Moving To or From Ireland: The Complete Guide to Pre-Move Tax Planning

Moving to Ireland, or leaving it, changes your tax position in ways most people only discover after the fact. How much you pay turns on where you are tax resident, where you are domiciled, and the order in which you do things. Get ahead of the rules and, coming in, you can keep a great deal of foreign income and gains outside the Irish net; going out, you can time your departure and your disposals so you are not taxed here longer than you need to be. Leave it too late in either direction, and the same money can be taxed in full.

This guide explains how Irish tax treats people arriving in and departing from Ireland: residence, ordinary residence, domicile, the remittance basis, split-year relief, and the timing decisions that matter most. It is written for employees, business owners and retirees moving across borders, and it applies whether you are single or married.

It is a plain-English map of the rules, not formal advice for your own circumstances. Use it to understand what to plan for before you move.

Why timing is everything in a cross-border move

The most valuable planning can only be done before two things happen: before you become Irish tax resident, and before you move money or assets into Ireland.

Once you are resident here, and once foreign funds have landed in an Irish account, several options simply close. Assets can no longer be sold or restructured outside the Irish net, and savings that could have arrived tax-free may instead carry a charge. If you are leaving Ireland, the mirror applies: some steps only work while you are still resident, others only once you have genuinely left.

That is why pre-move planning is worth far more than a return prepared after the dust settles. The window is short, and it closes quietly.

How Irish tax residence works

Your Irish tax residence is decided by how many days you spend in the country, not by your nationality or where you are from. The tax year runs with the calendar year.

You are Irish tax resident for a year if either of these is true:

• You spend at least 183 days in Ireland during that year, or
• You spend at least 280 days in Ireland across that year and the previous year combined.

For the two-year test, if you spend 30 days or fewer in a year those days are disregarded, so they do not count towards the 280. You are treated as present for a day if you are in the country at any point during it (section 819 of the Taxes Consolidation Act 1997).

The year you arrive and the year you leave are where most of the planning happens, because your residence status changes partway through them.

Ordinary residence: the status that follows you

Residence can change from one year to the next. Ordinary residence is stickier, and it is the part people most often miss.

Once you have been Irish tax resident for three consecutive years, you become ordinarily resident from the start of the fourth year. Ordinary residence then stays with you until you have been non-resident for three consecutive years (section 820 TCA 1997).

This matters most when you leave. For the first three years after you stop being resident, you are still ordinarily resident, and Ireland can still tax your worldwide income, apart from income from a foreign trade or a non-public employment carried on wholly abroad, plus a small amount of other foreign income (up to €3,810 a year, above which the whole amount becomes taxable). Leaving the country does not switch off Irish tax the moment you get on the plane.

Domicile: why it matters more than residence

Domicile is a general-law concept, separate from residence. In plain terms it is the country you treat as your permanent home, the place you ultimately intend to settle. You acquire a domicile of origin at birth, usually your father’s, and you keep it until you deliberately acquire a domicile of choice somewhere else. That takes clear evidence of a settled intention to live in the new country permanently and to give up the old home.

Domicile has nothing to do with day counts, and you can live in Ireland for years without becoming Irish-domiciled. It matters because domicile decides whether you can use the remittance basis, the most valuable tool available to people moving here.

You can read more about how Ireland taxes non-domiciled individuals in our remittances hub.

The remittance basis, explained

If you are Irish tax resident but not Irish-domiciled, you are taxed on the remittance basis. This means:

• Your Irish income and Irish gains are taxed in full, in the normal way.
• Your foreign income and foreign gains are taxed only to the extent you bring them into Ireland.

So foreign investment income, foreign rental profits and gains on foreign shares can stay outside the Irish net for as long as the money stays outside Ireland (sections 29(4) and 71 TCA 1997). Bring it in, and it becomes taxable in the year you bring it in.

Two things are worth knowing. First, this is an Irish rule only. It reduces your Irish tax, not the tax another country charges on the same income, which is where double-taxation relief comes in. Second, it does not cover income from an Irish employment, or the part of a foreign employment relating to duties you actually perform in Ireland, both of which are taxable here regardless of remittance.

The real skill is in what you do before you arrive. Money you already own before becoming resident is clean capital, and it can generally be brought into Ireland without a charge, but only if it is kept separate from later income and gains. Mix them in one account and the benefit is easily lost.

The remittance basis works in your favour on the way out too. For as long as you stay Irish tax resident, and through the three-year ordinary residence period after you leave, foreign income and gains you keep offshore stay outside the Irish net. So if you are non-domiciled, where you hold your money and when you bring it in still matter after you have gone.

Moving to Ireland: what to sort before you arrive

Split-year treatment on your salary

Normally, becoming resident partway through a year would make the whole year’s income Irish-taxable. Split-year treatment prevents that for your employment income. Claim it, and the salary you earned abroad before you arrived is left out of the Irish charge; only your earnings from the date of arrival are taxed here (section 822 TCA 1997).

