Last reviewed: 30 May 2026
Quick summary
- You are selling chatbots to local businesses or ecommerce stores and need to separate build fees, hosting, model usage, support retainers and VAT turnover.
- Record sales invoiced to clients before deducting hosting, model usage, platform charges or refunds.
- The useful accountant conversation is about evidence: client chatbot scope, setup and retainer invoices, hosting and AI model usage invoices.
Topic hub: Side hustle tax hub
Direct answer
If this activity is organised to make money, the tax question is not whether it started from influencer advice. It is whether you have taxable trading income, what your gross income is for the tax year, what evidence supports your costs and whether Self Assessment, VAT or MTD need checking. For this page, focus on sales invoiced to clients before deducting hosting, model usage, platform charges or refunds.
How money actually arrives in this niche
People in this niche rarely think in neat accounting words. They think in bot setup fees, training fees, hosting recharges, support retainers, model usage markups and maintenance work. That is why a generic side-hustle calculator is not enough. You may see a payout, a dashboard, a retainer, a free product, a credit balance or a Stripe transfer and assume that is the tax number. It often is not.
The practical starting point is to list each income stream in the language of the platform or client. Then translate it into accounting records: gross income, refunds, platform fees, contractor costs, software costs and any non-cash value connected to work. This makes the page useful before an accountant call because the reader can send a clean summary rather than a folder of screenshots.
What figure should you record?
Record sales invoiced to clients before deducting hosting, model usage, platform charges or refunds. Keep the gross figure visible even if the platform pays out a smaller amount. If a client or platform deducts fees before money reaches your bank, the bank deposit may be a poor shortcut. If you receive products, credits, samples, usage rights or commission, keep those notes with the same discipline as cash receipts.
For the trading allowance, GOV.UK refers to gross trading income. That means you should understand the gross figure before deciding whether the trading allowance or actual expenses is more useful. If the activity grows, the same gross-income habit also helps with VAT and MTD checks.
Records to gather
For this exact niche, collect these before filing or speaking to an accountant:
- client chatbot scope
- setup and retainer invoices
- hosting and AI model usage invoices
- support tickets or change logs
- VAT turnover tracker
Add a one-line note explaining what each cost was for. A receipt called "subscription" is less useful than "ChatGPT Team for client chatbot builds, May 2026". That small habit is the difference between an accountant giving quick guidance and spending time reconstructing the story.
Real examples
- You charge GBP 1,200 for a chatbot build and pay GBP 180 in tool costs. The GBP 1,200 is income; the tool costs need their own evidence.
- You bill GBP 99 per month for hosting and support. Recurring small retainers still count toward turnover.
- A client cancels and receives a partial refund. Keep the credit note or refund evidence so income is not overstated.
Mistakes to avoid
- Treating hosting recharges as invisible because they pass through your account.
- Mixing personal AI experiments with client usage charges.
- Ignoring VAT turnover because profit feels low.
- Not keeping scope documents when clients ask for revisions.
What this guide is focusing on
Use this guide if you are a business owner watching sales rise and worrying whether VAT is based on profit, payouts or taxable turnover. For AI chatbot agency tax UK: client retainers, setup fees and VAT records, focus on how the rule meets the records, thresholds, software and decisions you actually have in front of you.
What figure, record or decision should you pin down?
Pin down rolling 12-month taxable turnover, expected next-30-day sales, customer type, pricing impact, refunds, marketplace fees and software readiness. That gives an accountant something specific to check and stops the conversation becoming a vague discussion about tax in general.
Records to gather
- monthly taxable turnover
- next-30-day expected sales
- customer mix
- refunds and exempt or zero-rated sales
- invoicing software readiness
Real examples for this situation
- A marketplace seller may receive a payout after fees, but VAT turnover starts with taxable sales rather than the payout.
- A consultant with one large upcoming contract may need the next-30-day test before the rolling 12-month total catches up.
- A business selling mostly to VAT-registered customers may think differently about pricing than one selling to consumers.
A common mistake is waiting until annual accounts are prepared instead of monitoring rolling turnover each month. The safest pattern is to write down the figure, source, date and evidence before deciding whether DIY, software or accountant support is enough.
Questions to ask an accountant
- Are hosting and model usage charges my costs or client-paid costs?
- Should setup and support be invoiced separately?
- Does VAT turnover use gross chatbot fees?
- What records do I need if a client cancels?
- Would a limited company be worth discussing before taking larger clients?
Send the questions with your totals. A useful accountant call starts with the money model, not just the job title.
Official guidance checked on 30 May 2026
Rules and thresholds can change. These GOV.UK sources were checked during this rewrite and should be rechecked before important filing decisions.
Related guides and tools
FAQs
What figure should I record?
sales invoiced to clients before deducting hosting, model usage, platform charges or refunds
What records should I keep?
client chatbot scope, setup and retainer invoices, hosting and AI model usage invoices, support tickets or change logs, VAT turnover tracker.
When should I speak to an accountant?
Speak to an accountant if the activity is regular, crosses a reporting threshold, involves VAT, MTD, gifted products, foreign currency, contractors, company structure or a tax return you are not confident filing.