How much does a merchant ERP system cost? A complete pricing guide
- Jul 14
- 7 min read
Updated: 8 hours ago
Ask three ERP suppliers what their system costs and you'll get three different answers, structured three different ways. That's not suppliers being evasive - ERP pricing depends on several variables: the type of package, how it's hosted, how many people will use it, and what's involved in getting your business live on it.
For a trade or distribution business - builders merchants, timber merchants, steel stockholders, plumbers merchants - getting this right matters more than for most software purchases. An ERP system touches order processing, stock, purchasing and accounts every day, for every member of staff, and the wrong fit costs time, accuracy, margin and license fees for as long as you're using it.
This guide breaks down what drives ERP cost, what a realistic budget looks like, and what to check before comparing quotes.
Contents
What type of ERP package suits your business?
Before comparing prices, it's important to be clear on what type of system you're actually pricing - because "ERP" covers a wide range of products at very different price points, and not all of them will do what a merchant business needs.
Financials software
General financials packages - Xero, QuickBooks, Sage and similar - typically include basic order processing and inventory features alongside accounting. They're inexpensive, usually under £100 per month for a small business package, and many merchant businesses already pay for one to handle their accounts.
The limitation is scope. These systems are built around simple stock items, not the operational complexity of a trade business - multi-branch stock, supplier-specific pricing, delivery scheduling, trade account terms, and so on. They're a sensible starting point for a very small operation, but most merchant businesses outgrow them quickly.
Industry package
An industry-specific ERP package is built around how merchant businesses trade, and is typically supported by people who understand the sector - stock control for variable-length or weight-based products, branch transfers, trade pricing structures, supplier rebates and the rest.
You won't have unrestricted control over screen design or core functionality the way you might with a custom build, but if the supplier is also the developer, gaps can often be closed through configuration or development requests. For most merchant businesses, this is the best option, and it's the focus of the rest of this guide.
Custom application
A custom build gives you exactly what the business needs - no more, no less. It's also the most expensive and slowest option to deliver, and it only really makes sense where a business has really unusual trading requirements that an industry package can't accommodate.
Even a custom system still needs to do everything a standard merchant system does, on top of whatever makes your business different - so the "unique" requirements are rarely the majority of the build cost. Custom development is typically priced at £300–£800 per contractor day, delivered either on a Rapid Application Development (RAD) platform - faster to build, higher ongoing running costs - or coded from scratch, which takes longer to build but is cheaper to run.
Ten-25 has invested more than 30 man-years building systems on a RAD platform. You won't need anywhere near that for a single business, but it's an indicator of how much work sits behind "standard" merchant functionality that a custom build would otherwise need to replicate from scratch.
Breaking down the cost of an industry ERP system
Once you're comparing industry packages, the overall cost comes down to three components: infrastructure, licensing, and implementation. Suppliers bundle these differently, so let’s go into each one separately before looking at a total figure.
Infrastructure and hosting
ERP systems are multi-user, so they need to run somewhere - either on-site servers or a cloud platform.
On-site servers start from under £2,000 and scale with specification (processor, RAM, storage, operating system). Larger setups may need multiple servers to share load and handle backup and security separately. Installation and configuration is typically charged by an IT provider at £500–£1,200 per day.
Cloud platforms host the application in a commercial data centre, providing resilience, security and scalability that would be expensive to replicate on-site - replicating that infrastructure for even a handful of servers can run into hundreds of thousands of pounds.
Cloud ERP is delivered in one of two ways:
Single-tenanted - your business runs its own instance on its own cloud container. More control over update timing, backup and restore, but a higher infrastructure cost.
Multi-tenanted - one application instance is shared across multiple businesses, each only seeing their own data. Cheaper, often bundled into the subscription, but less control over when changes happen.
A single-tenant cloud setup for a merchant business typically runs to £160–£1000 per month depending on scale, usually based on turnover in the £1m–£100m range.
Application licences and subscription
Most ERP pricing is based on user numbers - either named users (a licence tied to a specific person) or concurrent users (a shared pool of licences used by a larger team). Concurrent licensing tends to cost more per seat, since the same licence may be in use by different people throughout the day.
Other pricing models exist - fixed cost per company, percentage of revenue, transaction volume - but per-user remains the most common, so it's the most useful basis for comparison.
Cost per user scales with the features available to that role:
A simple role - a driver or stocktaker, for example - might be around £70 per user per month.
A full trading user with comprehensive functionality and support typically runs £100–£200+ per user per month.
