For the right task, AI isn't more expensive than an employee. For the wrong one, it is. An AI employee costs a subscription, with Claude roughly 20 to 200 euros a month (as of August 2026), plus your time for setup and ongoing review, and if you work through the API you pay for usage. On the other side, an hour worked cost employers in Germany 45.00 euros on average in 2025, non-wage costs included. But comparing head against head is misleading: an AI employee doesn't replace a position, it takes over tasks. So you have to compare task against task: what does the task cost today in working time, and what does it cost with AI, review included? AI gets more expensive when the task doesn't fit, needs constant correction, usage has no limit, or setup starts without a written process.
I run my business with fourteen AI employees and see the same math at a tax advisory firm that works with AI employees. Who does what at my business is in the org chart, and everything about roles and onboarding is on the AI employees page. This post is only about money, and honestly so, with the line items that tend to be missing from sales pitches.
What an AI employee really costs
Four items belong on the AI side of the calculation. I've broken the first two down in detail in What an AI Employee Really Costs. The other two tend to get forgotten.
1. The subscription. My AI employees run on Claude. Depending on the tier, plans range from roughly 20 to 200 euros a month (as of August 2026, current prices at the provider). That's enough to start, without a server and without a setup fee.
2. Setup. Plan on about an hour to start and then a few feedback rounds over the first weeks until the cleanup work drops toward zero. A process with many rules takes longer: at the tax advisory firm in the example below, the assessment process was only signed off after four clean runs and then watched in parallel for a while. Those hours are real working time from real people, and they belong in the calculation.
3. Ongoing review time. An AI employee whose results nobody looks at isn't an employee, it's a risk. At my business nothing leaves the building without approval. At the tax advisory firm someone reads the completion email, and anything uncertain lands in the front office by email, where a person handles it. Those minutes are small, but they come up every day.
4. Usage, if you work through the API. If you run AI employees through the interface instead of a subscription, you pay by volume: the provider bills in dollars per million tokens. For cleanly scoped tasks that stays manageable, but it can grow when agents read a lot, feed each other work or run in loops. Anthropic gives a ballpark from its own research system: there, agents used about four times the tokens of a chat interaction, and multi-agent systems about fifteen times. No calculation transfers from that, but the direction does.
If an AI employee works with client data, the setup changes too, and with it the price. I use a business subscription with a data processing agreement for that, and depending on the need Claude on AWS Bedrock or open models running locally. What matters from an operator's point of view is in AI and Privacy: What the AI Gets to See; the legal assessment for your case belongs with a qualified professional.
What an hour of work costs
For the human side I use the official figure: according to Germany's Federal Statistical Office (Destatis), businesses in industry and services paid an average of 45.00 euros per hour worked in 2025, up from 43.50 euros in 2024. That covers gross earnings and non-wage labour costs, including employers' social contributions and continued pay during sick leave.
Two caveats so the number doesn't claim more than it can. First, it's an average across all sectors and roles; a specific office worker at your business may be above or below it. Second, it's an estimate that Destatis extrapolates from existing statistics. For your own calculation, the figure from your payroll beats any average.
Example calculation: tax assessments at a tax advisory firm
A tax advisory firm that has AI employees working for it receives 30 to 40 tax assessments a day, digital alone. Before, every one of them went through the office, following around 45 rules, at roughly 2 minutes per digital assessment. Today two AI employees process these assessments: one watches the mailbox and hands over, the other checks and files.
The following is my own example calculation, not the firm's accounts:
The post isn't included. It took up to two hours depending on volume, and because the volume varies, I don't extrapolate it.
On the AI side are access, setup and review time. What this firm pays for that, I won't say; it belongs in the client contract. This much I can say: a firm setup with its own server, DATEV user and support is more than a subscription. The 20 to 200 euros apply to getting started in your own business, not to this case. You have to run the numbers with your own figures anyway.
And then the part cost comparisons like to leave out: the 60 to 80 minutes are freed-up time, not saved salary. The people at the firm no longer sort assessments, and no job was cut there. Whether the free hour turns into money depends on what the team does with it. That's why "AI instead of employees" is the wrong calculation, and I explain why in Can AI Replace Employees? An Honest Answer. The full case is in AI Employees at a Tax Advisory Firm.
When AI costs more than the human
There are cases where an AI employee costs more than it brings in. These five are the ones I see most often:
- The wrong task. An AI employee for the delicate client conversation, for negotiations or for decisions without a rule mostly produces correction work. What fits and what doesn't is in Which Tasks You Can Hand Off to AI.
- Constant correction. If review takes as long as the task used to take, you've gained nothing. If the cleanup doesn't drop after a few feedback rounds, the personnel file is usually missing context, and that's where you sharpen things, not in the output.
- Usage without a limit. Through the API, every round is paid for. Run agents without a cap, without a clear brief and without a stop condition, and you'll notice it on the invoice, not in the result.
- Setup without a process. An AI employee can only apply rules that are written down. The assessment process at the tax advisory firm had around 45 of them. If they're missing, you pay for setup twice: once for the attempt and once for the writing-down that was needed anyway.
- Abandoned attempts. The most expensive AI employee is the one you half-start three times. The cost then isn't the subscription, it's the hours that leave nothing behind.
Task against task: how to calculate it yourself
The calculation doesn't need a spreadsheet, just five numbers for a single task:
- Pick a task that repeats at least weekly and has clear rules.
- Measure the time for a week: how many minutes does the task cost today?
- Multiply by your labour cost per hour, ideally from your payroll, otherwise using the Destatis average as a rough approximation.
- Estimate the AI side: share of the subscription or usage, one-off setup hours, review time per week.
- Compare again after a few weeks, once setup is done and the cleanup has dropped. The first week is always the most expensive.
If the result is close, the task probably isn't the right first one. If it's clear, you've found your first AI employee. How the start works is in Hiring an AI Employee: The Process.
What no calculation shows
A few things don't fit in a table but belong to the honest answer. In favour of the AI employee: its knowledge sits in a personnel file that belongs to you. When a person leaves, their onboarding leaves with them; the file stays. What that looks like for my bookkeeping is on Peter, my bookkeeper, and for the inbox on Frieda.
In favour of the human: everything that takes relationship, experience and responsibility. That can't be converted into euros per hour, and it doesn't go away when an AI employee sorts the assessments. How to explain this to your team without it sounding like a declaration of war is in AI Colleague or Competitor?.
Frequently asked questions
Is AI cheaper than an employee?
For a suitable task, usually yes, because a subscription runs roughly 20 to 200 euros a month (as of August 2026) and an hour of work cost 45.00 euros on average in Germany in 2025. But the comparison only holds task against task, with setup and review time. An AI employee doesn't replace a whole position.
What does an AI employee cost per month?
With Claude, the subscription runs roughly 20 to 200 euros a month depending on the plan (as of August 2026). On top come your setup time, ongoing review time and, if you use the API, usage. The breakdown is in What an AI Employee Really Costs.
What does an hour of work cost in Germany?
According to Destatis, employers paid an average of 45.00 euros per hour worked in 2025, non-wage costs included. That's an average across all sectors; for your calculation, the figure from your own payroll is more accurate.
When is an AI employee not worth it?
When the task consists mainly of conversation, judgement or responsibility, when review takes as long as the task itself, or when the rules aren't written down anywhere. Then you're paying for corrections instead of relief.
What to do next
Take the task in your office that costs you the most minutes and runs on fixed rules, and measure it for a week. With that one number and your labour cost per hour, you'll know more than after any cost comparison online.
How other businesses picked and costed their first task is something we discuss in my community, with ready-made role packages as a starting point.
