Works backwards from a target net salary to the gross salary that actually delivers it after Income Tax, USC, and PRSI — useful when negotiating an offer against a specific take-home figure.
Because combined Income Tax, USC, and PRSI aren't a flat percentage — they're banded, with credits and thresholds — there's no simple formula to invert directly, so the calculator searches for the gross salary whose net take-home matches your target, converging to within a few cent.
Once you're above the standard rate band, roughly every second euro of additional gross salary is lost to combined Income Tax, USC, and PRSI, so a round net target like €4,000/month usually needs a noticeably larger gross figure than a simple percentage estimate suggests.
This mode targets employee (PAYE) take-home specifically; contractors should use the Contractor mode, which works from a day rate and factors in self-employed PRSI (Class S) rather than employee PRSI.
Figures are estimates for informational purposes only, based on the assumptions you enter, and are not tax advice. Consult a tax advisor or Revenue.ie before making financial decisions.