Upload vs Download Speed: Why Australian Businesses Are Getting This Wrong

There is a common assumption baked into the way internet plans are sold in Australia: the bigger the number, the better the connection. A 250 Mbps plan sounds fast. A 1000 Mbps plan sounds extraordinary. And yet, businesses on both of those plans regularly find themselves frustrated. Video calls break up. Cloud backups take days. OneDrive grinds to a standstill. The phone system sounds like the caller is underwater.

The culprit is almost always upload speed — the number that barely gets mentioned in the plan name, buried in the fine print, and rarely questioned until something stops working.

This article explains what upload and download speeds actually mean, why NBN was designed the way it was, which business applications are most affected, and what Australian businesses can do about it.

What Download Speed Actually Measures

Download speed is the rate at which data travels from the internet to your device. When you load a website, the HTML, images, and scripts all arrive via download. When you watch a YouTube video or a Netflix series, every frame is delivered as downloaded data. When a colleague sends you a large file over email and you open it, you are downloading it.

This is the direction that feels most like "using the internet" for most people, and it is the direction that internet service providers have always prioritised in their marketing. A plan described as "100 Mbps NBN" almost certainly means 100 Mbps of download speed. The upload figure — typically 20 Mbps on that plan — appears in a smaller font, if it appears at all.

Download speed matters enormously for consumer internet use. A household streaming four simultaneous 4K videos needs a robust download connection. The same is true of online gaming, video-on-demand services, and downloading software updates. For those use cases, the asymmetric design of most NBN plans is a reasonable match for actual behaviour.

The problem is that business internet use looks very different.

What Upload Speed Actually Measures

Upload speed is the rate at which data travels from your device to the internet. It is the direction that governs nearly everything a modern business does with its technology infrastructure.

When you make a video call on Microsoft Teams or Zoom, your camera footage, microphone audio, and screen share all leave your device as uploaded data. The clarity of your video — the quality your colleagues and clients see on their end — is entirely determined by your upload speed, not your download speed.

When a file is saved to OneDrive, SharePoint, or Google Drive, it is being uploaded. When your accounting system syncs records to the cloud, that is an upload. When your backup software copies your server data overnight to Veeam, Acronis, or Backblaze, every gigabyte of that backup traverses your upload pipe. When your VoIP phone system transmits a call, the audio leaving your phone travels as an upload stream — and because VoIP is latency-sensitive, even a brief upload bottleneck can cause audio to drop, delay, or distort.

For businesses operating in the cloud — which in 2025 means virtually all businesses — upload is not a secondary concern. For many workloads, it is the primary one.

Yet most Australian businesses are on NBN plans that give them a fraction of their download capacity in the upload direction. Understanding why requires a brief look at how NBN was designed.

Why NBN Upload Speeds Are So Much Lower

NBN is architecturally asymmetric. This is not an accident or an oversight — it was a deliberate design choice made when the network was being planned, based on how internet traffic was distributed at the time.

When NBN's architecture was being finalised, the dominant model of internet use was consumption. People downloaded content. They browsed websites, streamed video, and received emails. Upload traffic was comparatively minimal — a search query here, a form submission there. Designing the network to deliver far more capacity in the download direction than the upload direction made technical and economic sense for that model.

The NBN speed tiers reflect this philosophy. Common business-grade NBN plans include 100/20 Mbps (100 Mbps download, 20 Mbps upload) and 250/25 Mbps. Even the higher residential tiers follow the same pattern. A 1000 Mbps download plan on a non-FTTP connection still delivers only a fraction of that in the upload direction.

This is increasingly misaligned with how businesses actually use their internet connections. The rise of cloud computing, SaaS applications, remote work, video conferencing as a standard business tool, and cloud-based backup has shifted business internet traffic dramatically towards the upload direction. NBN's asymmetric architecture, designed for a consumption-first internet, now creates real structural constraints for businesses built around cloud workloads.

The one technology type within NBN that offers meaningful upload improvements is FTTP (Fibre to the Premises). On FTTP, higher speed tiers are available that begin to address the upload gap. The available tiers include 250/25 Mbps, 500/50 Mbps, 1000/50 Mbps, and — the most significant for businesses — 1000/400 Mbps. That last tier, sometimes called the "near-symmetrical" FTTP tier, offers 400 Mbps of upload capacity alongside 1 Gbps of download, which is a fundamentally different proposition for upload-heavy workloads.

If your premises have FTTP available and you are on a lower-tier plan, moving to the 1000/400 Mbps tier is one of the most impactful upgrades an upload-constrained business can make. See our article on NBN FTTP vs FTTN for a detailed comparison of what each technology type supports.

