Le Morne and the lagoon of Mauritius linked to Luxembourg City, with tax documents overlaid

International Taxation & Mauritius

Luxembourg ↔ Mauritius

Who taxes your pension, your rental income, your shareholdings and your estate between Luxembourg and Mauritius.

The 1995 treaty and its protocols, read article by article, and Luxembourg law as in force in 2026: whether you are leaving for Mauritius or buying from Luxembourg.

Guide updated on 28 September 202631 min readBy Franck Penarrubia, director of the Westimmo agency+230 5483 4666 · Royal Road, Tamarin

What Luxembourg keeps,
what Mauritius taxes

The essentials

Four rules to know before you leave or buy.

Treaty signed on 15 February 1995, applicable since 1996, amended by a 2014 protocol and by the MLI

Luxembourg statutory pension: taxed in Luxembourg only, even once you are settled in Mauritius

Shareholding of more than 10%: the treaty reserves the capital gain to Mauritius as soon as you live there

Estate: as a Luxembourg resident, your Mauritian property escapes Luxembourg duties; as a non-resident, only Luxembourg real estate remains subject to them

01 In brief

Who taxes what between Luxembourg and Mauritius?

The treaty allocates each item of income to one of the two States, or to both with a correction. Everything depends first on your country of residence: one table for the Luxembourg resident who settles in Mauritius, another for the one who stays in Luxembourg and invests in Mauritius.

You live in Mauritius: what Luxembourg keeps

Luxembourg–Mauritius Treaty of 15 February 1995, as amended, and the Luxembourg income tax law (L.I.R.) consolidated as at 1 January 2026, read on 28 September 2026.
Income or assetWhere it is taxedWhat you need to knowSource
Luxembourg statutory pension (social security scheme)In Luxembourg onlyMauritius cannot tax it; the pension fund withholds tax at sourceTreaty, art. 18, 3
Occupational supplementary pension, other private pension, annuityIn Mauritius onlyIn Luxembourg, benefits from a supplementary scheme are in principle exempt: tax was levied on the contributionsTreaty, art. 18, 1; L.I.R., art. 115, 17a
Luxembourg public-sector pensionIn Luxembourg onlyIf you are a resident and national of Mauritius: in Mauritius onlyTreaty, art. 19, 2
Rent from a property located in LuxembourgIn LuxembourgAs a non-resident: in principle tax class 1, and a rate of at least 15%, unless treated as a residentTreaty, art. 6; L.I.R., art. 156 and 157
Capital gain on a property located in LuxembourgIn LuxembourgProgressive rate before 5 years of ownership, half the overall rate thereafter; main residence exempt under conditionsTreaty, art. 13, 1; L.I.R., art. 99bis, 99ter, 156
Dividends from a Luxembourg companyIn Luxembourg and in Mauritius15% withholding, limited to 10% by the treaty (5% for a company holding 10%)Treaty, art. 10; L.I.R., art. 148
Interest from Luxembourg sourcesIn Mauritius onlyLuxembourg does not levy withholding tax on ordinary interestTreaty, art. 11
Capital gain on shares, even a substantial shareholdingIn Mauritius onlyThe Luxembourg “15 years / 5 years” rule yields to the treatyTreaty, art. 13, 4; L.I.R., art. 156, 8°
Salary from work performed in MauritiusIn MauritiusEven if paid by a Luxembourg employerTreaty, art. 15
Directors’ fees (tantièmes) from a Luxembourg companyIn Luxembourg; in Mauritius too if they are remitted there20% withholding tax; Mauritius gives credit for the Luxembourg taxTreaty, art. 16; ACD

