Chattel Mortgage Calculator Australia
Estimate repayments, total interest and balloon outcomes for a business-purpose chattel mortgage. Adjust the asset, deposit, term and rate below—no signup required.
Planning estimate only. Tax-related figures are illustrative and depend on current law and your circumstances.
Worked Chattel Mortgage Scenarios
These examples use the same amortisation method as the calculator. They are planning scenarios—not rates available to a particular applicant—and exclude lender and broker-related transaction fees.
| Business asset | Inputs | Amount financed | Monthly repayment | End balloon | Total interest |
|---|---|---|---|---|---|
| $65,000 ute | $5,000 deposit · 7.50% p.a. · 5 years · 20% balloon | $60,000 | $1,037 | $12,000 | $14,209 |
| $185,000 truck | $20,000 deposit · 8.00% p.a. · 5 years · 30% balloon | $165,000 | $2,672 | $49,500 | $44,815 |
| $95,000 equipment | $10,000 deposit · 9.00% p.a. · 4 years · 10% balloon | $85,000 | $1,967 | $8,500 | $17,938 |
Rounded to the nearest dollar. Balloon is calculated as a percentage of the amount financed. Total interest equals scheduled repayments plus the balloon less the amount financed. Fees and tax effects are excluded.
Before you calculate
- Purchase invoice or dealer quote and GST status
- Cash deposit or trade-in value
- Preferred term and realistic ownership period
- Current rate indication and all known fees
Before you request pricing
- Run 0%, 20% and 30% balloon scenarios
- Record the repayment, balloon and total interest
- Check the balloon against expected asset value
- Ask for fees, total amount payable and early-payout terms
Turn the Scenario Into a Comparable Quote
Send the asset, seller, price, deposit, term and balloon you modelled. A broker can then test the same transaction across available lender policies.
Request Transaction-Specific Pricing →What this calculator includes
Use the primary chattel mortgage estimate first, then compare other structures under the same planning assumptions.
- Repayments and interest: indicative scheduled repayments and total interest based on the entered rate, term, deposit and balloon.
- Balloon impact: the trade-off between lower scheduled repayments and the lump sum remaining at the end.
- Tax-related modelling: illustrative GST, interest and depreciation figures only. Eligibility and timing depend on the transaction, business use and current law.
Confirm tax treatment with a registered tax adviser. Calculator results are not a quote, approval or recommendation.
How to Use the Chattel Mortgage Calculator
- Enter your asset price — the purchase price including or excluding GST
- Select "Chattel Mortgage" as your finance structure
- Set your term — typically 3–7 years
- Enter an interest rate — use a current lender indication or a conservative planning assumption
- Add a balloon (optional) — 0–50% to reduce regular payments
- Review results — repayments, total interest, balloon and illustrative tax-related figures
What the Calculator Shows You
- Weekly and monthly repayments — principal + interest
- Potential GST credit — a simplified model that does not determine eligibility
- Year 1 interest amount — separated for discussion with your tax adviser
- Illustrative depreciation — based on the calculator assumptions, not a tax determination
- Total cost over the term — including interest and balloon
All results are estimates for general guidance. Actual terms depend on lender approval. Consult a tax professional for advice specific to your situation.
How the Tax Estimate Works
Understanding the three tax levers behind the calculator helps you verify the numbers and brief your accountant.
For a fully creditable acquisition, the calculator uses the simplified assumption purchase price ÷ 11. It does not determine whether the purchase is creditable or the portion attributable to business use.
Actual GST treatment and BAS timing can differ because of registration status, business-use percentage, the transaction structure, vehicle limits and other rules.
Confirm the contract and current GST rules with your accountant or registered tax adviser before relying on this figure.
The calculator uses a standard amortisation schedule to estimate the interest component paid during Year 1.
Eligible business-use interest may be deductible, but eligibility, timing and apportionment depend on the borrower and transaction. The modelled amount is not a tax saving or guaranteed deduction.
Depreciation treatment depends on the entity, asset, business-use proportion, acquisition and use dates, and the rules applying in the relevant income year.
The calculator provides an illustrative Year 1 amount under its displayed assumptions. It does not determine eligibility for an instant asset write-off, a depreciation pool or a particular method.
Use the result to brief your accountant, then confirm the current threshold, method and effective life before making a decision.
Chattel Mortgage FAQ
Learn More About Chattel Mortgages
Reviewed by David Blackman — Specialist Asset & Equipment Finance Broker, 20+ years banking & fleet experience. Last reviewed: 11 August 2026.
This page is general information only — not tax, legal or credit advice. Tax outcomes depend on your circumstances; confirm with your accountant and see the ATO on the instant asset write-off, the ATO on claiming GST credits and Moneysmart (ASIC).