Business Applications That Depend on Upload Speed

The following table outlines the upload demands of the most common business applications. These figures are per user or per instance, so the total upload demand on your connection is cumulative.

Look at that table and imagine a team of ten people, each on a video call. That alone can require 15–30 Mbps of upload capacity simultaneously. Add OneDrive syncing, a cloud backup running in the background, and a VoIP system handling inbound calls, and a 20 Mbps upload connection is not just constrained — it is oversubscribed before the working day has properly started.

For businesses with VoIP phone systems, upload speed and latency are especially critical. Our article on VoIP bandwidth requirements covers the specific calculations in detail.

The Cloud Backup Problem

Of all the upload bottlenecks that affect Australian businesses, cloud backup is the most common and the most consequential — and the one least likely to be diagnosed correctly.

Most business owners assume their backups are running because the backup software reports no errors. What they rarely check is whether the backup is actually completing within a 24-hour window. If your backup job takes longer than 24 hours to complete, the next backup job starts before the previous one finishes. Over time, depending on how your backup software handles this, you may have incomplete, overlapping, or corrupted backup sets. The backup software says it is running. The backups are not actually protecting you.

Upload speed is directly and arithmetically responsible for this. The maths is straightforward.

A business with 500 GB of data to back up, on a 20 Mbps upload connection, will take approximately 55 hours to complete a full backup — assuming the full upload capacity is dedicated entirely to backup traffic, with no competing workloads. In practice, with other upload traffic present, it will take longer.

At 50 Mbps upload, that same 500 GB backup takes around 22 hours. Still potentially problematic.

At 100 Mbps upload, it completes in approximately 11 hours — a reasonable window for an overnight backup job.

At 400 Mbps upload (the FTTP 1000/400 tier), that same backup completes in under three hours.

The relationship is linear, which means doubling your upload speed halves your backup window. For businesses that have grown their data volumes over time while staying on the same internet plan, the backup window problem can sneak up quietly. The business had 100 GB of data when it went to the cloud. Three years later it has 600 GB. The backup that used to complete overnight no longer does.

This is one of the clearest cases where upload speed is not a technical nicety — it is a business continuity issue. For more on matching internet speed to workload, see our guide on business internet speed requirements.

Symmetrical Internet — What It Is and When to Consider It

Symmetrical internet means equal upload and download speeds. A 100/100 Mbps connection. A 500/500 Mbps connection. Upload and download capacity are identical, and the asymmetric constraints of standard NBN simply do not apply.

There are two main ways to get symmetrical or near-symmetrical internet in Australia.

The first is Enterprise Ethernet, also called dedicated fibre. This is a private fibre circuit delivered directly to your premises, not shared with anyone else, and typically available in symmetric configurations from 10/10 Mbps up to 10 Gbps/10 Gbps and beyond. Enterprise Ethernet is not cheap — it commands a significant price premium over NBN — but it delivers consistent, guaranteed speeds in both directions, with service-level agreements that NBN does not offer. For businesses where downtime is costly and upload-heavy workloads are central to operations, the economics often justify the investment. See our comparison of NBN business vs Enterprise Ethernet for a full breakdown.

The second path is the NBN FTTP 1000/400 Mbps tier. While not technically symmetrical, 400 Mbps of upload capacity on a consumer-grade NBN connection is a substantial step up from the 20–50 Mbps available on lower tiers. For many SMBs, this tier resolves upload constraints without requiring the cost of dedicated fibre.

A third option worth knowing about is fixed wireless internet from commercial providers. Unlike NBN Fixed Wireless, which shares the same asymmetric constraints as other NBN technologies, commercial fixed wireless solutions — particularly those using licensed spectrum — can deliver close to symmetric speeds at competitive price points. This is a viable option in areas where FTTP is not available and Enterprise Ethernet is cost-prohibitive. See our article on symmetrical internet for business for a more detailed treatment of each option.

Symmetrical internet is the right choice for businesses with significant cloud workloads, media production teams, architecture or engineering firms transferring large files routinely, or any operation where upload demand is genuinely comparable to download demand.

Practical Solutions for Upload Speed Constraints

If your business is experiencing video call quality issues, slow OneDrive sync, or backup windows that stretch across days, here are the options available to you — roughly in order of cost and complexity.

Upgrade to a higher FTTP tier if you are already on FTTP. If your premises have FTTP and you are on a 100/20 or 250/25 plan, moving to 500/50 or 1000/400 Mbps delivers a meaningful upload improvement at a relatively modest price increase. This is the lowest-friction fix available to FTTP customers.

Move to fixed wireless with better upload ratios. In areas where commercial fixed wireless is available, this can deliver upload speeds that outperform FTTN or HFC NBN considerably, sometimes at similar price points. It is worth investigating if you are on a copper-based NBN technology.

