Australia Tax Invoice Requirements: Complete ATO Compliance Guide

An Australian tax invoice must include seven mandatory elements to satisfy the Australian Taxation Office (ATO): the words "tax invoice" stated prominently, the seller's identity and Australian Business Number (ABN), the date of issue, a description of the items sold including quantity and price, the GST amount (either shown separately or stated as a total price that includes GST), and the extent to which each sale is a taxable sale. For sales exceeding $1,000 including GST, the buyer's identity or ABN must also appear on the invoice.

These Australia tax invoice requirements apply to every business registered for the Goods and Services Tax (GST). You must register for GST if your annual turnover reaches $75,000 ($150,000 for non-profit organisations), and registration is required within 21 days of exceeding that threshold. Once registered, issuing compliant tax invoices is not optional — it is a legal obligation under the GST system.

Two dollar thresholds shape the practical rules around tax invoices:

$82.50 (including GST): For taxable sales below this amount, you are not required to provide a tax invoice unless the customer specifically asks for one.
$1,000 (including GST): Sales at or above this level trigger additional requirements — the invoice must identify the buyer by name or ABN.

These thresholds determine what must appear on a tax invoice Australia-wide, and the sections that follow break down each tier in detail.

There is also a 28-day rule to be aware of. If a customer requests a tax invoice for a taxable sale, you are legally required to provide one within 28 days of the request. Failing to do so does not just create friction with your customer — it can trigger compliance issues with the ATO.

Tax Invoice vs Regular Invoice in Australia

Under Australian GST law, a "tax invoice" is not simply another name for an invoice. It is a specific document type with legal significance, and only businesses registered for GST are permitted to issue one. Confusing the two is one of the most common compliance mistakes made by new business owners and sole traders.

A tax invoice is a document that meets the requirements set out in the A New Tax System (Goods and Services Tax) Act 1999. It must include prescribed elements (covered in the next section), and it serves a specific function: it entitles the recipient to claim GST credits when lodging their Business Activity Statement. Without a valid tax invoice, the buyer cannot recover the GST component of a purchase.

A regular invoice, by contrast, is any commercial document requesting payment for goods or services. It carries no GST implications and does not need to meet the ATO's tax invoice requirements.

What Non-GST-Registered Businesses Must Do

If your business is not registered for GST, you must not use the words "tax invoice" anywhere on your billing documents. Issue a plain invoice instead. Your invoice should either include a statement such as "No GST has been charged" or show the GST amount as $0.00. This makes it clear to the recipient that no GST is included in the price and that no GST credit can be claimed against this transaction.

Using the label "tax invoice" when you are not GST-registered is a compliance violation. It misrepresents your GST status and can mislead buyers into believing they are entitled to claim a GST credit they cannot legitimately receive.

When GST Registration Becomes Mandatory

The GST registration thresholds ($75,000 for businesses, $150,000 for non-profits) determine whether you issue tax invoices or regular invoices. Taxi drivers and ride-sharing operators must register regardless of turnover. Once registered, you are required to charge GST on taxable supplies and issue tax invoices when requested by a buyer.

Why This Distinction Matters for Buyers

From the buyer's perspective, the type of document received directly affects their ability to claim GST credits. A valid tax invoice from a GST-registered supplier is the prerequisite for claiming input tax credits on your BAS. If you receive a regular invoice from a supplier who is not registered for GST, there is no GST in the price and therefore no credit to claim.

Before claiming any GST credit, verify that the document is labelled "tax invoice" and that the supplier's ABN corresponds to an active GST registration. You can check a supplier's GST registration status through the Australian Business Register (ABR) lookup tool.

The Seven Mandatory Elements of a Tax Invoice

Every tax invoice issued for sales of $1,000 or less (inclusive of GST) must contain seven specific elements to satisfy ATO requirements. Missing even one can invalidate the document for GST credit purposes. Use the following as a tax invoice checklist for Australia to verify compliance on every invoice you issue or receive.

1. The words "Tax Invoice" stated prominently

The document must include the exact phrase "Tax Invoice" in a visible position, typically at the top of the page. This distinguishes it from a regular invoice, quote, receipt, or statement. Without these words, the document is not a tax invoice under the GST law, regardless of what other information it contains.

2. The seller's identity

The invoice must clearly identify who is making the sale. This can be the seller's business name, trading name, or the individual's legal name for sole traders. If the business operates under a registered trading name that differs from the legal entity name, either is acceptable as long as the identity is unambiguous.

