Best NBN 100 plans: compare your options for fast NBN

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Best NBN 100 plans
Best NBN 100/40 plans
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NBN 100 FAQ

NBN 100 plans are setting a new standard for speed, value, and customer service. Thanks to competitive, often extended, introductory offers, securing fast, reliable home internet is more affordable and easier than ever.

Recent data from the ACCC indicates that NBN 100 is quickly becoming a preferred choice for new connections, with many users upgrading from the widely adopted NBN 50 tier. Given that NBN 50 offers only half the speed for a minimal saving of about AU$5 per month, upgrading to the NBN 100 tier is often a sensible choice, provided it fits your budget.

Currently, 100Mbps download speed is the theoretical maximum achievable across all NBN connection types, including Fibre-to-the-Node (FTTN). However, for addresses with Fibre-to-the-Premises (FTTP) and Hybrid Fibre Coaxial (HFC) connections, NBN 100 plans have recently been upgraded to the faster NBN 500 tier at no extra cost to either providers or customers. If you have an FTTP or HFC connection, you may be paying for slower speeds than you could be getting. You can check out the best NBN 500 plans here.

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

With lingering discounts and price cuts, there's never been a better time to switch your NBN providers to maximise your savings. Scroll on to find our picks of the best NBN 100 plans available right now.

Best NBN 100 plans

Best overall NBN 100 plan

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Tangerine | AU$63.90p/m (for 6 months, AU$88.90p/m)

Hailing from the fruity provider, Tangerine, comes this 100/20Mbps deal. Advertising maximum speeds of 100Mbps during the busy evening hours of 7pm to 11pm, Tangerine's plan costs just A$63.90p/m for the first 6 months, before increasing to AU$88.90p/m.

What makes this deal even more enticing, though, is that it costs less than both the monthly and yearly average for the tier — even after the discount ends.

Total minimum cost: AU$63.90 | Total first year cost: AU$916.80 | Total yearly cost: AU$1,066.80

Cheapest NBN 100 plan

Kogan Internet | AU$71.90p/m (for 12 months, then AU$85.90p/m ongoing)

Kogan currently offers the cheapest NBN 100 plan, slashing a massive AU$168 off the first 12 months with this low introductory rate of AU$71.90p/m, before the price increases to AU$85.90p/m next May.

Clocking in theoretical maximums of 100Mbps downloads, you and your family will be set with high, lag-free speeds during the busy evening hours.

This plan costs the same as Kogan's NBN 500 offer, so if you have an FTTP or HFC connection at home, you might be better off upgrading. You can check it out in our best NBN 500 deals here.

Total minimum cost: AU$71.90 | Total first year cost: AU$862.80 | Total yearly cost: AU$1,030.80

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 | AU$67.90p/m (for 6 months, AU$92.90p/m)

Tangerine has 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$67.90 | Total first year cost: AU$964.80 | Total yearly cost: AU$1,114.80

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 | AU$99p/m

According to ACCC data, Optus delivers 101.4% 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$390, 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.

If you have an FTTP or HFC connection type, this plan has been upgraded to the NBN 500 tier at the same cost.

Minimum monthly cost: AU$390 (including modem fee) | Total yearly cost: AU$1,188

Best TPG NBN 100 plan

TPG | AU$64.99p/m (for 6 months, then AU$94.99p/m)

TPG's NBN 100 plan is the cheapest of the three major broadband telcos, but you will need to pay AU$114.95 if you require a modem to be supplied.

That said, TPG is currently offering AU$30 per month off this plan for the first 6 months — or AU$180 in total savings. For a 100Mbps maximum speed plan, this deal is hard to pass up.

If you have a FTTP or HFC connection type, this plan has been upgraded to the NBN 500 tier at the same cost.

Total minimum cost: AU$64.99 | Total first year cost: AU$959.88 | Total yearly cost: AU$1,139.88

Best Telstra NBN 100 plan

NBN 100 FAQ

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, NBN 100 will likely be more than fast enough for most Australian households.

That said, customers on FTTP or HFC connections can now access the NBN 500 tier, thanks to a planned speed boost. Most providers have passed on the 500Mbps speeds at no extra cost to customers, putting them on par with NBN 100 plans but with 5x the speeds.

How do I get NBN 100?

All NBN connection types are theoretically capable of supporting 100Mbps download speeds.

If you have a hybrid fibre coaxial (HFC) or fibre-to-the-premises (FTTP) connection type, this tier has received a free speed boost to NBN 500, meaning customers should be able to theoretically achieve maximum speeds of 500Mbps.

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 is a staff writer for Tom’s Guide Australia, primarily covering lifestyle, streaming 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.

With contributions from

Max LangridgeSenior Editor, Tom's Guide AU