by The Computing Australia Group | 
Cloud computing for business simply means using software, storage and computing power over the internet instead of running everything on equipment in your office. If your team uses Microsoft 365, cloud accounting or an online CRM, you’re already in the cloud.
The real questions are which parts of your business belong there, what it will cost, and how to keep it secure. This guide answers those questions in plain English, so you can make confident decisions without the jargon.
Updated 4 November 2026
What’s changed since this guide was first published
- Microsoft 365 prices rose on 1 July 2026. Business Basic and Business Standard went up at renewal, while Business Premium stayed at the same price.
- ASD Essentials now covers the cloud. ASD’s new framework, published in October 2026, includes a dedicated chapter on securing cloud services.
- Many businesses still have security gaps. ABS data for 2024–25 shows 28% of businesses had no measures in place to prevent cyber security incidents.
What is cloud computing for business?
In short, cloud computing lets you rent technology instead of buying and maintaining it yourself. A provider such as Microsoft, Google or Amazon runs the hardware in secure data centres, and you access it through the internet, usually for a monthly fee.
For most small and medium businesses, the cloud shows up in everyday tools. For example, email and file sharing in Microsoft 365, accounting in Xero or MYOB, customer records in a CRM, and backups stored off-site.
The three main types of cloud service
Software as a service
Ready-to-use applications such as Microsoft 365 or Xero. The provider manages almost everything, and you manage your users and data.
Infrastructure as a service
Virtual servers and storage, such as Microsoft Azure, that replace the server in your comms cupboard.
Platform as a service
Building blocks for developers to create and run custom applications without managing servers.
Public, private and hybrid cloud
Public cloud means shared infrastructure run by a large provider, which suits most small businesses. Private cloud is dedicated to one organisation, offering more control at a higher cost. Hybrid cloud combines the two, often keeping one specialised system on-site while everything else moves to the cloud. Many businesses also use several providers at once, which is sometimes called multi-cloud.
Benefits of cloud computing for business
When it’s set up well, the cloud can make your business more flexible and resilient. Here are the benefits most owners notice first.
Predictable costs
Monthly subscriptions replace large, irregular spending on servers and upgrades.
Work from anywhere
Staff can securely reach email, files and apps from the office, home or on the road.
Scale up or down
Add or remove users and storage as your business changes, without buying new hardware.
Better resilience
Data centres have backup power and redundancy that most small offices can’t match.
Automatic updates
Providers patch and improve their services, so you’re always on the current version.
Access to AI
Tools such as Microsoft 365 Copilot build AI into the apps your team already uses.
Risks of cloud computing, and how to manage them
The cloud isn’t automatically safe or cheap. However, most risks are manageable once you know where they sit.
- Shared responsibility. Your provider secures its data centres and platform. You remain responsible for your accounts, settings, devices and data.
- Stolen passwords. Because cloud services are reachable from anywhere, a stolen password can be enough to get in. Multi-factor authentication is essential.
- Creeping costs. Unused licences, extra storage and add-ons quietly add up, so review your subscriptions regularly.
- Data location and privacy. Check where your data is stored, especially if you handle personal or health information. Many providers offer Australian data centres.
- Internet dependence. If your connection fails, so does access to cloud systems. Consider a backup connection for critical work.
- Getting locked in. Before you commit, check how you’d export your data and move to another provider.
Does the cloud back up your data?
Not in the way most people assume. Cloud platforms are built to keep your data available, not to roll it back. Because changes sync automatically, a mistaken deletion or a ransomware infection on one laptop can reach every copy within minutes. That’s why a separate backup you control is still important. Our ransomware attack guide explains why backups that attackers can’t reach matter so much.
What does cloud computing really cost?
The monthly subscription is only part of the picture. To compare options fairly, look at the total cost over three to five years, including:
- Licences. Per-user subscriptions for software such as Microsoft 365, which can rise at renewal.
- Storage and usage. Extra storage, backups and, for cloud servers, the computing power and data transfer you use.
- The move itself. Planning, data migration and any changes to older software.
- Management and support. Someone needs to manage users, security settings and costs every month.
- Training. A little time spent helping staff use new tools well pays for itself quickly.
