The short answer
What an NBN plan really sells you
An NBN plan sells you a speed tier (NBN 25, 50, 100, 250 or 1000), and most people pick one by reading the big number and matching it to their budget. That is the wrong way round. The tier sets the ceiling on your line, but it does not promise the speed you will actually get on a Tuesday night, because NBN Co (the government-owned wholesaler that runs the network) sells your retailer two separate things: an access charge for the tier, and a pool of shared bandwidth. How much of that shared bandwidth your retailer buys per customer is what decides whether your evening speed sits near the tier or crawls. This page explains how NBN pricing really works, why the Typical Evening Speed matters more than the tier name, and how to choose a plan that holds up when the whole street is online at 8pm.
Here is the core takeaway in one line: an NBN speed tier is a wholesale price ladder set by NBN Co, not a guarantee of the speed you get, and the honest number to compare between plans is the Typical Evening Speed, not the tier label. That single idea fixes the two things people get wrong: they buy the biggest tier they can afford and assume they will see that speed (they will not, at 8pm), and they treat two plans on the same tier as identical (they are not, because each retailer chooses how much shared bandwidth to buy per customer). Pick the tier for your household, then choose the retailer by its evening speed.
Reframe the assumption: the tier number is the ceiling, not the floor. NBN 100 means your line can reach 100 Mbps, but whether it holds near that at peak time depends on a business decision your retailer makes about bandwidth. Compare on the Typical Evening Speed and you are comparing what you will actually experience.
The blind spot
Why most NBN guides steer you wrong
Most "best NBN plans" articles do one of three unhelpful things, and each one leaves you paying for a number you will not see.
First, they rank plans by the tier and the headline price. They line up NBN 100 plans cheapest to dearest and call the cheapest the winner, as if every NBN 100 line behaved the same. It does not. The cheap one might come from a retailer that skimps on bandwidth, so it congests the moment the street comes home.
Second, they treat the tier ceiling as the real speed. They quote "up to 100 Mbps" and stop there, ignoring that the speed you care about is the one at 8pm on a weeknight, when demand peaks. The maximum is a lab number; the evening speed is your number.
Third, they ignore your connection technology. A guide will recommend NBN 250 or NBN 1000 without checking whether your address can even reach it. A Fibre to the Node (FTTN) line that runs the last stretch over old copper physically cannot hit the top tiers, so paying for them wastes money. The tier you should buy is capped by the technology at your address, not by your wishlist.
How NBN pricing is built, piece by piece
Expert analysis: what really decides your NBN speed
NBN Co sells two things, and only one is the tier
The NBN is a wholesale monopoly. NBN Co owns the network and does not sell to you directly; it sells to retailers (the industry calls them RSPs, or Retail Service Providers) such as Telstra, Optus, Aussie Broadband, TPG and dozens of smaller telcos. Crucially, it sells them two separate ingredients. The first is an access charge for the speed tier on your line, which sets the ceiling. The second is a pool of shared bandwidth that carries everyone's traffic through the local exchange point. Think of the tier as the width of your driveway and the shared bandwidth as the number of lanes on the road it joins: a wide driveway is useless if the road is jammed.
The shared bandwidth your retailer buys is the whole game
Here is the part that decides everything. The shared bandwidth (its technical name is CVC, Connectivity Virtual Circuit) is a cost the retailer chooses how much of to buy per customer. Buy generously and your NBN 100 line stays near 100 Mbps even at peak; buy stingily to protect margin and the same line slows badly when the neighbourhood logs on after dinner. This is why two NBN 100 plans at similar prices can feel like different products. The congestion is not an NBN fault, it is a retailer's spending decision, and it shows up in one published figure: the Typical Evening Speed.
Typical Evening Speed is the honest metric, and it is mandatory
Because the tier alone misled buyers, retailers are now required to publish a Typical Evening Speed (TES): the download speed you can expect during the busy hours of 7pm to 11pm. The Australian Competition and Consumer Commission (the ACCC) also runs a programme called Measuring Broadband Australia that tests real homes and reports which retailers hold their speed at peak. The TES is the number that already bakes in the retailer's bandwidth decision, which is exactly why it beats the tier label for comparing plans.
Your connection technology, and the 2025 speed upgrade
The last piece is physical. The NBN reaches homes by several technologies, and they are not equal. Fibre to the Premises (FTTP) and most Hybrid Fibre Coaxial (HFC) can reach the top tiers; Fibre to the Node (FTTN) runs the final stretch over copper and often cannot exceed NBN 50 or NBN 100. This matters more than ever because, from late 2025, NBN Co lifted the wholesale speeds on eligible FTTP and HFC lines at no extra wholesale cost, pushing the Fast tier toward 500 Mbps, Superfast toward 750 Mbps and Ultrafast toward 2000 Mbps. If your line can take it and your retailer passes it on, the same tier name now buys far more; if you are on FTTN copper, none of it reaches you. Check your address technology before you pay for a top tier.
