Revenue-compliant guidance | s.112 & s.472 TCA 1997 | Updated 2025 | Revenue.ie
Quick Answer
Revenue calculates your PAYE tax refund by comparing what you actually paid against what you should have paid for the year, after applying all credits and reliefs correctly. The starting point is your total Schedule E income (employment income taxable under s.112 TCA 1997). Revenue applies the standard rate of 20% to income up to €42,000 and 40% above that. It then deducts your tax credits: the Personal Tax Credit (€1,875 in 2025), the Employee Tax Credit (s.472 TCA 1997, €1,875 in 2025), and any additional credits or reliefs claimed. This produces your correct annual tax liability. Revenue then compares this figure against the total PAYE actually deducted by your employer(s) throughout the year. If more was deducted than the correct liability, the difference is your refund. If less was deducted, a liability arises. MyTaxRebate prepares the complete calculation for each of the four claimable years, checks Revenue’s statement of liability when issued, and submits claims directly to Revenue on your behalf.
What this guide covers
- The exact step-by-step calculation Revenue uses for a PAYE refund
- How tax rates, credits, and reliefs are applied in order
- How Revenue handles multiple employers in the calculation
- What can cause Revenue’s calculation to differ from your expectation
- How MyTaxRebate checks Revenue’s calculation and challenges errors
Key Facts for 2025
- Standard rate: 20% on income up to €42,000 for a single person.
- Higher rate: 40% on income above €42,000.
- Personal Tax Credit: €1,875 (applied directly against the tax liability, not the income).
- Employee Tax Credit (s.472 TCA 1997): €1,875 (applied directly against the tax liability).
- Medical expenses relief: 20% of qualifying out-of-pocket health costs (reduces liability).
- Working-from-home relief: €3.20 per qualifying day — this reduces taxable income at the marginal rate (20% for most workers).
- The refund = Total PAYE deducted minus Total correct annual tax liability (after all credits and reliefs).
Step-by-Step: How Revenue Calculates Your PAYE Refund
Step 1: Determine total Schedule E income for the year. Revenue identifies your total employment income from all employers for the tax year. This is sourced from employer payroll submissions filed under PAYE Modernisation (operational since 2019). Each employer’s payroll data is available to Revenue in its system. Under s.112 TCA 1997, all this income is assessable under Schedule E.
Step 2: Apply tax rates. Revenue calculates the gross income tax liability by applying the standard rate (20%) to income up to the standard rate band (€42,000 for a single person in 2025) and the higher rate (40%) to income above that. This produces the gross tax liability before credits.
Step 3: Apply tax credits. Revenue deducts each applicable tax credit from the gross tax liability. The main credits for a PAYE worker are the Personal Tax Credit (€1,875) and the Employee Tax Credit (s.472 TCA 1997, €1,875 in 2025). Combined, these reduce the liability by €3,750. Additional credits (such as SPCCC, Home Carer Credit, or Age Credit) are applied in the same step if applicable.
Step 4: Apply additional reliefs. After credits, Revenue applies any additional reliefs claimed. Medical expenses relief reduces the tax liability by 20% of qualifying out-of-pocket health costs. Rent tax credit (where applicable) reduces the liability by up to €1,000 (single) or €2,000 (couple) per year. These reliefs reduce the net tax payable below the figure produced by the credits alone.
Step 5: Compare against PAYE deducted. Revenue calculates the total PAYE deducted by all your employers throughout the year (from payroll records). It compares this against the correct net tax liability calculated in Step 4. If PAYE deducted exceeds the correct liability, the difference is the refund. If PAYE deducted is less than the correct liability, the difference is a liability (you owe Revenue money).
Step 6: Issue statement of liability. Revenue issues a formal statement of liability confirming the calculated figures for the year. This document shows income, tax, credits, reliefs, PAYE deducted, and the resulting refund or liability. MyTaxRebate reviews the statement of liability against the submitted claim figures and raises queries with Revenue if the figures differ.
Worked Example (2025 Single Person)
Income: €38,000 (one employer, standard rate applies). Medical expenses: €1,200. WFH: 180 days.
