Interest-only, balloon or principal and interest? Business loan repayments explained

Two loans for the same amount can feel completely different depending on how they’re repaid. One takes a steady bite every month and is gone in four years. Another barely touches your cash for a year and then asks for a big cheque. Neither is wrong — but picking the structure that suits your business is just as important as picking the loan type. This guide explains the main options in plain English.

What are the main repayment structures?

Structure	What you pay along the way	What’s left at the end	Typical use
Principal and interest (P&I)	Interest + some principal each time	Nothing	Most term loans
Interest-only	Interest only, for a period	The full amount borrowed	Short-term needs, bridging, some property-secured loans
Balloon / residual	Reduced regular repayments	A lump sum	Vehicles, equipment, leases
Capitalised interest	Nothing (interest added to balance)	Amount borrowed + interest	Short-term secured, bridging, caveat loans
Prepaid interest	Interest paid up front	The amount borrowed	Short-term secured loans
Revenue-linked	A share of daily card sales	Nothing once the agreed total is reached	Merchant cash advances
Seasonal	Larger repayments in income months	Nothing	Farms and seasonal businesses

How does principal and interest work?

Each repayment covers that period’s interest and knocks a little off the amount borrowed. Early on, more of each repayment goes to interest; later, more goes to principal. By the end of the term, the loan is fully repaid. It’s the simplest, most predictable structure and usually the cheapest overall for a given term, because the debt shrinks steadily.

Best for: most business term loans, equipment finance without a balloon, debt consolidation.

When does interest-only make sense?

Interest-only means paying just the interest for a set period while the principal stays put. Regular repayments are lower, which helps cash flow — but you haven’t reduced the debt, so it must be repaid in a lump sum, refinanced or converted to principal and interest later.

It suits situations with a clear, near-term exit: a property or business sale, a refinance, or a big payment due. It’s also used on some property-secured loans where the plan is to repay from a known event. It’s risky when the “exit” is really just hope.

Best for: bridging loans, short-term loans with a documented exit.

How do balloons and residuals work?

A balloon (on a loan) or residual (on a lease) is a lump sum set aside for the end of the term. Because part of the cost is deferred, regular repayments are lower. business.gov.au notes that dealer finance on cars often includes a large final payment known as a balloon or residual — the same idea applies widely to vehicle and equipment finance.

The key question: what will the asset be worth when the balloon falls due? If you expect to trade it in for at least the balloon amount, it works neatly. If the asset will be worn out and worth less than that final sum, you’ll need to find the difference.

A sensible approach: set the balloon at or below a conservative estimate of the asset’s future value, given how hard you’ll use it.

What are capitalised and prepaid interest?

Short-term secured loans — bridging, caveat and many second mortgages — often avoid regular repayments altogether:

• Capitalised interest is added to the loan balance each month. Nothing comes out of your account during the term, but the payout at the end is larger than the amount borrowed.
• Prepaid interest is paid up front, usually deducted from the loan proceeds. You receive less cash at settlement, but there’s nothing more to pay until the end.

Both suit loans with a clear exit event, because they keep cash free while you wait for it. The important thing is knowing the total payout figure in dollars and what happens if the exit is late.

How do revenue-linked and seasonal repayments work?

• Revenue-linked — used by merchant cash advances — takes a fixed share of daily card sales until an agreed total is repaid. Repayments shrink on slow days and grow on busy ones.
• Seasonal schedules — offered by some lenders for farms and other seasonal businesses — line up larger repayments with harvest, sale or peak-trading months. See seasonal business finance.

Both trade a little predictability for a better fit with irregular income.

How do the structures compare? (illustrative)

Imagine three ways to fund the same vehicle over the same term:

1. Principal and interest, no balloon — the highest regular repayment, the lowest total cost, and nothing owing at the end.
2. With a moderate balloon — lower regular repayments, a higher total cost, and a lump sum at the end that the trade-in should cover.
3. With a large balloon — the lowest regular repayments, the highest total cost, and the chance the vehicle ends up worth less than what’s still owing.

None is “right” in isolation. Option one suits a business with healthy cash flow that plans to keep the vehicle for its whole life. Option two suits a business that upgrades regularly. Option three is only sensible when the vehicle will hold its value unusually well. This comparison is illustrative — actual figures depend on the loan and your circumstances.

How do you choose the right structure?

Ask yourself:

1. What does my cash flow look like? Steady income suits P&I; lumpy or seasonal income may suit seasonal or revenue-linked structures.
2. How long will the asset or purpose last? Match the term to it — see matching the loan to the job.
3. Is there a clear exit? Interest-only and capitalised structures need one.
4. What will the asset be worth at the end? Critical for balloons and residuals.
5. What’s the total cost in dollars? Lower repayments now almost always mean a higher total.

If you’d like help comparing structures for a specific loan, send us the details and a real person will walk you through the options.

What questions should you ask a lender about repayments?

• What’s the regular repayment amount and frequency?
• How much will I pay in total over the term, in dollars?
• Can I make extra repayments, or repay early? Are there fees?
• If there’s a balloon or interest-only period, what happens at the end?
• If interest is capitalised or prepaid, what’s the final payout figure?
• What happens if I miss a repayment?

What’s the most common repayment mistake?

Choosing the structure with the lowest regular repayment without looking at what it costs in total — or what’s waiting at the end. A balloon that can’t be covered, an interest-only period that ends before the sale happens, or a capitalised loan whose final payout is a surprise can all turn a sensible loan into a stressful one. A few minutes with the numbers up front avoids that.

How do repayment structures affect your borrowing power?

Lenders assess whether you can afford the repayments, so structures with lower regular repayments can sometimes support a slightly larger loan. That’s not always a good thing. Borrowing more because the repayments look manageable today can leave a much bigger total to repay — or a large lump sum at the end. Size the loan to the job first, then choose the structure that fits your cash flow, rather than the other way round.

Can you change the structure later?

Sometimes. Many loans allow extra repayments, and some allow a balloon to be refinanced at the end. Switching from interest-only to principal and interest usually happens automatically when the interest-only period ends. But changing a structure mid-loan often means a refinance, with new fees. It’s far easier to choose well at the start.

Want help choosing how to repay?

The right repayment structure makes a loan feel easy; the wrong one makes it feel heavy, even at the same total cost. We’ll lay out the options for your situation in plain dollars.

There’s no credit check to enquire, your details aren’t sprayed across a host of lenders, and a real lending specialist will call you. Tell us accurately what you’re funding, how your income flows and any exit you’re relying on, and we’ll match the right structure first time. See if you qualify.