Reviewed by: MyTaxRebate Team on 10 Mar 2026 | Authority: s.472 TCA 1997
Quick Answer
Revenue publishes aggregate PAYE data showing that hundreds of thousands of Irish workers overpay tax each year and that a substantial proportion never claim it back. The average PAYE refund processed through MyTaxRebate is approximately €1,080 per person, though the figure varies significantly depending on income level, the number of years claimed, and the reliefs included. Emergency tax from job changes and unused credits from maternity or parental leave are the most common structural causes. Medical expenses, WFH relief, and flat-rate employment expenses are the most commonly missed reliefs. Across four claimable years (2022 - 2025), workers who have experienced any of these situations typically have a combined refund entitlement of €800 - €2,500. Under Revenue's rules (s.112 TCA 1997 and s.472 TCA 1997), every PAYE worker has the right to a year-end review of their tax position. MyTaxRebate conducts this review and submits the consolidated claim on your behalf.
What This Page Covers
- ✓Average PAYE refund amounts and what drives the variation
- ✓The most common causes of PAYE overpayment in Ireland
- ✓What share of PAYE workers are likely to have an overpayment
- ✓Trends in PAYE refund claims from 2022 to 2025
- ✓How the four-year backdating window affects claim statistics
Key Facts at a Glance
- ✓Average PAYE refund through MyTaxRebate: approximately €1,080 per person (single-year claims); multi-year claims typically recover €1,500 - €3,000.
- ✓Emergency tax is the most frequently reported structural cause - arising in the majority of job changes, particularly where PPS registration is delayed.
- ✓You can claim PAYE refunds for up to four tax years in arrears - for 2025, claims can go back to the 2022 tax year.
- ✓Medical expenses relief (s.469 TCA 1997) is the most commonly missed relief - available to any PAYE worker with qualifying out-of-pocket health costs.
- ✓WFH relief at €3.20 per qualifying day is available from 2020 onwards - still claimable for 2022, 2023, 2024, and 2025 within the current window.
- ✓Revenue processes most straightforward PAYE refund claims within two to four weeks of submission.
- ✓Backdate up to four tax years - in 2025, PAYE refunds are claimable for 2022, 2023, 2024, and 2025.
How Many PAYE Workers in Ireland Are Owed a Refund?
Revenue's published PAYE data consistently shows that a significant proportion of Irish PAYE workers have an overpayment in any given tax year. Estimates suggest that between 30% and 40% of PAYE workers have some level of overpayment in a given year, though the range is wide because many overpayments are small (€50 - €200) and many workers do not claim them. The workers most likely to have a meaningful overpayment are those who changed jobs during the year, took time away from work (maternity, parental, illness), worked part-time for part of the year, or had qualifying medical or WFH expenses that were never claimed.
The four-year backdating window multiplies the relevant population substantially. A worker who changed jobs in 2022, had a qualifying medical expense in 2023, and was on maternity leave in 2024 may not have claimed any of these - but all three are claimable in a single 2025 submission. The combination of structural overpayments and unclaimed reliefs across four years means the average multi-year claim through MyTaxRebate is significantly higher than a single-year claim.
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Trends in PAYE Refund Claims 2022 - 2025
The introduction of PAYE Modernisation in 2019 created real-time payroll reporting, which has reduced some types of overpayment (particularly rate band errors identified mid-year) but has not eliminated emergency tax - which still arises routinely on new job starts. The volume of PAYE refund claims increased significantly during the 2022 - 2024 period, partly driven by WFH relief claims from pandemic-era working patterns and partly by increased public awareness of backdating entitlements.
The 2022 tax year is notable because it was the first year the four-year backdating window fully incorporated post-pandemic patterns (WFH relief, pandemic unemployment payment tax interactions). Workers who were on PUP in 2021 and early 2022 and returned to employment often experienced rate band or credit allocation issues that generated PAYE overpayments for 2022. These are still claimable until 31 December 2026.
The Four-Year Backdating Window and Its Impact on Claims
Revenue's four-year backdating rule (which allows claims for the current year plus the three preceding years) means that in 2025, workers can recover overpayments from 2022, 2023, 2024, and 2025. This rule is reflected in the structure of PAYE refund statistics: the average multi-year claim is substantially higher than a single-year claim because it aggregates overpayments and reliefs across multiple years.
The 2022 year window closes permanently on 31 December 2026. Once closed, Revenue will not accept claims for 2022 overpayments regardless of the amount owed. This creates a clear time incentive for workers who have not reviewed their 2022 PAYE position to do so before the deadline. MyTaxRebate reviews all four years simultaneously and submits the consolidated claim as a single Revenue submission, ensuring no year is left outside the window.
The €1,875 Employee Tax Credit and Its Role in Refund Statistics
The Employee Tax Credit (s.472 TCA 1997, €1,875 in 2025) is the cornerstone of every PAYE refund calculation. Combined with the Personal Tax Credit (€1,875), every PAYE worker is entitled to €3,750 in annual credits. These credits reduce the correct annual tax liability - and any portion unused due to emergency tax, reduced income, or periods without employment translates directly into a refund entitlement. The statistics on average refund amounts reflect this: workers with a full year's income and no reduced-income periods have fewer unused credits, while workers who changed jobs, took leave, or had gaps in employment typically have a larger share of unused credits and correspondingly higher refund amounts.
