The best NBN 100 plans are now only going to appeal to a small number of Australian homes. That's because they've now been replaced by NBN 500 plans for homes that connect via fibre to the premises (FTTP) or hybrid fibre coaxial (HFC).
If you don't have either of those connection types, perhaps you live in an apartment building, then a NBN 100 plan is the maximum speed you can get, without seeking out a private fibre network. If that's the case, then I've compared all your options to determine which is the best plan for you needs.
If you live in a house and you want to get faster internet at home, then you're likely eligible for NBN Co's free fibre upgrade that will get you the necessary equipment to seek out the fastest NBN plans instead.
Best NBN 100 plans
Considering the majority of the best NBN providers claim to deliver the maximum plan speeds of this tier – 100Mbps – shortlisting the best plans requires a little extra digging. Fortunately, I know what to look for, so you'll find my top recommendations below.
Best overall NBN 100 plan
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Cheapest NBN 100 plan
Best NBN 100/40 plan
All of the plans above are known as NBN 100/20 plans, with the 20 indicating the maximum upload speed you can achieve. An NBN 100/40 plan, therefore, doubles the maximum possible upload speed to 40Mbps, which is ideal for people who carry out a lot of video calls, or need to upload larger files to the cloud.
Not every provider offers an NBN 100/40 plan, however, so we've chosen just one plan that we recommend.
NBN 100 FAQ
How fast is NBN 100?
NBN 100 plans offer download speeds up to 100Mbps, although actual usage will vary, particularly during the busy hours between 7pm and 11pm. Most NBN providers who offer a plan on this tier don’t report a typical evening speed of 100Mbps, with the average speed sitting at 97Mbps.
There are two types of NBN 100 plan, and what differs between them is their maximum upload speed. The more popular NBN 100/20 plan offers maximum uploads of 20Mbps, while the less common NBN 100/40 plan has a maximum upload speed of 40Mbps.
NBN providers don’t always disclose which of these two plans you’re signing up for, so check the provider’s critical information summary if you’re unsure. In the meantime, the ACCC is pushing for internet providers to be more transparent about upload speeds.
How much does NBN 100 cost?
The market has plenty of variety when it comes to cost for an NBN 100 plan. Prices now range between AU$84 to AU$113 a month for an ongoing rate, but the average monthly price among the NBN 100/20 plans we monitor is just over AU$94 a month, while an NBN 100/40 plan will set you back just under AU$104 a month on average.
Plenty of telcos will also offer you a six-month discount when you first sign up to an NBN 100 plan, and these prices can start as low as AU$62.
As you might expect, the telco with the most expensive NBN 100 plans is Telstra. You’ll typically find that Telstra sweetens the deal by offering other inclusions or discounts, such as a modem with 4G back up.
Can I get NBN 100?
If you connect to the fixed-line NBN via an FTTN, FTTC or FTTB connection, then yes you can get an NBN 100 plan. If you connect via the superior FTTP or HFC connection types, then you're unable to get a 100Mbps plan, but that's only because you now have an NBN 500 plan as your minimum if you want faster speeds.
If you think an NBN 100 might be too much for your needs though, you still have the option of the best NBN 50 plans.
To check what NBN connection type you have, you only need to enter your address on the provider’s website, or check your address on NBN Co’s website. Some providers offer a trial period to test their service, so be sure to make use of this if it’s an option, and let them know if you’re unsatisfied with the speeds you’re receiving. We have a dedicated guide on how to do an NBN speed test if you need.
When are NBN 100 plans getting a speed upgrade?
NBN 100 plans, along with other high-speed options, received a speed boost as of September 2025 as part of a string of NBN speed upgrades.
These have seen NBN 100 plans receiving a 5x speed boost to a theoretical maximum of 500Mbps download speeds. This speed boost arrived for free, but is only available to customers who connect to the fixed-line NBN network via a FTTP or HFC connection.
NBN 50 vs NBN 100?
As with any purchasing decision, the 'better' option won’t be better for everyone. For light internet users – that’s households of two to four users that stream content and don’t plan to use it for anything more intensive – an NBN 50 plan is likely to be more than enough.
But for anyone currently running into congestion problems, or anyone that wants their download wait time drastically cut down, the extra AU$200 or so per year is certainly a small price to pay for double the download speeds – particularly in the context of a plan that already costs around AU$750 annually, in the case of NBN 50 plans.