You live in Luxembourg and invest in Mauritius

Same texts; Mauritian scale of the Finance Act 2026 (art. 7(v)) for the income year that opened on 1 July 2026.
Income or assetWhere it is taxedWhat you need to knowSource
Rent from your Mauritian propertyIn MauritiusExempt in Luxembourg, but taken into account to determine the rate on your other incomeTreaty, art. 6 and 24, 3, a; L.I.R., art. 134
Capital gain on resaleAllocated to Mauritius, which does not tax itLuxembourg exempts what Mauritius “may” tax; have the treatment confirmed before you sellTreaty, art. 13, 1 and 24, 3, a
Dividends from a Mauritian companyIn LuxembourgNo withholding in Mauritius; Luxembourg scale, with a 50% exemption if the company is fully taxableTreaty, art. 10; L.I.R., art. 115, 15a
Interest from an account in MauritiusIn Luxembourg onlyAt the scale rates: the 20% final withholding applies only to paying agents in the Union and the EEATreaty, art. 11; Guichet.lu
Estate on your Mauritian propertyNowhereLuxembourg does not tax real estate located abroad; Mauritius levies no dutyLaw of 27 December 1817; AED
Gift of your Mauritian propertyNot in LuxembourgWithout a Luxembourg notarial deed, no Luxembourg registration dutyGuichet.lu, “Making a gift”

02 The treaty

What does the tax treaty between Luxembourg and Mauritius contain?

Signed in Luxembourg on 15 February 1995, with a protocol of the same date, it covers taxes on income and on capital. A protocol signed in Brussels on 28 January 2014 modernised the exchange of information and introduced arbitration; the OECD multilateral instrument (MLI) added an anti-abuse clause.

Administration des contributions directes (ACD, the Luxembourg direct tax authority), “Conventions en vigueur” (treaties in force); consolidated text of the treaty as amended by the MLI, prepared by the competent authorities of both States and published by the MRA on 30 November 2020.
StepDateReference
Signature15 February 1995, in Luxembourg, with a protocol of the same dateMémorial A No. 24 of 1996, page 895
Application in LuxembourgFrom 1 January 1996ACD, “Conventions en vigueur”
Amending protocolSigned in Brussels on 28 January 2014, with a memorandum of understanding of 10 February 2014; applied from 1 January 2016Mémorial A No. 232 and No. 247 of 2015
Multilateral instrument (MLI)In force on 1 August 2019 for Luxembourg, on 1 February 2020 for MauritiusRatifications of 9 April 2019 and 18 October 2019
Effect of the MLI on the treatyWithholding taxes: 1 January 2021 in Luxembourg, 1 July 2020 in Mauritius; other taxes: periods starting on or after 1 August 2020MLI, art. 35
Taxes coveredLuxembourg: personal income tax, corporate income tax, net wealth tax, municipal business tax; Mauritius: income taxTreaty, art. 2

The clause of the 1995 protocol

A Mauritian company that is not subject in Mauritius to a fixed-rate tax equivalent to at least 15%, calculated under Luxembourg law, is not a “resident” within the meaning of the treaty. This clause still appears in the consolidated text.

An anti-abuse clause

Since the MLI, a treaty benefit is denied if obtaining it was one of the principal purposes of an arrangement (MLI, art. 7). A genuine, documented settlement in Mauritius remains the best support.

Disputes and limits

If you are taxed contrary to the treaty, you apply to the competent authority of either State within three years (art. 26, as amended by the MLI); failing agreement, arbitration may be requested. The treaty settles neither estates nor gifts, and contains no article on assistance in the collection of tax.

03 Tax residence

How do you cease to be a Luxembourg tax resident?

You are a Luxembourg resident for as long as you have your tax domicile or habitual abode in the Grand Duchy. Mauritius makes you a resident from 183 days of presence. If both countries regard you as a resident, the treaty decides, step by step.

Counting your days in Mauritius →
L.I.R., art. 2; ACD, “Résident / non-résident”; Mauritian Income Tax Act and the MRA Foreign Income page.
TestLuxembourgMauritius
Legal testTax domicile or habitual abode in the Grand Duchy (L.I.R., art. 2)183 days in the income year, or 270 days over that year and the two preceding ones
Indicator used by the authoritiesA centre of vital interests outside Luxembourg in principle makes you a non-resident, whatever your addressDomicile in Mauritius, unless permanently resident abroad
Residence permitA Luxembourg residence permit does not by itself establish tax residenceThe residence permit does not replace the day count
Scope of the taxResident: worldwide income; non-resident: Luxembourg-source income only (L.I.R., art. 2 and 156)Resident: Mauritian income, and foreign income remitted to Mauritius

1. The permanent home

You are a resident of the State where you have a permanent home available to you. If you have one in each country, of the State with which your personal and economic ties are closer (art. 4, 2, a).

