Australian sole trader business schedule (Business and Professional Items Schedule for Individuals). Covers assessable business income, allowable deductions, home office (fixed rate 70c/hour or actual), motor vehicle (logbook or cents per km at 88c/km), depreciation (instant asset write-off, simplified pooling, general pooling), prepaid expenses, and trading stock.
Written by the OpenAccountants team. Written by the OpenAccountants team from the official sources it cites.
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Who must lodge
Any individual who carried on a business as a sole trader during the income year. Even if the business made a loss, the schedule must be lodged.ITAA 1997 s 4-15, ATO instructions for BPI schedule
ABN requirement
Check ABN entitlement, GST registration and withholding consequences separately. An ABN is not compulsory for every business activity. A tax invoice must meet GST requirements, and eligible payments without an ABN can attract 47% withholding subject to exceptions.[ABR](https://www.abr.gov.au/business-super-funds-charities/applying-abn/abn-entitlement)
Instant asset write-off threshold
For 2025–26, eligible small business entities using simplified depreciation can deduct assets costing less than $20,000 when first used or installed ready for taxable use. The permanent threshold was enacted on 26 August 2026; schedule 2 commences on 1 October 2026 and applies to specified first use or installation from 1 July 2026. [Tax Reform No. 2 Act 2026, schedules 1–2](https://www.legislation.gov.au/C2026A00071/asmade/text).ITAA 1997 Subdivision 328-D
Small business entity threshold
Aggregated turnover < $10MITAA 1997 s 328-110
Cents per km rate (motor vehicle)
88 cents per km for 2024-25 and 2025-26; 91 cents per km from 2026-27ATO cents per kilometre method
Cents per km cap
5,000 business km per car per yearITAA 1997 s 28-25
Home office fixed rate
70 cents per hour for 2024-25 through 2026-27 (67c applied for 2022-23 and 2023-24)ATO PCG 2023/1
Trading stock threshold (change in value)
$5,000: if an eligible small business entity reasonably estimates that the difference between opening and closing stock is $5,000 or less, the taxpayer can elect not to do a stocktakeITAA 1997 s 328-285
Prepaid expenses (SBE)
Immediately deductible if the service period is 12 months or less and ends on or before 30 June of the following yearITAA 1936 ss 82KZL and 82KZM
Business income (P8)
Step 1. Sum all gross business income received during the year: Sales of goods or services; Government subsidies (e.g., any remaining COVID-era grants assessable); Insurance recoveries; Commissions received. Step 2. Exclude amounts that are capital in nature (these go to the CGT schedule). Step 3. Report at P8 on the schedule.
Cost of goods sold
Step 1. Opening stock + Purchases - Closing stock = Cost of goods sold. Step 2. Trading stock can be valued at cost, market selling value, or replacement value (ITAA 1997 s 70-45). The method can differ item by item. Step 3. If an eligible small business entity reasonably estimates that year-end trading stock differs from opening stock by $5,000 or less (s 328-285), the taxpayer can elect to use the same value as opening stock (no stocktake required).ITAA 1997 s 70-45
General deduction provision
Deductions must satisfy the general deduction provision: incurred in gaining or producing assessable income, or necessarily incurred in carrying on a business for that purpose. Losses and outgoings of a capital, private, or domestic nature are not deductible (subject to specific provisions).ITAA 1997 s 8-1
Cents per kilometre method
Claim the current rate per business km, up to 5,000 km per car per year. 2025-26: 88c, maximum claim = 5,000 x $0.88 = $4,400 per car. 2026-27: 91c, maximum = $4,550. No logbook or written evidence of individual trips required, but must be able to show how the estimate was calculated.ATO cents per kilometre method; ITAA 1997 s 28-25
Logbook method
Maintain a logbook for a continuous 12-week period (valid for 5 years unless circumstances change). Calculate business-use percentage from logbook. Apply that percentage to total car expenses: fuel, insurance, registration, repairs, lease payments, depreciation. Depreciation of the car is capped at the car limit ($69,674 for 2024-25 and 2025-26; $69,883 for 2026-27).ATO car limit determination
Small business simplified depreciation
Step 1. Check eligibility: aggregated turnover < $10M. Step 2. Instant asset write-off: assets costing less than $20,000 (excl GST if registered) first used or installed ready for use in the income year are fully deductible in that year. Step 3. Assets costing $20,000 or more go into the small business pool: Pool is depreciated at 15% in the first year and 30% each year thereafter (diminishing value). If the pool balance falls below the instant asset write-off threshold at the end of the year, the entire pool is written off.
General depreciation
Use the effective life determined by the ATO (Income Tax Assessment (Effective Life of Depreciating Assets) Determination 2025) or a self-assessed effective life. Choose diminishing value (rate = 200% / effective life) or prime cost (rate = 100% / effective life). Apply from the date the asset is first used or installed ready for use.ATO Income Tax Assessment (Effective Life of Depreciating Assets) Determination 2025
Fixed rate method
Covers energy expenses (electricity, gas), phone, internet, stationery, computer consumables. Must keep a record of actual hours worked from home (e.g., timesheets, diary, roster). Separately claim occupancy expenses (rent, mortgage interest, rates, insurance) only if the home is a place of business (rare for sole traders without a dedicated area). Cannot separately claim expenses already covered by the fixed rate (70c from 2024-25).ATO PCG 2023/1
Actual cost method
Calculate the actual costs of running the home office. Apportion based on floor area of the dedicated work area as a percentage of total home area, and the proportion of the year the area is used for work. Keep receipts and records for every expense claimed.
Net business income or loss (P8)
Sum the P8 income and deductible expenses using the applicable accounting method and tax adjustments. The established mapping is P8 label Z to supplementary return question 15 label C for non-primary-production net income or loss; confirm those labels against the issued 2026 form. [ATO transfer instructions](https://www.ato.gov.au/api/public/content/0-58fc149a-82af-406a-a4e0-252beb58a86b). If there is a loss, complete P9 and test Division 35: the adjusted-income requirement must be less than $250,000 before relying on the assessable-income, profits, real-property or other-assets tests. Assess statutory exceptions and Commissioner discretion separately. Otherwise defer the loss.[ITAA 1997 s 35-10](https://www.ato.gov.au/law/view/document?docid=PAC/19970038/35-10)
Personal services income (PSI)
Screen each amount for whether it is mainly, ordinarily more than half, a reward for personal effort or skills. Then apply the separate personal services business tests. The 80% source-concentration rule is not the definition of PSI; consider the results test and other tests/determination rules in their proper order. Refer uncertain cases for review.[ITAA 1997 s 84-5 and TR 2022/3](https://www.ato.gov.au/law/view/document?docid=TXR/TR20223/NAT/ATO/00001)
Mixed-use assets
Assets used partly for private and partly for business purposes: claim only the business-use percentage. Maintain records of the split (e.g., logbook for car, diary for home office).
Prepaid expenses (SBE)
Small business entities can immediately deduct prepaid expenses if the service period is 12 months or less and ends by 30 June of the following income year. Example: 12-month insurance premium paid in May 2026 covering May 2026 to April 2027: deductible in 2025–26 if the statutory conditions are met.
Capital vs revenue
Expenditure that creates a new asset or provides an enduring benefit is capital and not deductible under s 8-1. It may instead be depreciable or added to the cost base for CGT purposes. Common grey areas: website development, major software, business restructuring costs.ITAA 1997 s 8-1
Hobby vs business
The ATO may deny deductions if the activity is a hobby, not a business. Indicators of a business: intention to make a profit, repetition and regularity, business-like organisation, size and scale, business plan.ATO guidelines, TR 97/11
Rendered from the canonical facts model. General reference only — confirm with a qualified professional before acting.
Obligation category: IT (Income Tax) Functional role: Bookkeeping + Computation Status: Complete
This file covers the Business and Professional Items (BPI) schedule that sole traders attach to their individual income tax return. The BPI schedule feeds into the individual return at "Business income or loss" items.
Tax year coverage: This skill targets the 2025–26 income year (1 July 2025 to 30 June 2026). Match the intake and assembly year before calculating.
The reviewer is the customer of this output. This skill assumes a credentialed reviewer reviews and signs the return. The skill produces working papers and a brief, not a return.
This skill covers:
This skill does NOT cover:
Due dates
| Lodgement type | Due date |
|---|---|
| Self-lodgers | 2 November 2026 (31 October falls on Saturday; check applicable extensions) |
| Tax agent lodgement | Per the ATO tax agent lodgement programme (2026–27 programme, depending on client category) |
Rates and thresholds (ITAA 1997 Div 328; ATO QC 103578)
| Item | Amount / Rate | Source |
|---|---|---|
| Instant asset write-off threshold | For 2025–26, eligible small business entities using simplified depreciation can deduct assets costing less than $20,000 when first used or installed ready for taxable use. The permanent threshold was enacted on 26 August 2026; schedule 2 commences on 1 October 2026 and applies to specified first use or installation from 1 July 2026. Tax Reform No. 2 Act 2026, schedules 1–2. | ITAA 1997 Subdivision 328-D |
| Small business entity threshold | Aggregated turnover < $10M | ITAA 1997 s 328-110 |
| Cents per km rate (motor vehicle) | 88 cents per km (2024-25 and 2025-26); 91 cents (2026-27) | ATO cents per kilometre method |
| Cents per km cap | 5,000 business km per car per year | ITAA 1997 s 28-25 |
| Home office fixed rate | 70 cents per hour (2024-25 through 2026-27; 67c applied 2022-23 and 2023-24) | ATO PCG 2023/1 |
| Trading stock threshold (change in value) | $5,000: if an eligible small business entity reasonably estimates that the difference between opening and closing stock is $5,000 or less, the taxpayer can elect not to do a stocktake | ITAA 1997 s 328-285 |
| Prepaid expenses (SBE) | Immediately deductible if the service period is 12 months or less and ends on or before 30 June of the following year | ITAA 1936 ss 82KZL and 82KZM |
Key deduction categories on the schedule
| Schedule area | Category | Notes |
|---|---|---|
| P8 expenses | Motor vehicle expenses | Use the year-specific expense label and method |
| P8 expenses | Depreciation | Reconcile to the depreciation schedule |
| P8 expenses | Repairs and maintenance | Distinguish capital expenditure |
| P8 expenses | Interest | Use the correct domestic/overseas label and business portion |
| P8 expenses | Rent | Business premises; assess home occupancy separately |
| P8 expenses | Other expenses | Classify into specific P8 expense labels where available |
P9 records business loss activity details, not motor expenses. P10 and later items request separate business information, not a sequence of ordinary expense categories. Use the issued year’s form. ATO 2025 business schedule instructions establish this P8/P9 distinction. Verify the issued 2026 form before transferring labels.
Two methods available for sole traders:
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This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as a CPA, EA, tax attorney, or equivalent licensed practitioner in your jurisdiction) before filing or acting upon.
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Contributed by Ryan Duguid.
Contributed by Ryan Duguid.
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