Best NBN 100 plans: compare your options for fast NBN

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Some of the best NBN 100 plans give Aussie households a speedy, secure and thrifty way to get connected online. According to the latest ACCC data published in June 2024, NBN 100 plans are becoming a first pick, with droves of consumers jumping up a tier from the wildly popular NBN 50 tier.  

That said, 100Mbps download speeds are theoretically the highest achievable by all NBN connection types, including depreciating fibre-to-the-node (FTTN) connections. Most telcos in Australia offer NBN 100 plans, and for those that don't deliver max speeds, the average peak-time speed still comes close to 100Mbps — like Superloop's 98Mbps cap — so you'll likely not notice any difference. 

While NBN 100 plans may not offer the outright fastest speeds across the fixed-line network, 100Mbps would easily cover an average household of four or more users during the busy evening hours. 

The average price of this speed tier comes out to AU$91.34p/m, according to our research at the time of writing. However, several ISPs offer attractive introductory discounts, which could see you spending as little as AU$64.90p/m for a 'fast' plan.

Over the past few weeks, we've noticed NBN 100 prices spike thanks to NBN Co's recent wholesale pricing changes. While we anticipate that prices will continue to go up over the next month or so, there's never been a better time to switch your NBN plan to maximise savings. Scroll on to find our picks of the best NBN plans available right now. 

Best NBN 100 plans

Best overall NBN 100 plan

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Tangerine | NBN 100 | Unlimited data | No lock-in contract | AU$64.90p/m

Tangerine | NBN 100 | Unlimited data | No lock-in contract | AU$64.90p/m (for 6 months, AU$84.90p/m)

Tangerine's Speedy NBN plan is currently the cheapest offering that advertises the maximum 100Mbps speeds during busy evening hours. And with the introductory rate, the plan slashes off AU$20p/m — that's AU$120 — before the price increases. 

Plus, if you're looking to bundle a phone line, you can add a home voice plan for as little as AU$10p/m for unlimited standard calls within Australia or you can add a mobile SIM from AU$22p/m ongoing. 

Do note though, to make the most of this offer, you'll need to sign up by July 31, 2024, as the telco will be hiking fees come August. 

Total minimum cost: AU$64.90 | Total cost for first year: AU$898.80 | Yearly cost after discount: AU$1,018.80

Cheapest NBN 100 plan

Spintel | Unlimited data | No lock-in contract | AU$71p/m

Spintel | Unlimited data | No lock-in contract | AU$71p/m (for 6 months, then AU$81.95p/m)

Spintel offers sensational value for a low cost. Across all NBN 100 plans, the offering has one of the lowest first yearly cost of a modest AU$917.70 — only 30c more than Flip's plan — and one of the cheapest ongoing rate after the introductory discount ends. 

There’s little in the way of extra features with this plan – which will likely go some way to explaining the low cost – but if you’re just searching for a no frills NBN plan to get you connected, Spintel is well worth your attention.

Total minimum cost: AU$71 | Total cost of first 12 months: AU$917.70 | Yearly cost after discount: AU$983.40

More NBN 100 plan deals

Best NBN 100/40 plans

We've already made a passing mention to NBN 100/40 plans, and if it sounds like the plan for you, you'll want to know which ones are the best. 

Some NBN providers offer 100/40 plans as an option, however, you will need to pay around AU$10p/m extra. 

Best overall NBN 100/40 plans

Tangerine | Unlimited data | No lock-in contract | AU$74.90p/m

Tangerine | Unlimited data | No lock-in contract | AU$74.90p/m (for 6 months, AU$89.90p/m)

We mention Tangerine here again, as it's the cheapest 100/40 plan currently available — particularly, after the introductory offer ends. With 34Mbps uploads, this plan doesn't quite reach theoretical maximum speeds, but it's unlikely to have much of a real-world difference. 

Much like the 100/20 plan, you can expect to achieve the full 100Mbps download speeds during the busy evening hours. 

Total minimum cost: AU$74.90 | Total cost for first year: AU$988.80 | Yearly cost after discount: AU$1,078.80

Exetel | Unlimited data | No lock-in contract | AU$78.99p/m

Exetel | Unlimited data | No lock-in contract | AU$78.99p/m (for 6 months, then AU$94.99p/m)

Exetel's NBN 100/40 plan is currently one of the cheapest plans for most people. As with the telco's 100/20 NBN plan, you can expect the full 100Mbps speed during the busy evening period. As for upload speeds, Exetel claims you'll get 34Mbps during the busy evening hours. Plus, Exetel gives you the five free Speed Boost days, which boosts your service to the NBN 250/25 speed tier.

