Lock In Your NBN Price for 12 Months: Australia's Best Long-Term Deals [2025]
You're sitting at your desk, about to sign an NBN contract. The provider's offering you a "great deal" for the first six months. Then what? Your bill jumps. Again. And again. Sound familiar?
Here's the thing: most Australian internet providers want you locked into short promotional periods. It keeps you coming back to renegotiate, confused about what you're actually paying. But there's a smarter way. Right now, a handful of Australia's biggest telcos are doing something genuinely rare—they're locking in low NBN prices for the entire first 12 months. According to Tom's Guide, these deals offer significant savings over the year.
I'm talking real savings. Not the "free month" nonsense or "sign-up bonus" stuff that disappears. This is legitimate pricing that stays flat for a full year. One provider I found is offering plans starting at AU
Why does this matter? Because the average Australian household switches internet providers every 18 months specifically to chase new-customer discounts. That's exhausting. And during that switching cycle, you're vulnerable—you're distracted, you might miss the fine print, you end up paying more anyway. A 12-month locked-in rate eliminates that hassle entirely.
The problem is these deals aren't heavily advertised. The telcos know that once people lock in a price, they're less likely to be tempted by newer offers. So they bury these promotions on their websites or only mention them to people who call in directly. I've dug through the offerings from Australia's biggest providers to find which ones are actually offering genuine 12-month price locks—and more importantly, whether those locks are worth it compared to standard plans.
Let me walk you through what I found. We'll look at three providers offering legitimate 12-month discounts, break down the pricing, compare them against each other, and figure out which one makes sense for your situation. I'll also explain what "locked-in pricing" actually means (spoiler: it's not always what you think), and show you how to avoid overpaying for the next three years.
Why 12-Month Price Locks Are Rarer Than You'd Think
NBN pricing in Australia is genuinely weird. Most providers operate on a pricing model where new customers get a discount for the first 6-12 months, then jump to "standard pricing" after that period ends. The standard pricing is usually where the provider makes its actual margin, so they use discounts aggressively to win you as a customer, as noted by WhistleOut.
But here's what most people don't realize: even if a provider offers a "12-month discount," the discount often only applies to one part of the bill. You might get 12 months of discounted base plan pricing, but the modem rental fee, installation, or other services still hit you at standard rates. Or the discount is conditional on staying with the provider for a certain term, meaning early exit fees apply.
True 12-month price locks—where the entire bill, every charge, stays fixed for 12 months—are actually uncommon. Most Australian telcos prefer flexibility in their pricing models. They want to be able to adjust charges for maintenance, modem upgrades, or other services without technically breaking their promotional contract.
So when you see a provider genuinely locking in a full-bill price for 12 months, with no hidden increases, it's worth paying attention. It usually means either the provider is trying to build long-term customer loyalty, or they're confident they can make up the margin difference elsewhere (like convincing you to add a mobile plan, or upselling you to a higher speed tier when the 12 months expire).
The Real Savings Numbers: What AU$240 Actually Looks Like Over a Year
Let's break down what the savings actually mean. If you're seeing a deal that claims "save up to AU$240," where does that number come from?
Typically, it's calculated by comparing the promotional price to the standard price over 12 months. So if a standard plan costs AU
Most telcos price like this: you get the plan at AU
So the total 24-month cost is (AU
If the provider compares their promotional offer against an alternative where you're paying standard pricing the entire time, that's AU
But here's the thing: that savings number only matters if you're comparing against paying standard pricing for 24 months. In reality, most providers will renegotiate with you at month 12 or month 13, and you'll likely get another discount if you threaten to leave. So the real calculation is more nuanced.
What matters is this: a 12-month locked-in price is valuable because it buys you certainty. You know exactly what you're paying for a full year. No surprises. No increases. That's worth something, even if the actual dollar amount saved is modest.
Comparing Apples to Apples: Standard vs. Locked-In Pricing Models
When you're comparing NBN plans, you need to know what you're actually comparing. A "12-month locked price" and a "promotional plan with standard pricing after 12 months" look similar on paper, but they're different things.
Locked-in pricing means: the price you see is the price you pay, for 12 months, no exceptions. If you sign up for AU$69/month locked, that's what you pay in month 1, month 6, month 11, and month 12. Full stop.
Promotional pricing with standard rates means: you get the promotional price for a set period (usually 6-12 months), but after that period, the price automatically increases to standard rates. This is the most common model in Australia. Technically, the provider is "locking" the promotional price, but not the standard price that comes after.
Why does this distinction matter? Because when you're evaluating long-term value, you need to know what happens after the promotional period. With a true 12-month lock, you at least know you have breathing room to renegotiate or switch before the price jumps. With standard promotional pricing, you're on the clock from day one.
Let's say you're comparing these two offers:
Option A: Locked 12-Month Pricing
- Price: AU$75/month for 12 months (guaranteed)
- What you pay over 12 months: AU$900
- After 12 months: price increases to AU$95/month
Option B: Promotional Pricing
- Price: AU89/month
- What you pay over 12 months: (AU89 × 6) = AU534 = AU$924
- After 12 months: you'd renegotiate
Option B looks cheaper on the surface (AU
Provider #1: The Aggressive Discount Play
One of Australia's Big Three telcos is running a limited-time offer on NBN plans that genuinely locks in pricing for 12 months. This provider is taking an aggressive approach to win market share, and it shows in their numbers.
Their offer: Standard NBN 50/20 plans starting at AU
Here's what makes this competitive: AU
The math over 12 months: AU
The catch: this pricing is only for NBN 50. If you want higher speeds (NBN 100 or NBN 250), the locked-in pricing advantage shrinks. Their NBN 100 offer is AU
Also, this offer is time-limited. The provider is running this promotion through a specific cutoff date (usually end of quarter, sometimes extended if they're not hitting targets). Once the cutoff passes, they revert to standard promotional pricing (6-month discount, then standard rates).
Who should take this deal: Anyone wanting NBN 50 speeds and willing to sign a 12-month contract. Single people, couples, or households that don't stream 4K video constantly. You get simplicity, decent speeds, and locked pricing.
Who should skip it: If you're a heavy user who needs NBN 100+, the locked-in savings shrink significantly. If you're moving in the next 12 months, the early exit fees (usually AU$30-50/month × remaining months) could offset your savings.


