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NO

As of 13 August 2026, AI cannot check whether your contract is IR35 compliant.

This still needs a person who signs their name to it.

Can you do it?

5 minutesto a draft.

n/ait cannot be self-verified.

Cost, all in£0

Skill neededchat-fluent

Who has to check ita professional

What the alternative costsGenie AI is a UK-focused AI legal assistant for drafting and reviewing everyday contracts.

If this goes wrong, you rely on an incorrect status assessment and face tax, interest or compliance consequences when the arrangement is examined.

What to actually do

  1. Hand it to a person

    The route this page recommends

    Someone with a licence or accountable authority has to sign this before it counts.

  2. Use a tool built for this

    Second choice

  3. Do it yourself

    The distant third

    A chat interface gets you a draft, but you cannot verify it yourself. That is the catch.

    How to actually do it

    1. Open the contract and save a copy with any unrelated personal information removed.
    2. Gather a factual description of the engagement, including who controls the work, required hours, supervision, substitution rights, equipment, payment arrangements, termination rights and how integrated you are into the engager's organisation.
    3. Paste the contract and the working-arrangement description into an AI chat with the supplied prompt.
    4. Check every point in the AI response against the exact contract wording and your actual working practices, correcting any invented or inaccurate fact.
    5. Open the current IR35 guidance and CEST service on GOV.UK and use the AI's unanswered questions to gather the information those sources require.
    6. Send the contract, corrected factual summary and your GOV.UK results to a UK solicitor, tax adviser or IR35 specialist before relying on the assessment.

    Prompt

    Review the contract text below for IR35-related issues under UK rules. This is not professional advice and you must not give a definitive compliant or non-compliant conclusion. Separate the analysis into: control, personal service and substitution, mutuality of obligation, financial risk, opportunity to profit, provision of equipment, integration, right of termination, and the actual working practices that could matter more than the written contract. For each point, quote or identify the relevant clause, explain what it may suggest, state what factual information is missing, and distinguish wording from what happens in practice. Do not invent facts, tax figures, case law or HMRC policy. List the questions I should answer before using HMRC's current guidance or CEST, and identify which points need checking with a UK solicitor, tax adviser or IR35 specialist. Contract: [PASTE CONTRACT TEXT HERE]. Working arrangement: [DESCRIBE WHO CONTROLS THE WORK, HOW SUBSTITUTION WORKS, HOURS, EQUIPMENT, PAYMENT, TERMINATION, AND WHETHER THE ENGAGER TREATS YOU AS PART OF ITS ORGANISATION].

    Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.

What it gets wrong

  • AI cannot determine the employment relationship from the contract alone because the actual working practices can carry more weight than the wording.
  • AI cannot take responsibility for an IR35 status decision or any resulting tax and compliance consequences.
  • AI cannot resolve ambiguous evidence about control, substitution or integration as reliably as a specialist applying the facts to the relevant rules.
  • AI cannot replace a professional review where the arrangement is valuable, disputed or likely to be examined by HMRC.

What makes this a NO: legal accountability, regulated advice and judgement under ambiguity.

How we scored this

Five axes, each scored nought to two by hand: ten means AI carries the task cleanly, and the thresholds that turn a total into YES, PARTLY or NO are published in the methodology. Each axis name links to its definition.

AxisScore (0–2)
Output2
Inputs1
Verification0
Liability0
Effort delta1
Total4 / 10

The methodology and its thresholds are published in full.

FAQ

Can ChatGPT tell me if my contract is inside or outside IR35?
It can flag clauses and organise the facts, but it cannot safely give you a final IR35 status decision. The answer depends on how the engagement operates in practice as well as on the contract, and this is not professional advice.
What does AI need to check my IR35 contract?
Give it the contract and a factual account of control, substitution, supervision, hours, equipment, payment, financial risk, termination and integration. Do not ask it to fill gaps or assume that the written terms match what happens day to day.
Can I use HMRC CEST after asking AI about IR35?
Yes, you can use the AI's list of missing facts to prepare for HMRC's CEST service and compare the answers with the contract and actual working practices. CEST is an official process, but a serious or disputed case should go to a UK solicitor, tax adviser or IR35 specialist.
Do I need an IR35 specialist to review my contract?
You should use a UK solicitor, tax adviser or IR35 specialist before relying on the result where the tax exposure is significant, the facts are disputed or the engager expects a formal assessment. AI can prepare a clearer evidence pack for that review, but it does not carry the liability.

Nearby answers

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Assessed by gpt-5.6-luna (gpt-5.6-luna) on 2026-08-13, second-checked by an independent model. Wrong somewhere? Email [email protected] and it gets re-checked.

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