Instant Asset Write-Off Calculator 2026 | Your Tax Saving

Instant Asset Write-Off Calculator 2026

Enter an asset amount to model an illustrative Year 1 deduction, GST credit and net cost. The permanent $20,000 threshold is a 2026–27 Budget proposal and was not law when reviewed on 9 August 2026.

$20,000
Proposed Threshold
25%–30%
Company Tax Rate Saving
<$10M
Turnover Threshold
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Your Write-Off Savings Calculator

Your Year 1 Tax Outcome

Year 1 Tax Saving
$4,090
GST Credit (BAS)
$1,636
Write-Off Amount
$16,364
Monthly Repayment
$323
Net Year 1 Cost
$2,146
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 can allow eligible small businesses to deduct the business-use portion of qualifying assets below the threshold in force when they are first used or installed ready for use. The 2026–27 Federal Budget proposes a permanent $20,000 threshold, but the relevant bill remained before Parliament when this page was reviewed. Treat the calculator result as a scenario, not an entitlement.

Proposed 2026–27 settings to model

  • 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 proposed settings must first be enacted and apply when the asset is used or installed ready for use
  • 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

Ownership and tax treatment differ by contract. A chattel mortgage may allow the business to claim depreciation or an available immediate deduction where all eligibility requirements are met. Under a finance lease, the lessor generally owns the asset during the term and the lessee’s deductions are determined under the applicable tax rules. Confirm both structures with a registered tax adviser.

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Three worked examples

AssetPrice (inc. GST)Write-off amountTax 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, but the proposal was not yet law when reviewed on 9 August 2026. If enacted as proposed, the cost must be less than $20,000 under the applicable GST rules. Confirm current law and the asset’s tax cost with an adviser.
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.

Authored by David Blackman — Specialist Asset & Equipment Finance Broker, 20+ years banking & fleet experience. Tax-law status editorially checked: 9 August 2026; results remain illustrative.

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).