Interactive explainer
NBN speed tier recommender
Tell it how your household uses the internet at the same time, and it suggests a tier plus the Typical Evening Speed to look for. It works from concurrent demand, the thing that actually decides which tier fits, not a single user.
Find the NBN tier that fits your household
Indicative only. Always confirm the Typical Evening Speed on the actual plan before you sign up.
What else happens on the network?
Suggested tier
We add up the bandwidth your simultaneous activities need (about 25 Mbps per 4K stream, plus headroom for working from home, gaming and large transfers), then suggest the lowest tier that comfortably covers it at peak. Choose a plan whose Typical Evening Speed is at or above the figure shown.
Assumptions: 4K stream ~25 Mbps, HD stream ~7 Mbps, video call ~5 Mbps, with a 30% peak headroom buffer. Prices are indicative 2026 ranges and vary by retailer. Sources: NBN Co wholesale pricing, ACCC Measuring Broadband Australia, Canstar Blue 2026.
| Speed tier | Max download | Typical evening speed | Indicative price/mo | Best for |
|---|---|---|---|---|
| NBN 25 (Standard) | 25 Mbps | ~20 to 25 Mbps | $60 to $70 | A solo household or couple, browsing, social media and one HD stream at a time. |
| NBN 50 (Standard Plus) | 50 Mbps | ~45 to 50 Mbps | $70 to $80 | The popular middle: a small family streaming HD on a few devices at once. |
| NBN 100 (Fast) | 100 Mbps | ~90 to 100 Mbps | $80 to $95 | A busy household with 4K streaming, gaming and people working from home. |
| NBN 250 (Superfast) | 250 Mbps | ~210 to 250 Mbps | $95 to $110 | Heavy users on FTTP or HFC who move large files or stream in 4K across many rooms. |
| NBN 1000 (Ultrafast) | 1000 Mbps | ~250 to 600 Mbps | $110 to $130 | The fastest tier, only on FTTP and most HFC; advertised evening speeds vary widely. |
What this looks like in real homes
How the tier trap plays out for real households
The mechanics above are not theory. They are exactly how Australian households end up overpaying or underwhelmed:
The cheap NBN 100 that crawls at 8pm
A share house picks the cheapest NBN 100 plan on a comparison list. It runs fine in the morning, then slows to a stutter every evening when the suburb logs on. The tier was right; the retailer simply bought too little shared bandwidth, and the published Typical Evening Speed quietly said so all along.
The NBN 1000 plan wasted on copper
A renter on a Fibre to the Node line signs up for NBN 1000 chasing the big number. The copper between the node and the home caps the line far below the tier, so they pay top-tier prices for speeds an NBN 100 plan would have delivered. The technology at the address, not the plan, set the limit.
The family that overbought the tier
A couple with no kids buys NBN 250 "to be safe". They never run more than one stream at a time, so they could not tell it apart from NBN 50, except on the bill. They were paying for concurrent demand they do not have.
The switch that fixed it for free
A family stuck on a congesting plan moves to a retailer with a higher Typical Evening Speed on the same NBN 100 tier. No new cabling, no install, same monthly ballpark, and the evening stutter disappears. The fix was the retailer, not the tier.
The insider insight
Congestion is a retailer's choice, and the TES is the receipt
Here is the part most NBN guides never say out loud. When your connection slows every evening, the instinct is to blame "the NBN". But the network can carry the speed; whether your retailer paid for enough shared bandwidth to deliver it at peak is a margin decision made in a spreadsheet, not a fault in the fibre. Retailers that buy generously can hold the tier at 8pm; retailers that squeeze it pocket the difference and hope you do not notice. The Typical Evening Speed is the one number where that choice becomes visible, which is exactly why it exists and exactly why a lazy retailer hopes you read the tier instead.
The non-obvious truth: on the NBN you are really buying two things, a tier and a retailer's bandwidth habit, and only the second decides your evening experience. The households that get the best value pick the tier from their concurrent demand, then choose the retailer with the highest Typical Evening Speed for that tier, ignoring the headline "up to" number entirely. Because internet has no price cap, the gap between a sharp plan and a stingy one is wider than most people assume.
The practical consequence: never compare NBN plans on the tier and the sticker price alone. Two plans wearing the same tier can be different products, and the evening speed is the label that tells them apart.
