Decision review
We identify the decision being challenged, the statutory appeal route and the deadline stated by HMRC.
An HMRC assessment or penalty is not necessarily the end of a tax dispute. Where the legislation gives a right of appeal, the taxpayer can challenge the decision on factual, technical or penalty grounds, but the appeal must normally be made within a defined statutory timetable.
We start with the decision being challenged, not with a generic complaint about HMRC. The appeal needs to identify the legal or factual basis on which the assessment, amendment, closure notice, penalty or other appealable decision is said to be wrong.
Include the date of the decision or penalty notice and any appeal or review deadline shown on the letter.
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Appeal deadlines are often 30 days. If the stated deadline is approaching or has already passed, include the exact date in your enquiry.
The first questions are whether the HMRC decision is appealable, when it was issued, what deadline applies and what factual or legal grounds support the challenge.
An appeal is stronger when it explains precisely why HMRC's conclusion is wrong and connects that argument to the records and legislation. Simply saying that the tax or penalty feels unfair does not address the underlying decision.
The engagement can begin immediately after an HMRC decision or later where an appeal, statutory review or tribunal process is already underway.
We identify the decision being challenged, the statutory appeal route and the deadline stated by HMRC.
Factual, technical and computational grounds are separated so that the appeal addresses the reasons HMRC reached its decision.
The underlying tax, taxpayer behaviour, reasonable excuse and penalty calculation can each require separate analysis.
HMRC's review process can provide an independent reconsideration by an officer who was not involved in the original decision.
Where the deadline has passed, the chronology and reason for delay are reviewed before asking HMRC or the tribunal to admit the appeal late.
Where a dispute cannot be resolved with HMRC, the evidence, chronology and issues can be organised for the First-tier Tribunal process.
The appeal is managed in stages so that deadlines are protected while the technical and evidential case is developed.
We identify the decision date, statutory route and immediate deadline before undertaking the wider technical review.
The tax calculation, legislation, facts and HMRC reasoning are compared to establish the points genuinely in dispute.
The case can proceed through further representations, statutory review or ADR where appropriate.
If agreement is not possible, the dispute can proceed through the appropriate First-tier Tribunal route where appeal rights permit.
A formal appeal does not automatically mean a tribunal hearing will follow. Many disputes continue through HMRC representations, statutory review or Alternative Dispute Resolution before a judge is asked to decide the case.
For many direct-tax decisions, the taxpayer first gives HMRC notice of appeal stating the decision being challenged and the grounds of appeal.
An HMRC review officer who was not involved in the original decision can reconsider the disputed matter and uphold, vary or cancel the decision.
An impartial HMRC mediator can assist the parties in identifying and resolving disputed issues where ADR is suitable, including during some tribunal proceedings.
The Tax Chamber independently hears most tax-related appeals where the statutory appeal route has been followed and the dispute has not otherwise been resolved.
Not every disagreement with HMRC carries an identical appeal route. Direct taxes, VAT and other indirect taxes can have different procedural steps. The decision letter and the legislation governing that decision should therefore be checked before choosing between an appeal, review and tribunal notification.
GOV.UK explains the general appeal and statutory-review routes for direct and indirect tax decisions and penalties.
Official HMRC appeal guidance ↗HM Courts & Tribunals Service guidance explains how eligible tax appeals are brought before the independent tribunal.
Tribunal appeal guidance ↗A technically strong appeal can still become procedurally difficult if the statutory deadline is ignored. The first practical task is therefore to identify and protect the applicable time limit.
For a late direct-tax appeal, HMRC must accept the appeal where it is satisfied that there was a reasonable excuse for missing the deadline and the taxpayer appealed without unreasonable delay once the excuse ended. If HMRC refuses, the taxpayer can ask the tribunal to admit the late appeal; the tribunal applies its own legal approach to whether permission should be given.
HMRC's Appeals, Reviews and Tribunals Guidance confirms the normal 30-day appeal period and the procedure for a late appeal.
HMRC appeal deadline guidance ↗A statutory review is carried out independently within HMRC and normally takes 45 days, with a further appeal route if the taxpayer remains dissatisfied.
Official review guidance ↗Appeal work often follows an investigation, disclosure or formal assessment. These related pages cover the underlying HMRC procedures that can lead to the disputed decision.
The exact appeal route depends on the tax, the decision being challenged and the stage the dispute has already reached.
For many direct-tax decisions, the normal deadline is 30 days from the date HMRC issued the formal decision notice. Other taxes and decisions can use different procedural routes, so the decision letter should always be checked.
Many statutory tax penalties carry appeal and review rights. The appeal can potentially challenge whether the penalty should have been imposed, its amount, or both, depending on the legislation involved.
It is a reconsideration of an appealable decision by an HMRC review officer who was not involved in making the original decision. The review can uphold, vary or cancel the decision.
The normal review period is 45 days, although HMRC and the taxpayer can agree a different period. HMRC should then issue its review conclusion in writing.
A late appeal can still be possible. For a direct-tax appeal, HMRC can accept it where the relevant conditions are met. If HMRC refuses permission, the taxpayer can ask the tribunal to allow the late appeal.
For HMRC to accept a late direct-tax appeal under the statutory rules, reasonable excuse and action without unreasonable delay after the excuse ended are important. A tribunal considering permission for a late appeal applies its own legal test to the circumstances.
ADR uses an impartial HMRC mediator to help the parties identify and potentially resolve issues in dispute. It can be available during an enquiry and, in suitable cases, after an appeal has been made and during tribunal proceedings.
No. Some disputes are resolved through further correspondence, agreement, statutory review or ADR. Where the dispute remains unresolved and a valid appeal proceeds, the First-tier Tribunal Tax Chamber can independently determine most tax appeals within its jurisdiction.