If you're considering moving from Germany to Ireland taxes should be near the top of your planning checklist. A cross-border relocation between two EU member states with very different tax systems can create unexpected liabilities — or significant savings — depending on how well you plan the transition. Whether you're relocating for a tech career in Dublin, pursuing opportunities in Ireland's booming pharma sector, or making a lifestyle change, understanding the expat tax Germany Ireland landscape is essential.

In this guide, we walk through everything you need to know about relocation tax planning when moving from Germany to Ireland in the 2025/2026 tax year, including residency rules, income tax rates, the double taxation agreement (DTA), and practical steps to minimise your overall tax burden.

Understanding Tax Residency: When Does Germany Let Go and Ireland Take Over?

The single most important concept in any international relocation is tax residency. Your tax obligations in both Germany and Ireland depend almost entirely on where you are considered a tax resident — and during the year of your move, you may be resident in both countries simultaneously.

German Tax Residency Rules

In Germany, you are considered a tax resident (unbeschränkt steuerpflichtig) if you maintain a habitual abode (gewöhnlicher Aufenthalt) or a domicile (Wohnsitz) in the country. Key points include:

  • Domicile test: If you retain a home in Germany that is available for your use, you may still be considered tax resident — even if you've moved abroad.
  • Habitual abode test: A continuous physical presence in Germany of more than six months in a calendar year generally establishes residency.
  • Year-of-departure taxation: Germany taxes residents on their worldwide income. In the year you leave, you are generally taxed as a resident up to your departure date and as a non-resident for the remainder of the year on German-source income only.

Common mistake: Many expats assume that simply leaving Germany ends their tax obligations. However, if you keep an apartment, a registered address, or even a furnished room at a family member's home, German tax authorities (Finanzamt) may argue you still have a domicile there.

Irish Tax Residency Rules

Ireland uses a day-count test to determine tax residency:

  • You are tax resident in Ireland if you spend 183 days or more in Ireland in a tax year (which runs from 1 January to 31 December), or
  • You spend 280 days or more in Ireland over two consecutive tax years (with at least 30 days in each year).
  • Domicile is a separate concept in Irish tax law: if you are both resident and domiciled in Ireland, you are taxed on worldwide income. If you are resident but not domiciled (which is the case for most arriving expats), you are taxed on Irish-source income and any foreign income remitted to Ireland.

This remittance basis of taxation is a significant planning opportunity for expats — more on that below.

Split-Year Treatment

Neither Germany nor Ireland provides an automatic "split-year" treatment by domestic law in the way some countries do. However:

  • Germany generally accepts split-year taxation in practice for the year of departure and arrival.
  • Ireland does not formally offer split-year relief, but the double taxation agreement can resolve dual-residency issues using tie-breaker rules (see below).

German Income Tax: Your Final Obligations

Before settling into life in Ireland, you need to properly close out your German tax affairs. Here's what to keep in mind for the 2025 tax year.

German Income Tax Rates 2025

Germany applies progressive income tax rates ranging from 0% to 45%:

Taxable Income (EUR) Tax Rate
Up to €12,096 0% (basic allowance)
€12,097 – €68,480 14% – 42% (progressive)
€68,481 – €277,825 42%
Over €277,825 45% (Reichensteuer)

In addition, a solidarity surcharge (Solidaritätszuschlag) of 5.5% on income tax applies for higher earners, and church tax (Kirchensteuer) of 8%–9% applies if you are a registered member of a qualifying church.

Use our Germany Income Tax Calculator to estimate your German tax liability for the portion of the year you remain resident.

Key Steps Before Leaving Germany

  1. Deregister your address (Abmeldung) at the local Bürgeramt — this is a legal requirement and signals your departure to the tax authorities.
  2. Cancel or inform your Finanzamt of your move and request clarification on your final tax obligations.
  3. File your final German tax return for the year of departure. You typically have until 31 July of the following year (or 28/29 February two years later if you use a tax advisor).
  4. Close German bank accounts you no longer need, or be aware that interest income from German accounts remains subject to German withholding tax (Kapitalertragsteuer) of 25% plus solidarity surcharge.
  5. Review pension and social security — contributions to German statutory pension (gesetzliche Rentenversicherung) are preserved and can be claimed later regardless of where you live.