2. Habitual abode

If this centre of vital interests cannot be determined, or if you have no permanent home, of the State where you habitually live (art. 4, 2, b).

3. Nationality

If you habitually live in both States, or in neither, of the State of which you are a national (art. 4, 2, c).

4. Agreement of the two authorities

If you are a national of both States, or of neither, the authorities of the two States settle the question by mutual agreement (art. 4, 2, d).

A company

Resident in both States, it is deemed resident in the State where its place of effective management is situated (art. 4, 3).

Your home in Mauritius

Buying or renting your residence, obtaining the permit that goes with it: Westimmo organises these steps with you, supporting documents in hand. Residence permits →

04 Double taxation

How does the treaty avoid being taxed twice?

Mauritius grants a credit for Luxembourg tax. Luxembourg exempts the income that the treaty allows Mauritius to tax, while keeping it to calculate its rate; for dividends, it credits the Mauritian tax.

Treaty, art. 24; L.I.R., art. 134; ACD, “Méthode de l’exemption” (exemption method).
You resideMethodDetails
In MauritiusCredit equal to the Luxembourg tax, set against the Mauritian tax due on the same incomeFor dividends, only the tax withheld on the dividend counts; a Mauritian company holding at least 10% also obtains a credit for the tax paid by the Luxembourg company (art. 24, 2)
In LuxembourgExemption, with progression provisoExcept for dividends, for which Mauritian tax is credited (art. 24, 3, b); and except for profits of a permanent establishment taxed in Mauritius at a rate equivalent to less than 15% (art. 24, 3, c)

“May be taxed”

The treaty exempts in Luxembourg the income which, under its terms, “may be taxed” in Mauritius (art. 24, 3, a). Before counting on the exemption of income that Mauritius does not tax, have the Luxembourg treatment of your case confirmed.

The progression proviso

Exempt income is not taxed in Luxembourg, but it enters a notional base that sets the overall rate applied to your other income (L.I.R., art. 134).

Income that the treaty does not cover

It is taxable only in the State of residence, wherever it arises (art. 22, 1).

05 A property kept in Luxembourg

What happens to a property you keep in Luxembourg?

It remains taxed in Luxembourg: rent as a non-resident, capital gain on resale depending on the holding period. On your death, it will be the only asset subject to Luxembourg duties, through the death transfer duty (droit de mutation par décès): the children’s statutory share and the spouse’s share are exempt, the non-statutory share is taxed.

Rent

Taxable in Luxembourg (treaty, art. 6; L.I.R., art. 156, 7°), by return. As a non-resident, you are in principle placed in class 1, with a rate of at least 15% on this income (L.I.R., art. 157, 5, and 157bis, 6), unless treated as a resident. Mauritius taxes it only if it is remitted there, less the Luxembourg tax (art. 24, 2).

Treatment as a resident

On request, if at least 90% of your worldwide income is taxable in Luxembourg, or if your income not taxable in Luxembourg stays below €13,000: you regain the deductions and the tax class of residents (L.I.R., art. 157ter).

The capital gain

Taxable in Luxembourg (treaty, art. 13, 1; L.I.R., art. 156, 8°). Sold within 5 years of acquisition: speculation gain, at the progressive scale. Beyond that: half the overall rate, after an allowance of €50,000 per ten-year period, €100,000 for a couple taxed jointly.

Five years, not two

Since 2025, the speculation period on a building has been five years (L.I.R., art. 99bis and 99ter). The two-year period applied only to sales from 1 January to 30 June 2025, or until 30 September 2025 if the preliminary sale agreement was registered by 30 June.

The former main residence

Its sale is exempt, for example if you sell it no later than 31 December of the year following your move and had occupied it since acquiring it. The sale must still be declared, with annex 700.

The estate

If you die resident in Mauritius, you are no longer an “inhabitant of the Grand Duchy”: only this property bears the death transfer duty, at the same rate and with the same exemptions as inheritance tax: your children are exempt up to their statutory share, your spouse entirely so.

06 Investing in Mauritius

You buy in Mauritius from Luxembourg: who taxes what?

The property and its rent fall first under Mauritius: 5% registration duty on purchase, rent at the Mauritian scale, no capital gains tax. In Luxembourg, this income is exempt but counts towards your rate, and the property stays outside your Luxembourg estate.

