Key Takeaway: Revenue estimates over €600 million in overpaid tax sits unclaimed by Irish workers every year. Not because the process is complicated. Because most people never check. In 2026, you can claim back overpaid tax for 2022, 2023, 2024, and 2025. The 2022 window closes permanently on 31 December 2026. After that date, whatever you are owed for that year is gone.
Here Is the Question Nobody Asks
Every month your employer deducts tax, sends it to Revenue, and you get what is left. That feels like the end of the story. Tax handled. Move on.
But ask yourself this: when did you last actually check whether the amount being deducted is correct?
Most people never do. And Revenue is not going to remind you to check. If you overpaid in 2022, 2023, or 2024, that money is sitting there. Revenue holds it. The process to claim it back takes about fifteen minutes. The reason most people have not done it is simply that they assumed someone else was taking care of it.
Nobody is. It is yours to claim, and only you can claim it.
Who Is Actually Owed Money Back
You may have overpaid if any of these situations apply to you in the last four years.
You started a new job and were put on emergency tax. Emergency tax applies 40% to everything with zero credits from the second month onward. Almost everyone who goes through it overpays, and many never recover the difference.
You paid for GP visits, prescriptions, consultant appointments, physiotherapy, or hospital charges out of your own pocket and never submitted them. Revenue gives 20% tax relief on qualifying medical expenses but only when you actually claim them. The system does not apply them automatically.
You rent privately and never claimed the Rent Tax Credit. This credit has been available since 2022. It is worth €1,000 per year for a single person and €2,000 for a couple. Most eligible renters have never touched it.
You worked from home during any year since 2020 and your employer did not pay you a flat daily allowance. Revenue allows you to claim 30% of your electricity, heating, and broadband costs for every day you worked remotely.
You changed jobs, went on maternity leave, became unemployed for a period, or had any significant personal change that was not reported to Revenue in time.
Any one of those situations can generate a refund. Several across multiple years can add up to something meaningful. The only way to know the actual figure is to go through myAccount and look.
For a full breakdown of every credit and relief you might be missing, our article on how to claim tax credits in Ireland lists every available credit for 2026 with amounts and eligibility conditions for each.
The Step by Step Process
Step 1: Log into myAccount
Go to revenue.ie and sign into myAccount. If you have never registered, you need your PPS number, your date of birth, and a mobile phone number. Revenue sends a one-time code to verify your identity. Setup takes about five minutes and only needs to happen once. After that you just log in.
Once inside, complete the two-factor authentication prompt on your phone. This is now required for all Revenue online access.
Step 2: Find “Review your tax for the previous 4 years”
From your dashboard, go to PAYE Services. Look for the option that says “Review your tax for the previous 4 years.” Click it. The four available years will appear: 2022, 2023, 2024, and 2025. Select “Request” beside whichever year you want to start with.
Step 3: Review the pre-populated figures
Revenue will load what it already knows about you for that year. Your employment income, the tax deducted, and any credits already on file will be pre-filled. Look through these carefully.
Confirm that your income figure matches your actual payslips for that year. Check whether your credits were correct. If you were entitled to credits that are not showing, this is the step where you add them.
Step 4: Add any missing credits or reliefs
This is the step that actually generates refunds for most people. The pre-filled information only reflects what Revenue already had. Anything you were entitled to but never claimed is not there. You have to add it.
For medical expenses, go to the Health section and enter the total qualifying amount you paid that year. If you are not sure of the exact figure, your pharmacy will give you an annual statement of all prescription purchases if you contact them directly.
For the Rent Tax Credit, go to the Rent section and enter your landlord details and the rent paid. You need the rental address. The landlord’s PPS number is helpful but Revenue will process the claim without it in most cases.
For working from home relief, go to the Employment section and enter the number of days you worked remotely along with your relevant utility costs.
Work through each section methodically. Anything you miss here stays unclaimed.
Step 5: Submit and wait for your Statement of Liability
Once everything is reviewed and updated, submit the return. Revenue processes it and issues your Statement of Liability, typically within five working days for straightforward PAYE cases. This is the official calculation showing what you paid versus what you actually owed.
If it shows an overpayment, that amount is your refund. From 2026, Revenue pays all refunds directly into your own bank account. Tax agents and third party services can no longer receive refund payments on your behalf. Make sure your bank details are correct on your myAccount profile before you submit.
