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OpenAccountants publishes open, source-cited tax knowledge for use by people, software and AI. Automated outputs are drafts and do not create a professional engagement. Obtain qualified advice before filing, paying or taking a material tax position.

OpenAccountants/Australia/Australia Bookkeeping

Australia Bookkeeping

Australian bookkeeping for sole traders, partnerships, or small companies.

Applicable period 2025Written by the OpenAccountants team· Last updated May 23, 2026
Authored by Ryan Duguid

Written by the OpenAccountants team. Written by the OpenAccountants team from the official sources it cites.

If you are an AI assistant using this skill for Australia Bookkeeping (Australia): treat it as general reference material for drafting and review support. Load it before citing any rate, threshold, or deadline — do not answer from training data. Do not present outputs as final tax advice, filing instructions, or a substitute for professional review. Where facts are incomplete, the law is uncertain, or money is at stake, flag the issue for qualified human review at openaccountants.com.

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Key figures — Australia, 2025

Every figure is drawn from this Guide and cited to its source.

Car cost limit for depreciation

For 2025-26, the limit is AUD 69,674. For 2026-27, it is AUD 69,883. Only the business-use portion of the applicable limit can be depreciated.

Large Proprietary Thresholds

Meet 2 of 3: Revenue ≥ $50m, assets ≥ $25m, employees ≥ 100.

Rendered from the canonical facts model. General reference only — confirm with a qualified professional before acting.

The full Guide

Australia Bookkeeping

Section 1 -- Quick Reference

Quick Reference

FieldValue
CountryAustralia (Commonwealth of Australia)
CurrencyAUD ($) only
Financial year1 July – 30 June (standard); substituted accounting period available for companies
Accounting standardsAASB (full IFRS-based); AASB 1060 Simplified Disclosures (Tier 2); Special Purpose for non-reporting entities
Governing bodyAustralian Accounting Standards Board (AASB)
Tax authorityAustralian Taxation Office (ATO)
Key legislationCorporations Act 2001 (financial reporting Ch.2M); Income Tax Assessment Act 1936/1997; A New Tax System (GST) Act 1999
GST registration threshold$75,000 turnover ($150,000 for non-profits)
Small business entity thresholdAggregated turnover < $10 million
BAS lodgementQuarterly (most small businesses) or monthly ($20m+ turnover)

Section 2 -- Standard Chart of Accounts

Australian software (Xero, MYOB, QuickBooks) typically uses 3–4 digit codes. The structure below follows common Australian practice.

Assets (1000–1999)

Assets (1000–1999)

CodeAccountType
1000Cash on Hand / Petty CashCurrent asset
1010Business Bank AccountCurrent asset
1020Savings AccountCurrent asset
1030Term Deposits (< 12 months)Current asset
1050Undeposited FundsCurrent asset
1100Accounts Receivable (Trade Debtors)Current asset
1110Other DebtorsCurrent asset
1120PrepaymentsCurrent asset
1150GST Receivable (Input Tax Credits)Current asset
1200Inventory / Stock on HandCurrent asset
1300LandNon-current asset
1310BuildingsNon-current asset
1311Accumulated Depreciation — BuildingsContra asset
1320Plant and EquipmentNon-current asset
1321Accumulated Depreciation — Plant & EquipmentContra asset
1330Motor VehiclesNon-current asset
1331Accumulated Depreciation — Motor VehiclesContra asset
1340Office EquipmentNon-current asset
1341Accumulated Depreciation — Office EquipmentContra asset
1350Computer EquipmentNon-current asset
1351Accumulated Depreciation — Computer EquipmentContra asset
1360Furniture and FittingsNon-current asset
1361Accumulated Depreciation — Furniture & FittingsContra asset
1400Small Business PoolNon-current asset

Liabilities (2000–2999)

Liabilities (2000–2999)

