Step 1 — Apply pension relief
Pension contributions (within your age-based limit) come off your gross pay before Income Tax is calculated. They do not reduce USC or PRSI. On €50,000 with a 5% pension, that's €2,500 off the Income Tax base.
Step 2 — Income Tax
First €44,000 at 20% = €8,800. Remaining €3,500 at 40% = €1,400. Gross tax €10,200. Subtract personal + PAYE credits (€3,750 single) = €6,450 Income Tax payable.
Step 3 — USC
0.5% on the first €12,012 (€60), 2% on the next €16,688 (€333), 3% on €21,300 (€639). USC total = €1,032.
Step 4 — PRSI
4.2% of €50,000 = €2,100.
Step 5 — Net pay
€50,000 − €2,500 pension − €6,450 IT − €1,032 USC − €2,100 PRSI = €37,918 net. Divide by 12 for €3,160/month. The CentSmart Salary Calculator does this instantly and shows the band-by-band breakdown.