Personal tax in Luxembourg

Tax residence starts with your home and habitual stay

Article 2 of the Income Tax Law treats an individual as resident where they have a tax domicile or habitual abode in Luxembourg. A resident is within the worldwide income-tax system. The legal inquiry is therefore wider than whether a residence card has been issued or a bank address changed. Establish when accommodation was available, where the household actually lived, the work pattern and any continuing home abroad.

A person without Luxembourg domicile or habitual abode can still have Luxembourg-source taxable income under article 156. Cross-border commuters illustrate the difference: working in Luxembourg does not, on its own, make someone resident there. Where two states claim residence, apply the actual treaty’s residence and income-allocation provisions. There is no blanket rule that a residence certificate cancels another country’s claim.

Nonresident tax assimilation is a separate election that can permit resident-style deductions and assessment when statutory conditions are met. The usual tests include at least 90% of worldwide income taxable in Luxembourg or less than €13,000 of income outside Luxembourg taxation; specific treaty situations also require review. The limited 50-foreign-workday adjustment relates to the 90% test, not to a right to work abroad tax-free.

Identify the income before applying a rate

Salary, business profit, professional fees, pensions, rents, dividends, interest and disposal gains are not interchangeable categories. Start with gross receipts, then identify expenses, social contributions, deductions, exemptions and credits allowed for that category. A foreign holding company can create taxable distributions even if its underlying assets never enter Luxembourg.

A self-employed person should separate the personal income-tax calculation from business permits, social insurance, VAT and any municipal business-tax exposure. A company owner should separately budget corporate profit tax, salary costs and the tax on extracting profits. Directors’ remuneration, ordinary employment and a genuine independent activity cannot be chosen purely by renaming the payment.

The personal tax tariff is national. The municipal corporate/business-tax rate discussed in the company guide is not a municipal surcharge to add to every employee’s personal income tax. Property-related charges and business tax remain separate questions.

The 2026 personal tariff and family assessment

The tariff introduced for 2025 remains the published ordinary tariff for 2026. In class 1, the first €13,230 of adjusted taxable income is in the zero band; marginal rates then rise through multiple bands to 42% above €234,870. These are taxable-income thresholds, not gross-salary thresholds. The employment-fund supplement is an addition to calculated tax, not a further 7% or 9% of salary.

The supplement is 7%, with a 9% upper-income rule above €150,000 in classes 1/1a or €300,000 in class 2. Family status can materially change assessment: class 2 uses the relevant splitting rules, and joint versus individual elections need modelling across both partners’ income. Registered-partner joint assessment has its own full-year partnership/shared-home conditions. Married and unmarried households should not assume that the same payslip settings produce the same final bill.

As a limited tariff illustration, class-1 adjusted taxable income of €15,000 places €1,770 in the 8% band: €141.60 before the employment-fund supplement, statutory rounding and any credits. This example starts after deductions and deliberately does not convert a gross salary into net pay.

Dividends and interest: source withholding is only one layer

A Luxembourg company’s ordinary dividend withholding is 15% of the gross payment, subject to a valid exemption or treaty reduction. For a resident individual this generally does not finish the analysis: the dividend is reported in the investment-income category, with relief for the withholding and any eligible 50% dividend exemption. The company and distribution must meet the exemption’s legal conditions; every foreign dividend is not automatically half exempt.

Certain private savings interest paid by a Luxembourg professional paying agent is subject to a final 20% levy. Ordinary interest from other sources may instead belong in progressive assessment; eligible EU/EEA foreign savings interest can have an election. The final savings levy does not apply in the same way to business assets, legal persons or nonresidents. Keep certificates showing gross income, tax withheld and the instrument’s terms.

Where foreign tax is paid, treaty and domestic credit limits matter. A credit normally cannot be treated as an unlimited refund of all overseas deductions. Exempt foreign income may be used to determine the rate on Luxembourg-taxable income under article 134. That is why a complete worldwide schedule is needed even when a particular item is exempt.

Share gains depend on holding period and participation size

Luxembourg is often described as having no capital-gains tax, which is an incomplete description. A private share disposal within six months of acquisition falls within the speculative-gains framework. For holdings sold after more than six months, the significant-participation rules can still charge tax. Article 100 uses a more-than-10% test at any point in the preceding five years, with spouse/partner, minor-child and specified indirect holdings included.

A long-held ordinary portfolio position below the significant-participation test is generally outside those private share-gain charges. This does not automatically exempt dividends, interest, professional trading income or a business asset. A founder who once held 30% and diluted to 5% before selling must consider the five-year lookback rather than reading only the closing-date cap table.

Taxable significant-participation gains can use the half-global-rate treatment and the relevant ten-year allowance; prior utilisation and household status matter. Speculative gains have their own under-€500 annual threshold. Loss treatment is also restricted by income category: an investment loss should not simply be deducted from employment income. Property has separate rules and a conditional principal-home exemption; this guide does not apply the six-month share rule to a house.

Arrival values: a targeted step-up, not a universal reset

Article 102(4a) specifically substitutes estimated realisable value on becoming resident for the acquisition price of qualifying significant participations. It also covers a convertible loan where the individual holds a significant participation in the issuer. Ordinary article 102 acquisition-cost rules remain relevant outside that targeted exception. The map therefore classifies Luxembourg as mixed rather than promising a market-value basis for every asset.

