USC vs PRSI
USC and PRSI both appear on Irish payslips, but they are not the same thing. USC is a tax on income. PRSI is social insurance.
The difference at a glance
| Question | USC | PRSI |
|---|---|---|
| Full name | Universal Social Charge | Pay Related Social Insurance |
| What is it? | A tax on income. | A social insurance contribution. |
| Who manages it? | Revenue. | Department of Social Protection; usually deducted through payroll for employees. |
| What does it affect? | Your tax deductions. | Your social insurance record and possible benefit entitlements. |
| Can tax credits reduce it? | No. | No. |
What USC is for
USC is a charge on income. Revenue says USC is payable on employees' income, including notional pay, with some types of income exempt.
USC has its own rates and thresholds, separate from PAYE income tax.
Source: Revenue — USC rates and thresholds
What PRSI is for
PRSI contributions go to the Social Insurance Fund. The Department of Social Protection says this fund helps pay for social welfare benefits and pensions.
Your PRSI class and contribution record can affect whether you qualify for certain benefits, such as State Pension Contributory, Illness Benefit or Jobseeker's Benefit.
Source: Department of Social Protection — PRSI overview
Why they are easy to confuse
USC and PRSI both come out of your wages and both reduce take-home pay. On a payslip they may sit close together, which makes them look like one thing. They are separate deductions with different rules.
Where to learn more
For a full breakdown of each deduction, see What is USC? and What is PRSI?.