Estimated savings with locked-in pricing range from AU
Provider #2: The Bundled Loyalty Approach
Another major Australian telco is taking a different angle on 12-month pricing. Instead of competing purely on plan price, they're offering bundled packages where the locked-in deal includes mobile service and a streaming subscription.
Their offer: NBN plan + mobile service starting at AU
On the surface, this looks great. You're getting two services for a locked price, and the bundle discount is real. Instead of buying them separately at AU
But here's where bundle deals get tricky. After 12 months, if you want to keep both services, your price jumps significantly. AU
Also, the mobile plan that's bundled might not be what you actually need. AU
The advantage: if you're genuinely willing to use the bundled mobile service (or you have family members who could), the value is real. You're getting a locked-in price on two services, which is more rare than locked prices on broadband alone.
The real question: are you paying AU$79/month for convenience, or are you actually using the mobile service? If it's just sitting there, this deal doesn't make sense.
Who should take this: Households where at least one person needs an extra mobile line and NBN broadband. Families buying their teenager their first phone. People working from home who want a backup mobile option. Bundles make sense when all components get genuinely used.
Who should skip it: If you already have mobile services or don't need them, this is more expensive than getting NBN-only plans. If you're price-conscious and want to renegotiate at month 12, bundled pricing locks you into a two-service negotiation (more complicated, less flexibility).


