How do I calculate my PAYE tax refund in Ireland?

To estimate your PAYE refund, add up all qualifying reliefs and credits for each open year: health expenses at 20% of qualifying out-of-pocket costs; the rent tax credit (€1,000/year single, €2,000/year couple, from 2022); working from home relief (€3.20 per qualifying day or 30% of verified utility costs); flat-rate expenses for qualifying occupations; and any emergency tax overpayment. Then multiply any emergency tax overpayment by the proportion taxed at 40% instead of 20%. The Employee Tax Credit (€1,875, s.472 TCA 1997) and Personal Tax Credit (€1,875) are applied automatically in the Revenue review but only generate a refund if they were not correctly applied in the year.

How much refund can I estimate for health expenses in Ireland?

Multiply your total qualifying out-of-pocket health expenses for the year by 20%. For example: €1,200 in GP fees, prescriptions, and consultant costs generates €240 in tax refund at 20%. Over four open years with the same annual costs: €240 x 4 = €960. Include only the amount paid personally after health insurance reimbursement. Qualifying costs include GP fees, prescriptions, specialist consultations, qualifying dental treatment, and GP-prescribed physiotherapy.

How much is the rent tax credit worth as a refund in Ireland?

The rent tax credit under s.473A TCA 1997 is a direct credit (not a relief), so the full value is the refund: €1,000 per year for a single person renting privately, or €2,000 for a qualifying couple. For four unclaimed open years (2022–2025), a single person recovers €4,000 and a couple recovers €8,000 in direct credit. This is typically the largest item in a multi-year PAYE refund for eligible renters.

How do I calculate WFH relief for my PAYE refund?

Using the flat-rate method: multiply your qualifying remote working days by €3.20. Then multiply the result by your income tax rate (20% for standard rate, 40% for higher rate). Example: 180 remote days x €3.20 = €576 in deductible expenses. At 20% rate: €576 x 0.20 = €115.20 refund for the year. Over four open years with the same days: €115.20 x 4 = €460.80. If your employer paid a WFH allowance, deduct it from the €3.20/day before calculating the shortfall.

How much can I estimate for emergency tax recovery?

Emergency tax applies at 40% on all income with no credits. The correct tax rate for most workers is 20% (or a blended rate for higher earners). The overpayment from emergency tax is approximately: (weeks on emergency tax x weekly income x 40%) minus (weeks x weekly income x correct rate x 20%) minus (credits for those weeks). For a worker earning €800/week taxed at emergency rate for 6 weeks: emergency tax deducted = €800 x 6 x 0.40 = €1,920. Correct tax at 20% less weekly credits: approximately €0–€200. Estimated overpayment: €1,700–€1,920.

How accurate is a self-calculated PAYE refund estimate?

A self-calculated estimate gives a reasonable approximation but may not perfectly match Revenue's calculation, which factors in exact income figures, USC deductions, and precise credit allocations across all pay periods. The Revenue myAccount review produces the exact and legally binding amount. A self-estimate is useful for understanding the likely range of your refund before engaging a tax agent or submitting the review yourself.

Does the Employee Tax Credit generate a refund in the calculator?

The Employee Tax Credit (€1,875, s.472 TCA 1997) reduces your tax liability each year and is applied automatically through payroll where the credit certificate is correctly set up. It only generates a separate refund in the annual review if it was not applied correctly during the year — for example, during weeks on emergency tax, or if the credit was missing from the employer's certificate. In that scenario, the full €1,875 (or the portion not applied) appears as an additional refund item in the Revenue calculation.

PAYE Refund Calculator Ireland 2025: Check What You Owe

Revenue-compliant guidance | s.112 & s.472 TCA 1997 | Updated 2025 | Revenue.ie

Quick Answer

To estimate your PAYE refund, add together the key relief components for each open year (2022–2025): health expenses at 20% of qualifying costs; the rent tax credit (€1,000/year single, €2,000/year couple, under s.473A TCA 1997); WFH relief (€3.20/day x tax rate); flat-rate expenses if applicable; and any emergency tax overpayment. The Employee Tax Credit (€1,875 under s.472 TCA 1997) and Personal Tax Credit (€1,875) are applied automatically in Revenue’s calculation and generate a refund where they were not correctly applied. The exact refund is confirmed by Revenue after submitting a Review your Tax through myAccount. MyTaxRebate calculates your exact entitlement across all four years at no upfront cost.

What this guide covers

How to estimate your health expense refund (20% of qualifying costs)
How to estimate your rent tax credit refund (€1,000/year fixed)
How to calculate WFH relief (€3.20/day x tax rate)
How to estimate emergency tax recovery
Flat-rate expense estimation for qualifying occupations
Worked examples: low, mid, and high refund scenarios
Why Revenue's exact calculation is the authoritative figure

Key Calculation Inputs

Health expenses: total qualifying out-of-pocket cost x 20%.
Rent tax credit: €1,000/year (single) or €2,000/year (couple) — direct credit, not a percentage.
WFH relief (flat-rate): qualifying days x €3.20 x tax rate (20% or 40%).
Emergency tax: weeks x weekly income x (40% — correct rate) approximately.
Flat-rate expenses: Revenue schedule amount for your occupation x tax rate.
Employee Tax Credit: €1,875/year (s.472 TCA 1997) — generates refund if not applied in any year.