Tax on rent in Mauritius →

On purchase

5% registration duty and notary fees in Mauritius. A property of at least USD 375,000 bought under a scheme opens the way to a residence permit. Purchase costs →

Rent

Taxed in Mauritius at the scale, without the residents’ allowances; a tenant that is not an individual withholds 10% at source. In Luxembourg, exempt, but taken into account to set the rate on your other income (art. 24, 3, a).

Net rent of Rs 2,000,000: Rs 250,000

On the 2026-2027 scale, Rs 2,000,000 of net taxable rent, about €37,110, gives Rs 250,000 of Mauritian tax, about €4,640, or 12.5%.

Resale

Mauritius does not tax an individual’s capital gain; the seller pays 5% transfer tax. As the treaty allocates this capital gain to Mauritius (art. 13, 1), Luxembourg exempts it with progression proviso. Reselling →

The estate

Luxembourg inheritance tax does not apply to real estate located abroad: your Mauritian villa is not caught by it. Mauritius levies no inheritance tax.

The bank account

Its interest is taxable only in Luxembourg (art. 11), at the scale: the 20% final withholding is available only for paying agents in the Union or the EEA.

07 Salaries, business activity, companies

Do you work or run a company between the two countries?

A salary is taxed where the work is done; a self-employed person, in the State of residence, unless there is a fixed base in the other; directors’ fees also in the State of the company. A Mauritian company is entitled to the treaty only if it is subject in Mauritius to a tax of at least 15%, calculated the Luxembourg way.

Self-employed or Premium visa →

The employee

Taxable in the State where the work is performed. A stay of no more than 183 days in any twelve-month period remains taxed in the State of residence if the employer is not from the other State and does not use a permanent establishment situated there (art. 15).

Teleworking from Mauritius

Working from Mauritius for a Luxembourg employer means working in Mauritius: the salary is taxable there. Also check that your residence permit allows this work.

The self-employed person

Taxed in the State of residence, unless he or she habitually has a fixed base in the other State (art. 14). On departure, the assets of the business are deemed sold (see “On departure”).

Director of a Luxembourg company

Directors’ fees (tantièmes) and attendance fees remain taxable in Luxembourg (art. 16), with a 20% withholding tax according to the ACD.

A Luxembourg company

Its dividends bear a 15% withholding tax (L.I.R., art. 148), limited by the treaty to 10%, or 5% for a company holding at least 10% of the capital (art. 10, 2). It remains subject to corporate net wealth tax.

A Mauritian company

15% corporate tax in Mauritius and no withholding on its dividends. For the treaty, it must be subject to a fixed-rate tax of at least 15% calculated under Luxembourg law (1995 protocol): have this checked if it benefits from a partial exemption. Buying through a company →

08 Dividends and interest

How are your dividends and interest taxed?

Settled in Mauritius, you bear on your Luxembourg dividends a withholding capped at 10%, and none on your interest. As a Luxembourg resident, your Mauritian income arrives without withholding and follows the Luxembourg scale.

Luxembourg dividends

15% withholding (L.I.R., art. 148), reduced to 10% for an individual resident in Mauritius, 5% for a company holding 10% (art. 10, 2). For a non-resident, the withholding is in principle final taxation in Luxembourg (L.I.R., art. 157, 3).

Luxembourg interest

Taxable only in Mauritius (art. 11). Luxembourg law, moreover, provides for no withholding on ordinary interest paid to a non-resident.

Mauritius side

As foreign income, it is taxed there only if remitted, less the Luxembourg tax (art. 24, 2).

Mauritian dividends

No withholding in Mauritius. As a Luxembourg resident, you declare them at the scale; half is exempt if the Mauritian company is fully taxable at a tax corresponding to Luxembourg corporate income tax (L.I.R., art. 115, 15a).

Mauritian interest

Exempt in Mauritius for a non-resident if paid by a licensed bank, and reserved to Luxembourg by the treaty (art. 11): progressive scale, with no final withholding.

The Luxembourg scale

From 0% to 42%, a rate reached above €234,870 of taxable income in class 1 (L.I.R., art. 118), plus the employment fund contribution.

09 Capital gains

Who taxes your capital gains?

