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Aipedia: Payroll bureaux
If an AI-validated RTI submission goes in late or wrong, the employer faces HMRC penalties and often seeks to recover them from the bureau. PI may pay compensation for negligence, but not usually the penalty as a penalty.
Part of: AI in payroll bureaux
In short
Bureaux use automation and AI validation to prepare and send Full Payment Submissions (FPS) and Employer Payment Summaries (EPS). HMRC charges monthly late filing penalties from £100 to £400 depending on the number of employees, and inaccuracy penalties depend on whether the error was careless or deliberate. The employer is liable to HMRC, but may claim the loss from the bureau. PI usually responds to a negligence claim for compensation, subject to the wording, while penalties themselves are usually excluded or treated as uninsurable. From 18 November 2026, third-party payroll providers also need an agent services account to deal with HMRC.
Real Time Information (RTI) requires employers to report pay to HMRC on or before each payday through an FPS, and to send an EPS for adjustments or for months when no employees were paid. Bureaux file these for clients in bulk. AI-assisted validation now checks submissions for missing National Insurance numbers, starter and leaver errors, unusual year-to-date movements and schemes where no submission is expected.
Automation reduces missed deadlines, but it can also send a wrong figure faster and to more schemes at once. A validation tool that has learned to pass a recurring pattern will keep passing it.
HMRC's guidance on what happens if you do not report payroll information on time sets late filing penalties per PAYE scheme each month: £100 for 1 to 9 employees, £200 for 10 to 49, £300 for 50 to 249 and £400 for 250 or more. They can apply when an FPS is late, when fewer FPSs arrive than expected, or when a nil EPS is missing. HMRC does not usually charge where payments are reported within three days of payday, for a new employer's first FPS within 30 days, or for the first late report in a tax year. Inaccuracy penalties depend on behaviour: errors made despite reasonable care attract no penalty.
The employer remains liable to HMRC. The bureau owes the employer reasonable care and skill under section 13 of the Supply of Goods and Services Act 1982. From 18 November 2026, HMRC guidance says providers whose only HMRC contact is third-party payroll must register as tax advisers to keep dealing with HMRC for clients. See HMRC, AML and AI rules.
Illustrative scenario: a bureau changes its submission process and relies on an AI tool to batch and validate FPS files. A setting causes submissions for several smaller clients to fail silently. The dashboard shows them as queued rather than rejected, and nobody checks HMRC acknowledgements. Penalty notices arrive weeks later, followed by interest and client complaints.
Other examples include an EPS claiming the wrong recoverable statutory pay, a leaver date applied to the wrong employee, or a tool "correcting" a figure that was right. Where an error was careless, a client may also face inaccuracy penalties.
PI usually responds where the employer sues for the loss caused by the bureau's negligence, subject to the policy terms. The penalty itself is a different matter. Many wordings exclude fines and penalties, and some penalties cannot lawfully be insured. Whether a client can recover a penalty as damages, and whether the policy then pays, depends on the facts and the wording. See are fines and penalties covered by PI.
Defence costs, the client's professional costs of putting things right and interest are more often within scope. Notify early: a batch of penalty notices across clients may be a circumstance worth reporting. See circumstance notification.
The following steps reduce RTI risk when automation is involved:
Apex arranges professional indemnity for payroll bureaux. A broker reviews how your policy treats penalty-linked claims and RTI errors from automated processes. See also AI in payroll bureaux.
HMRC charges per PAYE scheme each month: £100 for 1 to 9 employees, £200 for 10 to 49, £300 for 50 to 249 and £400 for 250 or more. Exceptions include reports within three days of payday and the first late report in a tax year.
Usually not as a penalty. Many wordings exclude fines and penalties, and some cannot lawfully be insured. A client's claim for damages linked to the penalty, and related costs, may be treated differently depending on the wording and the facts.
The employer remains liable to HMRC for its PAYE reporting. If the error came from the bureau's negligence, the employer may claim against the bureau under the service contract, usually based on the duty of reasonable care and skill.
Tell us about your firm and the work you do. A broker will review how your current PI treats AI-assisted work, or arrange new cover. No fee for a quote. Or call 0117 325 0027.
Start a PI quote Request a callbackApex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority. Registered in England and Wales, company number 07014570. This page is general information about how AI is used in the profession and how insurance may respond. It is not legal, regulatory or insurance advice on your circumstances, and it does not guarantee that cover will be available or on what terms.
