Most small businesses in Australia are sharing files the wrong way. And it is costing them time, creating version control problems, or quietly putting client data at risk. Common examples include emailing files back and forth, passing around USB drives, or using a shared consumer-cloud account without business access controls. These approaches work well enough with one or two people doing similar work. They break down the moment a second person needs to access the same file at the same time, or when a staff member leaves and you cannot audit what they had access to.
In short: For 2-5 staff, a NAS (AU$550-$900 one-time) is usually the most cost-effective long-term option. No ongoing subscriptions, data stays on-premises, and it handles remote access. For 5-20 staff with remote-first workflows or Google/Microsoft dependency, Google Workspace or Microsoft 365 (~AU$100-$180/user/year) is often simpler to manage. Consumer Dropbox is appropriate only for sole traders.
This is not a technology problem. It is an infrastructure problem with a well-understood range of solutions. Here is what is actually available in Australia, what each costs, and which kind of business each suits.
Two Australian-Specific Pressures Worth Knowing
Before comparing options, two Australian obligations are worth understanding. Particularly if you handle client data.
The Australian Privacy Act (Privacy Act 1988). If your business handles personal information about clients or employees. Names, contact details, financial records, health information. You have legal obligations around how that data is stored, who can access it, and how it is secured. Most businesses with annual turnover of AU$3 million or less are not covered by the Privacy Act, but statutory exceptions apply regardless of turnover, including for health-service providers, credit-reporting bodies and AML/CTF reporting entities. Other sector-specific duties vary, so confirm the position with a legal adviser. Cloud services that store data on overseas servers add complexity here. This is general information only. Confirm obligations with your legal adviser.
ATO record-keeping requirements. Australian businesses are generally required to keep financial records for a minimum of five years. The ATO does not mandate where records are stored. Cloud or on-premises are both acceptable. But records must be retrievable within a reasonable timeframe and protected against loss. A consumer Dropbox plan with limited version history is a riskier choice for financial records than it might appear. Confirm specifics with your accountant.
Your Four Options. Plain English
Option 1: Cloud shared drive (Google Workspace or Microsoft 365). The most common modern choice for small businesses with 2-20 staff. Google Workspace Business Starter costs approximately AU$10-$12 per user per month (AU$120-$144/year per seat), giving each user 30GB of pooled storage plus Docs, Sheets, Gmail, and Meet. Microsoft 365 Business Basic costs AU$10.50 per user per month on an annual commitment, excluding GST, and includes SharePoint, Teams and Exchange. A separate no-Teams edition costs AU$8.10 per user per month. Both suit businesses where staff work remotely, are already using the associated apps, or are spread across multiple locations. Data location varies by provider, service, plan and tenant configuration. Microsoft provides Australian data-at-rest commitments for specified core services when a tenant is provisioned in Australia, while Google Workspace Business Starter does not offer a selectable data-at-rest region. For healthcare, legal, or finance businesses, confirm compliance requirements with a professional adviser before committing.
Option 2: Consumer cloud (Dropbox, iCloud Drive, OneDrive personal). These tools are not designed for business use, but many small businesses use them because setup is simple. The problems: Consumer plans can share particular files or folders with selected people, but they generally lack the centralised user lifecycle, team ownership, auditing and policy controls offered by business-managed accounts., version history is limited, and there is no separation between personal and business data on personal accounts. If a staff member leaves with their Dropbox login, your files go with them unless you have planned for it. Consumer cloud is appropriate for sole traders or two-person setups with full mutual trust. For businesses with distinct staff roles or client data obligations, it creates real risk.
Option 3: A NAS on your office network. A NAS (Network Attached Storage) is a small dedicated device about the size of a hardback book that sits on your office network and acts as a central file server. Staff connect to it like a normal shared drive. Files stay on hardware you own in your office. Access is controlled by user accounts. Each staff member gets their own login with permissions set by you. Entry-level NAS costs vary materially with the enclosure, drive capacity and current drive prices. Budget separately for compatible drives, backup, UPS, setup, power and eventual drive replacement; basic NAS file-sharing software generally has no per-user subscription fee. For businesses with 2-15 staff on a single site or working from home and budget-conscious, a NAS is typically the most cost-effective long-term choice. Remote access for work-from-home staff is standard. Built into most NAS systems at no extra cost.
Option 4: A Windows file server. A dedicated Windows Server machine is more powerful and flexible than a NAS. It integrates with Active Directory, supports complex access policies, and scales to larger teams. Windows file-server cost varies widely with hardware, Windows Server edition, client-access licensing, redundancy, backup, deployment and support requirements, and it generally requires ongoing administration. For most Australian businesses under 20 staff, a Windows file server is overkill unless you have IT staff in-house or a managed service provider already handling your infrastructure.
