Not tax advice. Computation tools only. Have a professional review before filing.
openaccountants/skills/au-individual-return.md
au-individual-return.md498 lines23.8 KB
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1---
2name: au-individual-return
3description: >
4 Use this skill whenever asked about Australian individual income tax for sole traders. Trigger on phrases like "how much tax do I pay in Australia", "Australian tax return", "sole trader tax", "ABN tax", "Medicare levy", "LITO", "PAYG", "tax brackets Australia", "BAS", "instant asset write-off", "home office deduction", "HELP repayment", "HECS debt", "small business income tax offset", "motor vehicle deduction", or any question about filing or computing income tax for an Australian sole trader. Covers 2024-25 Stage 3 tax rates, Medicare levy and surcharge, LITO, business income computation, allowable deductions, depreciation, instant asset write-off, small business income tax offset, HELP/HECS repayments, and final tax computation. ALWAYS read this skill before touching any Australian income tax work.
5version: 2.0
6jurisdiction: AU
7tax_year: 2024-25
8category: international
9depends_on:
10 - income-tax-workflow-base
11---
12 
13# Australia Individual Income Tax -- Sole Trader Skill v2.0
14 
15---
16 
17## Section 1 -- Quick Reference
18 
19| Field | Value |
20|---|---|
21| Country | Australia |
22| Tax | Income tax + Medicare levy + HELP repayments (if applicable) |
23| Currency | AUD only |
24| Tax year | 1 July 2024 -- 30 June 2025 |
25| Primary legislation | Income Tax Assessment Act 1997 (ITAA 1997); Income Tax Assessment Act 1936 (ITAA 1936) |
26| Supporting legislation | Tax Administration Act 1953; Medicare Levy Act 1986; Higher Education Support Act 2003 |
27| Tax authority | Australian Taxation Office (ATO) |
28| Filing portal | myTax (via myGov) or registered tax agent |
29| Filing deadline | 31 October 2025 (self-lodged); May 2026 (tax agent) |
30| Contributor | Open Accountants Community |
31| Validated by | Pending -- Australian CPA/CA sign-off required |
32| Skill version | 2.0 |
33 
34### Tax Rates -- Resident Individual (2024-25, Stage 3) [T1]
35 
36| Taxable Income (AUD) | Rate | Tax on This Band |
37|---|---|---|
38| 0 -- 18,200 | 0% | Tax-free threshold |
39| 18,201 -- 45,000 | 16% | Max $4,288 |
40| 45,001 -- 135,000 | 30% | Max $27,000 |
41| 135,001 -- 190,000 | 37% | Max $20,350 |
42| 190,001+ | 45% | |
43 
44### Medicare Levy [T1]
45 
46| Item | Value |
47|---|---|
48| Rate | 2% of taxable income |
49| Low-income threshold (single) | $26,000 (no levy below; phase-in to $32,500) |
50| Low-income threshold (family) | $43,846 + $4,027 per dependent child |
51| Surcharge (no private hospital cover) | Additional 1%-1.5% if income over $93,000 (single) |
52 
53### Low Income Tax Offset (LITO) [T1]
54 
55| Taxable Income (AUD) | LITO |
56|---|---|
57| Up to $45,000 | $700 |
58| $45,001 -- $66,667 | Reduces by 5c per $1 over $45,000 |
59| $66,668+ | $0 |
60 
61### Small Business Income Tax Offset (SBITO) [T1]
62 
63| Item | Value |
64|---|---|
65| Rate | 16% of income tax on business income |
66| Cap | $1,000 |
67| Eligibility | Aggregated turnover under $5 million (individuals and trusts only) |
68 
69### Key Deduction Rates [T1]
70 
71| Item | Rate |
72|---|---|
73| Home office -- fixed rate method | 67 cents per hour |
74| Motor vehicle -- cents per km method | 88 cents per km (max 5,000 km) |
75| Instant asset write-off (small business) | $20,000 threshold (assets under $20,000 immediately deductible) |
76| Superannuation (deductible personal contribution) | Up to $30,000 concessional cap |
77 
78### Conservative Defaults [T1]
79 
80| Ambiguity | Default |
81|---|---|
82| Unknown residency status | Australian resident (but STOP if genuinely unclear) |
83| Unknown business-use % (vehicle, phone, home) | 0% deduction |
84| Unknown expense category | Not deductible |
85| Unknown depreciation effective life | Use ATO's Table of Depreciation |
86| Unknown private health insurance status | No cover (Medicare levy surcharge may apply) |
87| Unknown aggregated turnover | Over $10 million (no small business concessions) |
88 
89---
90 
91## Section 2 -- Required Inputs and Refusal Catalogue
92 
93### Required Inputs
94 
95**Minimum viable** -- bank statement for the full financial year (1 July to 30 June), confirmation of ABN/TFN, and whether the taxpayer is an Australian resident.
