Best NBN 100 plans: our top picks for fast 100Mbps internet
We dive into Australia’s 100Mbps internet option

The best NBN 100 plans are perhaps the most appealing in Australia thanks to their speed, availability and relative affordability. That's never been truer until recently, when NBN Co confirmed households with an eligible connection type will receive a 5x speed boost, transforming these into NBN 500 plans in the process.
The incoming change could well mean that NBN 100 plans become increasingly more popular, as not only will they deliver much, much faster download speeds, but they should do so for free.
Only homes who connect via fibre to the premises (FTTP) or hybrid fibre coaxial (HFC) will be able to take advantage of the speeds – if you do connect via either of these, then you'll also need to make sure you have an active NBN 100 plan in the first place. Elsewhere, homes who connect via FTTN or FTTC technology can see if they're eligible for the free fibre upgrade to get the necessary equipment installed.
Unfortunately, those who live in apartments and connect via fibre to the basement (FTTB), won't be able to sign up for the new speeds, so a 100Mbps NBN plan is going to be the fastest option available, unless there's private network infrastructure also available.
For now, these are our favourite, expert-approved NBN 100 plans.
Noteworthy NBN 100 deals
While we’ve picked out the best NBN 100 plans on the market just below, we’ve also dug up all the top deals and discounts from the providers and listed them here for a quick comparison:
- Flip: save AU$14.90p/m for 4 months on NBN 100 plan (from AU$69p/m)
- Spintel: save AU$16.95p/m for 6 months on NBN 100 plan (from AU$70p/m)
- Mate: save AU$30p/m for 6 months with code 'BEIN30'' (from AU$60p/m)
Best NBN 100 plans
Deciding on the best NBN 100 plan in Australia can be pretty tricky. Although, there was a time when just AU$6.60 separated the first year cost of five most affordable providers. Following price changes in 2024, that's no longer than case, and the difference is closer to AU$120!
We haven't automatically jumped to the cheapest providers however, but instead have dug a little deeper to determine which providers we think will offer the best overall service.
Best overall NBN 100 plan
Why you can trust TechRadar
Kogan Internet | 100Mbps | AU$65.90p/m (first 6 months, then AU$83.90p/m)
Kogan Internet is our new top choice for most people, following price increases to Spintel's equivalent offering. Kogan Internet advertises maximum plan download speeds and it receives generally favourable reviews from customers. as now stolen the crown as my top choice for an NBN 100 plan. This spot was held by Spintel for a long time, but that telco has since increased prices, allowing Kogan to swoop in to offer a greater value plan. This could change again come July when wholesale costs are expected to have an effect across all providers, but for now, Kogan Internet is the best option for most people in my opinion.
• AU$65.90 minimum cost
• AU$898.80 first year cost
• AU$1,006.80 ongoing yearly cost
Best fast NBN 100 plan
Exetel | 100Mbps | AU$75p/m (first 6 months, then AU$95p/m)
We've chosen Exetel as the best fast NBN 100 plan primarily because of its Speed Boost days feature. Along with maximum plan speeds, you get to temporarily boost the speed of your service to the next tier – 250Mbps in this instance – for free. Do note, that you will need an NBN connection type that supports these speeds (FTTP and HFC). If you have an FTTN/C connection, Spintel is still our top pick. We've also noticed that as of May 2025, Exetel has increased its costs by as much as AU$10p/m. The changes mean there is greater value to be found elsewhere, including Spintel's faster NBN 250 plan.
• AU$75 minimum cost
• AU$1,020 first year cost
• AU$1,140 ongoing cost
Cheapest NBN 100 plan
Dodo | 100Mbps | AU$73.90p/m (first 12 months, then AU$88.90p/m)
Because of Spintel's price increases, Dodo has retaken the crown as the cheapest provider for an NBN 100 plan thanks to a fantastic 12-month discount. Or at least, it makes it the cheapest provider during the first year. Once the 12-month discount comes to an end, there are cheaper alternatives to be found. You'll need to be quick though, as this offer ends on June 24, 2025.
• AU$73.90 minimum cost
• AU$886.80 first year cost
• AU$1,066.80 ongoing cost
- Telstra vs Optus NBN: who has better broadband?
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$82 to AU$110 a month for an ongoing rate, but the average monthly price among the NBN 100/20 plans we monitor is just over AU$92 a month, while an NBN 100/40 plan will set you back approximately AU$99 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 start around the AU$70 mark.
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?
While all connection types can sign up for an NBN 100 plan, not all of them may be capable of getting the full speeds offered by the service. Before signing up with a provider, it's worth double checking what connection type you have – such as hybrid fibre coaxial (HFC) cable or a fibre-to-the-node (FTTN) connection – and asking the telco if it’ll be suitable for the speed tier.
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.
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.
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Max is a senior staff writer for TechRadar who covers home entertainment and audio first, NBN second and virtually anything else that falls under the consumer electronics umbrella third. He's also a bit of an ecommerce fiend, particularly when it comes to finding the latest coupon codes for a variety of publication. He has written for TechRadar's sister publication What Hi-Fi? as well as Pocket-lint, and he's also a regular contributor to Australian Hi-Fi and Audio Esoterica. Max also dabbled in the men's lifestyle publication space, but is now firmly rooted in his first passion of technology.