Total minimum cost: AU$78.99 | Total cost for first year: AU$1,043.88 | Yearly cost after discount: AU$1,139.88

Best NBN 100 plans: Major NBN providers

If you’re looking to upgrade to an NBN 100 plan or switch providers, it makes sense to check out deals that are being offered by Australia’s major NBN providers: Telstra, Optus and TPG. In most cases an NBN plan from any of the big three won’t be the cheapest option, but you are at least highly likely to experience a reliable service. And, since all three provide mobile services too, you may be able to bundle up and save some money. Other perks, such as free subscriptions to streaming services, may also be included.

All three also provide 4G backup with their modems, so if your fixed-line NBN connection drops out, you’ll still be able to connect to the internet via 4G data.

Best Optus NBN 100 plan

Optus | NBN 100 | Unlimited data | No lock-in contract | AU$89p/m

Optus | NBN 100 | Unlimited data | No lock-in contract | AU$89p/m (for 6 months then AU$99p/m)

Retailing at AU$99 p/m, this Optus introductory offer will save you AU$24 p/m for the first six months — that's a saving of AU$144 — before the price increases. 

According to ACCC data, Optus delivers 100.6% of advertised download speeds across all hours of the day — meaning you can reasonably expect to reach 100Mbps during the peak evening hours of 7-11pm. 

The only thing to note though, is that this plan's minimum cost is AU$381, as it includes the modem. However, you won't pay any additional fees for the modem if you remain connected for 36 months or more. 

Minimum monthly cost: AU$385 (including modem fee) | Total cost for first 12 months: AU$1,128 | Yearly cost after discount: AU$1,188

Best TPG NBN 100 plan

TPG | Unlimited data | No lock-in contract | AU$79.99p/m

TPG | Unlimited data | No lock-in contract | AU$79.99p/m(for 6 months, then AU$89.99p/m)

TPG's NBN 100 plan is the cheapest of the three major telcos, but you will need to pay AU$99.95 if you require a modem to be supplied. That said, it does advertise the full 100Mbps speeds now, whereas it previously only claimed to reach 95Mbps during the busy evening hours. 

You can bring your own modem if you wish, or if you don't already own one, you can buy your own and claim an AU$100 rebate. 

Total minimum cost: AU$79.99 | Total cost for first year: AU$1,019.88 | Yearly cost after discount: AU$1,079.88

Best Telstra NBN 100 plan

Telstra | Unlimited data | No lock-in contract | AU$105p/m

Telstra | Unlimited data | No lock-in contract | AU$105p/m (for 6 months, then AU$110p/m)

Telstra’s NBN 100 plan is the most expensive in Australia, there's no beating around the bush. You are promised maximum speeds during the evening hours and a modem with 4G backup to help soften the blow. 

Being a Telstra customer does bring other perks, such as deals on various streaming services, including Binge and Spotify. 

Total minimum cost: AU$105 | Total cost for first year: AU$1,290 | Yearly cost after discount: AU$1,320


What is NBN 100?

NBN 100 is a speed tier that can offer download speeds up to 100Mbps, although the actual speed you can achieve will vary depending on network conditions and your NBN connection type. 

However, a good proportion of NBN providers in Australia do now claim to offer the full 100Mbps typical evening speed. Some may still fall slightly short of 100Mbps, delivering, on average, between 90-99Mbps typical evening speeds instead.

Is it worth getting NBN 100?

If you live in a household with multiple users wanting to use the internet at the same time, and if you stream and download video content in 4K resolution or large files, then yes, we would recommend NBN 100. 

While you can get even faster NBN plans in the form of NBN 250 and NBN 1000, NBN 100 will likely be more than fast enough for most Australian households. 

How do I get NBN 100?

All NBN connection types are theoretically capable of supporting 100Mbps download speeds, however you may find in a real-world scenario that this isn't actually the case. 

If you have a hybrid fibre coaxial (HFC) or fibre-to-the-premises (FTTP) connection type, then you should definitely be able to achieve 100Mbps downloads. If you have any other NBN connection type, then it isn't guaranteed. 

Some NBN providers offer free trials of their services, so be sure to take advantage of these, and check the T&C's before signing up.

What does NBN 100/20 mean?

NBN 100/20 refers to the download and upload speed of your plan, i.e. 100Mbps download and 20Mbps upload. 20Mbps upload speeds should be more than enough for most households, but if you need to conduct multiple video calls or you spends hours online gaming, then you may need something faster.

In these instances, an NBN 100/40 plan is available, with 100Mbps download speeds and up to 40Mbps upload speeds.

Lucy Scotting
Staff Writer

Lucy Scotting is a digital content writer for Tom’s Guide in Australia, primarily covering NBN and internet-related news. Lucy started her career writing for HR and staffing industry publications, with articles covering emerging tech, business and finance. In her spare time, Lucy can be found watching sci-fi movies, working on her dystopian fiction novel or hanging out with her dog, Fletcher.

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