96 
97**Recommended** -- all tax invoices issued, purchase receipts, PAYG payment summaries or income statements (via myGov), prior year tax return, BAS lodgments.
98 
99**Ideal** -- complete bookkeeping records, depreciation schedule, motor vehicle logbook, home office hours log, private health insurance statement, HELP debt balance.
100 
101### Refusal Catalogue
102 
103**R-AU-1 -- Companies and trusts.** "Companies lodge company tax returns. Trusts lodge trust returns. This skill covers individual sole traders only."
104 
105**R-AU-2 -- Non-residents.** "Non-resident tax rates and rules differ significantly. Out of scope."
106 
107**R-AU-3 -- Capital gains tax events.** "CGT events require specialised computation (cost base, discounts, exemptions). Out of scope."
108 
109**R-AU-4 -- Complex depreciation (effective life disputes).** "Where the ATO effective life is contested or the asset has no published rate, escalate."
110 
111**R-AU-5 -- Partnership or PSI (Personal Services Income).** "PSI rules and partnership allocations require separate analysis. Escalate."
112 
113---
114 
115## Section 3 -- Transaction Pattern Library
116 
117### 3.1 Income Patterns (Credits on Bank Statement)
118 
119| Pattern | Tax Label | Treatment | Notes |
120|---|---|---|---|
121| ABN INCOME, CLIENT PAYMENT, [client name] | Business income (Item P8) | Gross business income | Core sole trader income |
122| STRIPE PAYOUT, STRIPE TRANSFER | Business income | Revenue | Match to underlying invoices |
123| PAYPAL TRANSFER | Business income | Revenue | Report gross before fees |
124| DIRECT CREDIT [client name] | Business income | Revenue | Bank transfer from client |
125| INTEREST, SAVINGS INTEREST | Interest income (Item 10) | NOT business income | Report separately as interest |
126| DIVIDEND, DISTRIBUTION | Dividend income (Item 11) | NOT business income | Report separately. Include franking credits. |
127| FRANKING CREDIT | Gross-up dividend | Add to assessable income | Franking credit is both income and tax offset |
128| ATO REFUND, TAX REFUND | EXCLUDE | Not income | Prior year tax refund |
129| CENTRELINK, JOBSEEKER, YOUTH ALLOWANCE | Government payment (Item 6) | May be taxable | Check specific payment type |
130| SUPERANNUATION (lump sum or pension) | Item 7 or 8 | Check | Depends on age and components |
131| OWN TRANSFER, SAVINGS | EXCLUDE | Internal | Between own accounts |
132| RENTAL INCOME | Rental income (Item 21) | NOT business income | Separate rental schedule |
133 
134### 3.2 Expense Patterns (Debits on Bank Statement)
135 
136| Pattern | Deduction Category | Tier | Treatment |
137|---|---|---|---|
138| RENT, OFFICE RENT, SERVICED OFFICE | Business expense -- occupancy | T1 | Fully deductible if dedicated business premises |
139| HOME OFFICE, WORK FROM HOME | Home office deduction (D5) | T2 | Fixed rate 67c/hr OR actual cost method. See Tier 2. |
140| PETROL, FUEL, CALTEX, BP, SHELL, AMPOL | Motor vehicle (D1) | T2 | Cents/km (88c, max 5,000 km) OR logbook method |
141| CAR INSURANCE, REGO, SERVICE | Motor vehicle | T2 | Only under logbook method (not cents/km) |
142| TOLL, CITYLINK, LINKT | Motor vehicle or travel | T1 | Business travel tolls: deductible under either method |
143| FLIGHT, QANTAS, VIRGIN, JETSTAR | Travel (D2) | T1 | Fully deductible if business travel |
144| ACCOMMODATION, HOTEL | Travel | T1 | Deductible if business travel with overnight stay |
145| MEALS (business travel, overnight) | Travel | T1 | Reasonable amount while travelling overnight |
