Why do businesses need an ABN?

An ABN is needed for billing other businesses, registering for GST (if annual turnover exceeds $75,000), applying for government grants, and avoiding tax withholding

How do I validate or verify real ABNs?

Use our special "Validate ABN" tool or the ATO's ABN Lookup. This tool checks if an ABN is active, registered, and corresponds to a valid business entity.

Is these test data suitable for production?

No—just for development, testing, and demonstrations. Our ABNs mirror formatting, not registration status. For production systems, always validate ABNs with the ABR/ATO.

Can I export the ABNs?

Yes. You can copy them one at a time after generation or export all ABNs as CSV—perfect for test databases or spreadsheets.

What about security and privacy?

Since our ABNs are fictional, there is no possibility of exposure of real business data. Generated numbers are ephemeral and never associated with real-world parties or personal information.

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Generate ABN

The Australian Business Number (ABN) is a unique 11-digit identifier for businesses operating in Australia. It's used for tax purposes, GST registration, and business identification across government agencies.

About ABN

Australian Business Number for business registration and tax purposes

Features

Generate valid ABN numbers that pass official validation
Bulk generation for testing multiple scenarios
CSV export for easy integration with test suites
Real-time validation with detailed error messages
Support for multiple formats and variations

Note: JavaScript is required to use the generation tool. The interactive form will load once JavaScript is enabled.

How to Use

Enter the number of ABNs you need
Configure any additional options (state, country, etc.)
Click the generate button
Copy results or download as CSV

Example Format

19829579425

All generated ABNs follow official formatting standards.

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Validate ABN Test Data Generator Blog & Tutorials

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Frequently Asked Questions

Common questions about ABN generation.

What is an ABN?

An Australian Business Number (ABN) is an 11-digit identifier issued by the Australian Business Register (ABR)/ATO. It's utilized to identify businesses for tax, GST, invoicing, government dealings, and more

Is it free to generate a test ABN here?

Yes! Our ABN generator is completely free and creates realistic, valid-format 11-digit ABNs for testing and development—exclusively for non-commercial use.

Can I generate multiple ABNs in bulk?

Sure. You can generate 1 to 100 ABNs at a time—great for testing workflows or populating demo databases.

Are these ABNs real and already registered?

No. The ABNs generated here are in the correct format (with valid checksum digits), but they're not registered. Don't use them for real business or legal uses.

Why is the ABN 11 digits long?

An ABN consists of nine main digits with two check-digits before them for validation. This helps the number to be structurally valid, reducing data-entry errors