Upgrade to Enterprise Ethernet with symmetrical speeds. For businesses where upload performance is genuinely mission-critical — media production, large-file industries, high call volumes on VoIP — dedicated fibre with symmetric speeds eliminates the problem entirely. The monthly cost is higher, but the operational certainty it provides has real business value.

Implement QoS (Quality of Service) on your router. This does not increase your upload speed, but it manages how your existing upload capacity is allocated during congestion. A properly configured QoS policy will ensure that VoIP calls and video conference traffic are prioritised over background workloads like cloud backup and file sync. If your router supports it, this is a low-cost immediate measure that can reduce the perceived impact of upload congestion while you work towards a longer-term solution. Note that QoS is a mitigation strategy, not a fix — if your total upload demand consistently exceeds your upload capacity, QoS buys you breathing room but does not solve the underlying problem.

One additional consideration: if you have multiple staff on video calls simultaneously, even a genuine upload upgrade may require QoS to ensure the capacity is distributed appropriately. A 50 Mbps upload connection shared between ten simultaneous video callers gives each around 5 Mbps of upload — tight but workable. Without QoS, a background backup job could consume the majority of that upload pipe and degrade every call on the network.

Pickle's Internet Plans and Upload Speed

Pickle offers business internet options designed with modern business workloads in mind, including plans with upload speeds that actually support cloud-based operations, VoIP phone systems, and video conferencing at scale.

If you are unsure what upload speed your business actually needs, or whether your current connection is the right fit for your workloads, the Pickle team can assess your requirements and recommend the right plan — whether that is a higher-tier NBN FTTP connection, a fixed wireless solution, or a dedicated Enterprise Ethernet circuit.

Contact Pickle on 1300 688 588 or email [email protected] to talk through your options.

Frequently Asked Questions

Q: Why are my video calls pixelated even though my internet is fast?

A: Video call quality in the outbound direction — the video your colleagues and clients see — is determined almost entirely by your upload speed, not your download speed. An internet plan advertised at 250 Mbps may have only 25 Mbps of upload capacity. If multiple staff are on simultaneous video calls, or if background processes like cloud backup and file sync are running at the same time, your available upload bandwidth can be exhausted very quickly. The result is pixelated video, audio dropouts, and screen shares that freeze. Checking your actual upload speed during a call (using a tool like speedtest.net or fast.com) will usually confirm whether upload congestion is the cause.

Q: How much upload speed do I need for cloud backup?

A: It depends on your total data volume and the backup window you need to complete it in. As a rough guide, a business with 500 GB of data needs approximately 55 Mbps of dedicated upload capacity to complete a full backup within 24 hours — and more to complete it comfortably overnight while other workloads are also running. For 1 TB of data, you are looking at 110 Mbps of dedicated upload to stay within a 24-hour window. In practice, most businesses do not dedicate their entire upload pipe to backup, so a useful rule of thumb is to ensure your upload speed is at least twice what the raw maths requires, leaving headroom for other traffic.

Q: Can I get symmetrical speeds on NBN?

A: Near-symmetrical speeds are available on NBN if your premises have FTTP (Fibre to the Premises) technology. The 1000/400 Mbps FTTP tier provides 400 Mbps of upload capacity alongside 1 Gbps download, which is the closest NBN comes to symmetrical performance. This tier is only available on FTTP — FTTN, FTTB, and HFC connections do not support it. Truly symmetrical NBN speeds are not available. If full symmetry is a requirement, Enterprise Ethernet (dedicated fibre) is the appropriate solution.

Q: Does upload speed affect VoIP call quality?

A: Yes, significantly. Each active VoIP call requires approximately 100 Kbps of upload bandwidth for the audio stream leaving your device. While that figure sounds modest, the real issue is latency and jitter during upload congestion. When your upload pipe is saturated — by backup traffic, file sync, or simultaneous video calls — VoIP packets may be queued or dropped, causing the audio on the outbound call to break up, delay, or cut out entirely. Implementing QoS on your router to prioritise VoIP traffic can mitigate this, but the underlying fix is ensuring adequate upload capacity for your total concurrent workload.

Q: What is the fastest upload speed available on NBN in Australia?

A: The fastest upload speed available on NBN in Australia is 400 Mbps, available on the 1000/400 Mbps tier for FTTP (Fibre to the Premises) connections. This tier is not available on FTTN, FTTB, or HFC. For FTTN and HFC connections, upload speeds are typically capped at 20–50 Mbps depending on the plan tier. If your premises do not have FTTP and faster upload speeds are a business requirement, Enterprise Ethernet or commercial fixed wireless are the alternatives to consider.