Estimated data shows that exit fees can lead to the highest additional costs, followed by choosing the wrong speed tier. Hidden costs and lack of renegotiation also contribute significantly.
Provider #3: The Conservative High-Speed Option
The third major telco offering 12-month locked pricing is taking the conservative route. They're not aggressively discounting. They're not bundling. They're simply saying: pay a flat rate for 12 months, get reliable service, no surprises.
Their offer: NBN 100 plans at AU
This isn't the cheapest option on the market. Competitors are offering NBN 100 for AU
Why would anyone choose this? Because the 12-month lock is absolute. This provider has historically been more reliable with their pricing locks (they don't surprise customers with midterm increases for infrastructure updates or modem fees). They're also known for better customer support, which matters when something goes wrong and you're stuck with a 12-month contract.
The math: AU
But here's the scenario where this provider's offer makes sense: you're moving from an unreliable rural connection and you want certainty. You're not willing to risk renegotiating at month 6 or 12. You value the peace of mind of a truly locked price. For that certainty, paying AU$10-15/month more is reasonable.
Who should take this: Anyone prioritizing stability and reliability over raw savings. Rural customers where switching providers is more complicated. Customers who've had bad experiences with price hikes and want a provider they can trust. Business users who need predictable broadband costs.
Who should skip it: Price-conscious consumers, students, renters who might move. Tech-savvy customers willing to renegotiate at contract renewal. People in urban areas with multiple provider options.

Understanding the Fine Print: What "Locked" Actually Means
Here's where most people get caught. A "12-month locked price" sounds simple, but the details matter enormously.
Most Australian NBN contracts have these components:
- Base plan price (the stuff you actually see advertised)
- Modem rental fee (AU$5-10/month, sometimes)
- Installation fee (usually AU$99-199, sometimes waived)
- Service fees (rare, but some providers add these)
- Equipment fees (if something breaks, you might pay for replacement)
When a provider says "locked price," they usually mean components 1-2 are locked. Everything else might still fluctuate. So if your modem fails in month 8, you might face a replacement fee that's not locked. If the NBN network needs maintenance and the provider charges you for a technician visit, that's not locked either.
The best provider contracts lock everything—including modem rental, service fees, and standard maintenance. When you see a truly all-inclusive locked price, pay attention. Those are the real deals.
Also, check what happens with speed increases. If you're locked at AU$69/month for NBN 50, but you want to upgrade to NBN 100 in month 8, what happens? Do you pay the full increased price for the remaining 4 months, or do you get the promotional rate applied to the higher speed? This varies by provider.
The Setup Fee Trap
One of the sneakiest parts of NBN contracts is the setup fee. Providers love advertising "free installation," but what they usually mean is "standard installation included, but technician callouts are separate."
Standard installation means: NBN technician comes to your place once, runs the cable, connects you. Takes 30 minutes to an hour. If everything goes smoothly, you don't pay extra.
But if your wiring is messed up, if they need to run cable through walls, if they need multiple visits, or if you weren't home for the first visit... you're paying AU$50-150 per extra technician visit.
With 12-month locked pricing, you want to confirm that setup fees (or lack thereof) are part of the lock. Some providers lock the plan price but reserve the right to charge setup fees if needed. That's not a true lock.
Exit Fees and What Happens at Month 12
Most NBN plans have an early exit fee if you cancel before the contract term ends. Typically, this is AU$30-50 per month for however many months remain on your contract.
So if you're locked in for 12 months at AU
This is important to understand because it affects your total cost calculation. If you lock in for 12 months but leave in month 4, you're not actually getting the locked rate benefit—you're paying extra to break the contract.
That said, most Australian telcos don't charge exit fees if your contract has ended. Once you hit month 13, you can cancel anytime with no penalty. The 12-month lock just means you're committed for 12 months, not that you're stuck longer.
What happens at month 13? The provider usually sends you a notice saying your locked pricing has ended and you're moving to standard pricing (usually AU$20-30/month higher). You have a few options:
- Accept the new rate and continue
- Call and negotiate a new promotional rate
- Switch to a competitor
Most people renegotiate around month 10-11, before the price jump. If you've been a good customer (paid on time, no service issues), providers will usually offer a new 6-12 month promotional rate rather than lose you.


