Cheapest nbn® 25 Plans in Australia (August 2026)

If you only need internet for browsing, email, HD streaming and video calls, the nbn® 25 speed tier is the cheapest way to get a proper fixed-line connection. It’s also the tier where providers play the hardest games with pricing.

Almost every “cheapest nbn 25 plan” you’ll see advertised is a six-month teaser rate. The headline number looks brilliant. Then month seven arrives, the discount drops off, and your bill jumps by $20 to $30 a month.

So this comparison does something most don’t: it shows you the advertised price, the ongoing price, and what you’ll actually pay over 12 and 24 months. Prices are correct as at August 2026.

Quick answer: the cheapest nbn 25 plans right now

• Cheapest advertised (promo) price: Dodo at $43.99/month for the first six months, then $73.99/month.
• Cheapest ongoing price: Solitary Technology’s nbn® Basic Lite at $54/month — and it’s price locked until 1 July 2027, so there’s no six-month cliff.
• Next cheapest ongoing price: Moose nbn Value at $64.80/month, followed by Flip nbn Premium at $65.90/month.
• Average ongoing price for nbn 25 in Australia: roughly $74/month.

If you’re the sort of person who will diarise a reminder and switch providers every six months, chase the promos. If you’d rather set it and forget it, look at the ongoing price column and ignore the headline entirely.

Cheapest nbn 25 plans compared — August 2026

All plans below are unlimited data on the nbn® 25 speed tier (25Mbps download / 10Mbps upload maximum).

Sorted by advertised price, Dodo wins. Sorted by what you’ll be paying next winter, the picture changes completely.

The catch: the six-month cliff

Here’s the pattern almost every budget retailer uses:

1. Advertise a very low rate to win the sale.
2. Hold it for six months.
3. Revert to a standard price that’s often 50–70% higher.

Dodo’s plan goes from $43.99 to $73.99 — a 68% increase. Skymesh climbs 50%. SpinTel adds nearly $26 a month.

Comparison sites are upfront about the workaround: switch providers every six months, forever. That genuinely works if you have the patience for it. But it means a new account, a new modem configuration, possibly a new email address, a fresh credit check, and a service outage window each time — twice a year, indefinitely.

For a lot of households, especially retirees and anyone who just wants the internet to work, that’s not a saving. It’s a chore with a dollar value attached.

What you’ll actually pay: 12 and 24-month totals

This is the table that matters. It assumes you stay put — no switching, no renegotiating.

Solitary Technology’s $54/month is price locked until 1 July 2027. Figures above assume the current rate continues through year two. All other figures assume promotional rates run for six months (12 for Optus) and then revert to the provider’s standard price.

The plan with the cheapest advertised price — Dodo at $43.99 — ends up $300 more expensive over two years than a $54/month plan that never changes. That’s the whole point of looking past the headline.

Against the $74/month national average for nbn 25, a $54/month plan saves roughly $240 a year.

How Solitary Technology’s $54 nbn 25 plan compares

Our nbn® Basic Lite plan is $54/month, and it’s built to be the opposite of a teaser rate:

• $54/month, price locked until 1 July 2027 — the price you sign up on is the price you keep.
• 25Mbps download / 10Mbps upload on the nbn® 25 tier.
• Truly unlimited data — no caps, no shaping, no excess usage charges.
• No setup fees.
• No lock-in contract — the price is locked, you aren’t.
• 100% Australian support from our team in Coffs Harbour, not an offshore call centre.

We won’t win on the headline number — a handful of retailers will advertise $44 to get your signature. What we’ll win on is month seven, and month nineteen, when their rate has jumped $25 and ours hasn’t moved.

If your priority is the absolute lowest dollar figure this month and you’re happy to switch providers twice a year to keep it, chase the promos. If your priority is a small, predictable bill and someone local to call when something breaks, that’s the gap we’re built for.

See the $54 nbn® plan →

What to check besides the price

A cheap plan that doesn’t perform isn’t cheap. Before you sign anything, check these five things.

1. Typical evening speed

Every retailer must publish a typical evening speed — the speed you can realistically expect between 7pm and 11pm, when everyone is online at once. On nbn 25 the maximum is 25Mbps, and most retailers publish a typical evening speed at or very near that. Anything materially below 25Mbps is a red flag about how much network capacity the retailer buys.

This is where providers genuinely differ, even though they all resell the same nbn® network. We’ve written more about why your nbn provider still matters.

2. Setup and activation fees

Some budget plans hide a $59–$99 activation fee that wipes out months of savings. Ask directly whether there’s a setup fee, and whether it applies if you’re already connected to the nbn®.

3. Modem cost

A “free” modem is often bundled with a 12 or 24-month commitment, and you’ll pay it out if you leave early. If you already own a working modem, bring it — you can usually keep it. Our guide to router settings for Solitary Technology nbn® covers what you’ll need to configure.

4. Contract terms

Most cheap nbn 25 plans are month-to-month now, but check for minimum terms attached to hardware or promotional credits.

5. The Critical Information Summary

Every Australian telco must publish a Critical Information Summary (CIS) for each plan. It’s a short document listing the real price, the fees, the speeds and the exit conditions in plain language. If a provider makes it hard to find, that tells you something.

Is nbn 25 fast enough in 2026?

