Best Payroll Software for Ireland in 2026

The short answer

The best payroll software for an Irish business is one that calculates Irish income tax, USC, and PRSI natively and guides you through Revenue Online Service submissions. Mellow does this and includes it alongside a full HR platform from €5 per employee per month.

What Irish payroll software must get right

Ireland has its own payroll rules, and software built for another country tends to handle them poorly. The essentials are:

- Income tax at the 20% standard rate and 40% higher rate, using Ireland's tax credit system rather than a UK-style personal allowance.

- USC — the Universal Social Charge — applied across bands from 0.5% up to 8%.

- PRSI — Pay Related Social Insurance — at the rates for the employee's class, commonly 4% from the employee and 11.05% from the employer on Class A.

- ROS submissions — clean, guided reporting through Revenue's Online Service at ros.ie.

Why Mellow is a strong choice for Ireland

Mellow calculates Irish income tax, USC, and PRSI natively as part of its payroll engine. It produces payslips in euro and provides a step-by-step guide for submitting payroll returns through ROS.

Around that payroll, an Irish business gets the full Mellow HR platform: employee records, leave and absence, onboarding, compliance, and 11 AI agents. Pricing starts at €5 per employee per month, with payroll included from €10.

The honest detail

Mellow calculates Irish payroll and guides the ROS submission; it does not yet file directly with Revenue on your behalf. The calculation — the hard, error-prone part — is done for you, and you keep control of your Revenue credentials for the filing itself.

For an Irish business that wants payroll done properly inside a full HR platform, at a transparent price, Mellow is a strong 2026 choice. See Mellow pricing or read the full guide to HR software for Irish businesses.