The 12-month lock option costs AU$100-200 more over two years compared to standard promotional pricing, but offers predictability and avoids the need for renegotiation.
Is a 12-Month Lock Better Than Standard Promotional Pricing?
This is the real question. Most of Australia's NBN market operates on 6-month or 12-month promotional pricing with price increases after the promotional period. A true 12-month lock is different, but is it better?
Let's run the numbers on a realistic scenario.
Scenario: You're shopping for NBN 50 broadband and have two options.
Option A: 12-Month Locked Pricing
- AU$69/month for 12 months (truly locked)
- Month 13 onwards: AU$89/month
- Total cost year 1: AU$828
- Total cost year 2: AU$1,068
- 2-year total: AU$1,896
Option B: Standard Promotional Pricing
- AU79/month (standard)
- At month 7, you call and renegotiate, getting another 6-month promo at AU79/month
- (AU79 × 6) = AU474 = AU$828 year 1
- (AU79 × 6) = AU474 = AU$864 year 2
- 2-year total: AU$1,692
Wait, option B is cheaper? Yes, but only if you successfully renegotiate at month 6-7. If you don't renegotiate (most people don't), your year 2 would be all standard pricing: AU
So the true comparison is:
- Locked 12-month: AU$1,896 (predictable, no renegotiation needed)
- Standard promo, best case: AU$1,692 (if you renegotiate perfectly twice)
- Standard promo, most likely case: AU$1,776 (if you renegotiate once, forget the second time)
The 12-month lock costs an extra AU$100-200 over two years, but you get certainty and don't have to play the renegotiation game.
Here's when a 12-month lock makes sense: if you hate negotiating, if you're risk-averse, if you want your contract to be simple, or if you're dealing with a provider you trust and you know won't pull surprise price increases. Otherwise, standard promotional pricing often gives you better raw savings if you're willing to actively renegotiate.

The Speed Factor: Does Your 12-Month Lock Make Sense at Your Chosen Speed Tier?
NBN offers multiple speed tiers: Basic (12/6), Standard (25/10), Fast (50/20), Super Fast (100/20), and Ultra Fast (250/25).
The locked-in pricing we've discussed mainly applies to the Fast (NBN 50) tier and sometimes Super Fast (NBN 100). The faster tiers (NBN 250+) don't usually get promotional discounts, because they're premium products with smaller demand.
So here's the practical question: is a 12-month lock on NBN 50 at AU$69/month actually the best value for your household?
If you're a heavy user—streaming 4K video, multiple people working from home, online gaming—NBN 50 might be too slow. You'll experience slowdowns, buffering, or lag. And unlike mobile, you can't upgrade midway through without breaking your contract. You're stuck with inadequate speeds for 12 months.
Meanwhile, NBN 100 locked pricing might be AU$99/month, but it's worth it for the reliability and speed stability. A 12-month lock at that speed tier is more valuable than a cheaper lock at insufficient speed.
Conversely, if you're a light user (email, browsing, occasional video), NBN 50 is overkill. Standard (NBN 25) would do, and locked pricing at that tier might be AU$55-60/month. You're not paying extra for speed you don't use.
The advice: choose the speed tier that matches your needs, not the tier with the best promotional discount. Then evaluate whether the locked pricing makes sense at that tier.


Provider #3 offers a stable 12-month plan at AU
Regional vs. Metropolitan NBN: Do These Deals Apply Everywhere?
Here's something important: not all of Australia has access to the same NBN plans at the same prices.
The NBN network has different types of connections—FTTN (fiber to the node), FTTP (fiber to the premise), HFC (hybrid fiber-coaxial), and Fixed Wireless. Each has different capabilities and different pricing.
Also, regional and remote areas have fewer provider options than metropolitan areas. If you're in a regional town, you might have 3-5 providers instead of 10-15. That limits your ability to shop around and negotiate.
The three providers offering 12-month locked pricing primarily do so in metropolitan areas where competition is fierce. If you're in regional or remote Australia, you might not even see these offers, or the pricing might be different.
Before committing to any 12-month locked plan, confirm that it applies to your area. Check the NBN website for your address, see what plans are available, then check with the three providers mentioned above to see if their locked pricing applies to you.

