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Best NBN 100 plans: our top picks for fast 100Mbps internet

(Image credit: NBN)

NBN 100 was the best speed tier on offer when the National Broadband Network first became available to Aussies, leading the charge for great NBN plans. While NBN 250 and even NBN 1000 plans are now available for power users, the 100Mbps offering is perfect for families or smaller households with heavy internet usage.

There's plenty to choose from in the market when looking at the NBN 100 tier, with most internet providers offering this as their top-rate tier, so we've compared what's on offer to recommend you the best NBN 100 plan available.

Spintel is taking the lead for best overall value and fastest plan in the NBN 100 category, thanks to its great intro offer and solid ongoing cost. MyRepublic has the cheapest plan, however, clocking in AU$6 under spintel's monthly fee after the first six months is up.

Current 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 current deals and offers from providers on the service and listed them here for a quick comparison.

Best NBN 100 plans

Best overall NBN 100 plan

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Spintel | NBN 100 | Unlimited data | No lock-in contract | AU$69p/m (first 6 months, then AU$84.95p/m) (opens in new tab)

With Spintel's NBN 100 plan, you’ll get a discount on your first six months with the service, so you’ll first pay AU$69 a month before the price reverts back to the standard AU$84.95. Even once the initial discount ends, it’s still the cheapest option you’ll find in this tier and you’ll be getting the best typical evening speed possible at 100Mbps to boot. 

Total minimum cost: AU$69 | Total cost for first year: AU$923.70

Best fast NBN 100 plan

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Spintel | NBN 100 | Unlimited data | No lock-in contract | AU$69p/m (first 6 months, then AU$84.95p/m) (opens in new tab)

As we've said above, this Spintel deal is not only the most affordable NBN 100 plan on the market at present, it also offers the maximum typical evening speed that this tier can handle – 100Mbps.

Total minimum cost: AU$69 | Total cost for first year: AU$923.70

Cheapest NBN 100 plan

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MyRepublic | NBN 100 | Unlimited data | No lock-in contract | AU$69p/m (first 6 months, then AU$79p/m) (opens in new tab)

The cheapest NBN 100 plan available right now is with MyRepublic - while it has the same initial discount as Spintel, the price after that is AU$79p/m (beating out Spintel's AU$84.95). If you're after the lowest price on an NBN 100 plan, this is it, but do note that it has a much lower typical evening speed at 80Mbps, compared with Spintel's 100Mbps.

Total minimum cost: AU$69 | Total cost for first year: AU$888

More NBN 100 deals

NBN 100 FAQ

How fast is NBN 100?

As its name suggests, NBN 100 offers download speeds up to 100Mbps, although actual usage will vary. 

While this meant that you'd see typical evening speeds around the 85-90Mbps mark when the service first launched, many providers are now claiming to offer the full 100Mbps typical evening speed.

As for uploads, most services offer a 20Mbps upload speed, but this will also vary depending on traffic and other factors (be sure to check with your service before signing up).

How much does NBN 100 cost?

The market has plenty of variety when it comes to cost for an NBN 100 plan. You won't be paying less than AU$70 per month for a plan from the likes of Spintel and Tangerine, and even then this is likely to be an initial discounted rate, so AU$85 is a better idea of what it'll cost after the discount period.

This ranges up to about AU$100 per month for more premium options (such as from Optus and Telstra), although these telcos typically sweeten the deal by offering other inclusions or discounts.

Can I get NBN 100?

While all connection types can sign up for NBN 100, 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. 

Some providers offer a trial period to test their service, so be sure to make use of this if it's an option.

What providers have NBN 100?

Almost every provider offering an NBN service is offering the NBN 100 tier as its top-rung option, with only a select few telcos offering the superfast and ultrafast NBN 250 and NBN 1000 above it.

This means that Telstra, Optus, TPG, Tangerine, Spintel, Dodo and plenty of others all have compelling NBN 100 plans to choose from.

NBN 50 vs NBN 100?

As with any purchasing decision, the 'better' option won't be better for everyone. For light internet users, households of two that stream and don't plan to use it for anything more intensive, NBN 50 is likely to be more than enough.

But for anyone currently running into congestion or that wants their download 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 NBN 50's case.

Harry is an Australian Journalist for TechRadar with an ear to the ground for future tech, and the other in front of a vintage amplifier. He likes stories told in charming ways, and content consumed through massive screens. He also likes to get his hands dirty with the ethics of the tech.