Reviewed by: MyTaxRebate Team on 10 Mar 2026
Quick Answer
A PAYE worker whose tax refund claim is rejected or reduced by Revenue has two formal options: an internal Revenue review and, if that is unsuccessful, a formal appeal to the Tax Appeals Commission. The internal review is the first and most effective step - it resolves the majority of legitimate PAYE refund disputes within 4 to 12 weeks when targeted documentation is provided. Under s.865 TCA 1997, the right to recover overpaid tax for 2022, 2023, 2024, and 2025 remains intact throughout the review process. The average additional refund recovered through a successful appeal of an incorrectly reduced claim is approximately €400 to €900.
What This Page Covers
- ✓Why Revenue may reject or reduce a PAYE tax refund claim
- ✓How to request an internal Revenue review and what to include
- ✓When to escalate to the Tax Appeals Commission
- ✓What documentation supports an appeal most effectively
- ✓Realistic timelines for the review and TAC process
- ✓When professional representation makes a meaningful difference
Key Facts at a Glance
- ✓Right of appeal under Part 40 of the Taxes Consolidation Act 1997
- ✓Internal Revenue review: first step; typically 4 - 12 weeks; resolves most PAYE disputes
- ✓Tax Appeals Commission: independent statutory body; formal appeals typically 6 - 24 months
- ✓Open claim years under s.865 TCA 1997: 2022, 2023, 2024, and 2025
- ✓Most disputes resolved at internal review stage when documentation addresses Revenue's specific grounds
- ✓Typical additional refund recovered through a successful appeal: approximately €400 - €900
- ✓MyTaxRebate manages the full appeals process including all Revenue query responses at no additional fee
Appeals Support Matters When an Initial Position Is Incomplete
Appeal-related support matters because not every refund issue ends at the first submission. Some cases are queried, some need extra evidence, and some involve a disagreement about how the facts or relief rules apply. MyTaxRebate uses appeals support as a continuation of the original review rather than as a separate afterthought. That continuity helps because the claim history, evidence logic, and open-year context are already understood.
A good appeals page should therefore explain when a challenge is really about missing information, when it is about a disputed interpretation, and how the claim should be strengthened before the next step. MyTaxRebate frames appeals assistance around those practical distinctions so the worker understands both the risk and the route forward.
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The Revenue Appeals Process Explained
Part 40 of the Taxes Consolidation Act 1997 establishes the statutory right of every Irish taxpayer to appeal a Revenue decision. For PAYE refund claims, the most productive route is the internal Revenue review, which is conducted by a different Revenue officer from the one who made the original decision and does not require the formality or timelines of the Tax Appeals Commission process.
To request an internal review, the taxpayer (or their authorised tax agent) submits a written request to Revenue explaining the grounds for the review and attaching the documentation that directly addresses Revenue's stated reason for the rejection or reduction. Revenue is required to respond within a reasonable time, typically 4 to 12 weeks for standard PAYE matters. The four-year window under s.865 TCA 1997 is not affected by the review process.
The most common reason Revenue rejects or reduces a claim is insufficient documentation for the specific relief being claimed. For medical expenses, this means original receipts from the provider. For flat-rate expenses, it may mean confirmation of occupation. For employment-change overpayments, it may mean a P45 or payslips. Providing the missing documentation at the review stage resolves the majority of these cases.
If the internal review does not produce a satisfactory outcome, the taxpayer can appeal to the Tax Appeals Commission (TAC), established under the Finance (Tax Appeals) Act 2015. TAC appeals are formal proceedings that typically take 6 to 24 months. For standard PAYE refund disputes, the TAC process is rarely necessary; the internal review is almost always sufficient when the claim is legitimate and well-documented.
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Tax Scenarios
Medical expense claim partially reduced
Revenue reduced a claimed €1,400 in medical expenses to €600, citing insufficient documentation for the remaining €800. The taxpayer provided original receipts for two consultant visits totalling €500 and a hospital day-case charge of €300. A review submission with these documents resulted in Revenue restoring the full €1,400 claim and issuing an additional €160 refund (20% of the €800 restored amount). Resolution time: 7 weeks from submission of the review request.
Flat-rate expense rejected for incorrect trade
Revenue rejected a flat-rate expense claim for a construction worker because the rate claimed (€1,172) did not match Revenue's records for the worker's registered trade (electrician: €153 per year). A review submission clarifying the worker's specific trade and providing an employer confirmation letter resolved the query. Revenue updated the claim to €153 per year and issued the refund for four years. Total refund from flat-rate expenses: €122 (20% of €612 across four years).
Emergency tax overpayment queried
Revenue queried a claimed €2,200 overpayment from emergency tax in 2023, requesting evidence of the periods of emergency tax operation. MyTaxRebate provided payslips from the three months of emergency tax deduction and the P45 from the previous employer confirming the employment end date. Revenue processed the full €2,200 refund within 9 weeks of the query response, without any action required from the taxpayer.
Common Mistakes To Avoid
- ✗Not responding to Revenue queries within the stated deadline, causing the claim to be administratively closed. Revenue typically allows 30 days for a query response.
- ✗Submitting a general restatement of the original claim instead of directly addressing Revenue's specific stated grounds. Targeted evidence is far more effective.
- ✗Escalating to the Tax Appeals Commission without first attempting the internal Revenue review. The TAC is slower and more formal.
- ✗Failing to keep copies of all submitted documents. Revenue may request the same documentation again in subsequent queries or for other years.
- ✗Assuming that a rejection is final and that no further action is available. Every Revenue decision on a PAYE refund claim can be formally reviewed.
When This Does Not Apply
Key Takeaways
- ➤ A rejected or reduced PAYE refund claim can be appealed through an internal Revenue review first, then the Tax Appeals Commission if necessary.
- ➤ Revenue's rejection notice specifies the exact grounds; the review response must directly address those grounds with targeted documentation.
- ➤ The four-year claim window under s.865 TCA 1997 (2022 to 2025) remains open throughout the review process.
- ➤ MyTaxRebate manages the full appeals process with no additional fee for query management.
Check Your Claim
MyTaxRebate can review your position and guide the next step.
Frequently Asked Questions
Can I appeal a Revenue rejection?
Yes. Request an internal Revenue review first (typically 4 - 12 weeks). If unsuccessful, escalate to the Tax Appeals Commission. Most PAYE disputes resolve at the internal review stage.
What documents do I need?
Documents that directly address Revenue's stated grounds: medical receipts, Med 2 forms, payslips, P45, or employer trade confirmation. Targeted evidence is more effective than a general appeal.
What is the Tax Appeals Commission?
An independent body (Finance (Tax Appeals) Act 2015) for formal Revenue disputes. Used if the internal review fails. Hearings take 6 - 24 months and require professional representation for significant cases.