NBN upload speeds matter here. Most standard NBN plans deliver 5-20 Mbps upload. Uploading large files to a cloud drive. Video, CAD files, high-resolution images. Over a slow connection is slow and unreliable. A NAS can avoid the internet-upload bottleneck for in-office transfers, but actual file-transfer speed depends on the NAS, drives, client devices, switches, negotiated link rate, protocol, file sizes and network load. If your workflow involves large files and you are cloud-first, check whether your NBN plan's upload speed is actually sufficient before committing.
What a NAS Looks Like in Practice
Illustrative scenario, not a documented case study: a two-person accounting practice could replace a shared Dropbox folder with a Synology two-bay NAS. The NAS sits in the office, stores client files and working documents, and is accessible to both staff over the local network. Each staff member has a separate login with access restricted to their own client folders. When working from home, they connect via the NAS's built-in VPN. Illustrative only: hardware cost, setup time and ongoing off-site backup charges depend on the selected NAS, drives, backup service, data volume and installer.
This setup suits businesses that handle client data on-premises, where staff are primarily on-site or working from home on a predictable schedule, and where a one-time hardware cost is preferable to ongoing subscriptions. It is less suited to businesses with staff in multiple states who need instant real-time collaboration on the same documents simultaneously. For those, Google Workspace or Microsoft 365 is a better fit.
What to Do Next
If you want to understand what a NAS actually is before going further: the What Is a NAS guide explains the concept from first principles without any assumed technical knowledge.
If you want to see specific NAS options for small business use: Best NAS for Small Business Australia covers models with Australian pricing and the features that matter for multi-user office environments.
If compliance with the Privacy Act or ATO record-keeping requirements is a factor: the article on NAS for Small Business Compliance in Australia walks through data retention obligations and what a defensible storage setup looks like in practice. Always confirm specifics with your legal and accounting advisers.
To compare the full range of NAS devices available in Australia: Best NAS Australia covers consumer through prosumer options with current pricing from local retailers.
Business File Sharing Options for Small Business (2026 AU)
| Microsoft 365 Business Basic | Google Workspace Business Starter | Dropbox Business | NAS (Synology DS925+) | |
|---|---|---|---|---|
| Per-user cost (monthly) | $8.10 AUD/user | $8.40 AUD/user | Specify the exact Dropbox plan, billing cycle and current Australian billing-page price before comparison. | $0 (no per-user fee) |
| 10-user cost per year | ~$972/yr | ~$1,008/yr | ~$2,640/yr | ~$0 (hardware paid upfront) |
| Storage included | 1TB per Microsoft user | 30GB pooled per Google user | Dropbox Standard: 3TB team pool for the first member plus 1TB per additional active licence | NAS: no storage drives included; capacity depends on separately purchased drives and RAID configuration |
| Works offline | Yes (OneDrive sync) | Yes (Drive sync) | Yes (Dropbox sync) | Yes (local network) |
| NBN upload required | Yes | Yes | Yes | No (LAN only) |
| Data on AU soil | Microsoft 365: available for in-scope data at rest when the tenant is provisioned in Australia | Google Business Starter: no selectable data-at-rest region | Dropbox: Australian storage is available only to eligible users | NAS: on premises unless cloud backup, sync or replication is configured |
| 5-year hardware/software cost | ~$4,860 | ~$5,040 | ~$13,200 | ~$2,500-$3,500 total |
User Access Control: Setting Up SMB Permissions on a NAS
A NAS shared drive for business should have folder-level access control from day one. The common mistake is creating one shared folder for everything and giving all staff full access. When someone leaves, or a security incident occurs, there is no way to limit exposure. The correct structure separates files into departments or sensitivity levels and assigns access per group.
On Synology DSM, create a user group for each department (Finance, Operations, HR). Create a shared folder per department. Under Shared Folder Permissions, assign each group to its folder: Read/Write for the department it belongs to, No Access for others. The IT or admin account gets Read/Write to all folders for backup and maintenance. Windows domain integration (Active Directory or LDAP) centralises authentication if your business already uses Windows Server.
Security: What Small Businesses Get Wrong
Three security gaps to address in small-business NAS deployments are weak administrator-account security, unsafe internet exposure and unscanned removable media. Change the admin password immediately after setup and disable the default "admin" account in favour of a named account. Enable two-step verification on the NAS management interface. Block the NAS from direct internet access using the router firewall; remote staff should connect via VPN or a service like Tailscale, not via direct port forwarding.