On top of the core licence, ongoing services such as helpdesk support, system updates and backups commonly add £10–£50 per user per month, though many SaaS subscriptions bundle these into a single price.
Historically, ERP licensing was a one-off purchase with services charged separately. With SaaS, most systems now run on a monthly per-user subscription that bundles the licence with hosting, support, updates and backups into one figure - which makes comparing suppliers easier, provided you know exactly what's included.
Implementation, training and ongoing support
Moving onto a new ERP system is a significant project. Data needs to be set up correctly, the system tailored to how you operate, and your team trained and confident enough to go live.
Most industry ERP providers offer an implementation package covering this, charged either daily or as a fixed price. As a rough guide, budget around £1,200 per user for implementation and training - more for smaller systems (under 5 users) or where you're migrating off an older legacy platform. Costs can come down if you're prepared to take on more of the data import and training work yourselves.
It's also good to check what's included for on-site work - travel, additional days for complex data migration, and post-go-live support are common areas where costs can be itemised separately or bundled in, depending on the supplier.
What to look for when comparing ERP pricing
Headline monthly figures are easy to compare; what's actually included behind them often isn't. Before comparing quotes, check each supplier's answer to the following:
Is the licence per named user or concurrent user? This significantly affects cost if your team works shifts or shares logins.
What's bundled into the subscription? Support, updates, backups and cloud hosting are sometimes included, sometimes charged separately - ask for a breakdown rather than a single figure.
What does implementation actually cover? Data migration, configuration, training, and go-live support can be priced very differently between suppliers offering similar headline rates.
What are the integration costs? If you already use Xero, Sage, QuickBooks or an ecommerce platform, check whether integration is included, a one-off setup cost, or an ongoing add-on.
How is the contract structured? Annual subscriptions are typically cheaper per month than monthly rolling contracts - but check the commitment length and any early termination terms.
What happens as you grow? Adding users, branches or additional modules later should have a clear, predictable cost rather than requiring a renegotiation.
How Merchanter is priced
Merchanter is priced as a per-user monthly subscription on an annual contract, starting from £90 per user per month. That figure includes the application licence, cloud hosting, updates, backups and support - there's no separate infrastructure cost to budget for.
Merchanter is available across four editions - Trade, Enterprise, Forward Trade and Forward Enterprise - covering different levels of operational complexity, from builders merchants and softwood traders through to hardwood specialists and businesses with forward contracting and agency sales requirements. Each edition is designed so you're not paying for functionality your business doesn't need, while leaving a clear upgrade path as requirements grow.
Implementation support is included in all editions rather than charged as a separate project - covering data migration, configuration and training to get your team live and confident on the system.
For businesses already using Xero, Sage, QuickBooks or iplicit, Merchanter's accounting integrations keep stock and financial data aligned without manual reconciliation - check the "integration costs" question above when comparing alternatives.
Total cost of ownership: the real comparison
Different suppliers package infrastructure, licensing and implementation differently - some bundle everything into a single subscription, others itemise each component. The most useful comparison isn't the headline monthly figure, but the total cost of getting the system live and keeping it running, set against what it does for the business.
The real question isn't "what does the system cost" - it's "what does getting this wrong cost". A system that's a poor fit might only cost a few thousand pounds a year directly in licence fees, but the impact on stock accuracy, margin visibility and time spent working around its limitations can add up to far more than the difference in subscription cost. The right system, by contrast, tends to pay for itself many times over through better margin control, leaner stock holding, and time given back to the team.
Key principles for evaluating ERP costs
ERP cost is made up of three components - infrastructure, licensing and implementation - and suppliers bundle these differently, so compare like for like rather than headline figures alone.
Per-user pricing is the most common model; check whether licences are named or concurrent, as this materially affects cost for shift-based teams.
A realistic implementation budget for an industry package is around £1,200 per user, though this varies with team size and data complexity.
Cloud subscriptions that bundle hosting, support, updates and backups simplify budgeting but require checking exactly what's included before comparing prices.
Integration costs with existing accounting or ecommerce platforms can materially affect total cost and are often overlooked in initial comparisons.
The cheapest system on paper is rarely the cheapest in practice - the cost of a poor fit shows up in margin, stock accuracy and time, not just the invoice.
Want to see what this looks like for your business specifically?
Book a call and we'll talk through your current setup, what you're trying to achieve, and how Merchanter's editions and pricing would apply.
If you want a structured way to weigh up your options first, our ERP evaluation checklist walks through exactly what to look for before you commit to a new system.
