Quick Answer
For most GST-registered Australian businesses, a chattel mortgage is the better choice. You own the asset from day one, claim the full GST upfront, and get maximum tax benefits. A finance lease suits businesses that want to avoid the residual risk of ownership or need off-balance-sheet treatment.
Side-by-Side Comparison
Full Feature Comparison
| Feature | Chattel Mortgage | Finance Lease |
|---|---|---|
| Asset ownership during term | ✓ Borrower owns asset | Lender owns asset |
| GST credit timing | Upfront — full amount, next BAS | Over repayments (gradual) |
| Interest deductions | ✓ Interest component deductible | ✓ Lease payment deductible |
| Depreciation method | All ATO methods (DV, Prime, SBE pool) | Finance lease method (AASB 16) |
| Instant asset write-off eligible | ✓ Yes (if business <$10M & asset ≤$20K) | ✓ Yes (AASB 16 treatment) |
| Balloon / Residual | Optional — any amount 0–50% | ATO mandates minimum residual |
| ATO minimum residuals (5yr term) | N/A — no minimum | ~35–65% of cost (varies by term) |
| End of term | Pay balloon (if any) — own outright | Pay ATO residual to take title |
| Early payout | ✓ Yes (break cost may apply) | ✓ Yes (break cost may apply) |
| Balance sheet treatment | Asset + liability on balance sheet | Asset + liability (AASB 16) |
| Modify or sell asset | ✓ Yes — you own it | Needs lender consent |
| Best for | GST-registered, ownership preferred, max tax benefits | Businesses wanting ATO certainty on residuals |
Finance Lease: ATO Minimum Residual Values
Unlike a chattel mortgage where any balloon is optional, finance leases have ATO-mandated minimum residual values. These are set to prevent leases from functioning as purchase agreements with negligible residuals.
| Lease Term | ATO Minimum Residual (% of cost) |
|---|---|
| 1 year | 65.63% |
| 2 years | 56.25% |
| 3 years | 46.88% |
| 4 years | 37.50% |
| 5 years | 28.13% |
Source: ATO Taxation Ruling TR 2006/15. For vehicle leases — other asset classes may vary. Always confirm with your broker or accountant.
A chattel mortgage has no minimum balloon. You can set it at 0% and own the asset outright at the end of the term with no residual obligation.
GST: The Key Difference
This is one of the most significant practical differences between the two structures.
Claim 1/11th of the purchase price on your very next BAS. On a $110,000 vehicle: $10,000 GST credit within 28 days of lodging. Immediate cash flow benefit.
Claim the GST component in each monthly repayment. The same $10,000 total credit is eventually claimed, but spread over 60 months at ~$167 per month. Much slower cash recovery.
Real Example: $110,000 Vehicle
| Structure | GST in Year 1 | GST in Year 2 | GST in Year 3+ |
|---|---|---|---|
| Chattel Mortgage | $10,000 (all upfront) | $0 | $0 |
| Finance Lease | ~$2,000 | ~$2,000 | ~$2,000/yr (x5) |
The chattel mortgage returns $10,000 in Year 1. The finance lease delivers the same amount total but over 5 years.
Which Is Better: Chattel Mortgage or Finance Lease?
Choose a Chattel Mortgage if:
- You are registered for GST and want the upfront credit
- You want to own the asset immediately (modify, sell, use as security)
- You want to claim the $20,000 instant asset write-off for eligible assets
- You want the flexibility to set any balloon (including 0%)
- You want the simplest end-of-term outcome — just pay off the loan
- You're buying used assets where you want equity from day one
Choose a Finance Lease if:
- You want ATO-set residual certainty for fleet management planning
- You're a business that consistently upgrades assets and relies on the lender's end-of-term residual guarantee
- Your accountant recommends the AASB 16 treatment for financial reporting
- The upfront GST credit isn't a priority (e.g. not GST-registered, or not cash-flow constrained)
💡 Not Sure? Let a Broker Help
The right structure depends on your business type, GST status, cash flow, and tax position. A licensed broker can model both options with real numbers from multiple lenders and show you the actual net cost difference.
Get a Chattel Mortgage vs Finance Lease Comparison
A broker will run both options with real lender quotes — so you can see the actual cost difference for your situation.
FAQs
In most cases, yes. Tradies (sole traders) who are GST-registered benefit significantly from the upfront GST credit, which improves cash flow in the quarter they buy the asset. The ability to claim depreciation (including the $20K write-off for smaller tools and equipment) is also very valuable at sole trader marginal tax rates.
Under AASB 16, a finance lease appears on the balance sheet as a right-of-use asset and corresponding lease liability. This changed in 2019 when AASB 16 became mandatory for most entities. An operating lease may achieve off-balance-sheet treatment depending on the specific lease terms.
You can't convert a finance lease to a chattel mortgage mid-term. However, you can pay out a finance lease early (subject to break costs) and enter a new chattel mortgage. When taking on new assets, simply choose the chattel mortgage structure from the start.
For the same asset price, term, and rate, the repayment amounts are very similar. The key differences are: (1) the GST timing — chattel mortgage gets it all upfront; (2) the end-of-term obligation — finance lease has a mandatory ATO residual. Use the calculator to compare repayments side by side.