3. The seller's Australian Business Number (ABN)

The seller's ABN must appear on the invoice. The ABN is an 11-digit identifier unique to Australia's tax system, assigned to every entity registered for business purposes. It is distinct from a Tax File Number (TFN) and is the number that links the business to its GST registration.

If you receive an invoice and want to confirm the ABN is legitimate, you can verify it on the Australian Business Register (ABR) website. An invalid or missing ABN is one of the most common reasons an invoice fails compliance checks, and without it, the recipient may be required to withhold 47% from the payment under the no-ABN withholding rules.

4. The date the tax invoice is issued

The invoice must show the date it was issued. This is the date the seller creates and provides the document, which may differ from the date the goods were delivered or services performed. The issue date matters because it determines the tax period in which the transaction falls for BAS reporting.

5. A description of items or services sold

Each line item needs a description sufficient to identify what was supplied, along with the quantity and the price. Vague descriptions such as "professional services" or "miscellaneous goods" without further detail can be challenged. The description should be specific enough that both the buyer and the ATO can identify the nature of the supply.

6. The GST amount for each item

The invoice must show the GST applicable to each line item. Sellers have two options for how to display this:

Option A: Show the GST as a separate line item. List the GST amount alongside each product or service. For example, a $200 item would show $200.00 + $20.00 GST = $220.00 total.
Option B: State that the total price includes GST. If the GST component is exactly 1/11 of the total price, the invoice can instead include a statement such as "Total price includes GST." This works because Australia's flat 10% GST rate means the GST portion always equals the total price divided by 11. For a $220 total, the GST is $220 ÷ 11 = $20.

Option B is common on simpler invoices, particularly in retail and hospitality. However, it only works cleanly when every item on the invoice is a taxable sale at the standard 10% rate. If the invoice includes a mix of taxable and GST-free items, showing GST per line item (Option A) is the more practical approach.

7. The extent to which each sale is a taxable sale

When an invoice covers both taxable and GST-free supplies, it must indicate which items attract GST and which do not. This element is often overlooked because many invoices only contain taxable sales, making it irrelevant in those cases. But for invoices that bundle taxable items (such as consulting fees) with GST-free items (such as certain food products, medical supplies, or exported services), each line item must be identified accordingly so the buyer can calculate the correct GST credit to claim.

A practical way to handle this is to mark each line item as "Taxable" or "GST-free," or to group items into separate sections on the invoice with clear subtotals for each category.

Element	What to Include	Common Mistakes
"Tax Invoice" heading	Exact phrase, prominently placed	Using "Invoice" alone or burying it in small print
Seller's identity	Legal name, business name, or trading name	Omitting the name when only an ABN is shown
Seller's ABN	11-digit Australian Business Number	Using a TFN instead, or showing an expired/cancelled ABN
Issue date	Date the invoice is created and provided	Using delivery date or payment due date instead
Item descriptions	What was sold, quantity, and unit price	Vague or bundled descriptions lacking specifics
GST amount	Per-item GST or "Total price includes GST" statement	Omitting GST details entirely or miscalculating the 1/11 split
Taxable sale extent	Which items are taxable vs GST-free	Not distinguishing when mixed supplies appear on one invoice

These seven elements form the baseline GST tax invoice requirements in Australia for sales up to $1,000 inclusive of GST. Sales exceeding that threshold require additional buyer information, covered in the next section.

Threshold Rules: $82.50 and $1,000

Australia's tax invoice requirements operate on a three-tier system based on the GST-inclusive value of the sale. Two monetary thresholds determine what you need to issue and what information must appear on the document. Getting these wrong is one of the most common compliance mistakes Australian businesses make.

The $82.50 threshold

For taxable sales of $82.50 or less (inclusive of GST), you are not required to issue a tax invoice unless the customer asks for one. If they do request it, you must provide the tax invoice within 28 days of the request.

The $82.50 figure is not arbitrary. It equals exactly $75.00 plus 10% GST. This threshold exists to reduce administrative burden on low-value transactions — a café selling a $12 lunch or a newsagent processing a $30 stationery purchase does not need to produce a formal tax invoice for every sale.

This is sometimes referred to as a "simplified tax invoice" scenario, though the ATO does not formally use that term. The requirements for a tax invoice remain the same regardless of the sale value — it is the obligation to issue one that changes below $82.50.

