# ABN Assist > ABN Assist (abnassist.com.au) is an Australian online service that registers, > reactivates and cancels Australian Business Numbers (ABNs) for sole traders and > individuals. Every application is reviewed by a registered tax agent before > lodgement direct to the Australian Business Register. Operated by Australian > Registration Office Pty Ltd, ABN 58 645 964 156, Registered Tax Agent 26076969 > (verifiable on the Tax Practitioners Board register). Key facts (current as of July 2026): - ABN registration, reactivation or cancellation: flat $99 inc GST, tax deductible - GST or PAYG registration add-ons: $27.50 each ($55 both) in the same application - Business name registration: $149 first year including the ASIC fee, renews at $99/year - Most ABNs issue the same day; agent review avoids the ATO's 28-day manual queue - Applying directly at the Australian Business Register (abr.gov.au) is free, the fee pays for agent review, same-day lodgement and phone support - Rideshare drivers (Uber, DiDi, Ola) need an ABN and GST registration from the first dollar; delivery-only work (e.g. Uber Eats) needs an ABN but GST only from $75,000 turnover - Invoicing without an ABN triggers 47% no-ABN withholding by business payers - Free phone help: 1800 546 526 (business hours, AEST) ยท info@abnassist.com.au ## Services - [Register an ABN](https://www.abnassist.com.au/): sole trader ABN, same day - [Reactivate an ABN](https://www.abnassist.com.au/reactivate-abn): cancelled ABN restored, same number where possible - [Cancel an ABN](https://www.abnassist.com.au/abn-cancellation-form): close it off properly, GST included - [Ride share ABN](https://www.abnassist.com.au/ride-share-abn-form): ABN + GST together for Uber, DiDi, Ola - [Business name registration](https://www.abnassist.com.au/business-name-registration): ASIC business name attached to your ABN, yearly auto-renewal - [Pricing](https://www.abnassist.com.au/pricing) ## Guides - [All guides](https://www.abnassist.com.au/guides): categorised plain-English answers - [Apply for an ABN online](https://www.abnassist.com.au/apply-for-an-abn) - [How much does an ABN cost?](https://www.abnassist.com.au/how-much-does-an-abn-cost) - [How long does an ABN take?](https://www.abnassist.com.au/how-long-does-it-take-to-get-an-abn) - [Do I need to register for GST?](https://www.abnassist.com.au/do-i-need-to-register-for-gst) - [Can I invoice without an ABN?](https://www.abnassist.com.au/can-i-invoice-without-an-abn) - [How to reactivate a cancelled ABN](https://www.abnassist.com.au/how-to-reactivate-a-cancelled-abn) - [How to cancel an ABN](https://www.abnassist.com.au/cancel-abn): the order of operations, the 28-day rule, and what cancelling does not close - [Do I need an ABN for DoorDash?](https://www.abnassist.com.au/do-i-need-an-abn-for-doordash): Dashers are contractors and need an ABN; GST only from $75,000, unlike rideshare - [Statement by a supplier](https://www.abnassist.com.au/statement-by-a-supplier): the ATO form that prevents 47% no-ABN withholding, and the narrow cases it covers - [Can you have more than one ABN?](https://www.abnassist.com.au/can-you-have-more-than-one-abn): one ABN per entity; a sole trader holds one across every activity - [What are the benefits of having an ABN?](https://www.abnassist.com.au/benefits-of-having-an-abn): no 47% withholding, GST credits, business name, bank account, .au domain; free to hold - [What does "nature of your activity" mean?](https://www.abnassist.com.au/nature-of-your-activity-abn-application): how to describe your business activity on the ABN application, with good and bad examples - [Do I need an ABN for freelance work?](https://www.abnassist.com.au/do-i-need-an-abn-for-freelance-work): yes from the first client; the exception is work that is really employment - [Do you need an ABN to sell at markets?](https://www.abnassist.com.au/do-i-need-an-abn-to-sell-at-markets): hobby stall vs regular trading, and what to give an organiser who asks - [Do I need an ABN for dropshipping?](https://www.abnassist.com.au/do-i-need-an-abn-for-dropshipping): a business from day one; GST from $75,000; import GST needs advice - [Do I need an ABN for a rental property?](https://www.abnassist.com.au/do-i-need-an-abn-for-rental-property): usually not for residential, since residential rent is input taxed; commercial differs - [Can you register for an ABN and GST at the same time?](https://www.abnassist.com.au/abn-and-gst-registration-together): yes, one application; who should bundle and who should wait - [What to do if a contractor's ABN has been cancelled](https://www.abnassist.com.au/paying-contractors-with-a-cancelled-abn): withhold 47% above $75; payers need not check ABN Lookup but must act on doubt - [How much tax do you pay on an ABN?](https://www.abnassist.com.au/how-much-tax-do-you-pay-on-an-abn): no separate ABN rate; ordinary individual rates on profit, nothing withheld as you earn - [How to get proof you've closed your business](https://www.abnassist.com.au/proof-of-business-closure): ABN Lookup showing cancelled, the ABR confirmation, and the final return - [Do I need to renew my ABN?](https://www.abnassist.com.au/do-i-need-to-renew-my-abn): no expiry and no renewal fee; renewal invoices are not from the government ## Tools (free) - [Find my ABN](https://www.abnassist.com.au/find-my-abn): three free ways to recover a forgotten ABN, plus a checker that reports whether an ABN is active or cancelled and whether it is registered for GST ## Calculators (free tools) - [Business calculators hub](https://www.abnassist.com.au/business-calculators) - [GST calculator](https://www.abnassist.com.au/gst-calculator) - [BAS calculator](https://www.abnassist.com.au/bas-calculator) - [GST turnover calculator](https://www.abnassist.com.au/gst-threshold-calculator) - [GST backdating calculator](https://www.abnassist.com.au/gst-backdating-calculator) - [Markup & margin calculator](https://www.abnassist.com.au/margin-calculator) - [Day rate calculator](https://www.abnassist.com.au/day-rate-calculator)