⚡ Your Write-Off Savings Calculator
🆕 Your Year 1 Tax Outcome
Write-Off Type
Instant Write-Off
Asset price (inc. GST)$18,000
Less: GST credit receivable− $1,636
Less: Year 1 tax saving− $4,090
Year 1 repayments (if financed)$3,876
Net Year 1 out-of-pocket$2,146
✓ This asset qualifies for the full instant write-off — the entire cost (business-use portion) is deductible in Year 1.
Structure Comparison: Cash vs Chattel Mortgage vs Finance Lease
The table below shows how your Year 1 tax outcome differs depending on whether you pay cash or finance via chattel mortgage or finance lease.
Cash
Cash / Own Funds
Up-front cost$18,000
Write-off deduction$16,364
GST credit$1,636
Year 1 tax saving$4,090
Net cost Year 1$12,274
Best for tax
Chattel Mortgage
Deposit$0
Monthly repayment$323
Write-off deduction$16,364
GST credit$1,636
Year 1 tax saving$4,090
Net Year 1 cash out$2,146
Lease
Finance Lease
Monthly lease payment$327
Write-off deductionNot eligible
Annual deduction$3,924
Year 1 tax saving$981
Net Year 1 cash out$2,943
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How the Instant Asset Write-Off Works in 2026
The instant asset write-off allows eligible small businesses to immediately deduct the full cost of qualifying assets costing below the threshold in the year they are first used or installed ready for use. The 2026–27 Federal Budget proposes to make this permanent at the $20,000 threshold, removing the annual "will it or won't it" uncertainty that has plagued the scheme for years.
Key rules for 2026–27
- Your aggregated annual turnover must be under $10 million
- The asset must cost under $20,000 excluding GST (i.e. $21,999 inc. GST if you are GST-registered)
- The asset must be used or installed ready for use before 30 June 2027
- Assets costing $20,000+ go into the small business depreciation pool (15% in Year 1, 30% per year thereafter)
- Private-use portions are excluded — only the business-use % is deductible
- Multiple assets under $20,000 each all qualify — there is no cap on the number of assets
Chattel mortgage vs finance lease: the write-off difference
This is the hidden advantage of chattel mortgage over finance lease for assets under $20,000. Under a chattel mortgage, you take ownership of the asset from day one, which means you can claim the instant write-off in full — even though you financed it. Under a finance lease, the lender retains legal ownership and you can only deduct the lease payments spread over the term. The comparison above shows this difference in dollars.
Three worked examples
| Asset | Price (inc. GST) | Write-off amount | Tax saving (25%) | After GST credit |
| Ute fitout & toolboxes | $16,500 | $15,000 | $3,750 | $5,250 benefit |
| Pressure washer | $8,800 | $8,000 | $2,000 | $2,800 benefit |
| Trailer (business-use) | $19,800 | $18,000 | $4,500 | $6,300 benefit |
Assumes 100% business use, GST-registered, 25% small company tax rate. "Benefit" = tax saving + GST credit combined.
Instant Asset Write-Off FAQ
What is the threshold in 2026?▼
The 2026–27 Budget proposes a permanent $20,000 threshold. Your asset must cost under $20,000 excluding GST. If you are GST-registered, a $21,999 inc. GST asset qualifies ($19,999 ex-GST).
Can I claim on a financed asset?▼
Yes — if you finance via chattel mortgage (you own it from day one). Finance lease does not qualify as the lender retains ownership. Operating lease also does not qualify.
Does this apply to used assets?▼
Yes. Both new and second-hand assets qualify, provided they are below the threshold and used for business.
Can I buy multiple assets?▼
Yes. Each individual asset under $20,000 qualifies separately. A $19k trailer AND a $15k compressor both gain the write-off independently.
What if my asset is over $20,000?▼
Assets $20,000+ go into the small business general pool: 15% in Year 1 (half-year rule) and 30% per year diminishing value from Year 2 onwards. The calculator above shows these figures when you enter a price over $22,000 inc. GST.
Do I need an ABN?▼
Yes. You must be carrying on a business with an active ABN and with aggregated annual turnover under $10 million.
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