Irish Income Tax: What to Expect in 2025/2026

Ireland's income tax system is relatively straightforward but comes with several charges that, combined, can result in a significant effective rate.

Irish Income Tax Rates 2025

Ireland operates a two-rate income tax system:

Rate Band Single Person Married (One Income) Married (Two Incomes)
20% (standard rate) Up to €44,000 Up to €53,000 Up to €88,000*
40% (higher rate) Above €44,000 Above €53,000 Above €88,000*

*The increased standard rate band for married couples with two incomes is capped at €44,000 per spouse for 2025.

In addition to income tax, Irish employees and self-employed individuals pay:

  • USC (Universal Social Charge): 0.5% on the first €12,012; 2% on the next €13,748 (€12,013–€25,760); 4% on the next €44,284 (€25,761–€70,044); and 8% on income above €70,044.
  • PRSI (Pay Related Social Insurance): Generally 4% for employees on all earnings (Class A), with employer PRSI at 11.05%.

Example: If you earn €80,000 gross in Ireland as a single employee:

  • Income tax: €44,000 × 20% = €8,800 + €36,000 × 40% = €14,400 → €23,200
  • USC: Approximately €3,507
  • Employee PRSI: €80,000 × 4% = €3,200
  • Total deductions: approximately €29,907, for an effective rate of around 37.4%.

Use our Ireland Income Tax Calculator to run your own personalised calculation.

The Remittance Basis: A Key Planning Opportunity

As a newly arrived expat who is resident but not domiciled in Ireland, you can benefit from the remittance basis of taxation:

  • You are only taxed on Irish-source income and foreign income that you bring (remit) into Ireland.
  • Foreign investment income, rental income from German property, or capital gains that remain outside Ireland are not taxed in Ireland under this basis.
  • Employment income for duties performed in Ireland is always taxable in Ireland regardless of where it is paid.

Important: Ireland's remittance basis regime is under increasing scrutiny. The Irish government announced reforms effective from 1 January 2025, transitioning to a new "Foreign Income and Gains" (FIG) regime that limits the remittance basis to a four-year period for new arrivals. After four years of Irish tax residency, worldwide income becomes taxable regardless of remittance. If you arrive in 2025, you have until the end of 2028 to benefit from this favourable treatment.

The Germany-Ireland Double Taxation Agreement

Germany and Ireland have a comprehensive Double Taxation Agreement (DTA), most recently updated, that prevents you from being taxed twice on the same income. Understanding how the DTA works is central to effective expat tax Germany Ireland planning.

Key Provisions of the DTA

  • Employment income (Article 14): Generally taxable in the country where the employment is exercised. If you work in Ireland for an Irish employer, Ireland has the primary taxing right.
  • Pensions (Article 17): German statutory pensions (gesetzliche Rente) are generally taxable only in Germany. Private pensions may follow different rules depending on their structure.
  • Rental income (Article 6): Income from immovable property is taxable in the country where the property is located. German rental income remains taxable in Germany.
  • Interest and dividends (Articles 10 & 11): May be taxed in both countries, but the DTA limits withholding tax rates (typically 0%–15%) and the country of residence provides a credit for tax paid at source.
  • Capital gains (Article 13): Gains from the sale of immovable property are taxed where the property is situated. Other capital gains are generally taxable in the country of residence.

Tie-Breaker Rules

If you are considered tax resident in both Germany and Ireland in the same year, the DTA's tie-breaker rules (Article 4) resolve the conflict by considering, in order:

  1. Permanent home — Where do you have a permanent home available? If you've sold or terminated your lease in Germany and established a home in Ireland, this favours Ireland.
  2. Centre of vital interests — Where are your personal and economic ties closer?
  3. Habitual abode — Where do you spend more time?
  4. Nationality — If all else is equal.

Planning tip: To ensure a clean break with Germany, make sure you do not retain a permanent home there. This is the most common source of dual-residency disputes.

Special Employment Tax Incentive: SARP

Ireland offers a valuable incentive for qualifying expats called the Special Assignee Relief Programme (SARP). If you are assigned to work in Ireland by a foreign employer (or an associated company), SARP provides:

  • Income tax relief on 30% of income between €100,001 and €1,000,000.
  • The relief is available for a maximum of five consecutive tax years.
  • You must not have been tax resident in Ireland in the five years prior to arrival.
  • Your employer must apply for the relief.