Step 1: Total income = €38,000 (Schedule E, s.112 TCA 1997). Step 2: €38,000 × 20% = €7,600 gross tax. Step 3: €7,600 – €1,875 (Personal) – €1,875 (Employee, s.472 TCA 1997) = €3,850 after credits. Step 4: WFH deduction: 180 days × €3.20 = €576 off income, reducing tax by €576 × 20% = €115. Medical relief: €1,200 × 20% = €240. Net liability = €3,850 – €240 – €115 = €3,495. Step 5: PAYE deducted by employer during the year = €4,200 (slightly more due to emergency tax at start of year). Refund = €4,200 – €3,495 = €705.
How MyTaxRebate Checks Revenue’s Calculation
When Revenue issues a statement of liability, MyTaxRebate verifies every figure: income (against known payroll records), credits applied (against the current year’s entitlement), and reliefs included (against the submitted claim). If Revenue’s statement shows a lower refund than calculated, we identify the discrepancy and raise a query with Revenue. Discrepancies commonly arise from Revenue using slightly different income figures (if an employer’s payroll submission had an error) or from a relief being excluded due to a missing information request response. We resolve these on your behalf before any payment is released.
The Legislative Framework for Revenue’s Calculation
Revenue’s refund calculation is based on the Taxes Consolidation Act 1997. Under s.112 TCA 1997, employment income is assessed as Schedule E income. The Employee Tax Credit under s.472 TCA 1997 (€1,875 in 2025), Personal Tax Credit (€1,875), and any other applicable credits reduce the assessed liability directly. Revenue calculates the net liability as: income tax on gross income (applying the 20% and 40% rate bands) minus all applicable credits minus all additional reliefs. The difference between this calculated liability and the tax actually deducted through PAYE is the refund amount.
USC and Its Inclusion in the Calculation
Universal Social Charge (USC) is calculated separately from income tax and is also refundable where overpaid. USC applies at 0.5% on the first €12,012 of income, 2% on income from €12,013 to €25,760, and 4% on income above €25,760. Medical card holders aged under 70 are liable at a reduced rate. Where your annual income was lower than expected — due to maternity leave, part-time work, or a period of unemployment — your USC liability may also have been lower than the amount deducted through payroll. Revenue recalculates USC as part of the overall refund assessment, and any USC overpayment is included in the total refund.
What the Statement of Liability Shows
After Revenue completes its calculation, it issues a Statement of Liability for each year reviewed. The statement shows: total income (from all employers, via PMOD), income tax liability at standard and higher rates, tax credits applied, additional reliefs applied, total tax liability after credits and reliefs, tax deducted through PAYE, and the resulting overpayment (refund) or underpayment. Each line of the statement corresponds directly to one element of Revenue’s calculation. MyTaxRebate reviews the Statement of Liability for each year on your behalf to confirm it reflects your full entitlement, and flags any discrepancies to Revenue.
Revenue’s calculation applies consistently to all PAYE refund claims, whether submitted directly or through an authorised agent. MyTaxRebate reviews each Statement of Liability on your behalf to confirm it correctly reflects your submitted claim and flags any discrepancies to Revenue before the refund is processed.
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Check My Entitlement →Calculation Scenarios
High earner — emergency tax correction
Income: €65,000. Emergency tax for 10 weeks at start of year: estimated €2,800 overpaid. Year-end calculation: €42,000 at 20% (€8,400) + €23,000 at 40% (€9,200) = €17,600. Less credits €3,750 = €13,850 correct liability. PAYE deducted (including emergency tax): €16,650. Refund: €2,800. Consistent with the emergency tax estimate.
Low income — full credit surplus
Income: €9,000 (part-time). Tax at 20%: €1,800. Less combined credits €3,750. Net liability: nil (credits exceed liability by €1,950). PAYE deducted during year: €1,800 (employer applied credits but not fully catching up at year-end). Refund: €1,800. All PAYE deducted returned because liability after credits is nil.
Four-year claim — reliefs and structural overpayments
Total across four years (2022–2025): structural overpayments (emergency tax, multiple employers) = €2,200. Medical expenses across four years = €4,800 at 20% = €960 relief. WFH across four years = 720 days × €3.20 = €2,304 at 20% = €461 relief. Combined four-year refund: €2,200 + €960 + €461 = €3,621.
Revenue’s calculation is transparent — the Statement of Liability shows exactly how each element was applied. MyTaxRebate reviews each statement to confirm the calculation is correct and matches the submitted claim.
MyTaxRebate reviews each Statement of Liability after Revenue issues it, confirming the calculation is correct before the refund is processed to your bank account.
