Schedule 36 of the Finance Act 2008 is one of HMRC's most-used statutory tools, but it is also one of the least understood by taxpayers. A Schedule 36 notice can compel the production of documents and information, and failure to comply triggers penalties — but the powers are not unlimited and the taxpayer has clear, enforceable rights.
What Schedule 36 covers
Schedule 36 gives HMRC the power to require any person to provide information or produce documents that are reasonably required for checking that person's tax position. There are several notice types under the schedule, the most common being:
- Taxpayer notices issued to the person whose tax is being checked.
- Third-party notices issued to banks, accountants, customers, or anyone else who may hold relevant information.
- Identity unknown notices for groups of taxpayers whose identity HMRC does not yet know.
- Inspection powers to enter business premises to inspect business documents and assets.
The "reasonably required" test
Every Schedule 36 notice must request information that is reasonably required to check tax position. This is the principal anchor of taxpayer protection. The phrase is not a rubber stamp — it requires:
- A clear nexus between the items requested and a specific tax position being checked.
- Proportionality: the burden of producing the items must not be excessive relative to the issue.
- Relevance: documents already held by HMRC, or freely available, cannot be re-demanded.
- Specificity: blanket fishing requests for "all documents relating to the business" are vulnerable to challenge.
Statutory exclusions
Schedule 36 explicitly excludes certain categories of document and information:
- Legally privileged material — communications between a taxpayer and their legal adviser for the purpose of giving or receiving legal advice. Note that accountant-client communications are not legally privileged in the UK (a key difference from some other jurisdictions).
- Personal records in some narrow circumstances.
- Auditors' working papers are subject to specific rules and partial exclusions.
- Old documents beyond the relevant time limits (typically six years).
- Journalistic material and certain other categories defined in the schedule.
Notices issued with tribunal approval
Some Schedule 36 notices, particularly third-party notices, require prior approval by the First-Tier Tax Tribunal before being issued. The approval test broadly mirrors the "reasonably required" standard but adds an independent judicial filter. Tribunal-approved notices cannot be appealed in the same way as ordinary notices, although the underlying tax position can still be disputed.
The right of appeal
An ordinary taxpayer notice can be appealed to the First-Tier Tax Tribunal within 30 days. Grounds include:
- The information is not reasonably required.
- The items requested fall within a statutory exclusion.
- The notice is too vague or too broad to comply with.
- Compliance would be unreasonably burdensome.
While appeal is pending, the obligation to comply is suspended for the contested items.
Penalties for non-compliance
Failure to comply with a Schedule 36 notice triggers an initial £300 penalty, plus daily penalties of up to £60 per day for continuing failure. For deliberate non-compliance or providing false information, the penalty regime escalates, and HMRC can also apply to the tribunal for "tax-related penalties" of up to 100% of the relevant tax. Habitual non-compliance can ultimately lead to criminal prosecution.
Practical management of a Schedule 36 notice
- Read the notice carefully. Identify exactly what is being requested and the deadline.
- Identify the tax position being checked. A notice that does not state what is being investigated is potentially defective.
- Triage the items. Categorise into: clearly required and easy to produce; required but burdensome; arguably outside scope; legally privileged or excluded.
- Engage early. A constructive conversation with the case officer can narrow the scope or extend the deadline. HMRC often agrees reasonable variations.
- Document compliance. Send the response with a covering schedule listing exactly what is being provided and what is being withheld and why.
- Appeal in time. If parts of the notice are genuinely problematic, lodge an appeal within 30 days for those items, while complying with the uncontested items.
Third-party notices: special concerns
If you are the subject of a third-party notice — typically your bank, accountant, or a customer has been asked for information about you — you have rights to be notified (in most cases) and to make representations. Tribunal approval for third-party notices is more common precisely because of the privacy implications.
This article is general information. If a Schedule 36 notice has been received, particularly one that appears overbroad or that touches privileged material, professional advice should be sought promptly. Our business advisory team supports clients across compliance, investigations, and ongoing tax planning. Reach us via the contact page or book a confidential call.