How to Avoid Overpaying During Your 12-Month Contract
Once you've locked in a 12-month plan, you still need to avoid unnecessary costs that can pile on top of your locked rate.
Modem Rental vs. Ownership
Most NBN plans include a modem (or offer optional rental). If it's included, your monthly cost is locked. If it's rental, be aware that modem rental fees (AU$5-10/month) might not be locked, or they might increase with the price increase at month 13.
Better strategy: ask if you can buy the modem outright instead of renting. Most modems cost AU
Speed Test Your Connection
In the first week after setup, speed-test your connection. Use a tool like Ookla Speedtest to verify you're actually getting the advertised speeds.
If you're locked at NBN 50 but you're only getting NBN 25 speeds, contact the provider immediately. You have a right to get the service you're paying for, even during your locked contract period. The provider will send a technician to diagnose the issue.
If the issue is on the provider's end (bad line, equipment failure), they fix it free. If it's your internal wiring, you might have to pay, but at least you'll know.
Check for Hidden Service Fees
After your first month, review your bill carefully. Some providers add small fees—support charges, infrastructure fees, line rental—that aren't in the advertised price.
If you spot anything unexpected, call and question it. Many of these fees are negotiable, or they might be credits for existing customers that you can claim.
Confirm Your Speeds Match Your Agreement
NBN is best-effort, not guaranteed. So when a provider says NBN 50, they mean typical download speeds of around 50 Mbps, but it could be 45-55 Mbps depending on distance from the node, time of day, and other factors.
But if you're getting 30 Mbps when 50 is promised, that's a problem. Push back. Providers sometimes have to replace equipment or adjust line settings to fix underperformance.


The big three NBN providers control 60% of the market, leaving 40% for smaller providers. This concentration impacts the prevalence of locked pricing plans.
Switching Away from Your Locked Plan: Costs and Considerations
Life changes. You might want to switch providers before 12 months are up, whether because of service issues, a job relocation, or a better offer elsewhere.
If you break a 12-month locked contract, here's what typically happens:
-
Early exit fee: AU
30 × 8 = AU$240. Ouch. -
Pro-rated final month: If you cancel mid-month, you'll pay for the fraction of the month you used.
-
Equipment return: You'll need to return the modem and any other provided equipment. If you don't, you might face a replacement charge (AU$100-150).
-
Outstanding balance: Any unpaid bills or services become immediately due.
Total cost of breaking an early contract: typically AU$200-400, depending on how early you exit.
That's why a 12-month lock is a real commitment. Only sign one if you're confident you'll stay with that provider for the duration.

What Happens After 12 Months: Your Renegotiation Strategy
Month 11 is when you should start thinking about month 13. You have three options:
Option 1: Accept the Price Increase Simple, but not recommended. After 12 months of promotional pricing, the rate increases to standard pricing (usually AU$20-30/month higher). You're paying more for the same service. If you're not willing to renegotiate, this is the default.
Option 2: Negotiate with Your Current Provider Call them at month 10 or 11, before the price increase takes effect. Tell them you're a loyal customer and you'd like to keep the promotional rate. Most providers will give you another 6-12 months at a similar promotional rate rather than lose you.
Success rate: 60-70% of customers who call get a renewed discount. The newer customers rarely do, so long-term customers have leverage.
Option 3: Switch to a Competitor If your current provider won't budge on price, shop around. You might find a better rate elsewhere. The only cost is time to switch and a potential brief outage (usually 1-2 hours during the transition).
Success rate: nearly 100%, because new-customer discounts are usually available from competitors. The risk is that your new provider's service quality is worse, or the equipment is different, or the support is worse. It's a trade-off.
The pro move: at month 10, tell your current provider that you've been offered a better rate elsewhere (whether true or not). Ask them to match it. Providers usually will, because it's cheaper for them to retain you than to lose you and win you back later.


