Second job: understanding the effective deduction

This page explains why the take-home pay from a second job can look lower than expected. It is scenario guidance for 2026.

Open the calculator Multiple employments and credits

What is happening

Credits and bands often sit mostly on the main job.
The second job pay can be closer to the higher marginal zone.
USC and PRSI can also apply on the additional income.

How to plan

Use annual view to budget on combined income.
Use monthly view to understand sensitivity when pay is uneven.
For payslip reconciliation, confirm the exact credit allocation.

FAQ

Why does my second job feel taxed at a higher rate?

A common reason is that most credits and rate bands are applied to your main job. The second job can have less credit coverage, so more of its pay can be charged at higher marginal rates.

Is there a special “second job tax” in Ireland?

Not usually. The effect is typically credit and band allocation plus marginal deductions (PAYE, USC and PRSI) stacking on additional income.

How can I estimate take-home pay from a second job?

Model total annual income and compare scenarios. Use sensitivity by adjusting credits assumptions, and treat results as planning estimates rather than payslip reconciliation.

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