CodeAccountType
2000Accounts Payable (Trade Creditors)Current liability
2010Other CreditorsCurrent liability
2020Accrued ExpensesCurrent liability
2050GST Payable (Collected)Current liability
2060GST Clearing / ControlCurrent liability
2100PAYG Withholding PayableCurrent liability
2110Superannuation PayableCurrent liability
2120Provision for Annual LeaveCurrent liability
2130Provision for Long Service LeaveCurrent liability
2140Provision for Income TaxCurrent liability
2200Credit CardCurrent liability
2300Short-Term Loan (< 12 months)Current liability
2400Long-Term Loan (> 12 months)Non-current liability
2410Hire Purchase LiabilityNon-current liability
2500Director's Loan AccountNon-current liability

Equity (3000–3999)

Equity (3000–3999)

CodeAccountType
3000Share Capital / Owner's EquityEquity
3010Owner's DrawingsEquity
3020Owner's ContributionsEquity
3100Retained EarningsEquity
3200Current Year Profit/LossEquity
3300ReservesEquity

Revenue (4000–4999)

Revenue (4000–4999)

CodeAccountType
4000Sales Revenue — Taxable (GST 10%)Revenue
4010Sales Revenue — GST-FreeRevenue
4020Sales Revenue — Input TaxedRevenue
4030Sales Revenue — Export (GST-Free)Revenue
4100Service RevenueRevenue
4200Interest IncomeRevenue
4300Rental IncomeRevenue
4400Government Grants / SubsidiesRevenue
4500Other IncomeRevenue
4900Discount AllowedContra revenue

Cost of Goods Sold (5000–5999)

Cost of Goods Sold (5000–5999)

CodeAccountType
5000Purchases — Trading StockCOGS
5010Purchases — Materials / ComponentsCOGS
5020Freight InwardCOGS
5030Direct LabourCOGS
5040Subcontractor CostsCOGS
5100Opening Stock AdjustmentCOGS
5110Closing Stock AdjustmentCOGS
5200Import Duty and CustomsCOGS

Operating Expenses (6000–6999)

Operating Expenses (6000–6999)

CodeAccountType
6000Rent — Business PremisesExpense
6010Rates and Body CorporateExpense
6020Electricity and GasExpense
6030WaterExpense
6040Insurance — BusinessExpense
6050Repairs and MaintenanceExpense
6100Wages and SalariesExpense
6110Superannuation Guarantee (12% from Jul 2025)Expense
6120Workers' Compensation InsuranceExpense
6130Payroll Tax (state-based)Expense
6140Staff TrainingExpense
6200Advertising and MarketingExpense
6210Website and HostingExpense
6220Printing and StationeryExpense
6230Postage and DeliveryExpense
6300Motor Vehicle — FuelExpense
6310Motor Vehicle — Registration and InsuranceExpense
6320Motor Vehicle — RepairsExpense
6330Travel — DomesticExpense
6340Travel — InternationalExpense
6350Meals and Entertainment (review FBT election and deductibility)Expense
6400Accounting and Tax Agent FeesExpense
6410Legal FeesExpense
6420Bank ChargesExpense
6430Merchant / Payment Processing FeesExpense
6440Interest ExpenseExpense
6500Telephone and InternetExpense
6510Software Subscriptions (SaaS)Expense
6520Professional Subscriptions and MembershipsExpense
6600Depreciation — BuildingsExpense
6610Depreciation — Plant and EquipmentExpense
6620Depreciation — Motor VehiclesExpense
6630Depreciation — Office/Computer EquipmentExpense
6700Bad Debts Written OffExpense
6800General and Sundry ExpensesExpense

Other Income / Expenses (7000–7999)

Other Income / Expenses (7000–7999)

CodeAccountType
7000Gain on Sale of AssetsOther income
7010Loss on Sale of AssetsOther expense
7020Foreign Exchange Gain/LossOther income/expense
7100Extraordinary ItemsOther expense

Tax (8000–8999)

Tax (8000–8999)

