Does a bookkeeper need to be registered with the Tax Practitioners Board to provide BAS services in Australia?

Yes. Under the Tax Agent Services Act 2009 (Cth) (TASA), providing BAS services for a fee or reward requires registration with the Tax Practitioners Board (TPB) as a BAS agent or tax agent. BAS services include preparing or lodging Business Activity Statements, Instalment Activity Statements, and dealing with the ATO on behalf of clients in relation to those documents. Providing BAS services without registration is a criminal offence under section 50-5 of TASA, attracting penalties of up to $15,750 for individuals and $78,750 for corporations. Always verify your bookkeeper's TPB registration at the TPB public register at tpb.gov.au before signing an engagement.

What is the TPB Code of Professional Conduct and does it apply to my bookkeeper?

The Code of Professional Conduct under Part 3 of the Tax Agent Services Act 2009 (Cth) sets out the ethical and professional obligations of all TPB-registered practitioners, including BAS agents. Key obligations include acting honestly and with integrity, complying with tax laws, acting lawfully in the client's best interests, maintaining professional competence, keeping client information confidential, and not knowingly making false or misleading statements to the ATO. The Code is legally enforceable, and breaches can result in TPB sanctions including suspension or deregistration. Clients who believe their bookkeeper has breached the Code can lodge a complaint with the TPB. A Bookkeeping Agreement should acknowledge the bookkeeper's obligations under the Code.

What happens if my bookkeeper makes an error in a BAS lodgement?

If a registered BAS agent makes an error in a Business Activity Statement lodgement, the agent bears primary professional responsibility for that error under the Tax Agent Services Act 2009 (Cth) and the TPB Code. However, the client may still be liable for any resulting ATO tax debt, penalties, or interest depending on the circumstances. The ATO has safe harbour provisions under the Taxation Administration Act 1953 (Cth) that may protect clients from penalties where they relied in good faith on a registered tax or BAS agent and provided all relevant information. BAS agents are required by the TPB to hold professional indemnity insurance to cover client losses arising from errors. A Bookkeeping Agreement should address liability for errors arising from the client's provision of incomplete or inaccurate source documents.

Does a bookkeeper need to comply with privacy laws when handling client payroll data?

Yes. Bookkeepers who process payroll for clients handle sensitive personal information including employees' names, addresses, bank account details, tax file numbers, and salary data. The Privacy Act 1988 (Cth) and the Australian Privacy Principles apply to businesses with annual turnover exceeding $3 million. Tax file number information is specifically regulated under the Privacy (Tax File Number) Rule 2015, which prohibits collection, use, or disclosure of tax file numbers except in limited circumstances. Bookkeepers must use payroll data only for the purpose of performing the agreed services and must not retain employee data after the engagement ends without authorisation. A Bookkeeping Agreement should include appropriate confidentiality and privacy obligations.

Bookkeeping Agreement (Australia) — Australia

A Bookkeeping Agreement is a written contract between a professional bookkeeper or registered BAS agent and a business client that sets out the terms on which bookkeeping and financial administration services will be provided. In Australia, this document is particularly important because the provision of BAS services — including the preparation and lodgement of Business Activity Statements — is a regulated activity under the Tax Agent Services Act 2009 (Cth) (TASA), and only registered BAS agents or tax agents may legally provide these services for a fee. The Tax Agent Services Act 2009 (Cth) and the Tax Agent Services Regulations 2022 (Cth) establish the framework for the regulation of tax agents, BAS agents, and tax (financial) advisers in Australia. The Tax Practitioners Board (TPB) administers this regime and maintains a public register of registered practitioners. The TPB Code of Professional Conduct, which is legally binding on registered agents, requires that BAS agents act honestly and with integrity, maintain competence, and not knowingly obstruct the proper administration of tax laws. A written engagement letter or bookkeeping agreement is considered best practice under TPB guidelines and supports compliance with the Code. BAS services specifically include preparing or lodging BAS documents (which include the Business Activity Statement and the Instalment Activity Statement), and dealing with the ATO on behalf of clients in relation to these documents. Under section 50-5 of TASA, providing BAS services for a fee or other reward without TPB registration is a criminal offence attracting significant penalties. A Bookkeeping Agreement should clearly state the bookkeeper's TPB registration number. Record-keeping obligations under Australian law are significant. The Income Tax Assessment Act 1997 (Cth) requires businesses to retain records relevant to their income tax position for 5 years from the end of the income year in which the transaction occurred. The Corporations Act 2001 (Cth) requires companies to keep financial records for 7 years. GST records under the A New Tax System (Goods and Services Tax) Act 1999 (Cth) must be retained for 5 years. A Bookkeeping Agreement should clearly address who is responsible for record retention and for what period. Payroll processing — a common bookkeeping service — engages the Fair Work Act 2009 (Cth), relevant Modern Awards, and the Superannuation Guarantee (Administration) Act 1992 (Cth). Bookkeepers processing payroll must ensure superannuation contributions are calculated correctly and paid to the employee's nominated superannuation fund by the quarterly due date. From 1 July 2026, all employers with employees under 18 working more than 30 hours per week will be required to pay super under the expanded super legislation. Errors in superannuation calculations can expose the client to the Superannuation Guarantee Charge. Privacy considerations are significant in bookkeeping because the bookkeeper will handle sensitive financial information including employee payroll details, bank account data, tax file numbers, and business revenue figures. The Privacy Act 1988 (Cth) and the Australian Privacy Principles apply to businesses with turnover exceeding $3 million, and all bookkeepers should handle client information in accordance with these principles regardless of their size. Tax file number information is specifically regulated under the Privacy (Tax File Number) Rule 2015. This template is suitable for cloud-based bookkeeping arrangements using Xero, MYOB, or QuickBooks; sole trader and small business bookkeeping; payroll processing; BAS preparation and lodgement; and management reporting across all Australian states and territories.

