How it's calculated
PRSI (Pay Related Social Insurance) funds social welfare benefits and the State Pension. Most employees pay Class A, and the Department of Social Protection bases the charge on weekly pay.Department of Social Protection
| Weekly pay | Subclass | Employee to 30 Sep | Employee from 1 Oct | Employer to 30 Sep | Employer from 1 Oct |
|---|---|---|---|---|---|
| €38 – €352 | A0 | Nil | Nil | 9% | 9.15% |
| €352.01 – €424 | AX | 4.2% less PRSI credit | 4.35% less PRSI credit | 9% | 9.15% |
| €424.01 – €552 | AL | 4.2% | 4.35% | 9% | 9.15% |
| Over €552 | A1 | 4.2% | 4.35% | 11.25% | 11.4% |
Each rate applies to all of the week's pay. Employer rates include the 1% National Training Fund levy.
The PRSI credit. At €352.01 a week the credit is €12; it falls by one sixth of earnings above €352.01 and reaches zero at €424.
The formula
- Weekly pay = annual pay ÷ 52 (monthly pay × 12 ÷ 52).
- Employee PRSI per week = rate × weekly pay − PRSI credit, where credit = max(0, €12 − (weekly pay − €352.01) ÷ 6), rounded to the cent.
- Employer PRSI per week = lower or higher rate × weekly pay.
- 2026 total = 39 weeks at the rates to 30 September + 13 weeks at the rates from 1 October (contribution week 1 is 1 to 7 January, so week 40 starts on 1 October).
Worked example
| Line | Employee | Employer |
|---|---|---|
| 1 January – 30 September 2026 (39 weeks) | €1,574.82 | €4,218.63 |
| 1 October – 31 December 2026 (13 weeks) | €543.79 | €1,425.06 |
| Total PRSI | €2,118.61 | €5,643.69 |
At the October rates for a full year the employee pays €2,175.16. Someone earning €377 a week (the example in SW 14) pays €7.99 a week before October thanks to the PRSI credit. SW 14 shows €8.00 because it rounds the one-sixth reduction before subtracting it; its own table rounds the credit instead, which is what this calculator does, so the result can differ by a cent.
Assumptions and limitations
- Classes A and J only. Public servants on Classes B, C, D and H and the self-employed (Class S) are not covered. Class S is 4.2% to 30 September and 4.35% from 1 October 2026, with a minimum of €650.
- Even pay. The calculator assumes the same pay every week. With irregular pay, each week's subclass and credit depend on that week's pay.
- Pay for PRSI includes the employee's own pension contributions and benefit in kind; it excludes employer pension contributions (PRSI Employer Guide 2026).Department of Social Protection
- The 365th day. The year has 52 full contribution weeks plus one day; the extra day is ignored.