For a lot of households, yes — and more than people assume.

nbn 25 comfortably handles:

• HD streaming on Netflix, Stan, Disney+, Kayo and YouTube (HD needs about 5Mbps per stream)
• Video calls on Zoom, Teams, FaceTime and WhatsApp
• Web browsing, email, online banking and shopping
• Social media and music streaming
• Online gaming (gaming needs low latency far more than high bandwidth)
• Smart home devices, security cameras and smart speakers
• Working from home for one or two people

nbn 25 will struggle with:

• Multiple simultaneous 4K streams (4K needs roughly 15–25Mbps each)
• Large households where five or more people are online heavily at the same time
• Frequent very large downloads — game updates can run 100GB+
• Uploading large video files or running a home server
• Households doing several video calls at once while others stream

As a rough guide: 1–3 people, up to about five connected devices, one 4K stream at a time. Past that, step up a tier. Our guide on what nbn speed you need walks through every tier in detail.

nbn 25 after the September 2025 speed upgrades

In September 2025, nbn® pushed through its biggest speed increase in years. Home Fast went from 100/20Mbps to 500/50Mbps, Home Superfast from 250/25Mbps to 750/50Mbps, and a new 2,000Mbps Hyperfast tier launched — all at no extra wholesale cost.

nbn 25 (Home Basic II) was not changed. It stayed at 25/10Mbps.

That sounds like bad news, but it has a useful side effect: because the tiers above it got so much faster for the same money, the gap between nbn 25 and everything else widened — which makes nbn 25 the clear budget tier rather than a compromise position. If you genuinely only need 25Mbps, you now pay the least for it. If you need more, the value further up the ladder is better than it’s ever been.

Worth knowing if you’re on the fence: a lot of people sitting on old nbn 50 plans were automatically moved to much faster speeds. If you’re paying $80+ a month and only using a fraction of it, dropping to nbn 25 is often the bigger saving than switching retailers.

How to switch to a cheaper nbn 25 plan

Switching is simpler than most people expect, and you don’t need to contact your old provider first.

1. Check your current bill. Note the ongoing price, not the promo price you signed up on.
2. Check your address. Confirm the plan is available at your place and what nbn® technology you’re on (FTTP, HFC, FTTN, FTTC or FTTB).
3. Sign up with the new provider. They handle the transfer with nbn® Co.
4. Wait for the changeover. If you’re already connected to the nbn®, a transfer usually completes within a few hours on a business day. New connections may need an nbn® technician visit.
5. Reconfigure your modem with the new provider’s settings, or plug in the one they send you.
6. Confirm the old account is closed on your next bill.

There’s no need to cancel first — cancelling early can leave you without internet for days. Let the new provider pull the service across.

Frequently asked questions

What is the cheapest nbn 25 plan in Australia?

As at August 2026, Dodo has the cheapest advertised price at $43.99/month — but only for six months, after which it becomes $73.99/month. On ongoing price, Solitary Technology’s nbn® Basic Lite at $54/month is the cheapest in this comparison, and it’s price locked until 1 July 2027 so there’s no six-month jump at all.

Why do cheap nbn 25 plans get more expensive after six months?

Retailers use discounted introductory rates to win new customers, then revert to a standard price once the promotional period ends. Increases of $20–$30 a month are common. The discount is almost always restricted to new customers, so you can’t simply ask for it again.

Is 25Mbps fast enough for streaming?

Yes for HD. A single HD stream uses about 5Mbps, so nbn 25 can run two or three at once. 4K is a different story — one 4K stream can use 15–25Mbps, which will consume most of the connection.

How many people can use an nbn 25 plan at once?

One to three people is the comfortable range, covering roughly five connected devices doing normal things — browsing, HD streaming, video calls, gaming. Four or more heavy users at the same time will notice congestion.

Do cheap nbn 25 plans have data limits?

Almost all nbn 25 plans in Australia now include unlimited data. Check for “unlimited” explicitly, and check whether the provider shapes or throttles speeds after a threshold — a small number still do.

Can I switch from nbn 50 or nbn 100 down to nbn 25?

Yes. Downgrading is usually free and takes effect at your next billing cycle. If you’re on a plan you don’t use fully, this is often a bigger saving than switching providers. Here’s how to change your Solitary Technology nbn® plan.

Is nbn 25 available on my connection?

nbn 25 is available on all fixed-line nbn® technologies — FTTP, HFC, FTTN, FTTC and FTTB — and on nbn® Fixed Wireless and Sky Muster satellite in equivalent tiers. Check your address before signing up.

What speed do I actually get on nbn 25?

The tier maximum is 25Mbps download and 10Mbps upload. Your real-world speed depends on your retailer’s network capacity, your nbn® technology type, your in-home wiring and your Wi-Fi. FTTP and HFC connections generally hit the full 25Mbps; older FTTN lines occasionally fall short if you’re a long way from the node.

The verdict

If you want the lowest possible advertised price and you don’t mind switching providers twice a year, Dodo, SpinTel and Moose will get you under $45 a month — for six months at a time.

If you’d rather know what your bill will be next year, look at the ongoing price column instead. Solitary Technology at $54/month is the only plan in this comparison that doesn’t jump at all — $20 a month under the national average, held there until 1 July 2027.

For most people, nbn 25 is genuinely enough. Paying $74 a month for it isn’t.

Ready to switch? Our $54/month nbn® Basic Lite plan is price locked until 1 July 2027, with unlimited data, no setup fees, no lock-in contract and 100% local support.

Get the $54 nbn® plan →

Call us on 1300 914 278 9 Park Avenue, Coffs Harbour NSW hello@solitarytech.com.au

Competitor pricing correct as at August 2026 and sourced from publicly advertised rates. Prices change frequently — confirm current pricing and the Critical Information Summary on each provider’s website before signing up.