If it shows an underpayment, that means you paid less than you owed that year. The most common cause is taxable social welfare income like Maternity Benefit or Illness Benefit, which is not deducted at source. Revenue can collect underpayments under €6,000 by reducing your credits gradually over subsequent years rather than demanding immediate payment.
Step 6: Repeat for each year
Each year is a separate review and a separate submission. You can do all four in one session or come back separately for each. Every year generates its own Statement of Liability and its own refund if one is due.
Why 2022 Is the One to Act On Now
The four year rule under Section 865 of the Taxes Consolidation Act 1997 is absolute. You have four years from the end of a tax year to make a claim. After that, Revenue cannot process it. There is no extension, no appeal, no discretion.
In 2026, the four years you can still claim are 2022, 2023, 2024, and 2025. The 2022 window closes permanently on 31 December 2026.
Think back to 2022. Did you have any medical expenses? Were you renting? Did you work from home? Were you on emergency tax at any point? Did your personal circumstances change in a way you never told Revenue about?
If the answer to any of those is yes and you have not submitted a claim for that year, you have until the end of 2026 to do it. After that, whatever Revenue owes you for 2022 becomes unrecoverable. There is no mechanism to claim it back. The money does not go somewhere useful. It simply ceases to exist as a refund entitlement.
For 2023, 2024, and 2025 you have more time. But reviewing all four together while you are in the system is the most efficient approach. The process is largely the same for each year and doing them in one session means you cannot forget a year later.
What If Someone Else Has Been Filing on Your Behalf
Some people use tax agents or refund services to manage their annual claim. Up until 2025, many of these services operated under an arrangement called A2, which allowed Revenue to send refunds directly into the agent’s bank account. The agent kept their fee and passed the remainder on to the client.
That arrangement is gone. From 2026, Revenue pays all refunds directly to the taxpayer’s own bank account without exception. If you previously used an agent and your bank details on myAccount are outdated or belong to someone else, update them before submitting any claim.
If you want professional help reviewing your tax position, particularly if your situation involves multiple income sources, rental income alongside employment, or complex years with several changes, our income tax return service covers both simple PAYE reviews and self-assessment filings where needed.
Frequently Asked Questions About Claiming a Tax Refund in Ireland
Q1: Can I still claim a tax refund for 2022? Yes, but only until 31 December 2026. The four-year rule under Section 865 of the Taxes Consolidation Act 1997 is a hard deadline. Once a tax year passes its four-year window, Revenue cannot process a refund for it regardless of the amount overpaid. There is no appeal mechanism once that date passes. If you have unclaimed credits or reliefs from 2022, submitting through myAccount before 31 December 2026 is the only way to recover them.
Q2: How much will I actually get back? That depends entirely on your situation, which years you are reviewing, and which reliefs apply to you. Industry averages for people who have not reviewed their tax in four years sit between €1,100 and €1,880. Someone with four years of unclaimed rent credits, medical expenses, and working from home relief could recover considerably more. Someone with fully up to date credits and nothing unclaimed may find nothing is due. The only way to know your actual figure is to go through myAccount for each year.
Q3: Do I need an accountant to claim a refund? For most straightforward PAYE cases involving standard credits and reliefs, you do not. The myAccount process is accessible to any taxpayer and typically takes fifteen minutes per year for uncomplicated situations. If your tax position involves rental income alongside employment, multiple jobs in the same year, or several years with significant changes, getting professional help ensures nothing is missed and reduces the risk of an error that creates an unexpected liability. Our tax services team handles both self-managed reviews and fully assisted claims.
Q4: How long does it actually take to receive the refund? Revenue issues the Statement of Liability within approximately five working days of submission for straightforward claims. Once you accept the statement, the refund transfers to your registered bank account, usually within a few working days after that. Total time from submission to money in your account is typically one to three weeks for uncomplicated cases. Claims involving medical expenses sometimes generate an information request, which adds a few days while you confirm the totals or provide receipts.
Q5: My Statement of Liability shows I owe tax. What happens now? A showing of underpayment means your PAYE deductions throughout that year were lower than your actual liability. The most common reasons are taxable social welfare payments not deducted at source, a second employment where credits were not split correctly, or non-PAYE income that was not declared. If the underpayment is below €6,000, Revenue can recover it by reducing your credits gradually over one to four subsequent years rather than requiring immediate payment. If it is over €6,000, you arrange payment directly through myAccount. Either way, addressing it through a voluntary review is considerably better than Revenue identifying it independently and issuing a demand with interest.
