By Tan Somkiat (LinkedIn), Co-founder, Security & Automation · Co-authored with Claude, Anthropic's AI assistant
Published 11 October 2026 · Prices checked 11 October 2026
- An ERP system (enterprise resource planning) runs finance, inventory, sales, purchasing, production and staff from one shared database, instead of separate apps.
- Most small businesses don't need one yet. Xero or MYOB, connected to the right apps, covers most needs at a fraction of the cost.
- Consider an ERP when manual data transfer, slow month-end closes and inaccurate stock persist even after your systems are connected.
- Common options in Australia: Odoo (published prices), MYOB Acumatica and Oracle NetSuite (both quoted through partners), or a custom ERP built around the systems you already use.
What is an ERP system?
ERP stands for enterprise resource planning. An ERP system is business software that brings the core parts of a business into one system with one database: accounting and finance, inventory and warehousing, sales and customer orders, purchasing, production or manufacturing, projects, and people and payroll.
Because every module reads and writes the same data, a sale reduces stock, triggers a purchase order when stock runs low, and posts to the general ledger without anyone re-entering it. That shared data is the main thing an ERP offers over a collection of separate apps.
Cloud ERP is ERP software hosted by the vendor and accessed through a browser, paid for by subscription. Most ERP systems sold to small and mid-sized Australian businesses today are cloud-based; on-premise ERP, installed on your own servers, is now mainly found in larger or older deployments.
ERP vs accounting software
The line has blurred: Xero, MYOB and QuickBooks now include invoicing, payroll, purchase orders and basic inventory. The difference is scope and depth.
| Accounting software (Xero, MYOB, QuickBooks) | ERP system | |
|---|---|---|
| Scope | Finance, with add-on apps for everything else | Finance, inventory, sales, purchasing, production and people in one system |
| Data | Split across the accounting file and each connected app | One shared database |
| Inventory | Basic stock tracking, or a connected inventory app | Multi-location stock, assemblies, manufacturing and warehousing |
| Cost | Tens of dollars a month | Per-user subscriptions plus an implementation project |
| Setup | Days | Typically months |
Signs your business has outgrown its systems
BDO Australia lists these warning signs that a growing business has outgrown its current systems:
- Your team spends more than three hours a day manually transferring data between systems.
- Month-end closing takes longer than five business days.
- Customer service can't quickly access order histories.
- Inventory counts are frequently inaccurate.
- Several versions of the same spreadsheet exist across teams.
Each of these points to disconnected data. An ERP is one fix; connecting the systems you already have is another, and is usually the cheaper place to start.
Before you buy an ERP: an integrated system from what you have
Many businesses can get most of the benefit of an integrated ERP system by connecting their existing accounting, inventory, ecommerce and CRM software, so each record is entered once and flows everywhere else. If those integrations still leave you with manual work, that's a clear sign it's time for an ERP, and the process mapping won't be wasted.
- Order placed in Shopify or WooCommerce
- Stock reduced in your inventory or ERP system
- Invoice and payment posted to Xero or MYOB
- Order history visible to customer service
- Stock falls below the reorder point
- Purchase order drafted for the preferred supplier
- Approved by a person
- Supplier bill matched to the order on arrival
- Deal marked as won in HubSpot or your CRM
- Customer and sales order created in the ERP
- Fulfilment and invoicing triggered
- Status synced back to the CRM
- Sales, stock and accounting data pulled on a schedule
- Figures reconciled across systems
- Differences flagged for review
- Dashboard updated for management
ERP software for small business in Australia
| Odoo | MYOB Acumatica | Oracle NetSuite | |
|---|---|---|---|
| Best for | Small businesses wanting modular ERP at a published price | Mid-sized Australian and New Zealand businesses, particularly existing MYOB users | Growing businesses with multiple entities or international operations |
| Price | One app free; Standard from A$34.40 per user/month; Custom from A$64 per user/month (first-year pricing) | Not published; estimated A$148–A$215 per user/month | Not published; estimates start around a $999 monthly platform fee plus per-user fees |
| Implementation | Not included; through Odoo or a partner | Estimated A$40,000–A$250,000 | Estimated from about $25,000 for fixed-scope packages |
| Integration | External API access requires the Custom plan | Through MYOB and its partners | Through NetSuite partners |
Estimates for MYOB Acumatica and NetSuite come from an independent pricing site, and the NetSuite figures don't state a currency. Treat both as ballpark only and get quotes from Australian partners.
