What Financial Records Does a Small Business Need to Keep in Australia?
Last updated: 25 October 2026.
Most owners know they have to “keep their records”, but not what that means in practice. Which documents? In what form? With what detail? This guide answers the “what” question, using the ATO’s and business.gov.au’s published rules (checked 25 October 2026). For the “how long” question, see our separate guide to how long to keep business records.
It is general information, not advice on your situation. Your structure, industry and employees can add record-keeping obligations beyond those here, so check with the ATO or a registered tax practitioner if you are unsure.
The short version: you must keep records of every transaction that affects your tax, super and registration obligations. Each record should show at least the date, the amount, what the transaction was for and the GST information. Keep them in English (or easily translated), protect them from change or damage, and keep most of them for five years.
What a record has to show
The ATO says a record explains the tax and super-related transactions your business conducts. Records need enough information to show the essential features or purpose of the transaction and its relevance to your income and expenses. The ATO says the minimum information is generally:
- the date, amount and description of the transaction (for example sale, purchase, wages, rent), and the relevant GST information;
- the purpose of the transaction; and
- the relationships between the parties, if relevant.
The checklist
business.gov.au lists the records you need to keep. The table below follows that list and adds what each usually looks like in practice.
| Record type | What it usually includes | Where it comes from |
|---|---|---|
| Income and sales | Invoices issued, receipts, point-of-sale and online store reports, payment platform summaries | Your invoicing system, till or online shop |
| Business expenses, including cash purchases | Supplier invoices, receipts, expense claims, a note for any cash payment with no receipt | Suppliers, email, receipt capture apps |
| Bank records | Bank, credit card and loan statements, reconciliations | Online banking, accounting software |
| GST records (if registered) | Tax invoices received and issued, BAS and workings, records of how you calculated GST | Accounting software, ATO online services |
| Assets and stock | Purchase documents for equipment and vehicles, depreciation records, stocktake sheets | Asset register, supplier documents |
| Employee and contractor records | Payroll records, super payments, TFN declarations, evidence of choice of super fund, contractor invoices and ABNs | Payroll software, super clearing house |
| End-of-year records | Lists of debtors and creditors, profit and loss summary, stocktake, records for capital gains where relevant | Year-end reports |
| Fuel tax credit records (if claiming) | Fuel purchase and usage records | Fuel receipts, logbooks |
The ATO’s guidance also covers records of any election, choice, estimate, determination or calculation you make for tax and super, including how it was made. Examples are your GST accounting method choice and any private-use estimate.
Tax invoices: the GST detail that matters most
If you are registered for GST, a tax invoice from your supplier is what lets you claim the GST credit on a purchase. The ATO says you must hold a tax invoice to claim a GST credit for purchases costing more than A$82.50 including GST. When you sell, a customer can ask you for a tax invoice, which you must provide within 28 days unless the sale is A$82.50 or less including GST. Tax invoices for sales under A$1,000 must contain at least seven details, including your ABN, the date, a description of what was sold, the GST amount and the taxable status of each item. Check the ATO’s tax invoice page for the requirements that apply to sales of A$1,000 or more.
Mixed business and private use
The ATO’s rules say that if an expense relates to both business and private use, you need clear documents to show the business portion. That applies to home internet and phone, vehicles, and any card used for both. The simplest fix is to separate the accounts entirely. See our guide on separating personal and business expenses.
Five practical rules from the ATO
- Keep everything relevant to starting, running, changing, selling or closing the business as it relates to your tax and super affairs.
- Do not alter records, and store them so they are protected from change or damage.
- Be able to reconstruct original data if your system changes. If you move from one accounting package to another, keep the old data accessible.
- Keep most records for five years. The five years generally start from when you prepared or obtained the record or completed the transaction, whichever is later, with some exceptions and some records needing longer. The ATO adds that ASIC requires companies to keep records for seven years.
- Be able to show them on request, including in a standard data format such as Excel or CSV if they are stored digitally.
Paper or digital?
You can keep either. The ATO recommends digital record keeping where possible, and business.gov.au says you do not need to keep paper copies as well unless a particular law says so. An electronic image of a paper record is acceptable if it is a true and clear reproduction of the original and the record-keeping rules are followed. Digital records must be on a device you can access (including all passwords), backed up in case of failure, and controlled by you. For point-of-sale businesses, the ATO says cash register tapes can be disposed of after one month if you keep the Z-totals.
A simple rhythm that keeps records complete
| When | What |
|---|---|
| Daily or as it happens | Record income and expenses; capture receipts |
| Each pay run | Record wages, PAYG withholding and super |
| Monthly | Bank reconciliation; review turnover if not registered for GST |
| Each BAS period | Check GST coding, tax invoices and BAS workings |
| Yearly | Debtors and creditors, stocktake, asset records, finalise payroll reporting |
That rhythm follows the ATO’s own list of record-keeping tasks. If you fall behind, our guides on catching up on months of overdue bookkeeping and overdue bookkeeping and BAS show how to recover.
What happens if you do not keep good records
business.gov.au says that if the ATO finds an error in your records, you may have to pay financial penalties or complete a record-keeping course. The ATO says there can be legal and financial consequences if you do not comply, and that it will help you get back on track if you make an error.
How we help
We keep Sydney small business records in order through monthly bookkeeping, BAS and payroll support, so you are always ready for a lender, an audit or a sale. See our bookkeeping services and small business accounting page, or email info@guidancegrowth.com.au or use our contact page.
Frequently asked questions
What is the minimum information a business record must show?
The ATO says generally the date, amount and description of the transaction (such as sale, purchase or wages), the relevant GST information, the purpose of the transaction, and the relationships between the parties if relevant.
Do I need to keep paper receipts?
Not necessarily. business.gov.au says you do not need to keep paper copies of digital records, and that the ATO accepts electronic images of paper records if they are a true and clear reproduction and follow the record-keeping rules.
Do I need a tax invoice for every purchase?
If you are registered for GST, you need a tax invoice to claim a GST credit for purchases costing more than A$82.50 including GST, according to the ATO.
How long do I need to keep business records?
Most records for five years from when you obtained or prepared them or completed the transaction, whichever is later, with some exceptions. The ATO notes ASIC requires companies to keep records for seven years.
What records do I need for employees?
Payroll records, super payment records, TFN declarations and evidence of super fund choice, among others. Our guides on payroll, STP and super explain the detail, and Fair Work has its own time and wages record rules.
What happens if my records are not good enough?
The ATO says there can be legal and financial consequences. business.gov.au says you may have to pay penalties or complete a record-keeping course if the ATO finds an error.
Sources and further reading
- ATO: Overview of record-keeping rules for business (checked 25 October 2026)
- ATO: When to do record-keeping and reporting tasks (checked 25 October 2026)
- ATO: Business record-keeping systems, digital or manual (checked 25 October 2026)
- ATO: Tax invoices (checked 25 October 2026)
- ATO: When you can claim a GST credit (checked 25 October 2026)
- business.gov.au: Record keeping (checked 25 October 2026)
This article is general information, not personal advice. Rules and dates can change, so check ato.gov.au or acnc.gov.au for the latest, or speak to us about your situation.