Revenue audit and investigation support

Revenue gives at least 28 days' notice of an audit or risk review, and if you ask within 21 days you can have up to 60 days to prepare a qualifying disclosure, which can cut the penalty sharply. We review your position, prepare any disclosure, and deal with Revenue alongside you.

Information checked 3 October 2026 against the Revenue Code of Practice for Compliance Interventions (2022 edition).

What's included

Support from the first letter to settlement

  • Reading the Revenue letter with you and explaining what stage you are at
  • Checking the taxes and years in scope before anything is said
  • Preparing a qualifying disclosure where one is needed
  • Attending the audit meeting with you
  • Agreeing the settlement and any payment arrangement
  • Help with aspect queries and profile interviews (Level 1)
  • Tidying your records so the next returns are right

What are the levels of Revenue compliance intervention?

Revenue compliance interventions (Code of Practice, 2022)
LevelWhat it is
Level 1Revenue asks you to check something yourself: a self-review, an aspect query or a profile interview
Level 2A risk review or an audit of specific taxes and periods, with at least 28 days' notice
Level 3A Revenue investigation, used where Revenue suspects serious evasion

How much are Revenue penalties?

The penalty is a percentage of the tax underpaid. It depends on how the error happened (careless or deliberate), how serious it was, whether you made a qualifying disclosure, and whether you cooperated fully.

Revenue penalty rates (Code of Practice, sections 2.13 and 2.14)
BehaviourNo disclosure, no cooperationNo disclosure, full cooperationPrompted disclosureUnprompted disclosure
Careless, without significant consequences20%15%10%3%
Careless, with significant consequences40%30%20%5%
Deliberate (first time)100%75%50%10%

Worked example

A business underpaid €8,000 of tax through a careless error with significant consequences. With an unprompted qualifying disclosure the penalty is 5%, or €400. After an audit notice, a prompted disclosure means 20%, or €1,600. With no disclosure it is 30% (€2,400) with full cooperation, or 40% (€3,200) without. Interest is due on top in every case.

What is a qualifying disclosure?

A qualifying disclosure is a full written statement of the tax underpaid in the periods and taxes in scope, made with payment of the tax, interest and penalty. It is prompted if made after Revenue notifies an audit, and unprompted if made before Revenue makes any contact. As well as lower penalties, a qualifying disclosure keeps you off Revenue's published list of tax defaulters.

Interest still applies: 0.0274% a day on VAT and employer PAYE, and 0.0219% a day on income tax, Corporation Tax and Capital Gains Tax.

How should I prepare for a Revenue audit?

  • Do not ignore the letter. Note the audit date and the 21-day window to ask for time to prepare a disclosure.
  • Gather the records for the periods in scope. Business records must be kept for six years.
  • Check the returns under review before the meeting, not during it.
  • Decide on a disclosure early, with advice, because the penalty falls sharply when you disclose first.

FAQ

Questions we're asked

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Will my name be published by Revenue?

Not if you make a qualifying disclosure. Publication also does not apply where the tax involved is €50,000 or less, or where the penalty is 15% or less of the tax.

Source: Revenue: Code of Practice for Revenue Compliance Interventions, checked 3 October 2026.

Is a Revenue audit the same as a statutory audit?

No. A statutory audit is an independent check of a company's financial statements by a registered auditor under the Companies Act. A Revenue audit is Revenue checking whether your tax returns are correct.

How long do I have to keep records?

Six years for business records, including invoices, bank statements and the workings behind your returns.

Source: Revenue: Keeping records, checked 3 October 2026.

Can I correct a mistake before Revenue contacts me?

Yes, and it is the cheapest route. An unprompted qualifying disclosure carries the lowest penalties: 3% for a careless error without significant consequences.

Source: Revenue: Code of Practice for Revenue Compliance Interventions, checked 3 October 2026.

Next step

Had a letter from Revenue? Call us first

The sooner you get advice, the more options you have. Book a call or ring the office.

Monday to Friday, 8.30am to 5pminfo@mawhately.ie

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