Ransomware is the specific risk NAS vendors warn about explicitly. Synology's snapshot-based protection (Snapshot Replication) creates point-in-time copies of shared folders that ransomware cannot modify because they are not writable from network-connected clients. Enable snapshots on every shared folder and set them to run hourly with at least 24 versions retained. Snapshots can substantially shorten recovery, but restoration time depends on the incident scope, affected data, configuration and validation required.
Use our free NAS Sizing Wizard to get a personalised NAS recommendation.
See also: our complete Synology NAS Australia guide.
See also: our full Small Business Storage and Backup guide.
How much does a shared drive solution cost for a small business in Australia?
Cloud options (Google Workspace, Microsoft 365) cost AU$100-$180 per user per year, ongoing. A NAS costs AU$550-$900 upfront with no ongoing subscription fee for basic shared storage. Whether a NAS pays for itself depends on staff count, selected cloud plans, NAS and drive cost, backup, UPS, support, power and replacement assumptions. For larger teams or remote-heavy setups where cloud collaboration tools are heavily used, cloud options may be more cost-effective at scale.
Does my business data have to stay in Australia?
There is no blanket requirement for most Australian businesses, but healthcare, legal, and some financial services businesses have stricter obligations under the Privacy Act and industry codes. Cloud data location varies by provider, plan, account configuration and data type; do not assume that consumer-cloud data is stored in Australia. If on-premises storage or Australian data residency is required for your industry, a NAS is the simplest solution. Confirm your specific obligations with a legal adviser. This is general information only.
Can staff access files remotely with a NAS?
Yes. Most NAS systems (Synology, QNAP) include built-in remote access. Either a manufacturer-hosted relay service (simple to set up, no technical knowledge needed) or a VPN server running on the NAS (more private, requires a brief configuration step). Remote access is a standard feature at no extra cost. Staff working from home connect to the NAS over the internet and access their files just as they would in the office.
What is the difference between a NAS and a file server?
A NAS is a purpose-built appliance for file storage and sharing. A NAS is generally simpler to administer than a general-purpose server, but it still requires ongoing updates, backup checks, drive-health monitoring, user management and security maintenance. A Windows or Linux file server is a general-purpose computer running a full server OS. More flexible and enterprise-integrations capable, but costs significantly more and requires IT expertise. For most Australian businesses under 15 staff, a NAS provides everything a file server does for shared storage at a fraction of the cost and complexity.
What happens to our shared files if a staff member leaves?
With a NAS, you simply disable or delete their user account. They immediately lose access to all files on the device, and those files remain on your hardware under your control. With a consumer cloud setup where staff use their personal account (personal Dropbox, personal Google Drive), files in their account belong to their account. If you have not set up a business-owned account structure, you may have no way to recover access to those files when they leave. This is one of the clearest practical reasons to use a business-managed solution rather than personal consumer accounts.
What is the minimum number of staff that justifies a NAS over Microsoft 365 SharePoint?
At 3 to 5 staff, Microsoft 365 Business Basic at around $8 AUD per user per month is comparable in total cost to a NAS when hardware purchase is included. At 10 or more staff, a NAS may have lower direct storage costs, but five-year total cost varies with hardware, capacity, redundancy, backup, administration, support, energy and cloud-plan assumptions. The decision also depends on whether the business needs cloud collaboration (working simultaneously on documents from multiple locations), which Microsoft 365 and Google Workspace do better than a LAN-only NAS.
Does a business NAS need a UPS (uninterruptible power supply)?
Yes for any production NAS in a business context. An unexpected power cut during a write operation can corrupt the filesystem or damage files in progress. A compatible, properly configured UPS provides short-term backup power so the NAS can save data, stop services and unmount volumes safely; runtime depends on UPS capacity, load and battery condition. A basic single-line UPS for a 2 to 4 bay NAS costs $120 to $200 AUD and is one of the highest-value accessories to buy alongside the NAS itself.
Can staff access the business NAS from home when working remotely?
Yes, with the right remote access configuration. The three options are: a VPN into the office network (requires a compatible router and some setup), Synology QuickConnect (relay-based, easy setup, no port forwarding required), or Tailscale (recommended for Australian businesses behind CGNAT). Tailscale generally works behind NAT or CGNAT without router changes, but some firewall policies and address conflicts can require additional configuration or relay use. Remote staff install the Tailscale client and connect to the NAS by its Tailscale IP address, accessing shared folders as if they were in the office.
Want to see which NAS devices suit a small business setup in Australia, with current pricing from local retailers? The buying guide covers 2-bay to 4-bay options for 2-20 staff.