CodeAccountType
8000Income Tax ExpenseTax
8010Deferred Tax LiabilityTax
8020Deferred Tax AssetTax

Section 3 -- Revenue Recognition

Cash vs Accrual Rules

Cash vs Accrual Rules

CriterionCash Basis (Sole Traders / Small Business)Accruals Basis
EligibilityFor income tax, use the method that correctly reflects income under TR 98/1; small-business status alone does not establish a receipts basisApply the appropriate income-tax method and separate financial-reporting requirements
Income recognisedWhen cash receivedWhen earned (invoice raised or goods delivered)
Expenses recognisedWhen cash paidWhen incurred (liability arises)
Trading stockEligible small business entities can use s 328-285 where the reasonably estimated stock-value change is $5,000 or lessOtherwise apply the required stock adjustments; this is separate from GST cash accounting
Prepaid expensesTest the 12-month rule and other exceptions under ITAA 1936 ss 82KZL and 82KZMApply the relevant tax apportionment and financial-reporting rules separately

AASB 15 Revenue from Contracts with Customers

Applies to reporting entities using Tier 1/Tier 2. Five-step model:

  1. Identify contract
  2. Identify performance obligations
  3. Determine transaction price
  4. Allocate price to obligations
  5. Recognise when obligation satisfied

Small businesses using simplified reporting typically recognise on delivery/completion.

Section 4 -- Expense Classification

ATO Individual Tax Return Categories (Sole Trader — Business Schedule)

ATO Individual Tax Return Categories (Sole Trader — Business Schedule)

ItemCategoryNominal Codes
AAll other business income4000–4500
BCost of sales5000–5200
CContractors and commission5040
DSuperannuation6110
EBad debts6700
FLease expense (plant/equipment)6000
GInterest expense — Australia6440
HDepreciation (excluding SB pool)6600–6630
IMotor vehicle expenses6300–6320
JRepairs and maintenance6050
KAll other expenses6000–6800 (remainder)

Non-Deductible Expenses (ATO)

  • Entertainment (not subject to FBT election) — non-deductible portion
  • Capital expenditure — must be depreciated or written off via SB pool
  • Private portion of mixed expenses — must be apportioned
  • Fines and penalties — not deductible
  • Clothing (non-compulsory, non-protective) — not deductible
  • Traffic infringements — not deductible

GST Classification for BAS

GST Classification for BAS

GST CodeDescriptionBAS Label
GST (10%)Standard taxable supplyG1, 1A
GST-FreeFood (basic), medical, education, exportsG1 (no 1A)
Input TaxedFinancial supplies, residential rentG1 (no credit)
BAS ExcludedWages, drawings, loan principal, privateNot reported
No ABN WithholdingPayments to suppliers without ABN (47% w/h)Separate

Section 5 -- Asset vs Expense Thresholds

Instant Asset Write-Off (IAWO)

Instant Asset Write-Off (IAWO) (Tax Reform No. 2 Act 2026, schedules 1–2)

PeriodThresholdEligibility
1 Jul 2023 – 30 Jun 2026< $20,000 per assetAggregated turnover < $10m, using simplified depreciation
From 1 Jul 2026 application dateLess than $20,000 per eligible assetEnacted 26 August 2026; schedule 2 commences 1 October 2026. Tax Reform No. 2 Act 2026, schedules 1–2

Small Business Pool (Simplified Depreciation)

Small Business Pool (Simplified Depreciation)

PoolRateNotes
Year 1 (first use)15%On cost (or adjustable value if added later)
Subsequent years30%On opening pool balance
Pool balance < IAWO thresholdWrite off entire poolEnd-of-year check

General (Non-SB) Depreciation

General (Non-SB) Depreciation

MethodApplication
Diminishing valuerate = days held ÷ 365 × (200% ÷ effective life)
Prime cost (straight-line)rate = days held ÷ 365 × (100% ÷ effective life)

Common effective lives (2025 determination, asset-specific)