MyTaxRebate reviews each Statement of Liability after Revenue issues it, confirming the calculation is correct before the refund is processed to your bank account.
Common Errors in Revenue’s Calculation
- Incorrect income figures from employer payroll data: If an employer filed incorrect payroll data (e.g. a leaving date error or a pay figure rounding issue), Revenue’s income figure may differ. MyTaxRebate identifies these discrepancies and provides correct figures from your payslips.
- Reliefs excluded due to an outstanding information request: If Revenue issued an information request for medical expenses and the response was not received, Revenue may calculate the refund excluding that relief. MyTaxRebate ensures all information requests are responded to promptly.
- Wrong credit value applied for the year: Revenue typically applies the correct credit for each year. However, in some cases a credit change (like the Employee Tax Credit increase from €1,775 to €1,875 in 2025) may not be reflected correctly. MyTaxRebate verifies the correct credit value for each year.
When Revenue’s Calculation Produces a Liability Instead of a Refund
- Taxable benefit-in-kind not deducted through payroll: A car allowance, medical insurance, or other benefit-in-kind that was not correctly processed through PAYE creates additional taxable income that increases the liability above what was deducted.
- Incorrect credits applied during the year: If you received credits you were not entitled to (for example, a credit that was not transferred when circumstances changed), a liability may arise when Revenue corrects the position.
- Taxable social welfare payments not included: Certain social welfare payments (Jobseeker’s Benefit, Illness Benefit) are taxable. If not included in your employment calculation, Revenue may add them in the statement of liability.
Key Takeaways
- Revenue’s PAYE refund calculation: total income → apply tax rates → deduct credits → deduct reliefs → compare to PAYE deducted → refund is the difference.
- Credits (€3,750 combined in 2025) are applied against the tax liability — not against income.
- Reliefs (medical, WFH, flat-rate) reduce either taxable income or the tax liability depending on the relief type.
- Revenue’s statement of liability should always be reviewed against the submitted claim figures.
- MyTaxRebate prepares the full calculation, submits the claim, and checks Revenue’s statement of liability for accuracy.
Frequently Asked Questions
Does Revenue include USC in the PAYE refund calculation?
The PAYE refund claim is primarily concerned with income tax overpayments. USC (Universal Social Charge) is also deducted through PAYE and is similarly subject to a year-end reconciliation. If USC was overdeducted — for example, if you were charged at the 8% rate on income that should have been at a lower rate — the USC overpayment can also form part of the overall PAYE refund. MyTaxRebate reviews both income tax and USC deductions in the overall refund calculation.
Can Revenue’s statement of liability be wrong?
Yes. Revenue’s statement of liability is based on the data in its system, which may not be perfectly accurate if employer payroll submissions contained errors, if reliefs were excluded due to an unresolved information request, or if credit values were applied incorrectly. MyTaxRebate reviews every statement of liability against the original claim submission and raises formal queries with Revenue where discrepancies are identified.
What is the difference between a tax credit and a tax relief?
A tax credit (like the Employee Tax Credit of €1,875) reduces your tax liability directly — it comes off the calculated tax figure, not off your income. A tax relief (like medical expenses at 20%) either reduces your taxable income or reduces your tax liability by a percentage of the qualifying amount. The distinction affects how the refund is calculated: a €1,000 tax credit saves you €1,000 in tax; €1,000 in medical expenses saves you €200 in tax (at 20%).
Why does Revenue process each year separately in a multi-year claim?
Each tax year is a separate assessment period under Irish tax law. The income, credits, and reliefs for 2022 are assessed entirely separately from 2023, 2024, and 2025. An underpayment for one year cannot be offset against a refund for another year within the same claim (though Revenue does have discretion in some cases). Each year produces its own statement of liability and is settled independently. This is why multi-year refunds sometimes arrive as multiple separate bank transfers.
How does Revenue calculate the WFH relief?
The WFH relief of €3.20 per qualifying remote-working day is treated as a deductible expense reducing your taxable employment income. At the 20% standard rate, the tax benefit is €0.64 per WFH day (20% of €3.20). For 200 WFH days, the income reduction is €640, reducing your tax liability by €640 × 20% = €128. For higher-rate taxpayers, the relief at 40% would double this benefit, but most PAYE workers claim the relief at 20%.
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