Reformat Labs

    AI budgets for SMEs

    How Much Should a Small Business Spend on AI?

    Real numbers for 5-50 person businesses - what to spend, when to spend it, and what to watch out for.

    £150average monthly AI tool spend for a UK SME in 2026
    3tools running concurrently in most productive small teams
    40%of SME AI budgets spent on tools that are never used consistently
    6 wksbefore most teams settle on a stable, cost-effective toolset

    The short answer

    Most SMEs should spend between £100 and £500 a month - and the figure depends on use case more than headcount

    Quick answer

    For a 5-15 person business in 2026, £100-300 per month covers a productive AI stack across writing, meetings, and basic customer comms. Beyond that, spend should be driven by specific ROI - not by what competitors are using or what vendors are selling.

    The businesses that overspend on AI typically buy tools speculatively - subscribing before they have a clear daily trigger for using them. The businesses that underspend tend to be the ones where one person picked a tool, it didn't get adopted across the team, and AI got written off as not worth it.

    The most useful question isn't "how much should we spend?" It's "what specific process are we automating, and how many hours a week does it currently take?" That answer tells you what a tool is worth - and whether any given subscription is justified.

    Typical monthly spend by team size

    What businesses at your stage are typically spending

    These are real-world ranges based on businesses actively using AI tools - not aspirational figures from vendor marketing.

    1-5 people
    £50-150 / month

    One or two SaaS AI tools covering writing assistance and meeting notes. No custom build needed at this stage. Focus on payback per hour saved.

    5-15 people
    £150-400 / month

    Three to five tools across content, scheduling, and first-response customer comms. This is where a light discovery session starts to pay off - to avoid duplication across subscriptions.

    15-30 people
    £300-700 / month

    Multiple use cases running simultaneously. At this scale, it is worth auditing spend every quarter. Custom automation for one or two high-volume processes often makes more sense than stacking more SaaS tools.

    30-50 people
    £500-1,200 / month

    Dedicated automation for document handling, onboarding, reporting, or customer service. Often a mix of SaaS tools plus one or two purpose-built agents. ROI measurement becomes important to justify spend.

    What to budget for first

    The categories with the fastest and most consistent payback

    Prioritise these before branching into more complex or experimental use cases.

    Meeting notes and transcription£15-25/month

    One of the fastest paybacks in AI. Tools like Otter or Fireflies save 30-60 minutes per person per week across a team that attends regular meetings.

    AI writing assistance£18-30/month

    First drafts of emails, proposals, reports, and social posts. Most teams see consistent daily use within two weeks. The key is picking one primary tool rather than trialling three at once.

    Customer service first response£40-100/month

    An AI that handles common inbound questions, routes enquiries, and captures lead details. Particularly valuable for businesses that receive volume outside office hours.

    Document processing£30-80/month

    AI extraction from invoices, contracts, forms, and applications. Replaces manual data entry for businesses that process ten or more documents per week.

    Hidden costs to watch

    The costs that don't show up on the subscription page

    These are the items that make a £40/month tool feel expensive after six months - and that most businesses only identify in retrospect.

    Staff time for setup and learning·Budget 2-5 hours per tool per month for the first quarter. This is the most commonly missed cost and the one that most often derails an otherwise sound tool choice.
    Integration development·Off-the-shelf tools rarely connect natively to your existing CRM, booking system, or ERP. A light integration can cost £300-1,500 and is worth budgeting before you commit.
    Duplicate subscriptions·Most SMEs running AI for 12 months are paying for at least one redundant tool. Quarterly audits of active versus actually-used subscriptions typically recover £50-200 per month.
    Prompt engineering and maintenance·AI tools don't stay sharp without attention. Templates, prompts, and workflows need reviewing every few months as your business processes change. Allow for a few hours per quarter per tool.
    Security and compliance review·For businesses in regulated industries, or those handling client data, a one-off review of which data passes through which tool is essential before scaling. Typically £500-2,000 as a consultancy engagement.

    Sample stacks

    Three real-world monthly AI stacks

    These are illustrative examples - the specific tools matter less than the categories they cover. Prices are approximate 2026 figures.

    Lean starter

    ~£80/month1-10 people, first AI deployment
    AI writing assistant (e.g. ChatGPT Plus) - £20/month
    Meeting transcription (e.g. Otter.ai Pro) - £16/month
    Email assistant via Gmail/Outlook add-on - £10/month
    Scheduling automation (e.g. Calendly) - £12/month
    Light chatbot for website (e.g. Tidio) - £20/month

    Growing team

    ~£320/month10-25 people, 2-3 active use cases
    AI writing suite (team plan) - £60/month
    Meeting notes and action tracking - £35/month
    Customer service AI (e.g. Intercom Fin) - £90/month
    Document processing (e.g. Nanonets) - £70/month
    Workflow automation (e.g. Make.com) - £45/month
    CRM AI features (add-on) - £20/month

    Full deployment

    ~£700/month25-50 people, AI embedded in core operations
    Enterprise AI writing tools - £120/month
    Meeting intelligence platform - £60/month
    Custom-built customer service agent (hosting) - £60/month
    Document processing automation - £120/month
    Advanced workflow automation - £90/month
    AI sales assistant (CRM integrated) - £100/month
    Internal knowledge base AI - £80/month
    Reporting and analytics AI - £70/month

    Common questions

    FAQs

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