That said, "not required" does not mean "prohibited." Many businesses issue tax invoices for all transactions regardless of value, which is perfectly acceptable and can simplify record-keeping.

The $1,000 threshold

For taxable sales exceeding $1,000 (inclusive of GST), the standard seven mandatory elements are not enough. The tax invoice must also include:

The buyer's identity (name or business name)
The buyer's ABN, if the buyer has one and provides it to you

This additional buyer identification requirement exists because larger transactions carry greater GST credit implications. The ATO needs a clear audit trail showing who claimed the input tax credit on high-value purchases.

Three-tier summary

Transaction value (GST-inclusive)	Tax invoice required?	What must be included
$82.50 or less	Only if the customer requests one (must be provided within 28 days of request)	Standard 7 mandatory elements
$82.51 to $1,000	Yes	Standard 7 mandatory elements
Over $1,000	Yes	Standard 7 mandatory elements plus buyer's identity and buyer's ABN (if available)

A practical example: a supplier sells office furniture for $1,650 including GST. The tax invoice must show the supplier's and buyer's details, ABN for both parties, the date of issue, a description of the goods, the GST amount, and the total price. If that same supplier sells a $55 ink cartridge, no tax invoice is needed at all unless the buyer requests one.

For businesses that regularly transact near these thresholds, building both formats into your invoicing process from the start avoids the need to retroactively correct documents when a customer requests a tax invoice or when an invoice over $1,000 is missing buyer details.

Sole Trader and Small Business Tax Invoice Obligations

According to data from the Australian Small Business and Family Enterprise Ombudsman, there were 2,729,648 businesses actively remitting GST in Australia in 2024-25, with small businesses comprising 97.3% of all GST-registered entities. That means the vast majority of people dealing with tax invoice requirements are sole traders and small business owners, many handling their own invoicing without dedicated accounting support.

If you fall into this category, the rules apply to you in full. There are no simplified requirements or exemptions for smaller operations. But there are specific details about how you identify yourself on invoices that differ from companies and other structures.

Sole Trader Identity on Tax Invoices

As a sole trader, you are the business. There is no separate legal entity. Your tax invoices must show:

Your individual name (or your registered business name, if you have one)
Your individual ABN, which is issued to you personally, not to a company

If you trade under a registered business name, you can use that name on your invoices, but the ABN must still be the one issued to you as an individual.

A common point of confusion arises when sole traders operate through a trust or partnership. In those cases, the trust or partnership is the entity carrying on the enterprise, so the ABN and name on the tax invoice must be the trust's or partnership's, not the individual's. For example, if Jane Smith operates as a sole trader through the Smith Family Trust, the trust's ABN and the trust's name appear on the tax invoice — not Jane's personal ABN.

The $75,000 Threshold and Voluntary Registration

Sole traders with annual turnover below $75,000 are not required to register for GST. However, you can voluntarily register if it suits your business, for example, to claim GST credits on business purchases.

The critical compliance point here is binary:

If you are GST-registered (whether mandatory or voluntary), you must issue tax invoices that meet every ATO requirement, charge GST, and include the words "tax invoice" on the document.
If you are not GST-registered, you must not use the words "tax invoice" on any invoice you issue. You also cannot charge GST. Doing so misleads the recipient into believing they can claim a GST credit they are not entitled to.

Common Mistakes Sole Traders Make

Four errors appear repeatedly in ATO compliance reviews and BAS agent experience:

Labelling invoices as "tax invoice" before registering for GST. This is not a minor formatting issue. It creates false GST credit claims downstream and can trigger ATO scrutiny for both you and your client.
Omitting the ABN. Without your ABN, the recipient is required to withhold 47% of the payment under the PAYG withholding rules. Beyond the withholding risk, the document fails as a valid tax invoice entirely.
Not showing the GST amount. For supplies of $1,000 or more (including GST), the GST amount must be shown separately. Even below that threshold, showing the GST component or stating that the total price includes GST is mandatory.
Failing to issue a tax invoice when requested. If you make a taxable supply and the recipient asks for a tax invoice, you are legally required to provide one within 28 days. This obligation exists regardless of whether you would normally issue invoices proactively.

Each of these mistakes can result in penalties, denied GST credits for your clients, and additional reporting obligations. For sole traders managing their own compliance, building these four checks into your invoicing process catches the most frequent errors before they reach the ATO.

