How Much Does AI Automation Cost? Real Numbers for SMEs in 2026

The number everyone dances around

Most agencies won't publish prices. Here's the honest range for SME-scale AI automation in 2026:

• A single focused workflow (e.g. automated order intake from one channel into your ERP): €5,000–€20,000 setup, €200–€800/month running.
• A multi-workflow deployment (orders + invoices + customer queries, several channels): €20,000–€75,000 over the first months, €500–€2,500/month running.
• Enterprise programs with custom integrations, compliance requirements, and dedicated support: six figures. If you're reading a blog post for pricing, this probably isn't you yet.

DIY with tools like n8n costs less cash and more time: a technical founder can build a working prototype in weekends, but budget real hours for the last 20% — error handling, edge cases, monitoring — which is most of the work.

What actually drives the cost

1. Integration surface. An ERP with a documented API is cheap to connect. A 2009 ERP where the "API" is a nightly CSV export costs multiples more.
2. Input messiness. Structured web forms are easy. Handwritten delivery notes photographed in a warehouse are not. Messier input → more validation and review tooling.
3. Risk tolerance. Read-only automation (answering "where's my order?") is cheap. Write automation (creating orders, moving money) needs guardrails, audit trails, and approval flows — that's engineering time.
4. Hosting model. Self-hosted costs more upfront, less per month, and keeps data in-house. Cloud reverses the trade.

Running costs: the LLM bill is smaller than you think

People expect the AI usage bill to dominate. It rarely does. Processing an order or invoice costs cents in model fees; a thousand documents a month is tens of euros. The real monthly costs are hosting, monitoring, and the human time reviewing flagged cases — plan for those, not the token bill.

How to estimate payback

Take one process. Count: documents or requests per month × minutes of human time each × loaded hourly cost. That's your monthly burn. A process consuming 60+ hours a month typically pays back a focused automation project within 6–12 months. Under 20 hours a month, automate it with off-the-shelf tools or not at all — custom work won't pay back.

Red flags in quotes you receive

• A fixed price quoted before anyone looked at your systems.
• No mention of what happens when the AI is wrong (review queues, escalation, rollback).
• "Unlimited automations" subscriptions — automation value comes from depth on your critical processes, not quantity.
• No exit path: ask who owns the workflows and where they run if you part ways. (Our answer: you own them, and self-hosting means they run on your servers.)

For how we scope this conversation, see choosing an AI automation partner.