The arrival-value exception does not apply where the person was previously Luxembourg resident for more than fifteen years and then nonresident for less than five years. That history needs checking before relying on an arrival valuation. Gifts and inheritances also have continuity rules; a value on a foreign inheritance-tax filing is not automatically Luxembourg income-tax cost.

For a hypothetical founder with a qualifying 20% private participation bought for €100,000 and worth €1 million on a first qualifying arrival, the statutory arrival rule may make €1 million the relevant starting amount rather than €100,000. It does not establish the later sale’s rate or other adjustments, and it does not remove departure taxation in the previous country. Obtain a supportable valuation and preserve the acquisition, ownership and residence history together.

Employee deductions and employer contributions in 2026

Pension contributions rose to 8.50% for the employee and 8.50% for the employer from 1 January 2026. Some older official explanatory pages still display 8%; the dated CCSS contribution notice is used here. Health and pension contributions have a capped earnings base, whereas the employee’s dependence contribution has no corresponding maximum. These are different bases, so a single percentage cannot accurately describe every salary.

Indexation on 1 June changes the monthly contribution ceiling during the year. The cap was €13,518.68 for January–May and is €13,856.63 from June. The adult unskilled social minimum rises from €2,703.74 to €2,771.33. Do not multiply the June cap by twelve to reconstruct a full-year 2026 payroll. Part-time work, multiple employers, bonuses and foreign social-security coverage require their own treatment.

For an ordinary full-month salary of €5,000 after 1 June, assuming full Luxembourg coverage and cash-sickness eligibility, employee health is €152.50 and pension €425. Dependence is 1.4% of (€5,000 − €692.83), or approximately €60.30. The resulting €637.80 is an illustration of these three social deductions only. Income tax, benefits, other deductions and payroll rounding are separate; it is not a promised net salary.

The impatriate exemption is an employment incentive

The current article 115(13b) regime exempts 50% of qualifying annual gross remuneration, with eligible remuneration limited to €400,000. It is not a 50% tax rate and is not an exemption for an owner’s worldwide investment income. The qualifying fixed gross annual salary must be at least €75,000 before cash and in-kind benefits, and the employee must perform the qualifying work for at least 75% of working time.

During the five tax years before starting, the employee must not have been Luxembourg tax domiciled, lived within 150 km of the border or been subject to Luxembourg personal income tax on professional income. Direct recruits need specialised expertise; intra-group assignments have further experience, continuing-employment and return-right conditions. The rule also prevents replacement of a nonqualifying employee and generally limits qualifying impatriates to 30% of the local workforce, with an exception for businesses under ten years old.

The maximum period ends at the end of the eighth tax year following the start year, subject to continuing eligibility. An employee starting in 2026 therefore needs an individually confirmed end date and annual compliance rather than an assumption of eight exactly equal twelve-month periods. Employers have a January reporting obligation. Existing pre-2025 beneficiaries have transitional rules and an irrevocable election into the new version; switching is not automatically beneficial.

An offshore company still needs its own residence analysis

The Luxembourg CFC provision in article 164ter expressly defines its taxpayer as a resident collective entity or a domestic permanent establishment of a nonresident entity. This is a corporate attribution rule; it should not be portrayed as automatic attribution to every individual shareholder. Holding foreign companies personally nevertheless creates separate questions about distributions, transparent entities, business income and anti-abuse.

The company can itself be Luxembourg resident when its statutory seat or central administration is there. Moving the founder and continuing all major decisions from the new home can therefore change the company’s position, even when no shares are transferred. Board paperwork alone is not a complete account of where the business is administered. Record who actually controls contracts, finances, hiring and risk.

The move year and later departure

Prepare separate resident and nonresident periods and examine each income item’s timing and source. The date a payment reaches a bank is not always the date it arose. Deferred bonuses, options, pensions, rent and disposals require their own allocation. Keep the previous country’s exit calculation beside the Luxembourg opening records so that the two bases and foreign-tax relief are reconciled.

Departure does not automatically eliminate all later Luxembourg tax. Article 156(8)(b) can retain a domestic claim over relevant gains from significant participations in Luxembourg-seated or centrally administered entities where the seller was resident for more than fifteen years and became nonresident less than five years before realisation, subject to exclusions and treaty limits. This is a later-disposal rule, not a claim that all private assets are deemed sold on departure. Transfers of business assets out of Luxembourg’s taxing jurisdiction are a different exit-tax issue under article 38.

Build an annual file that an accountant can actually use

The normal personal return deadline is 31 December of the following year, while specific requests from the tax office must also be respected. For example, the 2025 return is filed in 2026; this does not turn the 2025 form into the legal tariff for all 2026 transactions. Salary withholding and a tax card do not by themselves settle the need for an annual return.

Maintain salary and pension certificates, foreign tax assessments, dividend and interest statements, acquisition/disposal schedules, loan and insurance evidence and the documents supporting deductions. An arrival-year case needs residence dates and foreign-income records; a family election needs both partners’ information. Review deductible costs and credits against the actual family profile instead of applying every maximum displayed in a generic calculator.

Our starting point is the complete household and business position. A useful engagement tests the available alternatives, records the legal reasoning, then coordinates the registrations and implementation that follow from the chosen plan.