Custom ERP: one dashboard for the systems you already use
An off-the-shelf ERP asks you to move your business into its system. A custom ERP works the other way: it draws data from the software you already use and presents it in one dashboard designed around how your business operates.
Data can be integrated from any system that offers an API or export, so the information you currently check across several applications appears in one place:
- Client communications: recent emails and messages, and those awaiting a reply.
- Projects: timelines, milestones and upcoming deadlines.
- Inventory: current stock levels and items below their reorder point.
- Finance: payment due dates, overdue invoices and bills to approve.
- Calendar and reminders: appointments, key dates and important reminders.
- Support: tickets that need attention, by priority and age.
- Other integrations: CRM, job management, payroll, ecommerce and reporting data as required.
Because it is built for you, the dashboard shows each person what matters to their role, highlights what needs action, and can send alerts before a deadline is missed. Your existing systems remain in place, so there is no large migration, and a custom ERP can also replace overlapping subscriptions where one tool would do.
How much does ERP cost for a small business?
The subscription is usually the smaller part of the cost. Budget for:
- Subscription: per user, per month, often with extra modules.
- Implementation: configuration, data migration and testing, usually by a partner. BDO estimates a new ERP implementation for a mid-sized business can cost upwards of $150,000.
- Integration: connecting the ERP to your ecommerce store, CRM, payroll and banking.
- Training and change: staff time to learn new processes, and a period of running old and new systems side by side.
ERP implementation and migration
ERP projects succeed or fail on preparation. The steps are broadly the same whichever system you choose:
- Map how the business runs today, including the workarounds, before choosing software.
- Choose the system against that map, not against a feature list.
- Clean and migrate the data: export, deduplicate, map fields, test-load and reconcile record counts before cut-over.
- Rebuild the integrations to your store, CRM, payroll and bank feeds.
- Train staff and run in parallel until the new system's figures match.
We map how your business runs, connect the software you already have, and help you decide whether an off-the-shelf or custom ERP is worth it. We then build the dashboard, integrations and data migration.
Speak to our automation experts →Related automation services
We connect accounting, inventory, ecommerce and CRM systems, migrate data between them, and integrate ERP systems with the rest of your business.
Frequently asked questions
What does ERP stand for?
Enterprise resource planning: software that manages a business's core processes, such as finance, inventory, sales and purchasing, in one system.
Is Xero an ERP system?
No. Xero is accounting software. It can form part of an ERP-like setup when connected to inventory, CRM and job management apps, but it doesn't run those processes itself.
Does a small business need an ERP?
Usually not at first. Most small businesses are better served by accounting software connected to a few specialist apps. An ERP makes sense when those connections can no longer keep data accurate.
What is the difference between ERP and CRM?
A CRM manages customers, leads and sales activity. An ERP manages operations and finance. Many businesses run both and integrate them so won deals become orders automatically.
Comparing smaller systems first? See our guides to business management software, inventory management software and MYOB vs Xero vs QuickBooks.
Sources
- BDO Australia: ERP evolution, the essential guide for growing mid-sized organisations
- Odoo pricing (Australia), checked 11 October 2026
- ERP Research: MYOB Acumatica pricing estimates; ERP Research: Oracle NetSuite pricing estimates, checked 11 October 2026
How this guide was made: Tan Somkiat wrote this guide with Claude, Anthropic's AI assistant, which helped research and draft it. Facts and figures come from the sources linked above and were checked on the dates shown.
This guide is general information. R&T Automation isn't paid by any of these vendors.