In addition, review your plans before each renewal. For instance, after the July 2026 price changes, some businesses found that Microsoft 365 Business Premium offered better value because it bundles security features that would otherwise cost extra.
Cloud security: your part of the deal
Most cloud breaches come from settings and accounts rather than the provider’s systems. As a result, these basics matter most:
- Multi-factor authentication for every user, and especially for administrators.
- Separate admin accounts used only for management tasks, never for everyday email.
- Secure devices with up-to-date software, encryption and endpoint protection.
- Independent backups of email, files and key systems, tested regularly.
- Monitoring and alerts for unusual sign-ins and changes to important settings.
- A recognised framework. ASD Essentials includes guidance written specifically for cloud services.
Is your business ready for the cloud?
Before moving more of your business online, work through these questions. Any uncertain answer is worth discussing with your IT provider.
- Connection: Is our internet fast and reliable enough, and do we have a fallback?
- Software: Which of our applications already have cloud versions, and which are older systems that may need replacing?
- Data: What sensitive information do we hold, and where must it be stored?
- Access: Who will manage user accounts when people join or leave?
- Budget: Have we compared the total cost over several years, not just the monthly fee?
- People: How will we train staff so they actually use the new tools?
Moving to the cloud
A successful move usually follows a simple path: review what you have, plan what moves and when, test with a small group, migrate in stages, train your team, then keep refining. For the full step-by-step process, read our cloud migration guide, and plan your move with our cloud migration guide for small business.
How CAG helps with cloud computing for business
As a Microsoft partner with 21 years of IT experience, our Perth team in Belmont helps businesses get the benefits of the cloud without the headaches. We look after the setup, the security and the ongoing management, so your team can simply get on with their work.
Microsoft 365
Setup and migration of email, Teams, SharePoint and OneDrive, plus help choosing the right licences.
Cloud servers
Moving servers and applications into Microsoft Azure or similar platforms, then managing them.
Cloud backup and recovery
Independent backups of your cloud and on-site data, with restores we test regularly.
We also protect your cloud services with 24/7 monitoring, multi-factor authentication and endpoint protection. Explore our managed IT services, cyber security services and disaster recovery.
Cloud services
Not sure what belongs in the cloud?
Tell us how your business works today. Our Perth team will explain your options, costs and security in plain language.
Cloud computing for business: FAQs
Costs and choices
Is the cloud cheaper than keeping servers on-site?
Often, but not always. The cloud removes large hardware purchases and many maintenance costs. However, subscriptions and usage fees continue every month, so compare the total cost over three to five years.
Can we keep some systems on-site?
Yes. Many businesses use a hybrid approach, keeping one specialised system on-site while moving email, files and other apps to the cloud.
How long does moving to the cloud take?
It depends on how many people, systems and how much data you have. A small business moving email and files can often move quickly, while older line-of-business software usually takes more planning.
Security and data
Is our data safe in the cloud?
Major providers invest heavily in security. However, most incidents come from weak passwords and poor settings, which are your responsibility. With multi-factor authentication, good settings and monitoring, the cloud can be safer than an office server.
Does Microsoft 365 back up our data?
Microsoft keeps its service running and offers limited recovery options. That isn’t the same as a separate backup you control, so we recommend an independent cloud backup.
Can CAG help with cloud computing for business?
Yes. We set up and migrate Microsoft 365, move servers into Microsoft Azure or similar platforms, and provide cloud backup and recovery. Talk to our team about the right setup for your business.
Sources and further reading
- Australian Bureau of Statistics — Characteristics of Australian Business, 2024–25
- ACS Information Age — Microsoft to hike 365 prices for business and government
- Technicalities — Microsoft 365 Business plans: new pricing
- Australian Signals Directorate — ASD Essentials announcement
- Australian Signals Directorate — Essentials for cloud
Prices and plan details change, so check current pricing with your provider before you decide. Last reviewed 4 November 2026.
About the author
Chris Karapetcoff
Director (Client Growth and Success), The Computing Australia Group
Chris has worked with The Computing Australia Group for over 20 years and looks after its client relationships. He helps organisations get outstanding value from their IT spend, with plain-English advice and a complete IT solution they can build on. As he tells every client: your IT system should just work.