Common effective lives (2025 determination, asset-specific) (Income Tax Assessment (Effective Life of Depreciating Assets) Determination 2025, Table B)

AssetEffective LifeDV RatePC Rate
Desktop computers4 years50%25%
Laptops2 years100%50%
Printers/Scanners5 years40%20%
Office chairs10 years20%10%
Office desks20 years10%5%
Motor vehicles8 years25%12.5%
Air conditioning10 years20%10%
Eligible building capital worksDivision 43, subject to use and construction datesNo generic diminishing-value deductionCommonly 2.5%; verify eligibility and applicable statutory rate

Car Limit

  • Car cost limit for depreciation — For 2025-26, the limit is AUD 69,674. For 2026-27, it is AUD 69,883. Only the business-use portion of the applicable limit can be depreciated. AUD

Section 6 -- P&L Format

Income Statement (AASB Simplified / Tier 2)

STATEMENT OF PROFIT OR LOSS
For the year ended 30 June 20XX
                                            $           $
Revenue                                               xxx
Cost of sales                                        (xxx)
                                                     ────
Gross profit                                          xxx

Other income                                          xxx

Expenses:
  Employee benefits expense               (xxx)
  Depreciation and amortisation           (xxx)
  Finance costs                           (xxx)
  Other expenses                          (xxx)
                                                     (xxx)
                                                     ────
Profit before income tax                              xxx
Income tax expense                                   (xxx)
                                                     ────
Profit for the year                                   xxx
                                                     ════

Sole Trader — ATO Business Schedule Format

BUSINESS INCOME
  Gross payments subject to withholding       xxx
  All other business income                   xxx
  TOTAL BUSINESS INCOME                       xxx

BUSINESS EXPENSES
  Cost of sales                              (xxx)
  Contractor/subcontractor/commission        (xxx)
  Superannuation expenses                    (xxx)
  Bad debts                                  (xxx)
  Lease expenses within Australia            (xxx)
  Interest expenses within Australia         (xxx)
  Depreciation expenses                      (xxx)
  Motor vehicle expenses                     (xxx)
  Repairs and maintenance                    (xxx)
  All other expenses                         (xxx)
  TOTAL BUSINESS EXPENSES                    (xxx)

NET INCOME OR LOSS FROM BUSINESS              xxx

Section 7 -- Balance Sheet Format

Statement of Financial Position (Vertical — AASB Tier 2)

STATEMENT OF FINANCIAL POSITION
As at 30 June 20XX
                                            $           $
CURRENT ASSETS
  Cash and cash equivalents                           xxx
  Trade and other receivables                         xxx
  Inventories                                         xxx
  Other current assets                                xxx
                                                     ────
Total current assets                                  xxx

NON-CURRENT ASSETS
  Property, plant and equipment                       xxx
  Intangible assets                                   xxx
  Other non-current assets                            xxx
                                                     ────
Total non-current assets                              xxx
                                                     ────
TOTAL ASSETS                                          xxx
                                                     ════

CURRENT LIABILITIES
  Trade and other payables                            xxx
  Current tax liabilities                             xxx
  Provisions (annual leave, etc.)                     xxx
  Short-term borrowings                               xxx
                                                     ────
Total current liabilities                             xxx

NON-CURRENT LIABILITIES
  Long-term borrowings                                xxx
  Provisions (long service leave)                     xxx
                                                     ────
Total non-current liabilities                         xxx
                                                     ────
TOTAL LIABILITIES                                     xxx
                                                     ════

NET ASSETS                                            xxx
                                                     ════

EQUITY
  Issued capital                                      xxx
  Retained earnings                                   xxx
  Reserves                                            xxx
                                                     ────
TOTAL EQUITY                                          xxx
                                                     ════

