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Start an assessmentHow much should a small business spend on AI?
How to estimate what AI will cost your business: the categories to price, the costs that are easy to miss, and how to judge whether a tool is worth paying for.
The short answer
Set your AI budget from the work you want to change
Start with the task: how often it happens, who does it and how long it takes now. That tells you what a tool or a build is worth to you. Then price four kinds of cost: per-user subscriptions, usage charges, setup work and ongoing support. Check each provider's current price, billing period and VAT treatment before you commit.
Two patterns cause budget problems. One is paying for subscriptions before anyone has a regular reason to use them. The other is a tool chosen by one person that the rest of the team does not adopt, which can lead a business to write off AI before it has been tested properly.
A useful starting question is which process you want to change and how many hours a week it takes today. With that figure, you can compare the full cost of a tool, including the time to set it up and check its output, with the time it could save.
Four kinds of cost
What an AI budget is made of
Prices change often and vary by provider, plan and number of users, so this guide does not quote figures. Use these four categories to build your own estimate from current price lists.
RangeBilled per person, monthly or yearly
Writing assistants, meeting note tools and AI features in software you already use are often priced per user. Count who will use the tool each week, check whether a team plan has a minimum number of seats, and confirm whether the listed price includes VAT.
RangeBilled by volume
Some tools charge by the number of documents processed, conversations handled, minutes transcribed or tasks run. Estimate your monthly volume from current records and check what happens when you go over a plan limit.
RangeUsually a one-off cost
Connecting a tool to your CRM, booking system or accounts package can need configuration or development work. Ask for this to be quoted separately, and include the staff time spent agreeing how the new process will work.
RangeRecurring time or fees
Prompts, templates and connections need updating as your processes change. Allow staff time for this, or budget for outside support if nobody in the team will own it.
Where to start
Four task areas worth costing first
Each of these tasks can be measured before and after, which makes it easier to judge whether the spend is justified. Cost one area and test it before adding another.
CostOften priced per user
A tool transcribes calls and drafts a summary with actions. Measure how long notes and follow-up emails take now, then compare that with the time spent reviewing and correcting the AI summary.
CostOften priced per user
First drafts of emails, proposals, reports and social posts. Trial one main tool for a set period so you can see whether people use it each day and how much editing the drafts need.
CostOften priced by volume
An assistant that answers common questions, routes enquiries and records contact details. Agree which questions it may answer, when it hands over to a person, and who checks the conversations.
CostOften priced by volume
Extracting data from invoices, contracts, forms and applications into your systems. Count how many documents you handle each week, and allow time for a person to check the fields that matter, such as totals and dates.
Costs that are easy to miss
The costs that don't show up on the subscription page
Include these in your estimate before deciding a tool is affordable.
People need time to set the tool up, learn it and agree how it fits the work. Estimate the hours for each person over the first few months and count them as part of the cost.
Off-the-shelf tools do not always connect directly to your CRM, booking system or ERP (enterprise resource planning) software. Check which connections exist and get a quote for any integration work before you commit.
As tools are added, two of them can end up doing the same job. Compare active subscriptions with actual use each quarter and cancel the ones nobody relies on.
Templates, prompts and workflows need reviewing as your processes change. Set aside time each quarter for each tool in regular use.
If you handle client data or work in a regulated sector, check which data passes through which tool before you scale up. Budget for this review, whether your own team does it or you bring in outside help.
Example stacks
Three example stacks by stage
These examples show which categories a business might cover at each stage. They carry no prices because plans and prices change. Price each item from the provider's current list, including VAT and the number of users.
MonthlyPrice each item yourself
TargetFirst use of AI, on one or two tasks
- AI writing assistant, usually priced per user
- Meeting transcription, priced per user or by minutes
- Email drafting add-on for Gmail or Outlook
- Scheduling automation
- Simple website chat assistant
MonthlyPrice each item yourself
TargetTwo or three tasks in regular use
- Writing assistant on a team plan
- Meeting notes with action tracking
- Customer service assistant, often priced by volume
- Document processing, often priced by volume
- Workflow automation connecting your tools
- AI features added to your CRM
MonthlyPrice each item yourself
TargetAI used in several core processes
- Writing tools on a business plan
- Meeting notes platform with shared records
- Custom customer service assistant, plus hosting
- Document processing automation
- Workflow automation across several systems
- Sales assistant connected to your CRM
- Internal knowledge base assistant
- Reporting and analytics assistant
Common questions
FAQs
What is a realistic AI budget for a business just starting out?
Start with one or two tools for a single task, such as meeting notes, first-draft emails or document processing. Price them from the providers' current lists for the number of people who will use them, then add the setup time. Add another tool once the first is in regular use.
Is it worth paying for premium AI tools or should we use free versions?
Free tiers are a reasonable way to test whether a tool fits your work. If the team uses a tool every day, compare what the paid plan adds, such as higher usage limits, admin controls or different data terms, with its cost. Check the provider's current terms for how each plan handles your data. Paying for premium plans across many tools at once makes it harder to see which ones are worth the money.
How do we avoid wasting money on AI tools we don't use?
Give each tool an owner and set a review date, for example 30 days after you start. If the tool is not part of anyone's regular work by then, cancel it. Buying a tool before there is a clear task for it makes waste more likely.
Should we hire someone to manage our AI tools?
In a small team, one interested person can often handle tool choice and setup alongside their main role. As the number of AI processes grows, a part-time operations or systems lead may become worth considering. The answer depends on how many tools you run and how much checking they need.
Are there hidden costs beyond the monthly tool subscriptions?
Yes. The main ones are staff time for setup and learning, integration work if tools need to connect to your systems, time to maintain prompts and workflows, and outside support if you need it. Include these before deciding a tool is affordable.
How much should we budget for a custom-built AI agent or automation?
It depends on the scope: how many systems it connects to, how much data it handles and which actions need a person's approval. Ask for a written quote covering the build, hosting or usage charges, and support. Compare the total with the time the process takes today, including the time a person will still spend checking the output.
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