Your First Job in Ireland: Everything You Need to Know About Tax

Your first Irish payslip will have deductions you have never seen before. PAYE, USC, PRSI — three separate systems taking money from your wages simultaneously. Understanding what each one is, whether the amounts are correct, and whether you are on the right tax basis from the start saves you real money.

What Your Payslip Actually Means

PAYE — Income Tax

Pay As You Earn. The main income tax in Ireland. Charged at 20% on income up to €42,000 (single person) and 40% on everything above that. Your €3,750 in annual tax credits reduces the amount you owe — so you only pay tax after those credits are used.

USC — Universal Social Charge

A separate charge on gross income. 0.5% on the first €12,012, 2% on the next €14,372, 4% on the next €19,372, and 8% above €70,044. If you earn under €13,000/year, you pay no USC. USC is separate from income tax and cannot be reduced by tax credits.

PRSI — Social Insurance

Pay Related Social Insurance. Most employees pay Class A: 4% on all earnings above €352/week. PRSI contributions entitle you to unemployment benefit, maternity benefit and eventually State Pension. You cannot get these back as a refund — they are contributions.

Tax Credits

Every PAYE worker gets at least two credits: Personal Tax Credit (€1,875) and PAYE Credit (€1,875) — totalling €3,750/year. These reduce your tax bill directly. If your employer does not have your correct tax credit certificate from Revenue, you will be on emergency tax.

Emergency Tax: The Most Expensive Mistake in Your First Month

Emergency tax applies when your employer cannot confirm your tax details with Revenue — usually because you have not yet registered your employment, or because your PPS Number is missing or not linked to your employer. Under emergency tax:

The solution is simple in principle: register your employment with Revenue through MyAccount and ensure your employer has your Tax Credit Certificate. The complication is that new arrivals often do not have a PPS Number yet, or do not know how to link their employer in the Revenue system.

Credits You Can Claim Beyond the Automatic Two

None of these are applied automatically. They must be claimed via Revenue's MyAccount — but only if you know they exist and understand how to calculate them correctly.

What Goes Wrong — And Why It Stays Wrong

Most issues in a first Irish job are not caused by fraud — they are caused by not knowing the system. Revenue does not proactively fix your tax position or tell you when you are owed money. The responsibility is yours.

Wrong tax basis from day one

If your employer is not registered with Revenue under your PPS Number, you pay emergency tax. Many workers stay on emergency tax for months before realising it.

Missing refund at year end

If you started mid-year, you may have unused tax credits from the months you were not employed. These can be reclaimed — but only if you file.

Not separating PAYE from self-employment income

If you also drive for a delivery platform or do any other work outside your main job, that income must be declared separately. Mixing income sources without proper filing is a Revenue compliance issue.

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Frequently Asked Questions

How do I know if I am on emergency tax?

Check your payslip. If you see '40% rate' or 'Week 1 basis' and you have not provided your PPS Number to your employer, you are on emergency tax. Your take-home pay will be significantly lower than it should be.

How do I come off emergency tax?

Register the employment in Revenue's MyAccount and ensure your Tax Credit Certificate is issued to your employer. Revenue then instructs your employer to apply the correct credits and rate. The process takes a few days.

Will I get back the emergency tax I already paid?

Yes — but it does not happen automatically. Once you are on the correct tax basis, you can file a year-end review through Revenue's myAccount and claim the refund. The timeline is usually weeks, not months.

I started mid-year. Am I owed a refund for the months I was not working?

Possibly. Your tax credits are allocated across the full year. If you were only employed for part of the year, the unused portion of your credits may entitle you to a refund of tax already paid.

I have a PAYE job but also do some delivery driving. What do I need to do?

Delivery income is self-employment income regardless of whether it is your main income. You must register as a sole trader with Revenue and include this income in an annual Form 11.

My employer deducted more tax than I expected. What should I check?

First, verify your tax credit certificate is correctly issued. Second, check whether you are on a cumulative or Week 1 basis. Third, confirm your employer has the correct PPS Number on file. These are the three most common causes of unexpected deductions.