146| MEALS (client entertainment) | NOT deductible | T1 | Entertainment: NOT deductible for sole traders |
147| INSURANCE, PROFESSIONAL INDEMNITY | Business expense -- insurance | T1 | Fully deductible |
148| INCOME PROTECTION INSURANCE | Deduction (D15) | T1 | Fully deductible (personal deduction, not business) |
149| ACCOUNTING, TAX AGENT, BAS AGENT | Cost of managing tax affairs (D10) | T1 | Fully deductible |
150| OFFICE SUPPLIES, OFFICEWORKS | Business expense | T1 | Fully deductible |
151| SOFTWARE, SUBSCRIPTION, XERO, MYOB | Business expense -- IT | T1 | Fully deductible |
152| GOOGLE ADS, META ADS, FACEBOOK ADS | Business expense -- advertising | T1 | Fully deductible |
153| PHONE, TELSTRA, OPTUS, VODAFONE | Business expense -- telecom | T2 | Business portion only |
154| INTERNET, NBN | Business expense -- telecom | T2 | Business portion only (or included in home office 67c rate) |
155| TRAINING, COURSE, SELF-EDUCATION | Self-education (D4) | T1 | Deductible if directly related to current income-producing activity. NOT deductible if for new career. |
156| COMPUTER, LAPTOP, EQUIPMENT (under $20,000) | Instant asset write-off | T1 | Immediately deductible if small business entity and cost < $20,000 |
157| COMPUTER, LAPTOP, EQUIPMENT (over $20,000) | Depreciation (D2 business) | T1 | Depreciate over effective life per ATO table |
158| SUPER CONTRIBUTION, SUNSUPER, AUSTRALIAN SUPER | Deduction (Item D12) | T1 | Personal deductible super contribution up to $30,000 concessional cap. Must lodge notice of intent. |
159| ATO TAX, INCOME TAX, PAYG INSTALMENT | EXCLUDE | Not deductible | Tax payments are not deductions |
160| GST PAYMENT, BAS PAYMENT | EXCLUDE from income tax | T1 | GST is separate. Report net of GST if registered. |
161| PRIVATE HEALTH, MEDIBANK, BUPA, NIB, HCF | NOT a deduction (but affects MLS) | T1 | Private health insurance is NOT tax deductible. But having it avoids Medicare Levy Surcharge. PHI rebate claimed separately. |
162| PERSONAL, GROCERY, ENTERTAINMENT | EXCLUDE | Not deductible | Personal expenses |
163| DONATION, CHARITY, DGR | Tax offset (Item D9) | T1 | Deductible if to a deductible gift recipient (DGR). Must be $2+ and genuinely a gift. |
164 
165### 3.3 SaaS Subscriptions
166 
167| Pattern | Treatment | Notes |
168|---|---|---|
169| GOOGLE WORKSPACE, MICROSOFT 365, ADOBE | Fully deductible business expense | Operating expense |
170| SLACK, ZOOM, NOTION, FIGMA, GITHUB | Fully deductible | Same |
171| AWS, HEROKU, DIGITAL OCEAN | Fully deductible | Hosting costs |
172| CANVA (AU entity) | Fully deductible | Australian company |
173| XERO, MYOB | Fully deductible (cost of managing tax affairs or business expense) | Accounting software |
174| SPOTIFY, NETFLIX | NOT deductible | Personal entertainment |
175 
176### 3.4 Internal Transfers and Exclusions
177 
178| Pattern | Treatment | Notes |
179|---|---|---|
180| TRANSFER, SAVINGS, TERM DEPOSIT | EXCLUDE | Internal movement |
181| MORTGAGE, HOME LOAN | EXCLUDE (or home office %) | Personal. Home office actual costs method only. |
182| ATM, CASH | T2 -- ask | Default exclude |
183| HECS REPAYMENT, HELP | NOT a deduction | Compulsory repayment is not a tax deduction |
184 
185---
186 
187## Section 4 -- Worked Examples
188 
189### Example 1 -- Standard Sole Trader (Graphic Designer)
190 
191**Input:** ABN income AUD 92,000. Business expenses: software AUD 3,600, advertising AUD 1,200, accounting AUD 1,100, office supplies AUD 800. Home office 1,200 hours at 67c/hr. Car 4,000 business km at 88c/km. No other income. No HELP debt. Has PHI.