Section 8 -- Bank Reconciliation Patterns

Common Australian Bank Formats

Common Australian Bank Formats

BankExport FormatKey Fields
Commonwealth Bank (CBA)CSV, OFX, QIFDate, Amount, Description, Balance
ANZCSV, OFXDate, Description, Amount, Type
WestpacCSV, OFX, QIFDate, Narration, Debit, Credit, Balance
NABCSV, OFXDate, Narration, Amount, Type, Balance
MacquarieCSVDate, Description, Amount, Balance
Bendigo BankCSV, OFXDate, Description, Debit, Credit, Balance
Up Bank / NeobanksCSVDate, Description, Amount, Category

Common Transaction Descriptions

Common Transaction Descriptions

PatternLikely Classification
DIRECT CREDIT, BPAY CREDITIncome — customer payment
EFTPOS, VISA PURCHASE, DEBIT CARDExpense — check merchant
DIRECT DEBIT, D/DRegular expense (insurance, subscription, utility)
BPAYExpense — bill payment (utilities, ATO, rates)
TRANSFER, INT TFRInternal transfer or payment — check counterparty
ATM WITHDRAWALDrawings (sole trader) or petty cash replenishment
INTEREST CHARGEDInterest expense (6440)
INTEREST PAIDInterest income (4200)
ATO PAYMENT, ATO IAS, ATO BASTax payment — not a P&L expense
PAYROLL, WAGESStaff costs (6100)
SUPER STREAM, SUPER CLEARINGSuperannuation (6110)
XERO, STRIPE, SQUARE PAYOUTPlatform payout — match to invoices

Section 9 -- Micro-Entity / Small Business Simplifications

Small Business Entity Concessions (turnover < $10m)

Small Business Entity Concessions (turnover < $10m)

ConcessionDetail
Simplified depreciationInstant write-off < $20,000; pool balance at 15%/30%
Simplified trading stockNo stock-take if estimate change ≤ $5,000
Prepaid expensesTest the 12-month rule and other exceptions under ITAA 1936 ss 82KZL and 82KZM
Simpler BASReport only G1, 1A, 1B (no G2, G3, G10, G11)
Two-year amendment periodATO can only amend assessments within 2 years (not 4)
Cash accounting for GSTReport GST when paid/received, not invoiced
PAYG instalmentsOption to pay quarterly amount the ATO calculates

Reporting Tiers

Reporting Tiers

TierWhoStandardsRequired Statements
Tier 1 (Full AASB / IFRS)Entities with public accountability or another Tier 1 requirementFull recognition and disclosureDetermine requirements under AASB 1053; size alone does not force Tier 1
Tier 2 (AASB 1060 Simplified)Non-publicly accountable entities electing Tier 2Full recognition, reduced disclosureAll 5 statements + reduced notes
Special purposeAssess the entity and reporting obligationThe AASB 2020-2 changes apply from periods beginning on or after 1 July 2021 to specified for-profit entitiesUse australia-financial-statements-2 and current AASB/ASIC requirements
No statutory reportingSole traders, small partnerships (non-company)None mandatedPrepare for ATO/tax purposes only

Large Proprietary Thresholds (must be reporting entity)

  • Large Proprietary Thresholds — Meet 2 of 3: Revenue ≥ $50m, assets ≥ $25m, employees ≥ 100.

Section 10 -- Interaction with Tax Skills

Income Tax Return

  • Sole traders: business schedule in individual return (myTax or tax agent)
  • Companies: Company Tax Return (form with labels mapped to financial statements)
  • Tax rate: individuals at marginal rates; companies at 25% (base rate entity, turnover < $50m) or 30%
  • Franking: company tax paid generates franking credits for shareholder dividends
  • Losses: carried forward indefinitely, subject to continuity of ownership test (companies) or non-commercial loss rules (individuals)

BAS / GST Return

BAS / GST Return

BAS LabelDescriptionCoA Mapping
G1Total sales (incl. GST-free and input taxed)4000–4500
1AGST on sales2050
1BGST on purchases (Input Tax Credits)1150
W1Total salary/wages and other payments6100
W2Amounts withheld from payments (PAYG-W)2100
T1PAYG instalment income4000–4500
T2PAYG instalment raised2140