Health Expense Refund: The 20% Calculation

Health expense relief under s.469 TCA 1997 is the most widely applicable item in a PAYE refund estimate. The formula is: qualifying out-of-pocket costs x 20% = refund. The qualifying amount is the sum of all eligible medical costs paid personally (after any health insurance reimbursement), including GP visit fees (typically €55–€75 per visit), prescription charges (€1.50–€5 per item), private consultant fees (€150–€400 per appointment), and non-routine dental procedures (crown, root canal, orthodontics). If you and your dependants incur €1,500 per year in qualifying costs, the annual refund estimate from health expenses is €1,500 x 0.20 = €300. Over four open years at the same level: €1,200.

Rent Tax Credit: Fixed Annual Value

The rent tax credit under s.473A TCA 1997 is a direct credit — the formula is simply: €1,000 per year (single) or €2,000 per year (couple) x number of unclaimed open years. For a single person who has not claimed for 2022, 2023, 2024, and 2025: €1,000 x 4 = €4,000. For a qualifying couple: €2,000 x 4 = €8,000. Unlike a tax relief, which generates a percentage of costs, the rent tax credit is a fixed, direct offset against tax liability — it is refunded in full where the liability is less than the credit value.

WFH Relief: Per-Day Calculation

For the flat-rate method: qualifying remote days x €3.20 x tax rate. A standard-rate (20%) worker with 200 remote days: 200 x €3.20 = €640 x 0.20 = €128/year. Over four years: €512 from WFH alone. A higher-rate (40%) worker with 200 remote days: 200 x €3.20 = €640 x 0.40 = €256/year. The key inputs are (a) number of qualifying days per year and (b) your marginal tax rate. Deduct any WFH allowance your employer paid (€3.20/day tax-free threshold) before calculating the shortfall.

Emergency Tax Recovery Estimate

Emergency tax is the 40% rate applied with no credits when a new employer has no credit certificate. The overpayment estimate formula is: (number of emergency tax weeks x weekly gross income x 40%) — (same weeks x correct estimated PAYE at 20% with weekly credit share). For a worker earning €750/week gross taxed on emergency basis for 8 weeks: Emergency tax = €750 x 8 x 0.40 = €2,400. Estimated correct tax for those 8 weeks with credits applied: approximately €0–€200 (credits absorb most of the tax on €6,000). Approximate overpayment: €2,200. This is an estimate only — Revenue’s year-end recalculation gives the exact refund.

Combining All Relief Items: Total Refund Estimate

To estimate the total refund for a given year, sum all applicable items: health expense refund (20% x qualifying costs) + rent tax credit (€1,000 or €2,000) + WFH relief (days x €3.20 x rate) + flat-rate expense refund (schedule amount x rate) + any emergency tax recovery estimate. Apply this to each of the four open years (2022–2025) separately, since the amounts may vary by year. The Employee Tax Credit (€1,875, s.472 TCA 1997) and Personal Tax Credit (€1,875) also appear in Revenue’s calculation where they were not correctly applied in any given year. The precise figure is confirmed by Revenue’s Statement of Liability after the review is submitted.

How a PAYE Refund Estimate Is Calculated

A PAYE refund estimate starts with the total PAYE deducted from your payslips for the year. The calculator then applies the credits and reliefs you are entitled to — the Personal Tax Credit (€1,875), the Employee Tax Credit (€1,875 under s.472 TCA 1997), any applicable health expenses at 20%, the rent tax credit (€1,000/year), WFH relief (€3.20/qualifying day), and any flat-rate occupational expense — to determine the correct income tax liability for the year. The estimated refund is the difference between the PAYE deducted and the correct liability. Where the correct liability is lower than the amount deducted, the difference is the estimated refund.

The accuracy of any estimate depends entirely on the information entered. If emergency tax was applied at 40% for several weeks of the year, and the estimate does not account for this (treating all deductions as normal-rate PAYE), the estimate may understate the refund significantly. Workers who are unsure whether they were on emergency tax at any point should check their payslips — a sudden spike in the income tax column to approximately 40% of gross pay for one or more weeks is a clear indicator of emergency tax under s.112 TCA 1997.

Four-Year Refund Estimate vs Single-Year

A single-year PAYE refund estimate covers only one tax year. A four-year estimate covers all open years simultaneously — 2022, 2023, 2024, and 2025 in 2025 — and represents the total amount recoverable through a complete myAccount review for all years. For most PAYE workers who have unclaimed reliefs across multiple years, the four-year total is four to eight times the single-year figure. The four-year estimate is the correct benchmark for planning a comprehensive claim, because all four years must be reviewed individually and the combined refund from all years is the true recovery figure.