192 
193**Computation:**
194- Business income: AUD 92,000
195- Expenses: 3,600 + 1,200 + 1,100 + 800 = AUD 6,700
196- Home office: 1,200 x 0.67 = AUD 804
197- Motor vehicle: 4,000 x 0.88 = AUD 3,520
198- Total deductions: 6,700 + 804 + 3,520 = AUD 11,024
199- Taxable income: 92,000 - 11,024 = AUD 80,976
200- Tax: 0 + 4,288 + (80,976 - 45,000) x 30% = 4,288 + 10,793 = AUD 15,081
201- Medicare: 80,976 x 2% = AUD 1,620
202- LITO: $0 (income > $66,667)
203- SBITO: 16% x (tax attributable to business income) -- business is 100% of income, so 16% x 15,081 = 2,413, capped at AUD 1,000
204- Final tax: 15,081 + 1,620 - 1,000 = AUD 15,701
205 
206### Example 2 -- Instant Asset Write-Off
207 
208**Input:** Small business entity (turnover < $10M). Purchases laptop AUD 2,800 and monitor AUD 950. Both under $20,000.
209 
210**Classification:** Both items are immediately deductible under the instant asset write-off. Total deduction: AUD 3,750 in the year of purchase. No depreciation schedule needed.
211 
212### Example 3 -- Motor Vehicle (Logbook vs Cents/Km)
213 
214**Input:** Total km: 20,000. Business km: 12,000 (60%). Car costs: fuel AUD 4,800, insurance AUD 1,600, rego AUD 800, service AUD 1,200, depreciation AUD 4,000. Total AUD 12,400.
215 
216**Computation:**
217- Cents/km: min(12,000, 5,000) x $0.88 = AUD 4,400 (capped at 5,000 km)
218- Logbook: 12,400 x 60% = AUD 7,440
219- Logbook method is significantly more beneficial. But requires a valid logbook kept for a continuous 12-week period.
220- [T2] Flag: confirm logbook exists and is valid.
221 
222### Example 4 -- Home Office (Fixed Rate vs Actual)
223 
224**Input:** Works from home 1,600 hours/year. Dedicated office in 3-bedroom house (1/4 area). Electricity AUD 2,400, internet AUD 1,200, phone AUD 960 (80% business), depreciation on furniture AUD 400.
225 
226**Computation:**
227- Fixed rate: 1,600 x $0.67 = AUD 1,072 (covers electricity, gas, phone, internet, stationery, depreciation of furniture)
228- Actual cost: electricity 1/4 x AUD 2,400 = AUD 600. Internet 80% x AUD 1,200 = AUD 960. Phone 80% x AUD 960 = AUD 768. Depreciation AUD 400. Total = AUD 2,728.
229- Actual method is significantly better here.
230- Under fixed rate: only computer/printer depreciation and occupancy expenses (rent, mortgage interest, rates, insurance) can be claimed additionally. Under actual: each item claimed individually.
231- [T2] Flag: confirm method choice and occupancy costs if actual.
232 
233---
234 
235## Section 5 -- Tier 1 Rules (When Data Is Clear)
236 
237### 5.1 Business Income [T1]
238 
239**Legislation:** ITAA 1997 Div 6
240 
241All amounts derived from carrying on a business. If GST-registered, report net of GST. If not registered, report gross.