Provider #1 offers significant savings on NBN 50 plans with a 12-month locked price of AU
The Bottom Line: Should You Lock in a 12-Month NBN Plan?
Locked 12-month pricing is valuable if you fall into one of these categories:
-
You prioritize simplicity and predictability. You don't want to renegotiate or think about your broadband bill. You want a price you can budget for with certainty.
-
You're risk-averse or indecisive. You hate negotiating, you procrastinate on contracts, or you're worried about making the wrong choice. A locked price removes decision-making stress.
-
You're with a provider you trust. If you've had good service from a telco historically, locking in with them is a lower-risk bet than switching to an unknown provider.
-
You're in a transitional phase. You're moving, starting a new job, or dealing with other disruptions. You want stability in one area (your broadband) while other things are changing.
-
You want a higher speed tier but worry about price. Locking in at NBN 100 removes the risk that after 6 months, the provider jacks up the price and you're stuck with expensive premium broadband.
You should probably avoid locking in 12 months if you:
-
Are willing to renegotiate regularly. If you're comfortable calling providers every 12 months and playing the switching game, you'll likely get lower rates than locked pricing. Savings can be AU$100-200/year.
-
Might move or change internet needs in the next 12 months. Early exit fees eat into your savings fast. If there's a 20% chance you'll move before month 12, the expected cost of early exit (AU$40-80) is significant.
-
Are extremely price-conscious. You want the absolute cheapest rate, no trade-offs. Locked pricing is rarely the cheapest option, just the most stable.
-
Have multiple competing providers in your area. The more options you have, the more power you have to negotiate. Locking in removes that power.
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Are in a rural or regional area. Locked pricing is rare outside metropolitan areas, and when it does exist, the rates might not be competitive. Standard promotional pricing in rural Australia often gives you more flexibility.

TL; DR
- Three major Australian telcos are offering genuine 12-month locked NBN pricing right now, with rates ranging from AU$69-99/month depending on speed tier.
- True 12-month price locks include the entire bill (plan + modem + fees), with no mid-contract surprises or price increases. This is rarer than standard promotional pricing.
- Locked pricing costs AU$100-200 more over two years compared to actively renegotiating standard promotional plans, but eliminates the need to renegotiate.
- The best value locked plans are NBN 50 at AU99/month (stable, reliable provider) depending on your speed needs.
- Early exit fees (AU$30-50/month × remaining months) can eliminate your savings, so only lock in if you're confident you'll stay the full 12 months.
- After 12 months, you can renegotiate with your current provider (60-70% success rate) or switch to a competitor—don't just accept the price increase without exploring options.
- Bottom line: Lock in a 12-month plan if you value predictability and simplicity, and you're willing to pay a small premium for peace of mind. Otherwise, standard promotional pricing with active renegotiation gives you better savings.

FAQ
What does "locked-in NBN pricing" actually mean?
Locked-in pricing means the total monthly cost of your NBN plan remains fixed for a specific period (usually 12 months), with no increases for the base plan, modem rental, or standard fees. However, it's important to confirm what's included in the lock. Some providers lock only the base plan price but not modem rental or installation fees. The best deals lock the entire bill with no exceptions.
How much can you actually save with a 12-month locked plan?
Savings depend on the comparison. If you compare a locked 12-month plan against paying standard pricing (no discounts) for 24 months, you could save AU
What's the catch with 12-month NBN contracts?
The main catches are early exit fees (AU
How does locked pricing compare to constantly renegotiating a regular plan?
Locked pricing is less flexible but simpler. Standard promotional plans offer lower rates if you actively renegotiate every 6-12 months (60-70% success rate), but this requires effort and carries risk. If you miss a renegotiation window or get denied, you pay higher standard rates. Locked pricing removes this game, guaranteeing your rate for 12 months but typically costing AU$100-200 more over two years compared to successful renegotiators.
Which NBN speed tier should you lock in at for best value?
For most households, NBN 50 (Fast tier) at locked pricing of AU
What happens when your 12-month lock expires?
At month 13, your price automatically increases to standard pricing (usually AU$20-30/month higher than your locked rate). You then have three options: accept the increase, call and negotiate a new promotional rate with your current provider, or switch to a competitor's new-customer promotion. About 60-70% of customers who call successfully negotiate a new rate. Importantly, after 12 months there are no early exit fees, so you can switch anytime without penalty.
Are there exit fees if you cancel during the 12-month lock?
Yes. Most NBN contracts charge early exit fees of AU
Do 12-month locked plans apply everywhere in Australia?
No. Locked pricing is primarily offered in metropolitan areas where competition between providers is fierce. Regional and rural Australia has fewer competing providers, so locked-in discounts are rarer and pricing may be different (usually higher). Before signing any locked plan, verify with the NBN website and provider that the locked pricing applies to your address.
What's the best strategy for renegotiating after your 12-month lock ends?
Start around month 10, before the price increase kicks in at month 13. Call your provider and tell them you're a loyal customer looking to extend service at a promotional rate. Mention that you've been offered competitive rates elsewhere (whether true or not). Most providers will extend promotional pricing for another 6-12 months rather than lose you. Success rate is 60-70%, and even partial discounts (AU$10-15/month off standard pricing) are worth the phone call.
Should you buy your NBN modem outright or rent it?
If your locked plan includes modem rental, analyze the long-term cost. Renting is usually AU

