How much does custom software cost in Australia?
A plain-language guide from a team that has scoped and built custom software in Adelaide since 2011: what drives the price, realistic ranges, and how to keep the number under control.
- Focused build$40k to $150k. One workflow, a few roles, one or two integrations.
- Operational platform$150k to $400k. Portals, approvals, integrations and reporting.
- Product or SaaS$300k to $500k and beyond over the first two years.
- After launchSupport and hosting typically 15 to 20 per cent of the build cost a year.
The biggest factor isn't the feature list. It's how well the problem is understood before anyone builds.
In Australia, a focused custom software build, meaning one core workflow, a handful of user roles and one or two integrations, typically costs $40,000 to $150,000. A full operational platform or SaaS product typically costs $150,000 to $500,000 or more over its first two years, including design, build, hosting and support. Every project we take on gets a fixed estimate at the end of Discovery, so the number you plan around is the number you pay.
Six things that change the price
The feature list is only part of it. These six factors decide where a project lands in the ranges below.
Scope and workflows
Each process the software has to run, whether quoting, scheduling, approvals or invoicing, adds screens, rules and testing. Ten workflows cost more than two, but rarely five times more when they share the same data.
Integrations
Xero, MYOB, payment gateways, CRMs and government APIs. Systems with good APIs are quick to connect. Older systems with no API are the surprises Discovery is there to find early.
User roles and permissions
A system for five office staff is simpler than one for 60 stores, 200 field workers and outside suppliers, each seeing different data with different rights.
Compliance and audit
Health, finance, government and safety need audit trails, data kept in Australia, retention rules and security evidence. All necessary, and all extra work.
Data migration
Moving years of spreadsheets or an old database into clean, checked data is the line most budgets underestimate. We price it as its own item.
Mobile and offline
Native apps, offline sync and hardware such as GPS, cameras and RFID readers add a second front end and a second release process.
What custom software costs in Australia
Indicative ranges for the build, based on projects we've delivered. Every project gets a fixed estimate in Discovery.
Focused build
One core workflow, a few user roles, one or two integrations, web based. Typically three to four months from Discovery to live.
Operational platform
Several workflows, portals for customers or suppliers, approvals and audit trails, multiple integrations and reporting. Six to nine months, usually released in stages.
Product or SaaS
Multi-tenant architecture, billing, mobile apps, and the security and capacity an outside customer base needs. Around twelve months to launch, then ongoing development.
Ranges exclude GST and are for the build. Ongoing support and managed hosting typically run at 15 to 20 per cent of the build cost a year. A larger platform is usually released in stages, so parts of it are in use well before the full amount is spent.
Compare five years, not year one
Off-the-shelf software looks cheaper in the first year. The comparison changes when you count the full five.
If you can describe your process in the vendor's language without a workaround, buy it. If your process is what makes you competitive, build it.
Plenty of businesses should buy. We'll tell you if yours is one of them. Discovery is standalone and fixed price, and ends with a recommendation either way.
Costs that grow with headcount
Per-seat licence fees that rise as you hire, paid add-ons for the features you actually need, and a renewal every year whether or not it still fits.
The work around the tool
Exports, re-keying and spreadsheets that sit beside a system that almost fits. That time never appears on the software invoice, but you pay for it every week.
A one-off build plus support
No per-seat fees. Built to your process, so the workarounds go away, and supported by the team that built it for a predictable annual amount.
An asset you own
The code, the data and the documentation are yours. It becomes more valuable as it takes on more of the operation, and it counts when the business is valued or sold.
Four ways to keep the cost where you planned it
Start with Discovery, not development
A fixed-price scoping phase finds the expensive surprises while they're still cheap to fix, and gives you a firm estimate before you commit.
Build it in stages
Build the workflow with the biggest return first. The savings from stage one help pay for stage two.
Insist on fixed estimates
Open-ended time and materials is how budgets get away. Agree scope, price and timeline for each phase, and price every change before it goes in.
Budget for change
Software that can't change becomes a liability. Allow 15 to 20 per cent of the build cost a year for support, hosting and improvements from the start.
Is custom software more expensive than off-the-shelf?
Upfront, usually yes. Over five years, often no. Off-the-shelf carries per-seat licence fees, paid add-ons and the cost of the manual steps around the tool. Custom software is a one-off build plus support, with no per-seat fees, and it becomes an asset on your balance sheet.
Can we build in stages to spread the cost?
Yes, and we recommend it. A phased roadmap ships the highest-value workflow first, so the platform starts paying for itself while the later stages are built.
How do we get an accurate estimate?
Through Discovery: a fixed-price, two to four week phase that maps your workflows, pins down the real problem and produces a scoped roadmap with an estimate. You keep everything, with no obligation to build with us.
Are there grants for custom software in Australia?
Sometimes. State and federal programs for digital adoption, export readiness and research and development come and go, and we've helped clients access them, including a South Australian Government AI grant on the JACK platform. Ask us what is open when you're planning.
What does ongoing support cost?
Plan on 15 to 20 per cent of the build cost a year across support, managed hosting and improvements. Support agreements have written response targets and a set number of hours, so the figure is predictable.
Want a real number for your project?
Discovery gives you a scoped roadmap and a fixed estimate within weeks. Yours to keep, with no obligation to build.
Not sure where to start? Discovery is a standalone, fixed-price phase: two to four weeks working through your workflows and settling the scope, timeline and cost. You keep everything we produce and there's no obligation to build with us. If off-the-shelf software is the better answer, we'll say so.