🇮🇪 Ireland vs 🇬🇧 United Kingdom: tax compared

Ireland takes more. On the average wage a single person pays 25.1% in Ireland against 23.1% in the United Kingdom, a gap of 2.0 percentage points.

Written by Usain Olivard, who is not a qualified tax adviser. Both sides read from one published series, so the two halves of this page cannot contradict each other. Figures last read from source on 06 September 2026.

Ireland

Combined rate on the average wage: 25.1%

Gross €60,258, keeping €45,130.

Reported from the published series. This site does not compute this jurisdiction.

United Kingdom

Combined rate on the average wage: 23.1%

Gross £55,983, keeping £43,027.

Computed here band by band from the statutory schedule, and reconciled against this same series.

What each takes, at three income levels

Each row is the same person in both countries: single, no children, no income beyond a salary, earning that multiple of their own country's average wage. That is why the gross figures differ between the two columns, and it is the only way two tax systems can be compared without pretending the wage levels are the same.

Ireland against United Kingdom, single person with no children, 2025, as published by the OECD
Income level	Ireland gross	Ireland taken	United Kingdom gross	United Kingdom taken	Difference
67% of the average wage	€40,373	16.1%	£37,508	18.6%	2.5pp United Kingdom
the average wage	€60,258	25.1%	£55,983	23.1%	2.0pp Ireland
167% of the average wage	€100,630	35.4%	£93,491	30.7%	4.7pp Ireland

The same figures in one currency

Converted at the European Central Bank reference rate published on 2026-09-04. On the average wage a single person keeps €45,130 in Ireland and €50,091 in the United Kingdom, a difference of €4,961 a year in favour of the United Kingdom.

That number is worth less than it looks and the reason matters. It compares two different salaries in two different economies, because each side is that country's own average wage. It is not the same salary taxed twice, and it says nothing about what either amount buys where it is earned. A comparison of the same gross in both countries is the one people usually want, and no published series answers it, so this site does not print one.

What the employer pays on top

Neither figure above includes employer social security, which never reaches a payslip and is excluded from every take-home number on this site. It is published, and it changes what employing somebody actually costs: 11.2% of gross in Ireland against 13.7% in the United Kingdom. The two are close enough that the employer side does not change the ranking either way.

The rate on the next unit earned

Average rates decide what a year costs. Marginal rates decide whether a rise is worth taking, and the two do not always rank the same way. On the average wage the marginal rate is 47.1% in Ireland and 42.0% in the United Kingdom. Both measures point the same way in this pair, so the ranking is not sensitive to which one you use.

What this comparison leaves out

Everything except one household at three incomes. Not your salary, not a couple, not a parent, not residence rules, treaty relief or the timing of a move, and nothing at all about what the taxes buy in either place. The full account of what this series measures and what it cannot is on how these figures are published.

One side of this pair is computed on this site and the other is not. United Kingdom can take your own salary band by band; Ireland reports published figures only, and its page says why.

Questions about Ireland and United Kingdom tax

Do you pay more tax in Ireland or the United Kingdom?

Ireland takes more. On the average wage a single person pays 25.1% in Ireland against 23.1% in the United Kingdom, a gap of 2.0 percentage points.

Which has the higher marginal tax rate, Ireland or United Kingdom?

On the average wage the net personal marginal rate is 47.1% in Ireland and 42.0% in the United Kingdom. That is what is taken from the next unit earned rather than from the whole salary, so it is the figure that decides whether a rise or a bonus is worth taking, and it is not the same ranking as the average rate in every pair.

How do the two compare in the same currency?

Converted at the European Central Bank reference rate published on 2026-09-04, someone on the Ireland average wage keeps €45,130 and someone on the United Kingdom average wage keeps €50,091. That compares two different salaries in two different economies, not the same salary taxed twice, which is the comparison people usually mean and the one no published series answers.

Where do these Ireland and United Kingdom figures come from?

Both sides come from the same source: the OECD's Taxing Wages series for 2025, which publishes what a single person with no children actually pays at 67%, 100% and 167% of each country's own average wage. 44 rules sit behind this page, each carrying the dataset row it was read from and the date it was read, which was 06 September 2026. Because both halves come from one series, they cannot disagree with each other.

Does this tell me what I would pay if I moved?

No, and no comparison page can. These figures describe one household type at three income points in each country, in that country's own currency. They do not cover your salary, your household, residence rules, treaty relief, or the year you actually move. They are the right starting point and the wrong finishing point.

44 rules behind this page, both sides from one series. Ruleset sha256:fe993d9d072cbcac. Every one is in the published data with its quote and hash.

Other Ireland comparisons

The same measure, Ireland against a different country.

Other United Kingdom comparisons

The same measure, United Kingdom against a different country.