Grounded in the analysis
What you should actually do when choosing an NBN plan
Specific moves that follow from how NBN pricing is built, not generic advice.
Pick the tier from concurrent demand
Count what runs at the same time at 8pm, not how many people live there. One or two light users sit on NBN 25 or NBN 50; a busy home with 4K streaming, gaming and working from home wants NBN 100. Use the recommender above to size it.
Check your connection technology first
Look up the technology at your address. If it is Fibre to the Node copper, do not pay for NBN 250 or NBN 1000 it cannot reach. If it is FTTP or HFC, you may be eligible for the 2025 speed boost on the same tier.
Choose the retailer by evening speed
Among plans on your chosen tier, compare the Typical Evening Speed, not the headline maximum, and lean on the ACCC Measuring Broadband Australia results. Most plans are month to month, so if the evening speed disappoints, switch with no new install.
Not sure what you are getting now? Run our internet speed test, then check whether home wireless broadband is an option at your address.
Current figures, last updated 2026-06-16
Indicative Australian NBN figures for 2026. Sources: NBN Co wholesale pricing, the Australian Competition and Consumer Commission (ACCC) Measuring Broadband Australia programme, and Canstar Blue 2026. Prices and evening speeds vary widely by retailer and by the connection technology at your address.
The bottom line
Why the tier is the start of the decision, not the end
An NBN speed tier tells you the ceiling on your line and roughly what you will pay, and that is genuinely useful for sizing a plan to your household. But it is a wholesale price ladder, billed by a monopoly that separately sells your retailer the shared bandwidth that actually decides your evening speed. So pick the tier from your concurrent demand, confirm your connection can reach it, then choose the retailer by its Typical Evening Speed. With NBN Co's 2025 upgrade now flowing through to eligible fibre lines and no price cap on internet to rein in the laggards, the gap between a well-chosen plan and a poorly chosen one has only widened into 2026.
Common questions
A Selectra expert answers your NBN questions
Match the tier to how many things happen on the network at the same time, not to a single user. As a rough guide: a solo household or couple is comfortable on NBN 25 or NBN 50; a family streaming HD on several devices wants NBN 50; and a busy home with 4K streaming, gaming and people working from home is happiest on NBN 100. NBN 250 and NBN 1000 only pay off if you genuinely move large files or run many heavy streams at once, and only on the connection types that can reach them. The number that matters is concurrent demand, which is why most Australian homes land on NBN 50 or NBN 100.
Typical Evening Speed (TES) is the download speed a retailer says you can expect during the busy hours of 7pm to 11pm, when the most people are online. Retailers are required to publish it, and it is the single most useful number on a plan, because it reflects real-world congestion rather than the tier ceiling. Two plans on the same NBN 100 tier can advertise very different evening speeds, and that gap usually comes down to how much shared bandwidth the retailer buys per customer. Always compare the evening speed, not just the tier name.
Because the tier is only half the picture. NBN Co charges your retailer an access fee for the speed tier on your line, then separately sells shared bandwidth (called CVC) into each Point of Interconnect. The retailer decides how much of that shared bandwidth to buy per customer. Buy plenty and the plan holds its speed at 8pm; skimp on it and the same NBN 100 line slows to a crawl in the evening. So the difference between a sharp plan and a lazy one is a business decision your retailer makes, which is exactly what the Typical Evening Speed reveals.
Yes. From late 2025, NBN Co lifted the wholesale speeds on eligible Fibre to the Premises (FTTP) and most Hybrid Fibre Coaxial (HFC) lines at no extra wholesale charge: the Fast tier moved toward 500 Mbps, Superfast toward 750 Mbps, and Ultrafast toward 2000 Mbps. The catch is that you only get the boost if your connection type supports it and your retailer passes it on, so a Fibre to the Node (FTTN) line on copper sees none of it. This is why your connection technology now matters as much as the tier you choose.
In almost all cases, yes. The physical NBN connection at your address stays the same; switching providers just changes who bills you and who provisions the bandwidth. Most NBN plans are now month to month with no lock-in contract, so you can leave a plan that congests in the evening and move to one with a higher Typical Evening Speed without any new cabling or installation. The main thing to check is whether you own your modem or need one from the new provider.
Sometimes, but only if its Typical Evening Speed holds up. A cheap NBN 50 plan from a retailer that buys plenty of bandwidth can beat a dearer one that does not. The trap is buying on the headline price alone and discovering the evening speed collapses when you need it. Compare the price against the evening speed, not the tier label, and remember that with no price cap on internet the spread between a sharp plan and a poor one is wide.