On shares, the treaty gives the capital gain to the State of residence alone: Mauritius, which exempts it, once you are settled, even for a substantial shareholding in a Luxembourg company. As a Luxembourg resident, you remain subject to the six-month and 10% rules.

Treaty, art. 13; L.I.R., art. 99bis, 99ter, 100 and 156, 8°; Guichet.lu; Mauritian Income Tax Act, Second Schedule, Part II.
Capital gainYou reside in MauritiusYou reside in Luxembourg
Shares, less than 10% of the capitalMauritius only (art. 13, 4), which exempts these gainsTaxed at the scale if sold within 6 months; exempt beyond
Substantial shareholding: more than 10% at any time in the last 5 yearsMauritius only (art. 13, 4), despite the Luxembourg 15 years / 5 years ruleScale before 6 months; beyond, half the overall rate after an allowance of €50,000 per ten years
Real estate in LuxembourgLuxembourg: scale before 5 years, half the overall rate beyondLuxembourg, same rules; main residence exempt
Real estate in MauritiusMauritius, which does not tax an individual’s capital gainAllocated to Mauritius, exempt in Luxembourg with progression proviso

The “15 years / 5 years” rule

Domestic law targets the capital gain on a shareholding of more than 10% in a Luxembourg company, realised by a non-resident who was resident for more than fifteen years and became non-resident less than five years before the sale (L.I.R., art. 100 and 156, 8°, b), subject to the treaty.

What the treaty says

Gains from property other than real estate or permanent establishment property are taxable only in the seller’s State of residence (art. 13, 4): as a resident of Mauritius within the meaning of the treaty, you escape this rule.

Provided your residence is genuine

The MLI anti-abuse clause (art. 7) allows the benefit to be denied if the principal purpose of the move was to escape the rule. A lasting, documented settlement in Mauritius before the sale is your best evidence.

10 Pensions

Where is your Luxembourg pension taxed?

The treaty distinguishes three cases: the statutory pension, which only Luxembourg taxes; supplementary and other private pensions, reserved to Mauritius; public pensions, taxed in Luxembourg except for a resident who is a Mauritian national.

Treaty, art. 18 and 19; L.I.R., art. 115, 17a, 142 and 156, 5°; ACD, tax assimilation (assimilation fiscale).
PensionExamplesWhere it is taxedSource
Statutory pensionOld-age pension from the Caisse nationale d’assurance pension (CNAP, the national pension insurance fund), paid under social security legislationIn Luxembourg onlyArt. 18, 3
Occupational supplementary pensionSupplementary scheme set up by an employer (law of 8 June 1999)In Mauritius only; exempt in Luxembourg in any caseArt. 18, 1; L.I.R., art. 115, 17a
Other private pension, annuityPension from a previous job outside social security; life annuity bought for a capital sumIn Mauritius onlyArt. 18, 1 and 2
Public-sector pensionState, municipality or public body, for services rendered to themIn Luxembourg only; in Mauritius only if you are a resident and national of MauritiusArt. 19, 2
Pension from a public commercial activityServices rendered in an industrial or commercial activity of a public bodyRules for private pensionsArt. 19, 3

Statutory pension: Luxembourg alone

The treaty says “taxable only”: Mauritius cannot tax your CNAP pension, even if remitted (art. 18, 3). The fund withholds Luxembourg tax at source; for a non-resident, this withholding is in principle final taxation (L.I.R., art. 157, 3).

Supplementary pension: already taxed on the way in

The employer paid 20% tax on its contributions (L.I.R., art. 142); benefits are exempt in Luxembourg (art. 115, 17a), except for certain in-house schemes. The treaty reserves this pension to Mauritius.

Individual retirement savings contract

Luxembourg treats its annuities as Luxembourg income where the payments were deducted (L.I.R., art. 156, 5°, c). Have their classification under the treaty confirmed before you leave.

Treatment as a resident

A pensioner of whom at least 90% of worldwide income is taxable in Luxembourg: you may ask to be taxed as a resident, with its deductions and, for a couple, class 2.

Public-sector pension: nationality matters

Taxed in Luxembourg only, it is taxed only in Mauritius if you are both a resident and a national of Mauritius (art. 19, 2, b).