Two points catch people out. It applies to employment income only, not to rental income, investment income or directors’ fees. And it has to be claimed, not given automatically; how you claim it depends on the year you moved, so it is worth confirming for your situation.

Keep your clean capital clean

Before you become resident, take stock of your savings and investments and decide what to bring to Ireland and when. Existing savings can usually come in tax-free as clean capital, but income and gains earned after you arrive cannot. Keeping pre-arrival money in a separate account from everything that comes later is the difference between a smooth move and an avoidable tax bill.

Foreign assets, pensions and ISAs

If you hold foreign shares, funds or property, the timing and manner of any sale can change the tax dramatically once you are resident. A UK ISA is a good example: the tax-free wrapper is not recognised in Ireland, so the underlying investments are taxed here under normal Irish rules, often less favourably. Foreign pensions each have their own treatment and need to be looked at individually.

We cover this in more detail in our guide to the taxation of foreign pensions in Ireland.

Reliefs for people relocating to work

If your employer is sending you to Ireland, the Special Assignee Relief Programme (SARP, section 825C TCA 1997) can exempt part of your employment income from Irish tax for a period, subject to conditions. If instead you live in Ireland but commute to a job in another country, Transborder Workers Relief (section 825A) may reduce the Irish tax on those foreign earnings. Both carry strict conditions and deadlines, so check them early.

Leaving Ireland: what to sort before you go

Split-year treatment in your final year

Split-year treatment works in reverse when you leave. Claim it, and your employment income after your date of departure is taken out of the Irish charge, so you are not taxed here on a foreign salary you earn once you have gone. As on the way in, it covers employment income only and must be claimed.

The three-year ordinary-residence tail

Because ordinary residence lasts for three years after you stop being resident, Ireland can still tax most of your worldwide income during that tail. If you are non-domiciled, the remittance basis still helps. If you are Irish-domiciled, this is a real exposure that needs planning, not a surprise at the end of the year.

Selling assets after you leave: the five-year rule

There is a specific anti-avoidance rule for people who leave, sell up while abroad, and come back. If you are Irish-domiciled, leave, and return within five years, gains you made while away on certain assets you already held can be pulled back into the Irish net on your return (section 29A TCA 1997). It targets substantial shareholdings you already held before leaving, broadly a holding of 5% or more of a company, or a holding worth more than €500,000. If a large disposal is on the horizon, the timing around your departure and return matters a great deal.

When the time comes, our Capital Gains Tax review service can handle the computation and filing.

The domicile levy

Finally, if you are Irish-domiciled with substantial means, watch the domicile levy. It is a fixed charge of €200,000 a year (Part 18C TCA 1997) on individuals whose worldwide income for the year is over €1 million, who own Irish property worth more than €5 million on 31 December, and whose Irish income tax for the year is under €200,000. Any Irish income tax you pay is credited against it. It affects only a small number of high-net-worth individuals, but if that could be you, it belongs on the radar before you restructure anything.

Will I be taxed twice?

This is the most common worry, and usually the answer is no. Where two countries both tax the same income or gain, Ireland’s double-taxation treaties and its foreign tax credit system are designed to stop you paying twice, by crediting the tax paid in one country against the tax due in the other. The key is coordination: the Irish side and the foreign side have to line up, with reliefs claimed in the right place and the right order.

Our role is the Irish side. Your accountant in the other country handles their filing, and we make sure the two fit together, so nothing is taxed twice and nothing falls between the two systems.

The most common, and most costly, mistakes

1. Moving money into Ireland before getting advice, which can turn tax-free clean capital into a taxable remittance.
2. Assuming that living here a long time makes you Irish-domiciled, or that becoming non-resident switches off Irish tax immediately. Neither is true.
3. Thinking a foreign tax wrapper, like an ISA, keeps its tax-free status in Ireland. It does not.
4. Forgetting the three-year ordinary-residence tail after leaving, and the five-year rule on gains for those who return.
5. Filing the first Irish return on the wrong basis, which is expensive to unwind and can trigger interest and penalties.

How Irish Tax Hub can help

We built a single, fixed-fee service for exactly this situation. Whether you are moving to Ireland or leaving it, the Moving Country Package covers the planning and the paperwork from start to finish:

• A one-to-one consultation with a Chartered Tax Adviser
• A written, plain-English plan for your move
• Your residence, domicile and remittance-basis position confirmed
• A plan for when to move money and when to sell
• Your first Irish tax return prepared and filed
• Coordination with your adviser in the other country

It is one fixed fee of €1,499, the same whether you are single or married, with nothing added on later.

You can see exactly what is included on our Moving Country Package page.

The one thing we would say to anyone thinking about a move: talk to us before you go, not after. The most valuable steps only work while the window is still open.