability, which suits established, profitable businesses asking for longer terms. Non-bank lenders often put more weight on current bank statement activity, which can help a business whose recent months are stronger than its last tax return. Private lenders offering property-secured loans generally focus most on the property and the exit plan, and less on historical profit.
None of these approaches is right or wrong; they suit different situations. A business with a strong current trading pattern but an old, weak tax return may be sized more generously by a lender that reads statements. A business with modest turnover but substantial property equity and a clear refinance path may be better served by a property-focused lender. Matching the business to the lender whose method fits is a large part of what a good specialist does. If you’re curious how your numbers look through each lens, our what lenders look at page walks through the checklist.
What can I do to size up well?
- Separate business and personal banking, so statements show business income clearly.
- Explain one-offs. A large deposit from selling a vehicle isn’t trading income; a big withdrawal to pay annual insurance isn’t a warning sign. Say so upfront.
- List every existing debt, including ATO arrangements. Surprises found later slow things down more than the debts themselves.
- Bring evidence for the purpose: quotes, contracts, the ATO statement of account.
- Choose the right term. A repayment that fits the slow months is sized more generously than one that only works in peak season.
Get it sized properly, first time
A sizing conversation is only as good as the information behind it. When you enquire, there’s no credit check at that stage, your details aren’t passed around a panel of lenders, and a real person works through serviceability, security and purpose with you. Complete the form carefully — especially turnover, existing debts and any property — so the number you hear on the first call is one you can rely on.
Frequently asked questions
What does serviceability mean on a business loan?
It's the lender's test of whether your business can afford the repayments. They look at income coming in, regular outgoings, existing debt repayments and how much margin is left, then check the new repayment fits with room to spare.
Do lenders use my turnover or my profit?
Both, depending on the lender and the product. Unsecured and cash-flow lenders often start with turnover and the pattern of deposits in your bank statements. Lenders offering longer terms usually want to see profit through tax returns or financial statements as well.
Why do some lenders ask for six months of statements and others for twelve?
More months show more of the pattern, including seasonal dips. A business with steady monthly income may be assessed on a shorter window; a seasonal business is usually better served by showing a full year so the quiet months are understood rather than guessed at.
Can a strong property make up for weak cash flow?
Partly. Property security can support a loan that cash flow alone wouldn't, particularly for short terms with a clear exit such as a sale or refinance. But lenders still need to believe the loan will be repaid, so a plausible repayment plan matters.
Will my other loans reduce what I can borrow?
Usually, yes. Existing repayments come out of the same cash flow, so they reduce what's left for a new loan. Frequent daily or weekly repayments to several lenders are viewed especially cautiously.