Mauritius side

As foreign income, the pensions that the treaty reserves to Mauritius are taxed there if remitted, at the Mauritian scale.

11 Estate and gifts

Who taxes the estate of a Luxembourg national settled in Mauritius?

Mauritius levies no inheritance or gift tax, and the treaty does not deal with them. In Luxembourg, everything depends on your status at death: as an inhabitant of the Grand Duchy, your estate is taxed, except for your real estate located abroad; as a non-inhabitant, only your Luxembourg real estate is, through the death transfer duty. In the direct line, the exemption is limited to the statutory share; the spouse, and the partner whose declaration has been registered for more than three years, are exempt on everything they receive.

Estate: Mauritius compared with Europe →

What Luxembourg taxes

Law of 27 December 1817 on the collection of inheritance tax, art. 1; Indirect taxation portal (AED), “Successions” and “Exemptions”.
SituationDuty leviedAssets covered
Deceased an inhabitant of the Grand Duchy: domicile or seat of wealth in LuxembourgInheritance taxEverything received in the estate, except real estate located abroad and, under conditions, movable property located abroad
Deceased a non-inhabitant, for example a resident of MauritiusDeath transfer duty, at the same rate and with the same exemptionsOnly his or her real estate located in Luxembourg, received in full ownership or usufruct
Gift of a property located in LuxembourgRegistration duty and 1% transcription dutyDeed necessarily executed before a Luxembourg notary
Gift of a property located abroadNo Luxembourg registration dutyNo notarial deed in Luxembourg; the country where it is situated applies its own rules

Exemptions and rate, heir by heir

AED, “Exemptions” and “Tarif” (rates); Guichet.lu, “Identifier les impôts dus en matière de droit de succession” (identifying the taxes due on inheritance). Statutory share: what the heir receives by virtue of his or her status, without a will; non-statutory share: what he or she receives in addition by will or gift. Base rates, increased for any net share above €10,000, up to 22/10 beyond €1,750,000.
HeirStatutory shareNon-statutory share
Direct line: children, grandchildren, parents, grandparentsExempt2.5% on the disposable portion bequeathed by preciput and outside the share, 5% on the remainder
SpouseExemptExempt for estates opened since 1 January 2018; previously 5% with no child or joint descendant
Partner whose declaration has been registered for more than three yearsExemptExempt
Brothers and sisters6%15%
Uncles, aunts, nephews, nieces9%15%
Other persons15%15%

Gifts

AED, “Tarif” (rates) of registration (additional rates included); Guichet.lu, “Faire une donation” (making a gift).
BeneficiaryRateDetails
Direct line1.8%2.4% if the gift is made with exemption from collation
Spouse; partner registered for more than three years4.8%—
Brothers and sisters6%—
Other persons8.4% to 14.4% depending on the relationshipReal estate in Luxembourg: 1% transcription duty in addition

No estate treaty

The 1995 treaty covers only taxes on income and on capital: no text settles double taxation of estates between Luxembourg and Mauritius, which the absence of Mauritian duties makes less of an issue.

Becoming a non-inhabitant changes everything

Once resident in Mauritius, your accounts and securities escape Luxembourg duties; only Luxembourg real estate remains caught. You must also keep neither domicile nor seat of wealth in Luxembourg. For a death in Mauritius, the declaration must in principle be filed within twenty-four months (law of 27 December 1817).

Preparing the transfer

With a notary in Mauritius and a notary in Luxembourg. A gift of real estate in Luxembourg City also bears a municipal tax equal to 50% of the registration duties. Westimmo works with notaries who comply with Mauritian law.

12 Wealth

Is there a wealth tax?

Not for an individual: Luxembourg abolished the net wealth tax for individuals, resident or not, on 1 January 2006, and Mauritius levies none. It does remain for Luxembourg companies.

Individuals

No wealth tax in Luxembourg since 2006 (ACD), nor in Mauritius.

Companies

A Luxembourg company remains subject to corporate net wealth tax; the treaty covers it (art. 2) and governs its allocation (art. 23).

A Mauritian subsidiary

Shares in a Mauritian company held at 10% or more since the start of the financial year are exempt from Luxembourg net wealth tax, if it is subject in Mauritius to a tax equivalent to at least 15% calculated under Luxembourg law (art. 24, 3, d).

