Registrar pages want to sell you both. Forums are full of confident people repeating 2012 advice. Here is the actual decision. You can only register a .com.au if you hold an ABN, ACN or ARBN, or an Australian registered trade mark (or a pending application): and the domain itself must match your entity name, an acronym of it, your trade mark, or a synonym of the goods or services you actually supply. That second half is the part people miss. Eligibility is not just "do I have an ABN"; it is "does this specific string have a defensible connection to what I do". Under the current .au Licensing Rules the connection test is tighter than it used to be, and a foreign company cannot register a .com.au on the basis of intending to enter the market someday.
Once eligibility is settled, the strategic question is simpler than the internet makes it: .com.au is the stronger choice when Australia is your market; .com is the stronger choice when Australia is one market among several. Everything else is detail about redirects and brand equity.
Key Takeaways
- .com.au requires an Australian presence, ABN/ACN/ARBN, or an Australian trade mark or application, plus a connection between the domain string and your name, acronym, trade mark, or services.
- Foreign companies cannot register on aspiration. Establish the entity or the trade mark first, or use .com.
- A ccTLD is a clear geographic signal to search engines and, more importantly, to Australian users judging trust in the SERP.
- The cost of .com.au is an international expansion ceiling: it reads as a local business to buyers in other markets.
- Registering both and redirecting is normal and sensible. Pick one canonical destination and be consistent.
- Rules change. Verify current eligibility against auDA before you commit budget or branding.
The domain decision is a market-scope decision wearing a technical costume.
Eligibility: The Two-Part Test
Part one: Australian presence
You need one of:
- an ABN (Australian Business Number)
- an ACN (Australian Company Number)
- an ARBN (Australian Registered Body Number)
- an Australian registered trade mark, or a pending application for one
An ARBN is how a foreign company registered with ASIC as a foreign entity gains standing. A trade mark application is the other realistic path for an overseas brand: but the mark must be Australian, filed with IP Australia, and the domain must then match it.
Part two: the connection to the domain string
Presence alone is not enough. The domain must be:
- a match or close match to your entity or business name, or
- an acronym or abbreviation of that name, or
- a match to your Australian trade mark, or
- a synonym of, or otherwise closely and substantially connected to, the goods or services you actually supply: or the events, activities, premises or profession you actually operate
The last limb is the one that gets tested. If you sell accounting software, accountingsoftware.com.au is defensible. If you sell accounting software and you register melbourneplumbers.com.au because it has traffic, that is not a defensible connection and the licence can be challenged.
What this closes off
The old speculative-registration model, grabbing generic keyword domains to resell or to build unrelated lead-gen sites, is substantially harder under the current rules. Domains must connect to what the registrant actually does.
The Strategic Comparison
| Decision factor | .com.au | .com |
|---|---|---|
| Eligibility | Requires ABN/ACN/ARBN or AU trade mark, plus a connection test | Open to anyone, anywhere |
| Geo signal to search engines | Strong, unambiguous ccTLD signal for Australia | Neutral; geography must be signalled by content, hreflang, links and Search Console settings |
| Australian user trust | High: reads as a local business with local accountability | Neutral to slightly foreign, depending on category |
| International expansion | Ceiling: reads as an Australian-only business abroad | No ceiling; the default global TLD |
| Availability | Generally better, smaller registrant pool | Poor for short or generic strings; often expensive on the aftermarket |
| Acquisition cost | Usually low, standard registration | Can run into five or six figures for desirable strings |
| Local SEO fit | Excellent for service-area and suburb-level targeting | Workable, but you are compensating rather than signalling |
| Foreign company entry | Blocked until entity or trade mark exists | Immediately available |
| Brand consolidation | Awkward if you later run .com globally and .com.au locally | Clean single-brand story |
| Best fit | Australian-market businesses, local services, RTOs, AU-first startups | Global SaaS, products with multi-market ambition, brands already trading internationally |
The Foreign Company Trap
This is the most common expensive mistake I see with offshore and international teams entering Australia.
The pattern: a company decides to launch in Australia, builds an AU landing site, tries to register the .com.au, and discovers it cannot. It then does one of three things, all bad.
Option one: register through a local contact. Someone's cousin's company holds the licence. This creates a real ownership problem the day the relationship sours, and the connection test may not be satisfied by that entity anyway.
Option two: launch on .com and defer. Fine, actually: but only if it is a deliberate choice, not a delay dressed as strategy. If you build all your Australian link equity and brand recall on brand.com/au, migrating later is expensive.
Option three: rush a trade mark application to unlock the domain. Legitimate, but a trade mark should be filed because you want the mark, not as a domain workaround. Talk to an attorney about classes that actually cover your services.
The clean answer: if Australia is a real market, establish the real entity. An ABN or ARBN is the foundation for everything else anyway: local invoicing, GST, employment, and the compliance obligations that come with marketing here.
The domain question usually reveals whether the market-entry plan is real or aspirational.