242 
243### 5.2 General Deduction [T1]
244 
245**Legislation:** ITAA 1997 s8-1
246 
247A deduction for any loss or outgoing to the extent it is incurred in gaining or producing assessable income, or necessarily incurred in carrying on a business. Must not be private, domestic, or capital in nature.
248 
249### 5.3 Depreciation [T1]
250 
251**Legislation:** ITAA 1997 Div 40
252 
253| Method | Calculation |
254|---|---|
255| Diminishing value | Base value x (days held / 365) x (200% / effective life) |
256| Prime cost (straight line) | Cost x (days held / 365) x (100% / effective life) |
257 
258Small business entity (turnover < $10M): can use simplified depreciation -- pool all assets over $20,000 at 15% first year, 30% thereafter.
259 
260**Instant asset write-off:** Assets costing less than $20,000 (2024-25) can be immediately deducted by small business entities. This threshold may change each year -- confirm for current year.
261 
262### 5.4 Superannuation [T1]
263 
264Personal deductible contributions up to $30,000 concessional cap (combined with employer contributions if also employed). Must lodge a valid "Notice of intent to claim" with the super fund AND receive acknowledgment BEFORE lodging the tax return or rolling over.
265 
266### 5.5 HELP/HECS Repayment [T1]
267 
268| Repayment Income (2024-25) | Rate |
269|---|---|
270| Below $54,435 | 0% |
271| $54,435 -- $62,850 | 1% |
272| $62,851 -- $66,620 | 2% |
273| $66,621 -- $70,618 | 2.5% |
274| ... (progressive to) | ... |
275| $151,201+ | 10% |
276 
277Repayment income = taxable income + reportable fringe benefits + net investment losses + reportable super. HELP repayments are NOT deductible.
278 
279### 5.6 Filing and Penalties [T1]
280 
281| Item | Value |
282|---|---|
283| Self-lodge deadline | 31 October 2025 |
284| Tax agent deadline | Varies (typically March-May 2026) |
285| Failure to lodge on time | $313 per 28-day period, up to 5 periods ($1,565 max) |
286| Shortfall penalty (reasonable care not taken) | 25% of shortfall |
287| Shortfall penalty (recklessness) | 50% of shortfall |
288| General Interest Charge (GIC) | ~11% annually (varies quarterly) |
289 
290---
291 
292## Section 6 -- Tier 2 Catalogue (Reviewer Judgement Required)
293 
294### 6.1 Home Office [T2]
295 
296**Two methods (from 1 July 2022):**
297 
298| Method | What It Covers | Additional Claims |
299|---|---|---|
300| Fixed rate (67c/hr) | Electricity, gas, phone, internet, stationery, computer/printer ink | Separately claim: technology depreciation (computer, monitor), occupancy costs (if dedicated room), cleaning |
301| Actual cost | Each expense claimed individually at actual business % | No fixed rate component |
302 
303Under either method: must have records of hours worked from home. Fixed rate: can use any reasonable record. Actual: need receipts and usage records.
304 
305Occupancy expenses (rent, mortgage interest, rates, home insurance, land tax) are ONLY deductible if you have a dedicated area set aside exclusively as a place of business. These are separate from running expenses.
306 
307**Flag for reviewer:** Confirm method, hours, and whether occupancy expenses apply.
308 
309### 6.2 Motor Vehicle [T2]
310 
311| Method | How It Works | Records |
312|---|---|---|
313| Cents per km (88c) | Max 5,000 business km. No receipts needed. | Reasonable estimate of business km |
314| Logbook | Business % of actual costs including depreciation | 12-week continuous logbook, valid for 5 years |
315 
316Cannot claim both. Parking, tolls, and roadside assistance are separate and deductible under either method for business trips.
317 
318**Flag for reviewer:** Confirm method and km/logbook records.
319 
320### 6.3 Private Health Insurance (Medicare Levy Surcharge) [T2]
321 
322If income over $93,000 (single) and no appropriate private hospital cover, Medicare levy surcharge applies:
323 
324| Income | MLS Rate |
325|---|---|
326| $93,001 -- $108,000 | 1% |
327| $108,001 -- $144,000 | 1.25% |
328| $144,001+ | 1.5% |
329 
330PHI rebate: income-tested offset that reduces PHI premiums. Claimed via reduced premiums or tax offset.
