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ATO cancelled your ABN? Get it back today.

It's not uncommon, the ABR cancels ABNs that look inactive. Answer the questions below and a registered tax agent reviews and lodges your reactivation, usually the same business day. Instant email and SMS confirmation when it's live again.

  • Your original ABN reissued where your structure hasn't changed
  • GST and PAYG withholding added in the same application if you need them
  • Reviewed by a registered tax agent before it reaches the ABR
  • $99 inc GST, flat, and it's tax deductible
  • Free phone support on 1800 546 526
Tax Practitioners Board, Registered Tax Agent 26076969

Australian Registration Office Pty LtdABN 58 645 964 156Verify on the TPB public register

Which ABN are we reactivating?

STEP 1 OF 5
Enter a valid 11-digit ABN
Total, inc GST: tax deductible$99.00
1

Confirm the ABN

Look it up, see its status on the register, and confirm it's yours.

2

Agents review & lodge

A registered tax agent checks your reactivation and lodges it direct to the ABR.

3

Back in business

Instant email and SMS confirmation, followed by a letter from the ABR.

Need it back? Reactivated by a tax agent.

A cancelled ABN can usually be reactivated rather than replaced. Reviewed before lodgement by Registered Tax Agent 26076969. Free help on 1800 546 526.

Reactivate my ABN

Reactivation questions

Can I reactivate my old ABN or do I need a new one?

You reapply. Once an ABN has been cancelled the ABR requires a fresh application, there is no switch to flick. Where your business structure has not changed the original number is usually reissued, so old invoices, bank records and platform accounts still line up. That is the normal outcome for sole traders whose details have not changed.

Source: ABN Lookup: cancel or re-apply for an ABNCurrent as at 5 August 2026
How long does ABN reactivation take?

Same as a new application: same day if your identity details match ATO records cleanly, up to 28 days if the application lands in manual review. Our agent check before lodgement exists to keep you in the fast queue.

Why was my ABN cancelled in the first place?

Usually the ATO cancelled it automatically after periods of no business activity (no BAS lodgements, no income reported). It’s routine, reactivation is the fix, and you can add GST registration in the same application for $27.50 if you now need it.

Can I add GST registration at the same time?

Yes, in the same application. If you are driving for a rideshare platform you must register for GST regardless of turnover. For other work the general threshold is $75,000 of GST turnover, with 21 days to register once you reach or expect to reach it.

Source: ATO: registering for GSTCurrent as at 5 August 2026
Does reactivating my ABN fix unlodged BAS or tax returns?

No. Reactivation puts the ABN back on the register. Any outstanding activity statements or income tax returns remain outstanding and still need lodging. If that is your situation, tell us when you apply so a tax agent can flag what is still open.

What does the reactivation fee cover?

A registered tax agent reviews the application against the entitlement questions first, lodges it, and deals with the ABR if it lands in manual review. Where you are still entitled to an ABN you will usually get the same number back rather than a new one.