Edge Cases: Mixed Supplies, Exports, and Credit Notes

Standard tax invoices are straightforward when every line item carries 10% GST. Reality is rarely that clean. Many businesses deal with invoices that combine taxable and GST-free items, sell goods overseas, or need to correct pricing after the fact. These scenarios have specific ATO requirements that are easy to get wrong.

Mixed Supplies on a Single Invoice

When an invoice includes both taxable and GST-free items, the tax invoice must clearly identify the extent to which each sale is a taxable sale. This is the seventh mandatory element outlined in the GST Act, and it is the one most commonly mishandled in practice.

Each line item should indicate its GST status:

Taxable (10% GST): Standard goods and services subject to GST
GST-free (0% GST): Items such as basic food, certain medical supplies, or educational courses
Input-taxed: Financial supplies or residential rent where no GST is charged and no input tax credits are claimed

A single invoice can contain all three categories. The critical requirement is that the recipient can determine exactly which items attracted GST and at what amount. Lumping everything together with a single GST total at the bottom fails this test. If your accounting system does not break out the GST status per line, you need to fix that before your next BAS lodgement.

Exports and GST-Free Supplies

Exports of goods and services are generally GST-free under Division 38 of the A New Tax System (Goods and Services Tax) Act 1999. This means the supply is still connected to Australia's GST system, but the rate applied is zero.

If you are GST-registered and exporting, you still issue a tax invoice. The exported line items show $0 GST. This matters because:

You can still claim input tax credits on costs related to making those GST-free export supplies
The buyer receives a document that confirms the GST-free status of the transaction
Your BAS reporting needs to distinguish between taxable sales and GST-free export sales

Where businesses trip up is omitting the tax invoice entirely for exports, assuming that $0 GST means no documentation obligation. That is incorrect. The invoice requirements still apply; only the GST amount changes.

Recipient Created Tax Invoices (RCTIs)

In certain industries, the buyer creates the tax invoice rather than the seller. This arrangement is common in agriculture, mining, and manufacturing where the purchaser is better positioned to determine the quantity and value of goods at the point of acquisition.

Both parties must have a written RCTI agreement in place before any recipient-created invoices are issued. The agreement must specify the supplies it covers and acknowledge that the supplier will not issue their own tax invoice for the same transaction. Dual invoicing for a single supply creates compliance problems for both parties.

An RCTI must contain all the same mandatory elements as a standard tax invoice, with two additions:

It must be clearly labelled "Recipient Created Tax Invoice"
It must include the ABN of both the recipient (who created it) and the supplier

The supplier's obligation shifts from issuing invoices to verifying that the RCTIs they receive are accurate. If the supplier identifies an error, they need to notify the recipient promptly so an adjustment can be made.

Adjustment Notes for Post-Invoice Changes

When the price of a taxable sale changes after the original tax invoice was issued, an adjustment note is required. Common triggers include returned goods, volume discounts applied retrospectively, pricing errors discovered after the fact, or renegotiated contract terms.

An adjustment note must include:

The supplier's identity and ABN
A reference to the original tax invoice (invoice number and date)
A description of the adjustment and the reason for it
The difference in the GST amount resulting from the change
The date the adjustment note is issued

The adjustment note effectively amends the GST position for both parties. The supplier adjusts their GST collected, and the recipient adjusts their input tax credit claim. Both adjustments are reported in the BAS period when the adjustment note is issued, not the period of the original invoice.

If the GST difference from the adjustment is $75 or less, an adjustment note is not required, though maintaining one as a record is still good practice. For amounts above $75, the note is mandatory and the recipient cannot adjust their input tax credits without it.

Digital Tax Invoices and Peppol E-Invoicing

Australia fully accepts digital and electronic tax invoices. A PDF attached to an email, an invoice generated from accounting software, or a document created in a spreadsheet and saved electronically all satisfy ATO requirements, provided they contain every mandatory element and remain readable. There is no requirement to produce or retain paper originals.

The ATO does impose specific conditions on digital tax invoices. Electronic records must be:

Readable in their original format for the entire retention period
Reproducible so they can be provided to the ATO on request
Stored in a way that prevents unauthorised alteration of the document content

These records must remain accessible for at least five years from the date they were prepared or the relevant transaction occurred, whichever is later. Businesses that store invoices in cloud accounting platforms, document management systems, or even organised email folders meet these requirements as long as the records remain intact and retrievable.