Does a ccTLD Actually Help Rankings?
Honestly: less than the SEO folklore suggests, and more than the sceptics claim.
What it genuinely does
A ccTLD is an unambiguous signal of geographic targeting. You do not need to configure anything; the association is inherent. For a business serving one country, that removes a whole class of ambiguity, you never have to worry about a market-targeting setting being wrong.
What it does not do
It does not overcome weak content, thin authority, or bad technical health. A .com.au with no links and generic copy will not outrank a well-built .com serving Australian intent. Domain extension is a tiebreaker, not a ranking strategy.
The part that matters more than rankings
Click-through in the SERP. Australian users scanning results for a local service, a plumber, an RTO, a physiotherapist, a supplier, read .com.au as "operates here, accountable here." That trust effect on CTR is often larger than any direct ranking benefit. For local commercial intent, this is the real argument.
Running Both: The Practical Setup
Most Australian businesses should own both if the .com is affordable: defensively, if nothing else. The rules:
Pick one canonical destination
Serve the site from one domain. 301 the other to it. Do not run duplicate sites on both.
Choose the canonical by market scope
- Australia-only, now and for the foreseeable future → canonical .com.au
- Australia-first, global later → canonical .com from the start, with strong AU signals in content, structured data, local presence and Search Console
- Already global, entering Australia → canonical .com, use .com.au defensively and redirect
Signal geography properly on a .com
If .com is canonical and Australia matters, do the work: local address and phone in schema, AU spelling and terminology throughout, AUD pricing, hreflang if you run multiple market versions, and genuine Australian links and citations.
Migration: If You Have to Move
Domain migrations lose traffic when done carelessly. The non-negotiables:
- 1:1 301 redirects at page level, never a bulk redirect to the homepage
- Keep redirects permanently: years, not months
- Update canonicals, sitemaps, internal links and structured data before launch, not after
- Register the new property in Search Console and use the change-of-address tool where applicable
- Reach out for the top 30 external links to update the destination
- Expect a dip. Plan the migration outside your peak season: for Australian B2B, not in May, and not into the December-January slowdown
Search Engine Land's migration coverage at searchengineland.com is a reasonable technical reference if you need a checklist to hand to a developer.
Special Cases
Registered training organisations
RTOs marketing nationally recognised training should almost always be on .com.au. The trust signal matters in a category where prospective students are actively assessing legitimacy, and the audience is domestic by definition.
Edtech and startups with global ambition
Use .com. An edtech brand that wants learners across markets should not brand itself into one country. If Australia becomes a major market, add .com.au as a redirect and build local presence through content and partnerships instead.
Local service businesses
.com.au, without much deliberation. The buyer is local, the intent is local, and the trust signal converts.
Marketplaces and directories
Depends on whether supply and demand are both domestic. If yes, .com.au. If either side is international, .com.
Frequently Asked Questions
Can I register a .com.au without an ABN?
You need an ABN, ACN, ARBN, or an Australian registered trade mark or pending application. An ABN is the most common route, but it is not the only one.
Can a foreign company get a .com.au?
Only by establishing eligibility: typically registering as a foreign company with ASIC to obtain an ARBN, or holding an Australian trade mark. There is no aspirational or intent-to-enter pathway.
Does the domain have to be my exact business name?
No. It can be your name, an acronym or abbreviation of it, your trade mark, or a term closely and substantially connected to the goods, services, activities or profession you actually supply. The connection has to be real.
What is the connection test?
The requirement under the .au Licensing Rules that the domain string relate meaningfully to the registrant: their name, trade mark, or actual offering. It exists to prevent speculative and unrelated registrations.
Is .com.au better for SEO than .com in Australia?
It is a clearer geographic signal and typically earns better click-through from Australian users on local-intent queries. It does not substitute for content quality or authority.
Should I redirect .com to .com.au or the reverse?
Redirect toward whichever matches your market scope. Australia-only businesses should canonicalise .com.au; businesses with international ambition should canonicalise .com.
What about .au direct registrations?
Direct .au registrations exist alongside .com.au and carry their own eligibility requirements. Check auDA's current rules, the sensible default for most established businesses is still .com.au with .au held defensively.
Can my licence be challenged?
Yes. Eligibility and allocation can be disputed, particularly where the connection test looks weak or the string matches someone else's trade mark. Register on a defensible basis.
Do I own my .com.au domain?
You hold a licence to use it, subject to continuing eligibility, rather than owning it outright. If you cease to satisfy the eligibility criteria, the licence is at risk.
Where do I verify all of this?
auDA publishes the current .au Licensing Rules. Registrar marketing pages are not a substitute. They are frequently out of date and always commercially motivated.
Most domain debates are actually unresolved arguments about market scope. Decide whether Australia is your market or one of your markets, and the extension chooses itself. I work with edtech and startup teams on organic growth strategy, including the structural decisions, domains, site architecture, market signals, that are cheap to get right at the start and expensive to fix later. More at younusfardeen.com.