The short answer: Ireland pays more on paper, the UK is closer than you think after tax
Irish tech salaries are consistently higher than their UK equivalents in gross terms, typically by 10–20% for the same role. A Senior Software Engineer earns a median of €108,000 in Ireland versus £95,000 in the UK. At the exchange rate in mid–2026 (roughly €1 = £0.86), that is a gross advantage of around €15,000 in Ireland's favour.
The comparison looks quite different once you factor in tax. Ireland's marginal rate for higher earners combines Income Tax, USC, and PRSI into something approaching 52%. The UK tops out at 42% above £50,270. That gap erodes a significant chunk of Ireland's gross premium. At the Senior Engineer salary example above, an Irish engineer takes home roughly €67,000–€69,000; their UK counterpart on £95,000 takes home around £62,000–£63,500, which converts to approximately €72,000 at current rates. The UK can actually come out slightly ahead on net.
Run your own numbers: Ireland take-home calculator and UK take-home calculator.
Gross salary comparison: Ireland vs UK 2026
Median gross salary · ■ Ireland (€K) vs ■ UK (£K) · figures are not currency-converted
| Role | 🇮🇪 Ireland (median gross) | 🇬🇧 UK (median gross) |
|---|---|---|
| Senior Software Engineer | €108K | £95K |
| Engineering Manager | €130K | £115K |
| Data / AI Engineer | €118K | £105K |
| Cloud / Platform Engineer | €110K | £98K |
| Cybersecurity Engineer | €105K | £92K |
| Mid-level Software Engineer | €82K | £72K |
Why does Ireland pay more in gross terms?
Three structural factors drive Ireland's gross salary premium, and they are unlikely to change any time soon.
- 1
Every major US tech company has a presence in Dublin. Google, Meta, Apple, Microsoft, Amazon, LinkedIn, and Salesforce: virtually the entire Fortune 50 tech sector has engineering operations in Ireland. These companies benchmark compensation globally, not locally. When a Dublin office is competing for engineers against offices in San Francisco and New York, Irish salaries get pulled up toward US levels. That effect is most pronounced at senior and staff levels, and it lifts the whole market.
- 2
Ireland is a small country with a lot of tech demand. Ireland has a population of about 5 million. The supply of Senior and Staff engineers is inherently limited, while demand from global companies is not. That imbalance is most visible at the top of the market, where Ireland's median salary for Principal Engineers and Engineering Managers can exceed equivalent London figures even after currency conversion.
- 3
Dublin costs almost as much as London to live in. Employers know this and factor it into offers. The gross premium is partly a cost-of-living offset. The question is whether it is a sufficient offset, which is where people's views diverge.
The tax reality: where the UK catches up
Ireland has a genuinely high marginal tax rate. Once your gross income exceeds €36,800, you are paying 40% Income Tax, 8% USC, and 4% PRSI on each additional euro, giving an effective marginal rate of around 52%. The UK's equivalent above £50,270 is 42% (40% Income Tax, 2% National Insurance). That is a 10 percentage point gap, and it matters more as salaries rise.
Estimates assume standard tax credits with no additional deductions. Individual results vary. Exchange rate: €1 = £0.86 (mid-2026).
Salary is only part of the picture
If you are deciding between an Ireland and UK tech role, the gross salary and the tax number are the starting point, not the conclusion. Here is what else matters.
- Housing costs: Dublin rents are among the highest in Europe. London is similarly brutal. Neither city offers an easy path to affordability, but Dublin has a more constrained rental supply at the lower end of the market. This is a real quality-of-life factor that the gross salary premium does not fully compensate for.
- Equity and total compensation: The US multinationals based in Ireland almost all operate global RSU and options programmes. A Senior Engineer or Engineering Manager at one of these companies will often receive €20,000–€50,000+ in annual equity on top of base salary. That changes the calculus dramatically. If you are comparing a base salary at an Irish hyperscaler against a UK startup, you are not comparing the same thing.
- Career trajectory: London has a deeper ecosystem for early-stage startup work and a wider range of industries. Dublin's market is heavily concentrated around a small number of very large employers, which provides stability and excellent compensation but fewer paths to founding-team equity or broad industry exposure. This is a real trade-off, not a knock on either market.
- Quality of life: Ireland performs well on healthcare access, social infrastructure, and working hours. London wins on cultural density, international travel connections, and sheer variety. This comes down to what you actually want from where you live.
So, should you work in Ireland or the UK?
If you are a senior engineer or engineering manager targeting one of the hyperscalers with a Dublin presence, Ireland is the better financial choice on a gross basis, and when you factor in equity, often on a total-comp basis too. The gross premium is real and meaningful at this level, and it holds even with the tax haircut for top-of-market roles earning €120K+.
If you are a mid-level engineer without a clear specialisation, the financial case for Ireland is much weaker. After tax, the gap nearly disappears. At that point the decision should be driven by the specific company, the role, your career goals, and frankly, where you want to live. Do not make it primarily about the salary number.
For either market, the highest-paying discipline right now is AI and data engineering. If that is your background, both Ireland and the UK will pay you well, though Ireland's concentration of hyperscaler AI investment makes it the stronger market for those specific roles in 2026.