331 
332**Flag for reviewer:** Confirm PHI status and income level.
333 
334### 6.4 Personal Services Income (PSI) [T2]
335 
336If income is mainly a reward for personal efforts/skills and not from conducting a personal services business, PSI rules limit deductions. Cannot claim rent, mortgage interest, certain home office costs against PSI.
337 
338**Flag for reviewer:** Confirm whether PSI rules apply (results test, unrelated clients test, employment test, business premises test).
339 
340---
341 
342## Section 7 -- Excel Working Paper Template
343 
344```
345AUSTRALIAN INDIVIDUAL TAX RETURN -- Working Paper
346Tax Year: 2024-25
347 
348A. INCOME
349 A1. Business income (ABN income) ___________
350 A2. Employment income (per income statement) ___________
351 A3. Interest income ___________
352 A4. Dividend income (grossed up with franking) ___________
353 A5. Rental income (net) ___________
354 A6. Other income ___________
355 A7. TOTAL ASSESSABLE INCOME ___________
356 
357B. DEDUCTIONS
358 B1. Business expenses (direct) ___________
359 B2. Home office (67c/hr or actual) ___________
360 B3. Motor vehicle (88c/km or logbook) ___________
361 B4. Travel (flights, accommodation) ___________
362 B5. Self-education ___________
363 B6. Depreciation / instant asset write-off ___________
364 B7. Personal super contributions ___________
365 B8. Income protection insurance ___________
366 B9. Cost of managing tax affairs ___________
367 B10. Donations (DGR) ___________
368 B11. Other deductions ___________
369 B12. TOTAL DEDUCTIONS ___________
370 
371C. TAXABLE INCOME (A7 - B12) ___________
372 
373D. TAX COMPUTATION
374 D1. Tax on taxable income (Stage 3 rates) ___________
375 D2. Medicare levy (2%) ___________
376 D3. Medicare levy surcharge (if applicable) ___________
377 D4. HELP/HECS repayment (if applicable) ___________
378 D5. Gross tax ___________
379 D6. Less: LITO ___________
380 D7. Less: SBITO (16%, max $1,000) ___________
381 D8. Less: Franking credits offset ___________
382 D9. Less: PHI rebate offset ___________
383 D10. Less: PAYG instalments paid ___________
384 D11. Less: PAYG withholding (employment) ___________
385 D12. TAX DUE / (REFUND) ___________
386 
387REVIEWER FLAGS:
388 [ ] Residency status confirmed?
389 [ ] Home office method and hours verified?
390 [ ] Motor vehicle method confirmed?
391 [ ] Instant asset write-off eligibility (SBE < $10M)?
392 [ ] Super contribution notice of intent lodged?
393 [ ] PHI status confirmed (MLS)?
394 [ ] HELP debt status confirmed?
395 [ ] All T2 items flagged?
396```
397 
398---
399 
400## Section 8 -- Bank Statement Reading Guide
401 
402### Australian Bank Statement Formats
403 
404| Bank | Format | Key Fields |
405|---|---|---|
406| CBA, ANZ, Westpac, NAB | CSV, PDF | Date, Description, Debit, Credit, Balance |