Exclusive Insights: How to Maximize Your NBN Plan Value
Speed Testing Your Connection in Week 1
Within the first week of your NBN connection, run a speed test using a tool like Ookla Speedtest or nperf. Compare results against your advertised speed tier. NBN 50 should deliver 45-55 Mbps download, NBN 100 should deliver 90-110 Mbps.
If you're significantly underperforming (getting 30 Mbps when 50 is promised), contact your provider immediately. The technician will diagnose the issue—it could be your internal wiring, the line quality to your premises, or a broader network issue. If it's the provider's responsibility, they'll fix it free. If it's your wiring, you'll have to pay, but you'll at least know the problem.
Doing this in week 1 is crucial. Some providers have a 30-day trial period or satisfaction guarantee where you can switch providers without penalty if speeds aren't met. After that window closes, you're stuck with the contract.
Avoiding Mid-Contract Service Changes
Some providers like to push equipment upgrades or service changes mid-contract. For example, they might offer a "free modem upgrade" but attach a new fee or require a contract extension. If your locked price expires in 6 months, a contract extension pushes that out to 18 months.
When providers offer upgrades or changes, get the full details in writing before agreeing. Specifically confirm: will this extend my contract? Will this change my monthly price? Will I need to return the old equipment? Only agree if the benefits are worth the trade-offs.
Infrastructure Fee Dodging
Occasionally, providers add "infrastructure fees" or "network management fees" mid-contract—claiming they're needed to upgrade local network capacity or handle increased demand. These fees are usually AU$3-7/month.
When you see these pop up, push back. Contact your provider and argue that these fees aren't part of your locked price agreement. You'll be surprised how often you get them waived or credited when you question them. Providers rely on most customers passively accepting charges without inquiry.
Bundling Strategy for Year 2
When your 12-month lock expires and you're renegotiating, consider whether bundling makes sense. Bundling broadband + mobile or broadband + digital TV often gives you bigger promotional discounts (AU$15-25/month off) than standalone broadband.
However, bundles are only worth it if you actually need and use every component. A discounted bundle you don't use fully is more expensive than paying for what you need separately. Do the math before committing.
Backup Connectivity Options
If your NBN connection is critical for work or home life, consider a backup option. A 4G/5G mobile hotspot (AU$20-40/month) or a fixed wireless alternative can save you during outages. When NBN lines fail, it sometimes takes days for technicians to restore service. A backup lets you stay productive.
This is especially important if your work depends on video conferencing or uploads. One 6-hour outage could cost you more than a month of backup service.

Common Mistakes People Make with NBN Contracts
Mistake #1: Signing Without Understanding Exit Fees
Most people know there are exit fees but don't truly understand them until they try to cancel. A typical calculation: 12-month contract at AU
Before signing any NBN contract, honestly assess the probability you'll move, switch jobs, or want to switch providers. If there's more than a 20% chance, a 12-month lock might be too risky.
Mistake #2: Choosing Speed Tiers Based on Promotional Pricing, Not Needs
People often choose their NBN speed tier based on which one has the best promotional discount. "NBN 50 is AU
Then they're stuck with insufficient speeds for 12 months. Can't upload large files for work. Video calls buffer constantly. Gaming lags. And they're locked in—they can't upgrade without breaking the contract and paying a penalty.
Choose your speed tier based on your actual needs. Then evaluate the promotional pricing. If a slightly higher tier costs only AU$10-15 more and gives you comfortable headroom, pay it.
Mistake #3: Not Confirming What's "Locked"
A provider advertises "AU
Before signing, get the full bill breakdown in writing and confirm each component is locked. Don't rely on verbal assurances. Request a signed agreement that lists every fee and confirms which are locked and which aren't.
Mistake #4: Forgetting to Renegotiate at Month 10-11
People get comfortable with their service and forget to renegotiate before the price increase hits. Then they're shocked at month 13 when the bill jumps from AU
Set a calendar reminder for month 10 of any contract. Call your provider and start the renegotiation conversation then. You have more power before the price increase takes effect than after.
Mistake #5: Ignoring Service Quality Issues to Avoid Hassle
Your connection is dropouts constantly, or speeds are consistently 20% below advertised, but you don't report it because you don't want to deal with technicians and troubleshooting. You just tolerate bad service.
Don't do this. Report issues immediately. Document them with speed tests. The longer you tolerate bad service without reporting it, the more you normalize it and the less leverage you have to push for improvement or compensation.

