ERP Pricing, Comparisons and 2026 Rules
Cloud vs on-premise ERP: five-year cost comparison for Australian businesses
How cloud SaaS, partner-hosted and on-premise ERP compare on upfront and ongoing cost, upgrades, security, data location and exit, with an illustrative five-year model.
Cloud (SaaS) ERP swaps a large upfront licence and server purchase for a recurring subscription that includes hosting, upgrades and much of the security work. On-premise ERP costs more upfront and needs your own IT effort, but can cost less per year once paid for and gives you more control over data and upgrade timing. For most Australian small and mid-sized businesses, cloud is now the default, but the right answer depends on your IT capability, data requirements and how long you expect to keep the system. This guide compares the models over five years with illustrative numbers.
This guide is part of the ERP software pricing comparison overview.
The three deployment models
| Model | Who runs the servers | How you pay | Upgrades |
|---|---|---|---|
| Multi-tenant cloud (SaaS) | Vendor, on its cloud platform | Subscription per user, edition or module | Vendor pushes releases on its schedule, typically several times a year |
| Partner-hosted or private cloud | A hosting partner runs your own instance | Licence or subscription plus hosting and managed service fees | Agreed with the partner; may lag behind |
| On-premise | You, on your own servers or a data centre you rent | Perpetual licence upfront plus annual maintenance; hardware and IT costs | You decide when to upgrade and pay for the project |
Illustrative five-year comparison
A 20-user business compares two options. All figures are invented to show the method.
Cloud SaaS
| Item | Year 1 | Years 2–5 each |
|---|---|---|
| Subscription: 20 × $150 a month × 12 | $36,000 | $36,000 |
| Implementation | $70,000 | – |
| Support retainer | $5,000 | $5,000 |
| Total | $111,000 | $41,000 |
Five-year total: $111,000 + 4 × $41,000 = $275,000.
On-premise
| Item | Year 1 | Years 2–5 each |
|---|---|---|
| Perpetual licences: 20 × $3,500 | $70,000 | – |
| Annual maintenance (illustrative 20% of licence) | $14,000 | $14,000 |
| Servers, storage, backup, licences for operating system and database | $30,000 | $2,000 |
| Implementation | $80,000 | – |
| IT support and patching (share of a contractor) | $12,000 | $12,000 |
| Upgrade project in year 4 | – | $25,000 once |
| Total | $206,000 | $28,000 a year, plus $25,000 once |
Five-year total: $206,000 + 4 × $28,000 + $25,000 = $343,000.
Over five years, cloud is about $68,000 cheaper in this example. On-premise only catches up if you keep it much longer without major upgrades or hardware refresh, which is risky because older systems fall out of vendor support. Change the assumptions, especially IT support costs and hardware life, and the answer can move. Rebuild both sides with the TCO estimator.
Note that the on-premise maintenance percentage and any cloud subscription can rise over time; see the renewal uplift worked example.
Beyond price: what else differs
| Factor | Cloud SaaS | On-premise |
|---|---|---|
| Upfront cash | Lower | Higher |
| Tax treatment (general) | Subscription usually an operating expense | Licences and hardware usually capital, depreciated or written off under small business rules if eligible |
| Security patching | Mostly vendor | You |
| Backups and disaster recovery | Vendor's responsibility for the platform; check your own export rights | Yours |
| Upgrade timing | Vendor's schedule | Yours |
| Customisation | Limited to supported extension methods | Deeper, but harder to upgrade |
| Remote access | Built in | Needs secure remote access set-up |
| Data location | Depends on vendor's hosting regions | Wherever you put the server |
| Exit | Depends on export rights in the contract | You hold the database, but need the licence to read it |
Tax treatment depends on the facts; see the tax guide and ask your tax agent.
Data sovereignty and hosting location
Australia's Privacy Act does not generally require private-sector businesses to store personal information onshore. Instead, Australian Privacy Principle 8 makes an organisation accountable for how overseas recipients handle personal information it discloses to them, with some exceptions. Some contracts, sectors and government work do require Australian hosting: for example, contracts with government agencies may require certified hosting, and some health information is subject to specific rules.
Ask a cloud vendor:
- Which regions host the production data and backups? Is an Australian region available, and at what price?
- Where are support staff located, and can they access your data from overseas?
- Who are the sub-processors?
See privacy, data breaches and data location.
When on-premise still makes sense
- You already own a stable on-premise ERP with years of support left.
- You have strong in-house IT and strict data control requirements.
- Your operations run where internet connectivity is unreliable, such as some remote sites; even then, many cloud products offer offline tools for warehouses and field staff.
- You rely on deep customisations that a cloud product cannot support.
Partner-hosted private cloud is often a middle step: you keep your existing software but stop running servers. Check both contracts carefully, because responsibility for upgrades, backups and exit can fall between the software vendor and the host.
Frequently asked questions
Is cloud ERP always cheaper?
Not always. It is usually cheaper upfront and over the first five years for small businesses because hosting, security and upgrades are included. Over long periods with little change, on-premise can be competitive.
Can we move from on-premise to cloud later?
Yes, but it is a migration project. Same-vendor cloud editions may offer migration tools; data and customisations still need work.
Who is responsible for backups in cloud ERP?
The vendor protects its platform, but your contract determines what restore and export rights you have. Many businesses keep their own regular exports.
Does cloud ERP work in regional Australia?
Generally yes with reliable broadband or a satellite or mobile connection, but test performance at your sites during the trial.
Sources
- Office of the Australian Information Commissioner — Australian Privacy Principles, including APP 8 on cross-border disclosure
- Australian Cyber Security Centre — guidance on cloud security and the Essential Eight
- Australian Taxation Office — depreciation and software expenses
- Digital Transformation Agency — hosting certification for government work