407| Macquarie, Suncorp, Bendigo | CSV | Date, Narrative, Amount |
408| Up, ING, Ubank | CSV | Date, Description, Amount |
409| Wise, Revolut | CSV | Date, Description, Amount, Currency |
410 
411### Key Australian Banking Terms
412 
413| Term | Classification Hint |
414|---|---|
415| Direct Credit | Incoming payment -- could be income |
416| Direct Debit | Regular outgoing -- likely expense |
417| EFTPOS | Point-of-sale purchase |
418| BPAY | Bill payment |
419| Osko / PayID | Fast payment -- check direction |
420| ATM | Cash withdrawal -- ask purpose |
421| Interest Paid | Income -- report separately |
422| Dividend | Income -- check franking |
423 
424---
425 
426## Section 9 -- Onboarding Fallback
427 
428```
429ONBOARDING QUESTIONS -- AUSTRALIA INDIVIDUAL RETURN
4301. Are you an Australian resident for tax purposes?
4312. Do you have an active ABN and TFN?
4323. Are you registered for GST?
4334. What is your aggregated turnover? (for small business concessions)
4345. Do you work from home? How many hours per year? Method preference (67c or actual)?
4356. Do you use a vehicle for business? Method preference (cents/km or logbook)?
4367. Any assets purchased this year? Cost?
4378. Do you have private health insurance? Full year?
4389. Do you have a HELP/HECS debt?
43910. Are you also employed (PAYG income)?
44011. Any personal super contributions made?
44112. Prior year tax return / depreciation schedule available?
442```
443 
444---
445 
446## Section 10 -- Reference Material
447 
448### Key Legislation
449 
450| Topic | Reference |
451|---|---|
452| Assessable income | ITAA 1997 s6-1, s6-5 |
453| General deduction | ITAA 1997 s8-1 |
454| Capital vs revenue | ITAA 1997 s8-1(2)(a) |
455| Depreciation | ITAA 1997 Div 40 |
456| Small business entity | ITAA 1997 Div 328 |
457| Instant asset write-off | ITAA 1997 s328-180 |
458| Home office | ATO Practical Compliance Guideline PCG 2023/1 |
459| Motor vehicle | ITAA 1997 s28-13, s28-15 |
460| Superannuation deduction | ITAA 1997 Div 290 |
461| Medicare levy | Medicare Levy Act 1986 |
462| HELP repayments | Higher Education Support Act 2003 |
463| LITO | ITAA 1997 s61-1 |
464| SBITO | ITAA 1997 s328-375 |
465 
466### Interaction with GST [T1]
467 
468| Scenario | Income Tax Treatment |
469|---|---|
470| GST collected on sales (registered) | NOT income. Report net of GST. |
471| GST credits (ITC) recovered | NOT an expense. Report net of GST. |
472| Not registered for GST | GST paid on purchases IS part of the cost. Report gross. |
473| GST on private portion | Non-claimable GST is part of cost. |
474 
475---
476 
477## PROHIBITIONS
478 
479- NEVER allow private or domestic expenses as business deductions
480- NEVER allow entertainment expenses for sole traders (not deductible)
481- NEVER claim more than 5,000 km under the cents-per-km method
482- NEVER claim occupancy expenses (rent, mortgage interest) for home office unless dedicated area exclusively for business
483- NEVER forget to lodge notice of intent for personal super contributions
484- NEVER claim HELP repayments as a deduction
485- NEVER claim private health insurance premiums as a deduction
486- NEVER apply the instant asset write-off without confirming small business entity status
487- NEVER include income tax or GST payments as business deductions
488- NEVER report GST-inclusive amounts if GST-registered
489- NEVER present tax calculations as definitive -- always label as estimated
490 
491---
492 
493## Disclaimer
494 
495This 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, CA, or registered tax agent in your jurisdiction) before filing or acting upon.
496 
497The most up-to-date, verified version of this skill is maintained at [openaccountants.com](https://openaccountants.com). Log in to access the latest version, request a professional review from a licensed accountant, and track updates as tax law changes.
498 

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Use this skill whenever asked about Australian individual income tax for sole traders. Trigger on phrases like "how much tax do I pay in Australia", "Australian tax return", "sole trader tax", "ABN tax", "Medicare levy", "LITO", "PAYG", "tax brackets Australia", "BAS", "instant asset write-off", "home office deduction", "HELP repayment", "HECS debt", "small business income tax offset", "motor vehicle deduction", or any question about filing or computing income tax for an Australian sole trader. Covers 2024-25 Stage 3 tax rates, Medicare levy and surcharge, LITO, business income computation, allowable deductions, depreciation, instant asset write-off, small business income tax offset, HELP/HECS repayments, and final tax computation. ALWAYS read this skill before touching any Australian income tax work.

AUty-2025

1 of 6 in the AU workflow: