What is emergency tax?

Emergency tax is a temporary tax situation where your employer must deduct higher tax because they do not yet have the correct Revenue instructions for your employment.

This often happens when:

  • You start a new job
  • You return to work after unemployment
  • Your employer has not yet received your Revenue Payroll Notification (RPN)
  • Your PPS number was entered incorrectly
  • Your employment was not registered properly with Revenue
Your employer usually does not choose to put you on emergency tax. It normally happens because Revenue has not yet linked your job correctly to your PPS number and tax details.

Why are the deductions so high?

When Revenue has not yet confirmed your tax credits and tax band, your employer must temporarily apply emergency tax rules.

This can result in:

  • Higher PAYE deductions
  • Reduced or missing tax credits
  • Lower take-home pay

Emergency tax usually appears as unusually high PAYE deductions on your payslip.

How to fix emergency tax

In most cases, emergency tax can be fixed online through Revenue myAccount.

The usual official process is:

  • Log into Revenue myAccount
  • Add or confirm your employment details
  • Check that your PPS number is correct
  • Assign your tax credits to the correct employer
Once Revenue updates your record, your employer normally receives updated payroll instructions automatically.

Will you get the money back?

Usually yes.

Once your tax details are corrected, any overpaid PAYE is often refunded automatically through payroll.

In some cases, the refund may appear:

  • In your next payslip
  • Across several payslips
  • Through a Revenue refund later in the year

Simple example

Situation Result
New employee starts work Employer has no Revenue payroll details yet
Emergency tax applied Higher PAYE deducted temporarily
Revenue details updated Tax corrected and refund issued

What is the difference between PAYE, USC, and PRSI?

PAYE, USC, and PRSI are all deductions that may appear on your Irish payslip, but they each serve different purposes.

Deduction What it is What the money is used for
PAYE Income tax General government spending and public services
USC Universal Social Charge Additional state funding for public finances and services
PRSI Social insurance contribution Benefits such as the State Pension, Jobseeker’s Benefit, and Illness Benefit

What this means in real life

In real life, emergency tax often appears when payroll does not yet have the Revenue instructions needed to apply the normal tax credits and rate band. The employee may see much higher PAYE deductions on an early payslip, even though gross pay is correct. USC can also be calculated on an emergency basis. This does not usually mean the higher deduction is the employee's final tax bill for the year. Once the employment is registered and Revenue issues updated payroll information, later payroll runs can apply the correct basis and may refund overpaid PAYE through wages, depending on timing and tax status. The payslip guide explains where these figures appear, while the Tax Credit Certificate guide describes the Revenue details behind payroll.

Common confusion

Usually yes. Most emergency tax overpayments are refunded once your Revenue details are corrected.
Usually until Revenue updates your employment and tax credit details. In many cases this happens within days.
Emergency tax mainly affects PAYE income tax. USC and PRSI are normally still calculated separately.