For educational purposes only. Not tax, legal, or financial advice. Tax laws change frequently. Consult a registered tax agent or CPA for your specific situation.
Tax for Australian Bookkeepers, Tax Agents and BAS Agents
Australian bookkeepers who charge a fee to lodge BAS returns must register with the Tax Practitioners Board under the Tax Agent Services Act 2009, hold professional indemnity insurance, and complete ongoing CPE. GST registration is compulsory at $75,000 turnover, and sole practitioners operating through a company or trust with a small number of clients face Personal Services Income rules that can override trust distributions and limit deductions.
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If you charge a fee to lodge BAS returns or provide tax advice in Australia, you must be registered with the Tax Practitioners Board under the Tax Agent Services Act 2009. BAS agents need a Certificate IV in Accounting and Bookkeeping plus 1,000 to 1,400 hours of recent experience; tax agents need a degree with approved tax and commercial law subjects plus supervised experience. Both must hold professional indemnity insurance at all times. Income tax applies to trading profit at individual marginal rates (sole trader) or 25% base rate entity tax (Pty Ltd), GST registration is compulsory at $75,000 turnover, and the Personal Services Income rules in Part 2-42 of the ITAA 1997 apply if you operate through a company or trust with a small number of clients.
What business structure do Bookkeepers, Tax Agents and BAS Agents use?
The common patterns for Bookkeepers, Tax Agents and BAS Agents are: Sole trader: simplest setup, ABN registration only, suits one-person BAS practices under roughly $100k profit, Pty Ltd company: limited liability, 25% base rate entity tax, salary-plus-dividend extraction from around $100k+ profit, required if multiple practitioners operate under one entity, Partnership or trust: occasionally used for multi-partner practices or income splitting, but s.100A risk applies to non-arm's-length distributions and PSI rules can override trust distributions. The right structure depends on revenue, liability exposure, and personal circumstances, covered below.
What is the difference between a BAS agent and a registered tax agent?
A BAS agent can prepare and lodge Business Activity Statements covering GST, PAYG withholding, PAYG instalments, wine equalisation tax, luxury car tax, and fuel tax credits. They cannot provide income tax return advice or lodge income tax returns for a fee.
A registered tax agent can do everything a BAS agent does plus prepare and lodge income tax returns, advise on FBT, and represent clients to the ATO on all tax matters.
Qualification thresholds differ significantly. BAS agents need a minimum Certificate IV in Accounting and Bookkeeping from a registered training organisation, including a TPB-approved GST/BAS course, plus 1,000 hours of relevant experience in the past four years (1,400 hours if not a voting member of a recognised professional body). Tax agents need an accounting degree or equivalent with TPB-approved Australian tax and commercial law subjects, plus typically 1,800 or more hours of supervised experience.
An unregistered bookkeeper who only does data entry, bank reconciliations, and internal reporting (without lodging BAS or advising on GST obligations) does not need TPB registration. The moment they charge a fee for BAS preparation or lodgement, registration is required.
Anyone who charges a fee to provide BAS services must register as a BAS agent; anyone who charges a fee to provide tax agent services must register as a tax agent. Unregistered bookkeepers cannot lodge BAS or advise on tax matters for a fee.(Tax Agent Services Act 2009 ss 50-5, 50-10; ATO guidance Tax Practitioners Board registration requirements guide)
Is professional indemnity insurance mandatory?
Yes. Professional indemnity (PI) insurance is a mandatory condition of TPB registration for both BAS agents and tax agents. You must hold and maintain adequate PI cover at all times while registered. Failure to maintain cover is a breach of the TPB Code of Professional Conduct and can result in suspension or termination of registration.
Minimum cover levels depend on gross fees from tax and BAS services. For smaller BAS practices, typical minimums fall in the $250,000 to $1 million range. Premiums for micro-practices often start around $40 to $60 per month.
PI premiums are fully deductible as a business expense. If your registration lapses because you let PI cover drop, you cannot legally charge for BAS or tax services during the gap, and any fees earned during that period were earned in breach of the Act.
Registered BAS agents and tax agents must maintain professional indemnity insurance at all times as a condition of TPB registration. Premiums are deductible.(Tax Agent Services Act 2009 s 20-5; TPB Code of Professional Conduct; ATO guidance TPB professional indemnity insurance requirements)
How do the Personal Services Income rules affect bookkeeping practices?
