If you’re searching for the cheapest NBN plans in Australia for 2026, you’ve probably noticed that many providers advertise extremely low introductory prices that only last for six months before increasing significantly.
While promotional discounts can look attractive, the real question is:
What will you be paying after the promotion ends?
That’s where Cmobile stands out.
For a limited time, Cmobile is offering its popular NBN 25/10 Fibre plan for just $59 per month ongoing when you use promo code WINTER26 at checkout. Unlike many competing offers that increase after six months, this price continues month after month, making it one of Australia’s best-value NBN Fibre plans.
Why Ongoing Pricing Matters
Many NBN providers advertise plans from $39 to $49 per month, but these are often introductory discounts that expire after six months.
For example:
| Provider | Introductory Price | Ongoing Price |
|---|---|---|
| SpinTel NBN 25 | $51/month for 6 months | $64.95/month thereafter |
| Tangerine NBN 25 | $44.90/month for 6 months | $69.90/month thereafter |
| Flip NBN 25 | $48/month for 6 months | $65.90/month thereafter |
| Cmobile NBN 25/10 Fibre | $59/month ongoing with WINTER26 | $59/month ongoing |
Many comparison websites focus heavily on introductory discounts, but customers often experience bill shock when prices rise after the promotional period ends. Recent comparisons show that many NBN 25 deals revert to prices between $64.95 and $69.90 per month after the discount period expires.
With Cmobile, you know exactly what you’ll pay each month.
Cmobile Fibre NBN Plans
All Cmobile Fibre NBN plans include:
- Unlimited data
- No lock-in contracts
- Australian-based support
- BYO compatible modem
- Fast activation
- Reliable NBN Fibre connections
Economy Fibre 20/2
$59/month
Perfect for:
- Light internet users
- Web browsing
- Social media
- Single-person households
NBN 25/10 Fibre
$69/month standard
$59/month ongoing with promo code WINTER26
Ideal for:
- Small households
- HD streaming
- Video calls
- Working from home
- Everyday internet use
NBN 50/20 Fibre
$85/month
Great for:
- Families
- Multiple users
- Streaming across several devices
- Remote work
NBN 500/50 Fibre
$89/month
Excellent for:
- Large households
- Gamers
- 4K streaming
- Heavy downloads
NBN 1000/100 Fibre
$119/month
Designed for:
- Power users
- Content creators
- Home businesses
- Ultra-fast downloads
NBN 2000/200 Hyper Fast Fibre
$169/month
The ultimate fibre experience for:
- Maximum performance
- Large families
- Professional content creation
- Business-grade home connectivity
Why NBN 25 Remains Australia’s Most Popular Budget Fibre Plan
For many Australians, NBN 25/10 offers the perfect balance between performance and affordability.
An NBN 25 plan is suitable for:
- Streaming Netflix and YouTube in HD
- Video conferencing
- Online shopping
- Social media
- General web browsing
- Smart home devices
Industry comparisons continue to position NBN 25 as one of the most affordable speed tiers available for everyday households.
The Hidden Cost of Introductory Discounts
When comparing cheap NBN plans, it’s important to calculate your annual cost rather than focusing on the first six months.
For example:
A provider offering:
- $44.90/month for 6 months
- Then $69.90/month ongoing
May appear cheaper initially, but your average monthly cost over the first year becomes much higher than the advertised promotional price.
Cmobile’s WINTER26 offer avoids this problem by delivering a straightforward ongoing price.
Why Choose Cmobile for Fibre NBN?
Australian-Based Support
Speak to local support staff when you need help.
No Lock-In Contracts
Stay because you want to, not because you’re locked into a contract.
Honest Pricing
No confusing promotional structures or hidden surprises.
Great Value Fibre Plans
Competitive pricing across all Fibre speed tiers.
Bundle & Save
Existing Cmobile mobile customers can save even more when bundling eligible services.
How to Get the $59 NBN Deal
Getting started is easy:
- Visit Cmobile.com.au
- Select the NBN 25/10 Fibre plan
- Enter promo code WINTER26 at checkout
- Complete your order online
- Enjoy one of Australia’s best-value ongoing NBN Fibre deals
Final Thoughts
If you’re comparing the cheapest NBN plans in Australia for 2026, don’t just look at the promotional price.
Look at what you’ll actually pay after six months.
While many providers advertise temporary discounts before reverting to higher monthly fees, Cmobile’s NBN 25/10 Fibre plan for $59 per month ongoing with promo code WINTER26 delivers exceptional long-term value without the bill shock.
For Australians wanting affordable, reliable Fibre broadband with honest pricing, Cmobile remains one of the strongest value providers in the market.