Peppol E-Invoicing in Australia

Peppol, originally the Pan-European Public Procurement OnLine framework, has been adopted by the Australian Government as the standard for structured electronic invoicing. Unlike a PDF invoice emailed between parties, a Peppol e-invoice is a structured XML data file exchanged through the Peppol network via certified access points. The sender's accounting system transmits the invoice data directly into the recipient's system without manual handling.

Since July 2022, all Commonwealth government agencies are required to be able to receive Peppol e-invoices from their suppliers. This mandate is progressively extending to state and territory governments, and adoption across the private sector is growing as businesses recognise the efficiency gains.

If you supply to government, Peppol capability is effectively mandatory. You connect to the Peppol network through a certified access point provider, and major accounting platforms including Xero, MYOB, and QuickBooks now offer built-in Peppol support. The ATO maintains a list of accredited Peppol service providers on its e-invoicing page.

How Peppol Satisfies Tax Invoice Requirements

A valid Peppol e-invoice automatically satisfies ATO tax invoice requirements. The structured data format includes dedicated fields for every mandatory element: supplier and buyer ABNs, the date of issue, item descriptions, GST amounts, and the total payable. Because the data is machine-readable and validated at the point of exchange, common errors such as missing ABNs or incorrect GST calculations are caught before the invoice reaches the recipient.

Beyond compliance, businesses using Peppol benefit from reduced manual data entry, fewer invoice disputes, and faster payment cycles. Government agencies processing Peppol invoices have committed to paying correctly submitted invoices within shorter timeframes, which directly improves cash flow for suppliers.

Record Retention and BAS Obligations

Getting your tax invoices right is only half the compliance picture. The ATO requires you to keep those records for a defined period and use them as the basis for your Business Activity Statement (BAS) reporting.

The 5-Year Retention Rule

Australian tax law requires you to retain all tax invoices — both issued and received — for five years from the date you lodge the relevant BAS, not from the invoice date itself. This distinction catches many businesses off guard.

Consider a tax invoice dated 15 June that appears on your BAS for the quarter ending 30 June. If you lodge that BAS on 20 August, the five-year retention clock starts from 20 August. Discarding records five years from the invoice date could leave you short if the ATO requests documentation during an audit.

This applies equally to:

Tax invoices you issue to customers (supporting GST collected)
Tax invoices you receive from suppliers (supporting GST credits claimed)
Adjustment notes and credit notes related to either category

Acceptable Storage Formats

The ATO accepts electronic storage of tax records. You do not need to retain paper originals provided your digital copies are:

Readable — the document can be displayed or printed in full
Accessible — you can locate and produce the record when requested by the ATO
Complete — all mandatory information from the original is preserved, with no truncation or degradation

Scanned copies, PDF exports from accounting systems, and records stored in cloud platforms all qualify, provided they meet these three criteria. If you store records electronically, ensure your backup and retrieval processes are reliable enough to survive a five-year retention window.

Australia's five-year retention period sits in the middle range globally. Some jurisdictions require as few as three years, while others mandate seven or ten. For a broader view, see invoice retention requirements across different countries.

How Tax Invoices Feed Into BAS Reporting

GST-registered businesses report two key figures on their BAS:

GST collected — the total GST charged on taxable sales during the reporting period
GST credits claimed — the total GST paid on business purchases for which you are entitled to claim input tax credits

Every tax invoice you issue feeds into the GST collected figure. Every valid tax invoice you receive from a supplier supports the GST credits you claim. If a received invoice fails to meet ATO requirements, you may not be entitled to claim the GST credit — which directly affects your BAS accuracy and your cash position.

Most businesses lodge their BAS quarterly, though some lodge monthly (typically larger businesses or those who choose to) and others annually (small businesses with a GST turnover under $10 million can elect annual reporting). Regardless of frequency, the underlying principle is the same: your BAS figures must be substantiated by compliant tax invoices.

Accounting Software and BAS Preparation

Businesses using accounting platforms can automate much of the reconciliation between tax invoices and BAS figures. Tools like Xero map invoice data directly to the relevant BAS fields, reducing manual calculation. If you use this approach, preparing your BAS in Xero covers the workflow in detail.

However, automation does not absolve you of responsibility for the source documents. If your tax invoices contain errors — a missing ABN, incorrect GST amounts, or absent descriptions — those errors flow through to your BAS. The software reconciles what it receives; it does not validate whether each invoice meets ATO requirements. The accuracy of your BAS is only as good as the tax invoices behind it.