What Is a Bookkeeping Agreement (Australia)?

A Bookkeeping Agreement is a legally binding written contract between a professional bookkeeper or registered BAS agent and a business client. It sets out the scope of bookkeeping and financial administration services to be provided, including data entry, bank reconciliation, payroll processing, superannuation lodgement, Business Activity Statement (BAS) preparation and lodgement, and management reporting.

In Australia, bookkeeping agreements are particularly important because the provision of BAS services is a regulated activity under the Tax Agent Services Act 2009 (Cth). Only registered BAS agents or tax agents may legally prepare or lodge BAS documents for a fee. A written engagement agreement formalises the relationship, confirms the bookkeeper's TPB registration, and documents the scope of authorised services.

A well-drafted Bookkeeping Agreement protects the bookkeeper by clearly defining the scope of services and the client's obligation to provide complete and accurate source documents. It protects the client by recording what services will be delivered, what records will be maintained, and how confidential financial information will be handled.

This template is suitable for cloud-based bookkeeping using Xero, MYOB, or QuickBooks; BAS preparation and lodgement; payroll processing; superannuation administration; and management reporting across all Australian states and territories.

When Do You Need a Bookkeeping Agreement (Australia)?

A Bookkeeping Agreement should be used whenever a business engages an external bookkeeper or BAS agent on a recurring or ongoing basis. Verbal arrangements are difficult to enforce and create uncertainty about the scope of services, fees, and responsibilities when problems arise.

This agreement is particularly important when: the bookkeeper will be preparing and lodging Business Activity Statements with the ATO on the client's behalf; the bookkeeper will process payroll and superannuation for employees; the bookkeeper will have access to the client's accounting software, bank feeds, and financial data; the engagement is ongoing and involves a retainer fee; and when the client needs clarity about who is responsible for record-keeping obligations and the consequences of providing incomplete information.

For bookkeepers and BAS agents, a signed agreement before commencing work provides protection against non-payment, scope disputes, and liability claims arising from the client's failure to provide accurate records. It also demonstrates compliance with TPB best practice guidance on client engagement.

For clients, a written agreement ensures accountability for deliverables, protects confidential financial information, and confirms the bookkeeper's professional credentials and insurance obligations.

What to Include in Your Bookkeeping Agreement (Australia)

A comprehensive Australian Bookkeeping Agreement should include the following key elements:

TPB registration details: The bookkeeper's Tax Practitioners Board registration number, confirming they are authorised to provide BAS services under the Tax Agent Services Act 2009 (Cth).

Scope of services: A precise description of all bookkeeping tasks included — data entry, bank reconciliation, payroll processing, BAS lodgement, management reports — and any services explicitly excluded, such as income tax return preparation or financial auditing.

Accounting software: The cloud platform to be used (Xero, MYOB, QuickBooks) and the access arrangements required to perform the services.

BAS agent services: If BAS lodgement is included, the agreement should specify the BAS frequency (monthly or quarterly), the ATO Online Services for Agents access arrangement, and the client's obligation to provide source documents before each due date.

Fees and GST: The agreed fee structure (monthly retainer or hourly rate), GST treatment, invoicing frequency, and payment terms including late payment consequences.

Client obligations: The client's duty to provide complete and accurate records and to review all BAS lodgements before submission. The bookkeeper's liability is limited for errors arising from the client's inaccurate information.

Record retention: The applicable retention period (generally 5 years under the Income Tax Assessment Act 1997 (Cth)) and responsibility for record storage after termination.

Confidentiality and privacy: Protection of sensitive financial information including employee payroll data and tax file numbers under the Privacy Act 1988 (Cth).

Term and termination: The notice period for termination and obligations to transfer accounting files and withdraw as BAS agent on termination.

Professional indemnity insurance: The bookkeeper's obligation to maintain current professional indemnity insurance as required under TASA.

Governing law: The state or territory whose laws govern the agreement.

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