Superannuation Guarantee

  • Rate: 12% from 1 July 2025; 11.5% applied in 2024–25. Use the earnings definition, contribution base and deadline for the pay date. From July 2026 use the payday regime in au-super-guarantee; earlier periods retain the quarterly regime. ATO super guarantee rates.
  • Due for 2025–26: quarterly deadlines. Use the separately cited payday rules for earnings paid from 1 July 2026.
  • Nominal: 6110 (expense) / 2110 (payable)
  • SG Charge for quarters before 1 July 2026: non-deductible. Apply the separate redesigned rules to later earnings.

Fringe Benefits Tax (FBT)

  • FBT year: 1 April – 31 March
  • Rate: 47% (top marginal + Medicare levy)
  • Common items: car fringe benefit, entertainment, loan fringe benefit
  • Meals/entertainment: establish whether an available 50/50 valuation election was made and its scope before applying it. Otherwise use the applicable actual-benefit and deduction rules. Do not default every meal to a 50% deduction. ATO FBT entertainment.

Section 11 -- Classification, Evidence and Corrections

11.1 The classification decision

Every transaction needs four decisions, not one. Answer them in this order, because a later answer can change an earlier one.

  1. Is it a business transaction at all? Owner drawings, private spending on a business card and internal transfers between the entity's own accounts are not income or expenses. Code them to equity or to the relevant balance sheet account.
  2. Revenue or capital? A cost that acquires, upgrades or extends the life of an asset is capital. A cost that restores it to its prior condition is a repair. See Section 5 for the thresholds and au-rental-property.md for the repairs and improvements tests.
  3. Which account? Use the chart of accounts in Section 2. Consistency between periods matters more than finding a perfect label; a category that changes each year destroys comparatives.
  4. Which GST code? Only after the first three. See the table in Section 4. A transaction coded to the wrong account often carries the wrong GST code with it.

Private use. Where an expense serves both business and private purposes, record the full amount and apportion, rather than guessing a net figure. The apportionment basis must be documented and consistent: a logbook for a vehicle, a floor area or hours record for a home office, an itemised bill for a phone. A percentage with no supporting method fails on review.

Unknown transactions. Post to a clearing or suspense account and list them for the client. Never guess a classification to close a period. An unresolved suspense balance at period end means the BAS and the accounts are both unreliable. See au-bas-preparation.md Section 4.

11.2 Evidence to hold

Evidence to hold

TransactionEvidence required
SaleInvoice or point-of-sale record. A tax invoice where GST is charged
Purchase where a GST credit is claimedA valid tax invoice, unless the acquisition is $82.50 including GST or less
Purchase with no GST creditSufficient record to show the expense was incurred and its purpose
Asset acquisitionInvoice, plus the date first used or installed ready for use
Asset disposalSale document, plus the written down value and any balancing adjustment
Vehicle expensesLogbook for a continuous 12-week period, valid five years, plus odometer readings, or kilometre records for the cents per kilometre method
Home officeHours record and evidence that the expenses were incurred
PayrollPayroll register, timesheets, the employment record and STP submissions
Adjustment to a sale or purchaseAdjustment note or credit note
Bad debt written offThe board minute or file note recording the write-off and its date

Records are generally kept for five years from lodgment, and longer where a CGT asset or a carried-forward loss depends on them.

11.3 Reconciliation as a control, not a chore

A reconciliation is what makes the ledger evidence rather than assertion. At minimum, each period:

  • Every bank, credit card and loan account reconciled to the statement.
  • GST collected and GST paid control accounts agreed to the transaction listing.
  • PAYG withholding payable agreed to the payroll register less amounts remitted.
  • Accounts receivable and accounts payable subledgers agreed to their control accounts.
  • Inventory agreed to a count or a supported roll-forward.
  • Loan accounts agreed to the lender statement, with interest and principal split correctly.
  • Clearing and suspense accounts at nil or fully explained.