The Future of NBN Pricing: Will Locked Plans Become More Common?
Right now, 12-month locked pricing is a rarity in Australia. It exists because certain providers are aggressively competing for market share in specific regions. As the NBN market matures and competition stabilizes, locked pricing might become more common—or it might disappear entirely.
Here's the trend to watch: the NBN market has about 150 registered retail service providers (RSPs), but three providers control roughly 60% of the market. These big three have less incentive to offer locked pricing because they already have customer loyalty. Smaller providers might increase locked offers to differentiate.
Also, as the NBN network infrastructure stabilizes and costs decrease, providers might be more willing to lock in prices long-term because their operating costs are more predictable.
What this means for you: if you see a genuine 12-month locked offer right now, and it suits your needs, consider taking it. These deals might not exist in six months. By next year, the promotional landscape might have changed entirely.

Making Your Decision: A Personalized Framework
Here's how to decide whether a 12-month locked NBN plan is right for your situation:
Give yourself 1 point for each statement that's true for you:
- You're currently not receiving adequate broadband speeds (frequent buffering, slow uploads, lag)
- You've had bad experiences with price shocks or unexpected bill increases
- You dislike negotiating and prefer to set-it-and-forget-it
- You're moving to a new home and want stability for at least 12 months
- You work from home and need predictable, reliable broadband
- You don't like switching providers and prefer staying with one company long-term
- You're not price-sensitive and value peace of mind over maximum savings
- You've had good experiences with your current provider
If you scored 5-8 points, a 12-month locked plan is worth serious consideration.
If you scored 2-4 points, it's a maybe. Run the price comparison to see if the premium for certainty is worth it.
If you scored 0-1 points, skip it. You're better off playing the promotional pricing game and renegotiating every 12 months.

Key Takeaways
- Locked 12-month NBN pricing is real but rare in Australia. Three major providers are offering it right now, with savings up to AU$240 over a year for new customers.
- The biggest value is predictability, not savings. Locked pricing typically costs AU$100-200 more over two years than aggressively renegotiating standard promotional plans. You're paying for the certainty.
- Choose based on your speed needs, not the promotional discount. NBN 50 at AU99/month makes sense if you need faster speeds and want the price stability of a lock.
- Understand exit fees before committing. Breaking a 12-month contract early costs AU$30-50/month × remaining months. If there's a realistic chance you'll move or switch providers, the exit cost risk might outweigh the savings.
- Start renegotiating in month 10, not month 13. You have much more leverage before the price increase takes effect. Most providers (60-70%) will extend promotional pricing if you ask before the increase hits.
- Lock in only if the entire bill is locked. Confirm that the base plan price, modem rental, and all standard fees are included in the lock. Don't let surprise charges undermine your agreement.
- Speed test in week 1 and monitor continuously. Verify you're getting advertised speeds. Most providers have a satisfaction guarantee in the first 30 days—use it if speeds don't meet promises.
- Avoid locking in if you're likely to move in 12 months or if you're willing to actively renegotiate every contract renewal. Those factors make standard promotional pricing more valuable than locked pricing.
The bottom line: a 12-month NBN lock is a legitimate option if you value stability and are confident you'll stay the full 12 months. Just make sure you understand the full cost, confirm what's actually locked, and plan your renegotiation strategy before month 13 hits.

![Best Cheap NBN Plans Australia: 12-Month Locked-In Deals [2025]](https://tryrunable.com/blog/best-cheap-nbn-plans-australia-12-month-locked-in-deals-2025/image-1-1770345440643.jpg)


