Selling a business involves transferring more than just the trading activity. Your business name, your ABN arrangements, and any registered office details all need specific handling, and none of it happens automatically just because a sale agreement has been signed.
Your business name does not automatically transfer
If the buyer wants to keep trading under your existing business name, you need to formally transfer it through ASIC Connect. You initiate the transfer as the current holder, and ASIC issues a transfer number you give to the buyer, who then registers the name under their own ABN [ASIC, asic.gov.au]. The buyer generally has up to three months to complete their side of the registration before the transfer number lapses [Taxopia, taxopia.com.au].
The buyer needs their own ABN, not yours
A sole trader's ABN cannot be transferred to a new owner. The buyer must apply for their own ABN to take over the business [Business2sell, business2sell.com.au]. If the business is structured as a company and the sale is a share sale rather than an asset sale, the company's existing ABN and registered office can stay exactly as they are, since the legal entity itself has not changed, only its ownership.
What happens to the registered office in an asset sale
If you are selling the business assets out of your company to a buyer's separate entity, your company's registered office does not transfer with the sale. Your company, including its address, remains exactly as registered, unless you separately choose to deregister it once the sale is complete.
What you still need to update
Even after a name and ABN transfer, your invoices, proposals, and email footers should be updated to reflect the change, and customers should be notified directly rather than left to discover it themselves [Sprintlaw, sprintlaw.com.au]. If you continue operating any part of your business after the sale, under a different name or structure, your own ABN and ASIC details need separate updating to reflect your continuing operations accurately.
Why a stable address makes this transition cleaner
If your correspondence address has never been tied to the specific premises or structure being sold, transferring the business itself becomes simpler, since the buyer does not need to inherit your exact address arrangement to keep operating.
Space Penguin offers virtual addresses in Sydney and Melbourne from $20 per month plus GST, with no setup fee and no lock-in, suitable for keeping your correspondence address stable through a business sale or restructure. Visit spacepenguin.io/virtual-address for current details.