What Happens When a Tax Invoice Is Non-Compliant

Non-compliant tax invoices carry real financial consequences that go well beyond administrative inconvenience. Whether you issue a flawed invoice or accept one without scrutiny, the ATO treats invoicing failures as a compliance matter with measurable penalties.

GST Credit Denial

The most immediate consequence falls on the buyer. If a received tax invoice does not meet ATO requirements, the buyer cannot claim a GST credit for the GST component of that purchase. On audit, the ATO will deny GST credits for any transaction where the supporting tax invoice is missing, incomplete, or contains incorrect information.

The practical effect is straightforward: you pay an additional 10% on that purchase with no recovery mechanism. For a $50,000 supply, that is $5,000 in unrecoverable GST. Multiply this across dozens of supplier invoices flagged during a single audit period, and the exposure compounds quickly.

The ATO does not need to prove intent. A tax invoice that omits the supplier's ABN, fails to show the GST amount separately on purchases over $1,000, or lacks any of the mandatory elements is simply non-compliant. The credit is denied on that basis alone.

ATO Audit Triggers

Systematic invoicing errors are not invisible to the ATO. Their data-matching programs cross-reference BAS lodgements against supplier records, ABN registrations, and reported transaction values. Patterns that draw scrutiny include:

GST credits claimed without valid tax invoices on file
Missing or invalid ABNs on supplier invoices
GST amounts that do not reconcile with the reported totals on the BAS
Claiming GST credits from suppliers who are not GST-registered

When these patterns emerge, they can trigger targeted audits or compliance reviews. Preparing for an ATO tax audit requires gathering every supporting tax invoice for every GST credit claimed during the review period, which may span up to four years. Businesses that have accepted non-compliant invoices without requesting corrections face the prospect of reconstructing documentation under audit pressure, often with limited cooperation from suppliers after the fact.

Prevention is materially cheaper than remediation. Verifying tax invoices at the point of receipt takes minutes. Responding to an ATO audit takes weeks or months.

The ABN Withholding Rule

One of the most consequential and least understood invoicing rules applies when a supplier does not quote their ABN on an invoice. Under the Pay As You Go (PAYG) withholding provisions, the payer is legally required to withhold 47% of the payment and remit it to the ATO.

This is not optional and not discretionary. It applies regardless of whether the supplier is registered for GST, regardless of the size of the payment, and regardless of your relationship with the supplier. If no ABN is quoted, the withholding obligation falls on you as the payer.

Many businesses are unaware of this rule until an ATO review identifies payments made to suppliers without ABNs where no withholding was applied. At that point, the payer faces liability for the amounts that should have been withheld, plus potential penalties and interest.

Before paying any invoice that lacks an ABN, verify the supplier's registration through the Australian Business Register. If they have an ABN and simply omitted it, request a corrected invoice. If they do not have an ABN, apply the 47% withholding or obtain a completed ATO "Statement by a supplier" form where an exemption applies.

Penalties for Misleading Invoices

Issuing a document labelled "tax invoice" when you are not registered for GST is a violation of the GST Act. The ATO treats this as issuing a misleading document because it implies GST has been charged and will be remitted when neither is true.

Penalties for misleading tax invoices can be imposed on the issuer, and the recipient who claims a GST credit based on such a document faces denial of that credit on audit. If you are not registered for GST, your invoices must not use the term "tax invoice," must not include a GST line item, and must not display a GST-inclusive breakdown.

Correcting Non-Compliant Invoices

When an error is identified on a tax invoice, the appropriate remedy depends on the nature and timing of the error.

For the supplier: Issue a corrected tax invoice that replaces the original, or issue an adjustment note if the correction relates to a price change, returned goods, or a previously overstated GST amount. The corrected document should reference the original invoice number and clearly identify what has changed.

For the buyer: Do not claim a GST credit based on a tax invoice you know to be non-compliant. Request a corrected version from the supplier before including that credit in your BAS. If a corrected invoice cannot be obtained, document your attempts to obtain one. The ATO may exercise discretion where the buyer can demonstrate genuine effort to obtain compliant documentation, but this is not guaranteed and should not be relied upon as standard practice.

Establishing a verification step when invoices are received, before they enter your accounting system, eliminates most compliance exposure at the point where correction is easiest and cheapest.