If you operate through a Pty Ltd company or trust and the income you earn is mainly a reward for your personal efforts or skills, Part 2-42 of the ITAA 1997 (Personal Services Income rules) may apply. When PSI rules apply, you cannot split income with family members through trust distributions, and deductions are limited to those that would be available to an employee.
To escape the PSI rules, your business must pass one of the Personal Services Business (PSB) tests: the results test (at least 75% of PSI is for producing a result, you supply your own tools, and you are liable to rectify defects at your own cost), the 80% rule (no more than 80% of PSI from a single client), the unrelated clients test (income from two or more unrelated clients obtained through offers to the public), or the employment test (employing one or more apprentices or other workers for at least 20% of the principal work).
Solo BAS agents with one dominant client are at high risk. A diversified client base, fixed-price engagements where you bear the cost of rework, and employing staff all support PSB status. The ATO actively audits PSI compliance in accounting and bookkeeping practices.
Income from personal services provided through a company or trust is attributed back to the individual unless the business passes a Personal Services Business test.(ITAA 1997 Part 2-42 (Divisions 84-87); ATO guidance ATO Personal Services Income guide)
What CPE do I need to maintain my registration?
BAS agents must complete a minimum of 45 hours of continuing professional education (CPE) per three-year registration period, with at least 5 hours in each year. Tax agents face higher requirements: at least 20 hours per year, with an aggregate of 90 to 120 hours over a three-year registration period.
CPE must be relevant to the services you provide. For BAS agents this typically includes GST updates, payroll tax changes, Single Touch Payroll, superannuation guarantee obligations, and software training. For tax agents it extends to income tax law changes, FBT, CGT, trust taxation, and ethical and professional obligations.
All registered agents must make annual declarations confirming ongoing compliance with CPE, PI insurance, and the fit and proper person requirements. Renewal is commonly every three to five years. Falling short on CPE hours at renewal is grounds for TPB refusal to renew registration.
CPE costs (course fees, conference registration, related travel and accommodation where the primary purpose is professional development) are deductible as business expenses.
BAS agents need 45 hours of CPE per 3-year registration (minimum 5 per year); tax agents need 90 to 120 hours per 3-year period (minimum 20 per year). CPE costs are deductible.(Tax Agent Services Regulations 2022; ATO guidance TPB continuing professional education requirements)
Contractor vs employee: the written contract is decisive
The High Court reset the contractor/employee test in 2022. Where there is a comprehensive written contract that is not a sham, classification turns principally on the rights and obligations established by that contract — not on the day-to-day conduct of the parties. Get the engagement contract right at the start; do not rely on post-contract behaviour to recharacterise the relationship later.
This matters because misclassification exposes the engager to PAYG withholding shortfalls, super guarantee charge (with the contractor-deemed-employee extension under SGAA 1992 s 12(3)), and payroll tax. It also affects whether the worker can deduct business expenses and whether PSI rules engage.
Contractor vs employee classification is determined principally by the rights and obligations in the written contract, not by post-contract conduct.(CFMMEU v Personnel Contracting Pty Ltd [2022] HCA 1; ZG Operations Australia Pty Ltd v Jamsek [2022] HCA 2 (companion case); ATO guidance TR 2023/4 (employee vs independent contractor))
Home running costs: PCG 2023/1 fixed-rate vs actual cost
Most workers in this trade do some admin from home — quoting, invoicing, scheduling, BAS prep. From 1 July 2024 the ATO fixed-rate method is 70c per hour worked from home and covers electricity, gas, internet, mobile, stationery and computer consumables. You cannot also claim those bills separately under the fixed rate. You can still separately depreciate office furniture and equipment used at home.
FY 2024-25 and FY 2025-26 rate: 70c/hr. FY 2022-23 and FY 2023-24 rate: 67c/hr. The fixed rate requires a contemporaneous record of actual hours worked from home — a timesheet, calendar or app log. Estimates and four-week samples are no longer accepted for the fixed rate method (they remain valid for the actual cost method).