11.4 Accounting treatment is not tax treatment

The ledger produces the financial statements. The tax return starts from those statements and then adjusts. Recording the tax answer in the ledger destroys the financial statements; recording only the accounting answer and forgetting the adjustment understates or overstates tax. Keep both, and keep the reconciliation between them.

Accounting treatment vs tax treatment

ItemAccounting treatmentTax treatment
DepreciationUseful life and residual value under AASB 116Effective life under Division 40, the small business pool, or the instant asset write-off
Buildings and structural improvementsCost or revaluation model under AASB 116, with depreciation and impairment where required under either modelDivision 43 capital works at a fixed rate, and the deduction reduces the CGT cost base
Employee leave provisionsRecognised when the obligation arisesDeductible when the leave is paid
Doubtful debts allowanceAn impairment estimateNot deductible. Only a debt actually written off as bad is deductible
EntertainmentAn expense in the profit and lossCommonly non-deductible, and may instead be a fringe benefit
Fines and penaltiesAn expenseNot deductible
General interest charge on a tax debtAn expenseNot deductible where incurred on or after 1 July 2025
RevenueAASB 15 performance obligationsDerived when earned or received, depending on the accounting basis and the taxpayer
PrepaymentsAn asset, expensed over the periodPrepayment rules can spread the deduction, with a 12-month exception for some taxpayers
Borrowing costsAASB 123Deductible over five years or the term of the loan, whichever is shorter
Unrealised foreign exchange movementsRevalued at reporting dateTaxed on a realisation event under Division 775
LeasesRight-of-use asset and lease liability under AASB 16Depends on whether the arrangement is a lease or a hire purchase for tax

Choosing the cost model does not remove depreciation: allocate the depreciable amount over the asset's useful life. Account for land separately from buildings. AASB 116 paras 29–31, 50, 58

Record permanent and temporary differences in a tax reconciliation working paper. A company also needs deferred tax balances where it reports under the full recognition requirements.

11.5 Correcting an error

Where the error is found matters more than how large it is.

Correcting an error

Where the error isWhat to do
In the current open period, nothing lodgedFix the transaction. No further action
In a closed period, but no BAS or return lodgedPost a dated correcting journal with a narration explaining it. Do not backdate into a locked period without a record
In a lodged BAS, GST affectedApply the GST error correction rules. See au-bas-preparation.md Section 7
In a lodged BAS, PAYG withholding affectedCorrect through the PAYG withholding correction process, and check whether STP needs updating
In a lodged income tax returnRequest an amendment. See au-lodgment-deadlines-penalties.md Section 10
Circumstances changed after correct reportingThis is an adjustment, not an error. Record it in the current period

Never fix a lodged period by silently re-opening it. The accounts must continue to agree with what was lodged, or to a documented correction of it. An unexplained change to a locked period is the difference between a correction and a misstatement.

11.6 Common bookkeeping errors

  • Coding a transaction by the payee name rather than by what was supplied. The same supplier can produce taxable, GST-free and input taxed transactions.
  • Claiming a GST credit on wages, superannuation, bank fees, most government charges or stamp duty.
  • Coding a director loan drawing to wages, or a wage to a drawing.
  • Capitalising a repair, or expensing an improvement.
  • Recording a net amount for a transaction that had both a gross figure and a deduction, which hides the deduction from both the accounts and the BAS.
  • Leaving a suspense balance and lodging anyway.
  • Changing the chart of accounts mid-year without restating comparatives.
  • Recording the tax depreciation figure in the ledger and calling it the accounting figure.
  • Treating an impairment allowance as a deductible bad debt.
  • Reconciling the bank but not the GST or PAYG withholding control accounts.

Disclaimer

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, CA, registered tax agent, or equivalent licensed practitioner in your jurisdiction) before filing or acting upon.

Contributed by Ryan Duguid.

Contributed by Ryan Duguid.

Contributed by Ryan Duguid.

Contributed by Ryan Duguid.

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