Workers with consistent annual reliefs — regular health expenses, annual rent, frequent WFH days — have four-year estimates that compound strongly. A worker with €800 in health expenses per year, 150 WFH days per year, and the rent tax credit has approximately €256 per year in relief from these three sources (€160 health + €96 WFH), plus €1,000 per year in rent credit — for a four-year total of €4,024 from these three reliefs alone, before adding any emergency tax recovery or flat-rate deductions. MyTaxRebate calculates the full four-year estimate for every applicable relief category and submits the claim at no upfront cost.

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Worked Examples

Low refund estimate — €480

Health expenses €600/year x 20% x 4 years = €480. No rent credit (owns home). No WFH (office-based). No emergency tax. Flat-rate: €0 (occupation not listed). Estimated total: €480 for four years.

Mid refund estimate — €3,280

Renter (single, private market) x 4 years: €4,000 rent credit. Health expenses €800/year x 20% x 4 = €640. WFH: 100 days/year x €3.20 x 20% x 4 years = €256. Less: rent credit total €4,000 — wait, combined estimate: €4,000 + €640 + €256 = €4,896. Note: actual figure depends on whether tax liability covers full credit value.

High refund estimate with emergency tax — €7,000+

Emergency tax (2023, 8 weeks, €750/week): estimated €2,200 recovery. Rent credit 4 years single: €4,000. Health expenses €1,000/year x 20% x 4 = €800. WFH 150 days/year x €3.20 x 20% x 4 = €384. Combined estimate: €7,384 — confirmed by Revenue review.

Higher-rate taxpayer — emergency tax amplified

A worker on 40% rate placed on emergency tax: emergency rate at 40%, correct higher-rate at 40% on the higher portion but 20% on lower portion. WFH relief at 40% rate doubles vs standard rate: 200 days x €3.20 x 40% = €256/year. Calculation is more complex — Revenue’s exact Statement is the definitive figure.

Common Calculation Mistakes to Avoid

Including health insurance premiums in the 20% health expenses calculation — premiums are separately relieved at source under s.470 TCA 1997 and should not be included in the s.469 qualifying total.
Treating the rent tax credit as a percentage of rent paid — it is a fixed-value direct credit (€1,000/year), not a percentage of actual rent.
Not deducting the employer’s WFH allowance before calculating the WFH shortfall — only the amount in excess of what the employer paid can be claimed.
Applying the 20% rate to emergency tax recovery — emergency tax overpayment does not generate 20% relief; it is directly refunded as the difference between the emergency rate (40%) and the correct rate applicable for those weeks.

When Your Estimated Refund May Be Zero

No qualifying reliefs: A worker with no health expenses, not renting privately, no WFH days, no qualifying occupation for flat-rate expenses, and no emergency tax will have no major relief items to claim. A review may confirm a nil refund or a very small amount from other entitlements.

All items already claimed: Workers who claimed all entitlements in each open year through myAccount during those years have no additional refund. The review simply confirms the existing position.

Income below tax threshold: Where income was below the effective tax-free threshold in any year, no income tax was paid and therefore no refund is due for that year, regardless of how many reliefs are entered into the review.

MyTaxRebate handles your full PAYE refund claim — you only pay if we recover money for you.

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Key Takeaways

Health expenses: qualifying costs x 20% per year.
Rent tax credit: €1,000/year single (€2,000/year couple) — direct credit, not a percentage.
WFH relief: qualifying days x €3.20 x tax rate (20% or 40%).
The Employee Tax Credit (€1,875, s.472 TCA 1997) generates a refund in any year it was not correctly applied.
MyTaxRebate calculates the precise figure across all four open years and submits to Revenue at no upfront cost.

Frequently Asked Questions

How do I calculate my PAYE tax refund?

Add: health expenses x 20% + rent tax credit (€1,000/year single) + WFH days x €3.20 x tax rate + flat-rate expenses x tax rate + any emergency tax overpayment estimate. Apply for each of the four open years (2022–2025).

How much is the health expense refund per euro spent?

20 cent per euro of qualifying out-of-pocket cost. €1,000 in qualifying costs generates €200 in refund. Four years at €1,000/year: €800 total refund from health expenses alone.

Is the rent tax credit a percentage of rent or a fixed amount?

A fixed direct credit: €1,000/year for a single person, €2,000/year for a qualifying couple. It is not a percentage of rent paid — the full fixed amount is credited regardless of the actual rent level (subject to minimum rent thresholds).

How accurate is a self-calculated refund estimate?

A reasonable approximation, but the exact figure is only confirmed by Revenue’s Statement of Liability after the myAccount review is submitted. The actual figure may differ slightly due to USC calculations, precise credit apportionment, and employer income reporting.

Does the Employee Tax Credit generate a refund?

Only if it was not correctly applied during the year (emergency tax, missing from credit certificate). Where correctly applied through payroll, it reduced ongoing deductions rather than appearing as a separate refund.

Can MyTaxRebate calculate my exact refund?

Yes. MyTaxRebate reviews your full PAYE history across all four open years, calculates every applicable entitlement, and submits the reviews to Revenue. The Statement of Liability from Revenue then confirms the exact refund for each year.