The fixed-rate method for home office running costs is 70c per hour from 1 July 2024 and requires a record of actual hours worked from home.(PCG 2023/1 (as amended); ITAA 1997 s 8-1; ATO guidance TR 93/30; TR 2024/3)
PI cover required by TPB for BAS and tax agent registration
Fully deductible. Must be maintained at all times while registered
Home office (running costs)
Electricity, internet, phone, stationery, cleaning, depreciation on office furniture and equipment
Deductible at business-use percentage. Fixed-rate method (70 cents per hour) or actual-cost method available
Home office (occupancy costs)
Proportion of rent, mortgage interest, council rates, home insurance for dedicated office area
Deductible if dedicated area set aside as place of business, but creates CGT implications on sale of home
CPE and training
TPB-approved courses, conferences, webinars, GST update seminars, related travel and accommodation
Deductible if maintaining or improving skills in current role. Initial qualifying training (Cert IV, degree) to become a BAS/tax agent is not deductible
Own accountant fees for business tax return, BAS preparation for own practice, ASIC fees (Pty Ltd)
Deductible as business operating expense
Vehicle and travel costs
Most bookkeepers and BAS agents work primarily from home or a fixed office, so vehicle claims are typically modest. Travel to client premises, the ATO, training venues, and between multiple work locations is deductible. Cents-per-km (88 cents per km, max 5,000 business km, giving a maximum $4,250 deduction) suits practitioners with limited travel. The logbook method (actual costs multiplied by business-use percentage from a 12-week logbook) is better for mobile bookkeepers who visit multiple client sites daily. Home-to-office commuting is private and not deductible, but travel from one client site to another during the working day is deductible.
Capital allowances and equipment
The instant asset write-off for small business entities (turnover under $10 million) is $20,000 per asset for 2025-26. A $1,800 laptop, a $600 monitor, or a $400 printer can each be written off in full in the year of purchase. A $2,500 multi-function printer or a $5,000 standing desk and chair set also qualify. For assets above $20,000 (uncommon in bookkeeping practices), the simplified depreciation pool applies: 15% in the first year, 30% in subsequent years.
Common ATO audit triggers for Bookkeepers, Tax Agents and BAS Agents
Personal Services Income: sole practitioner with one or two dominant clients operating through a Pty Ltd or trust without meeting a PSB test
Home office claims without a diary of hours worked or a floor-area calculation to support business-use percentage
Software and subscription claims that include personal-use streaming, music, or non-business apps
CPE claims for courses unrelated to current registration (e.g. real estate licence while registered as BAS agent)
Failure to maintain PI insurance creating a gap in registration, with fees still charged during the unregistered period
Undeclared cash payments from clients, particularly for one-off BAS preparation jobs
Frequently asked questions
Can I do bookkeeping without TPB registration?+
Yes, but only if you limit your work to data entry, bank reconciliations, and internal reporting without lodging BAS returns or advising on GST obligations for a fee. The moment you prepare or lodge a BAS, advise on GST treatment, or represent a client to the ATO on BAS matters for a fee, you must be registered as a BAS agent with the Tax Practitioners Board under the Tax Agent Services Act 2009.
Are my software subscriptions tax deductible?+
Yes. Subscriptions to accounting platforms (Xero, MYOB, QuickBooks Online), BAS lodgement suites, document management tools, e-signing services, CRM software, and workflow tools are fully deductible as business operating expenses. If a subscription has both business and personal use, you must apportion and claim only the business percentage.
Will AML/CTF Tranche 2 affect my bookkeeping practice?+
From 1 July 2026, Tranche 2 reforms to the Anti-Money Laundering and Counter-Terrorism Financing Act 2006 bring many accounting and tax practices into the AUSTRAC reporting net. Tax agents who provide entity structuring, fund handling, or financial transaction facilitation are highly likely to be captured. Solo BAS practices that only handle coding, reconciliations, and BAS preparation are generally expected to remain outside the AML/CTF regime, but should monitor the final regulations closely.
How does the fit and proper person test work for TPB registration?+
You must be at least 18 years old, have a good reputation in the community, have no convictions for serious tax offences or fraud within the prescribed period, not be an undischarged bankrupt, and not have been imprisoned during the relevant period. For companies and partnerships, the entity must not have been convicted of serious fraud or dishonesty in the preceding five years. The TPB assesses this at initial registration and can review it at renewal or in response to complaints.