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Owner know-how

How to plan a big purchase for your business: from quote to cash flow

Plan a big business purchase in Australia: price the true total cost, time it around BAS and tax, pick the right finance and avoid the traps before you sign.

Updated 25 October 2026 · Reviewed by the Australian Business Loan Directory editorial team

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Quick answer

Plan a big business purchase backwards from the day the money leaves your account. Price the true total (GST, delivery, installation, insurance, fees), decide how the asset will earn or save its repayment, choose the finance that matches the asset's life, and test the repayments against your slowest quarter. Then get the quote, the finance and the delivery date lined up before you commit.

Key points

  • The sticker price is rarely the real cost: add GST timing, delivery, installation, insurance and finance fees
  • Match the finance term to the asset's useful life, not to the lowest repayment
  • Test the repayment against your slowest quarter, not your average one
  • A quote has an expiry date and a supplier's delivery date can move; both affect the loan
  • Decide the deposit and cash buffer first; the loan amount is whatever is left

Buying a new press, a second van, a fit-out or a stack of inventory is usually the biggest single decision a small business makes in a year. It is also the one most often made in a hurry, because the old machine died, the supplier’s price expires on Friday or a big job needs the gear by the end of the month.

The aim of this guide is to slow that decision down just enough. It gives you a sequence to follow, a few numbers to work out before you talk to a lender, and the places where purchases most commonly go wrong.

What is the real cost of the purchase?

Start with the full cash outlay, not the headline price. A realistic total usually includes:

  • the price itself, shown clearly as GST-inclusive or exclusive;
  • delivery, installation, commissioning and any training;
  • stamp duty and registration if it’s a vehicle;
  • insurance, which a lender will require for financed assets;
  • finance establishment and account-keeping fees;
  • accessories without which the asset can’t do the job (tooling, software licences, racking);
  • the cost of downtime while you install it.

Write the list on one page and total it. The number is nearly always higher than the quote, sometimes by 10% or more, and that’s what the funding has to cover.

If you are GST-registered, remember that GST on the purchase leaves your account on the day and comes back through your BAS. On a $90k asset that’s $9k out of the account for a month or more. Some lenders finance the GST, some don’t, so ask.

Why are you buying it, and how does it pay for itself?

Lenders and good advisers ask the same question: what does this asset do for the business? Write the answer in one of three forms.

  1. It earns more. A second oven means 60 more loaves a day; a new excavator means jobs you currently turn down.
  2. It costs less. Newer equipment that uses less fuel, a software upgrade that saves staff hours.
  3. It’s required. The old one is dead, or a regulator or contract requires it.

Put numbers on the first two: extra revenue or saved cost per month, less the running costs. If the result doesn’t comfortably exceed the repayment, you are relying on hope. The break-even calculator will show how many extra sales or jobs you need each month for the asset to cover itself.

For “required” purchases, the question changes: not whether to buy but whether you can buy something cheaper, used or leased. See finance for used equipment.

How much cash should you commit, and how much should you borrow?

Resist the temptation to start with the loan. Start with the buffer.

  1. Work out the cash cushion you won’t touch. For many owners, that’s several weeks of fixed costs: wages, rent, super, tax. Our guide to setting up a cash buffer helps you size it.
  2. Decide the deposit you’re willing to pay from cash on top of that cushion.
  3. The loan covers the rest.

A sound rule of thumb is to match the way you pay with how long you’ll use the asset. That means a five-year machine financed over about five years, not over twelve months to keep the “total interest” down, and not over ten years because the repayment looks small.

Which finance fits the purchase?

Purchase Common fit Why
Vehicles, machinery, tools Chattel mortgage or hire purchase The asset is the security; you own it
Equipment you’ll replace often Finance lease or operating lease Lower outlay, return or upgrade at end
Stock or a large order Trade finance, invoice finance or a short-term loan Money is needed for weeks, not years
Fit-out or premises works Secured term loan, sometimes against property Long life, bigger amounts
Software, marketing, training Unsecured term loan or cash Nothing tangible to secure

Two comparisons are worth reading before you decide: leasing vs buying equipment and equipment finance vs paying cash.

How does timing change the cost?

Three timing questions are worth answering before you commit.

When does the asset start earning? A fit-out may sit idle through a 6-week build. A truck may need rego, signage and insurance first. Plan to make repayments for that period out of existing cash flow.

Where does it land in your tax year? The instant asset write-off lets eligible small businesses deduct the full cost of an eligible asset in the year it is first used or installed ready for use, up to a threshold set by law. That is why late-June purchases are so common, and why a delivery delayed to July can push the deduction out a year. Check the current threshold with the ATO and your accountant, and read instant asset write-off and equipment finance for how it interacts with a loan. A tax deduction reduces the net cost; it doesn’t create cash, and it only helps in a year with taxable profit.