Revenue's data shows that the €1,875 Employee Tax Credit accounts for the largest share of refund value in claims involving emergency tax or periods of reduced income. A worker who was on emergency tax for 12 weeks and earning €35,000 has approximately €937 of their annual credit (€1,875 pro-rated for 24 weeks) inaccessible during the emergency period - this, combined with the rate differential, generates the substantial emergency-tax refund amounts shown in the average statistics.
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Tax Scenarios
Multiple job changes across four years
An IT contractor moved through three PAYE roles between 2022 and 2025, with emergency tax periods at the start of each new role. His combined emergency-tax overpayment across all four years totalled €2,100. With medical expenses and WFH relief included, his full entitlement was €2,780. Revenue processed the consolidated four-year claim in 18 days.
Maternity leave combined with medical expenses
A teacher took maternity leave in 2023. The unused credit period generated a €1,320 overpayment for 2023. Combined with four years of GP, dental, and physiotherapy expenses (€2,800 total, 20% relief = €560), and two years of WFH relief (€128), her total claim was €2,008 - a figure she had not expected given she "thought there were no overpayments because there was no emergency tax."
First-time claimant: reliefs only, no structural overpayment
A healthcare worker who had never changed jobs and never been on emergency tax submitted a four-year claim for the first time in 2025. His review identified €3,200 in medical expenses across four years (20% relief = €640), €192 in WFH relief (2022 - 2023), and €320 in flat-rate employment expenses (nursing allowance). Total refund: €1,152 - entirely from reliefs he had never claimed.
Common Mistakes To Avoid
- ✗Waiting until an obvious overpayment occurs before claiming: Workers with no emergency tax history frequently have refund entitlements from medical expenses, WFH relief, and flat-rate expenses that they never claim. A four-year review identifies these even without structural overpayments.
- ✗Assuming the 2022 deadline is distant: The 2022 tax year closes permanently on 31 December 2026. Workers who have not reviewed their 2022 position should do so well before that date to avoid losing the entitlement permanently.
- ✗Claiming only one year at a time: Sequential single-year claims are less efficient than a consolidated four-year submission. Revenue processes all years together and issues a single refund. There is no benefit to submitting year by year.
- ✗Omitting medical expenses because amounts are small per year: Medical expenses accumulate across four years. €400 per year produces €1,600 in qualifying expenses, generating €320 in relief across the window.
When This Does Not Apply
Key Takeaways
- ➤ Between 30% and 40% of PAYE workers in Ireland have some level of overpayment in any given tax year - many never claim it.
- ➤ The average PAYE refund through MyTaxRebate is approximately €1,080 per year; multi-year claims typically return €1,500 - €3,000.
- ➤ Emergency tax and unused maternity/parental credits are the most common structural sources; medical expenses and WFH relief are the most frequently missed.
- ➤ The 2022 tax year closes on 31 December 2026 - acting before then preserves the maximum four-year recovery.
- ➤ MyTaxRebate reviews all four years together and submits a consolidated claim, recovering the full entitlement in a single Revenue submission.
Check Your Claim
MyTaxRebate can review your position and guide the next step.
Frequently Asked Questions
What is the average PAYE tax refund in Ireland?
Based on claims processed through MyTaxRebate, the average single-year PAYE refund is approximately €1,080. Multi-year claims (covering two to four years simultaneously) typically return €1,500 - €3,000, depending on the number and size of overpayments and reliefs included. The average is influenced by a wide distribution: some claims are above €3,000 (multiple job changes plus comprehensive relief claims) and some are under €300 (single-year medical expense relief only).
What percentage of PAYE workers in Ireland are owed a refund?
Revenue data and industry estimates suggest between 30% and 40% of PAYE workers have some level of overpayment in a given tax year. The proportion with an overpayment across the full four-year window is higher, because some workers who had no overpayment in 2025 may have had one in 2022, 2023, or 2024. Medical expense reliefs alone apply to a very large proportion of the PAYE workforce.
What is the most common cause of PAYE overpayment in Ireland?
Emergency tax from a job change is the most common structural cause by value. It arises when a new employer does not receive a tax credit certificate before the first pay date, resulting in flat 40% deductions regardless of actual income. By volume (number of workers affected), unclaimed medical expense relief is more common - a larger share of the PAYE workforce has qualifying medical costs than has experienced emergency tax.
How long does it take Revenue to process a PAYE refund claim?
Revenue processes most straightforward PAYE refund claims within two to four weeks of submission. Claims that include medical expenses may take slightly longer if Revenue requests supporting documentation. MyTaxRebate monitors all claim stages and provides updates throughout. Revenue pays the refund directly to the bank account registered on the claimant's Revenue record.
Is the 2022 PAYE tax year still claimable in 2025?
Yes. Revenue's four-year backdating rule allows claims for 2022, 2023, 2024, and 2025 from any submission made in 2025. The 2022 tax year closes permanently on 31 December 2026 - after that date, Revenue will not accept new claims for 2022 overpayments. Workers who have not reviewed their 2022 PAYE position should do so before this deadline.