Example: If you earn €150,000 under SARP:

  • The 30% relief applies to €50,000 (the portion between €100,001 and €150,000), saving approximately €20,000 in income tax at the 40% rate.

SARP can result in substantial savings for high-earning expats. Ensure your employer is aware of this programme and applies before the deadline (within 90 days of the employee's start date in Ireland).

Step-by-Step Relocation Tax Planning Checklist

To ensure a smooth transition and optimise your tax position when moving from Germany to Ireland, follow this practical checklist:

  1. Choose your move date strategically. If possible, time your move to the beginning of a calendar year to simplify residency calculations and avoid split-year complications.
  2. Deregister in Germany (Abmeldung). Do this promptly upon departure — it is both a legal obligation and critical evidence for ending German tax residency.
  3. Terminate or give up your German residence. Do not keep a furnished apartment or room available. This is the most common trigger for continued German tax residency claims.
  4. Register with Irish Revenue. Once you arrive and begin employment in Ireland, your employer will register you under the PAYE system. You can also register for myAccount on Revenue.ie.
  5. Claim non-domiciled status in Ireland. If you were not born in Ireland and have not adopted Irish domicile, you can benefit from the remittance basis (now limited to four years under the FIG regime from 2025).
  6. Explore SARP eligibility. If you're being transferred by a multinational employer, check whether you qualify for the Special Assignee Relief Programme.
  7. Keep foreign income offshore. If using the remittance basis, ensure non-Irish income is kept in bank accounts outside Ireland and not transferred to Irish accounts.
  8. File your final German tax return. Report all income earned up to your departure date. Claim any deductions you're entitled to (moving expenses, double household costs during transition, etc.).
  9. File your first Irish tax return. If you have non-PAYE income or wish to claim credits and reliefs, you must file a Form 11 or Form 12 by the relevant deadline (31 October of the following year, or mid-November if filing online via ROS).
  10. Review the DTA for each income type. Ensure that every source of income (salary, pension, rental, investment) is being taxed in the correct jurisdiction and that double taxation credits are properly claimed.

Frequently Asked Questions

Will I be taxed twice on the same income?

No, provided you correctly apply the Germany-Ireland Double Taxation Agreement. The DTA allocates taxing rights to one country or provides a tax credit mechanism to eliminate double taxation.

Do I need to pay German tax after I leave?

Only on German-source income (e.g., rental income from German property, German pensions, or income from a German business). Once you are no longer tax resident, Germany cannot tax your worldwide income.

Is Ireland a low-tax country?

Ireland's corporate tax rate (12.5%) is famously low, but personal income tax rates are relatively high — up to 40% plus USC and PRSI, resulting in a marginal rate of around 52% for high earners. However, the remittance basis, SARP relief, and generous tax credits can significantly reduce the effective rate for expats.

How does the new FIG regime affect me?

If you become Irish tax resident from 2025, you can use the remittance basis for a maximum of four tax years. After that, you will be taxed on worldwide income regardless of whether it is brought into Ireland. This is a significant change from the previous indefinite remittance basis.

Can I contribute to a pension in Ireland and get tax relief?

Yes. Contributions to a Revenue-approved pension scheme in Ireland are tax-deductible, subject to age-related percentage limits (ranging from 15% to 40% of net relevant earnings). This is one of the most effective tax planning tools available in Ireland.

Conclusion: Plan Early, Save More

Relocating from Germany to Ireland involves navigating two distinct tax systems, but with proper planning, you can minimise your overall tax burden and avoid costly mistakes. The key takeaways for expat tax Germany Ireland planning in 2025/2026 are:

  • Make a clean break from Germany: Deregister, give up your home, and file your final tax return.
  • Understand Irish residency and domicile rules: Leverage the remittance basis (now available for up to four years under the FIG regime) to shelter foreign income.
  • Use the Double Taxation Agreement: Ensure each income type is taxed in the correct jurisdiction and claim credits where needed.
  • Explore SARP relief: If you qualify, the savings can be substantial.
  • Use tax calculators: Estimate your obligations in both countries with our Germany Income Tax Calculator and Ireland Income Tax Calculator.

Proper relocation tax planning is not just about compliance — it's about making informed decisions that protect your wealth during one of life's biggest transitions.

This article is for informational purposes only and does not constitute tax advice. Tax laws change frequently; consult a qualified tax professional for advice specific to your situation.