What does your cash calendar look like? Line up the repayment start against BAS, super, payroll and seasonal lows. An asset that begins repayments in your quietest month tests the plan hardest. The 13-week view in how to build a 13-week cash flow forecast is made for this.

Already have a quote and want a second view on the funding side? You can send us the details while you keep planning.

How do you stress-test the plan?

Run the numbers three ways.

  • Base case: the asset performs as hoped.
  • Slow case: revenue from the asset is 70% of the estimate, and it starts a month late.
  • Bad case: the asset earns nothing for two months while repayments run.

If the bad case breaks the business, either the purchase is too big or the deposit is too small. If it only dents the buffer, you have a plan.

An illustrative example

A joinery workshop wants a new CNC router at $120k plus GST. The owner’s first draft was “$132k, finance it over five years.”

After the checklist, the real picture looked like this:

  • Price $120k; GST $12k, claimed back in the next BAS;
  • installation and dust extraction, $8k;
  • insurance and tooling, $4k in year one;
  • total cash needed up front: about $144k including GST, before the refund.

The owner puts $24k down from cash, keeps the buffer untouched, and finances $108k ex-GST over five years with a modest balloon. The router is expected to save outsourcing costs and add capacity for two extra jobs a month. In the slow case, with only one extra job a month, repayments are still covered. In the bad case, with the router installed a month late, the buffer absorbs it.

That’s an example, not advice for a particular business. The method is the point: the final structure came from the stress test, not from the first quote.

What mistakes catch owners out?

  • Signing the supplier’s finance on the spot. It can be perfectly good, but compare it with at least one other source first.
  • Ignoring the expiry on the quote, then accepting a price rise when approval takes a week longer than planned.
  • Financing the term to the repayment, not the asset. A short-lived asset on a long loan leaves you owing money on something you’ve replaced.
  • Forgetting running costs. Maintenance, fuel, licences and extra staff all come after the purchase.
  • Buying in a panic. Our guide to how to avoid panic borrowing covers the pull of the deadline.
  • Not telling the lender about delivery risk. If the supplier’s timeline is loose, the settlement date needs to be too.

When does a loan make sense, and when should you wait?

Borrowing makes sense when the asset has a clear payback, the repayment sits comfortably inside your slow-quarter cash flow and the loan term is shorter than the asset’s useful life. Waiting makes sense when the case relies on a contract you haven’t won, a market you haven’t tested or a deadline someone else set. Our guide on when to borrow to grow goes deeper on that line.

Banks are often the cheapest source of money for an asset purchase, and if your business fits their criteria, take their offer seriously. If the answer from your bank was no, or too slow for the supplier’s timeline, other lenders assess equipment and trade purchases on the asset and the cash flow, and it’s worth hearing what they would do.

Ready to put numbers on your purchase?

By now you have a total cost, a deposit, a stress test and a shortlist of finance types. That’s what makes an enquiry quick. Share them in our form: it takes about a minute, there’s no credit check at this stage and your details stay with us instead of travelling to a long list of lenders. A real person looks at your plan and rings you to talk through the options. The more accurately you describe the asset, the price and the delivery date, the better the first option we put forward.

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Frequently asked questions

How far ahead should I plan a major business purchase?

For anything that would strain your cash if it went wrong, allow two to three months: one to price and shortlist, one to arrange finance and one for delivery and set-up. Rush decisions tend to be the expensive ones. If the purchase is driven by a breakdown, ask the supplier for hire or loan equipment while you plan.

Should I pay cash or finance a big purchase?

Neither is always right. Paying cash saves finance charges but can drain the buffer you need for slow months. Financing spreads the cost across the years the asset earns. A common middle path is to pay a deposit from cash and finance the balance, keeping a set amount in reserve. Our comparison of equipment finance and paying cash goes through it.

Does GST affect how I plan the purchase?

Yes. If you're registered, you generally pay GST on the purchase and claim it back in your BAS, but the cash leaves on the day and returns later. Some lenders will finance the GST portion as a short-term bridge; others finance the ex-GST price only. Check which applies so the deposit isn't a surprise.

Can I claim the whole purchase as a tax deduction straight away?

Sometimes. The instant asset write-off lets eligible small businesses deduct the full cost of an asset in the year it is first used or installed ready for use, but only up to a set threshold and only for eligible assets. The threshold and cut-off dates are set by law, so check the ATO's current position before relying on it.

What happens if the supplier delivers late and my finance has already started?

It depends on the contract. Some lenders start repayments on settlement, others on delivery acceptance. If the delivery date is uncertain, ask the lender to settle only when you sign the delivery receipt, and ask whether interim charges apply. Never sign a delivery acceptance for something that hasn't arrived.

How do I know the purchase will pay for itself?

Put a number on it. Estimate the extra revenue or the saved cost per month, subtract running costs, and compare the result with the monthly repayment. If the margin is thin, build a conservative case where results come in at 70% of your estimate. A break-even calculation will show how many extra jobs or sales you need.

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