13 On departure

Does leaving Luxembourg trigger taxation?

For business assets, yes: their transfer abroad is treated as a disposal (L.I.R., art. 38). For private assets, Luxembourg law does not provide here for immediate general taxation of all your assets on the sole ground of departure. Some capital gains may nevertheless remain taxable after departure, notably those on a substantial shareholding where the conditions of article 156 L.I.R. are met, subject to the applicable tax treaty.

A. Business assets

The transfer abroad of assets that make up a business, a permanent establishment or individual assets of the invested net assets is treated as a disposal, notably when the operator moves his or her tax domicile or habitual abode to another State; assets that remain attached to a permanent establishment in Luxembourg, at their book value, are excepted. Price used: the estimated realisable value (L.I.R., art. 38, 1 and 2).

B. Private assets

Departure does not, by itself, trigger taxation of all your private unrealised capital gains. What the law targets are gains realised after departure, under the precise conditions of article 156, 8°, of the L.I.R.

The conditions of article 156, 8°, b

Substantial shareholding: more than 10% of the capital, alone or with your spouse or partner and minor children, directly or indirectly, at any time in the five years preceding the sale (art. 100, 2); in a company whose registered office or central administration is in Luxembourg; residence in Luxembourg for more than fifteen years; departure less than five years before the sale. Units of UCIs in corporate form, SICARs and SPFs are excluded (art. 156, 8°, c).

And within six months

A substantial shareholding in a Luxembourg company sold within six months of acquisition is also caught by domestic law, whatever the length of residence (art. 156, 8°, a).

The effect of the Luxembourg–Mauritius treaty

These domestic rules apply subject to the treaty. Gains on shares are taxable only in the seller’s State of residence (art. 13, 4): as a resident of Mauritius within the meaning of article 4, you are no longer taxable in Luxembourg on this capital gain, and Mauritius does not tax it. Assets attached to a permanent establishment in Luxembourg remain taxable there (art. 13, 2). The MLI anti-abuse clause (art. 7) may deny the benefit if the principal purpose of the departure was to obtain it.

The year of departure

Taxation may be assessed during the year (L.I.R., art. 117, 2) and a business’s profit is closed off on the day of the change (art. 16, 2). Take stock before leaving: the departure date, the sale date and the proof of your residence in Mauritius decide the tax.

14 Transferring your money

How do you transfer your assets and manage your accounts?

No exchange controls in Mauritius since July 1994: money moves freely, but the bank and the notary check its origin. As a Luxembourg resident, the income from your Mauritian accounts is declared in Luxembourg.

Opening an account in Mauritius →

No exchange controls

According to the Bank of Mauritius, they were abolished in July 1994. Prepare evidence of the origin of the funds: sale of a property, savings, inheritance.

Your accounts in Mauritius

As a Luxembourg resident, you declare their interest and dividends in your tax return (form 100), under income from movable capital. Their data are also transmitted under the CRS.

Your Luxembourg accounts

You may keep them. Once you are a non-resident, the 20% final withholding on interest no longer applies to you; this interest falls to Mauritius (art. 11).

15 Returns

Which returns in the year of departure, then every year?

In Luxembourg, you declare your income for the year of departure, then, as a non-resident, income not subject to withholding: rent, real estate capital gains. In Mauritius, you declare your income to the MRA by 15 October.

Filing when you arrive in Mauritius →
L.I.R., art. 117 and 157; ACD, non-resident FAQ; Guichet.lu; MRA, individual return guidance notes.
WhenIn LuxembourgIn Mauritius
The year of departureIncome for the year; taxation may be assessed during the year (art. 117, 2)Tax account number (TAN) with the MRA; income year from 1 July to 30 June
Following yearsNon-resident return (form 100) if you have rent, a capital gain or other income without withholding, by 31 December of the following year at the latestReturn and payment by 15 October at the latest
Sale of a property in LuxembourgReturn with annex 700, even for an exempt main residence—

Pension and dividends

Subject to withholding at source, they in principle require no return from a non-resident: the withholding is final taxation (L.I.R., art. 157, 3), unless treatment as a resident is requested.

Proof of your residence

To benefit from the treaty, prepare proof of your Mauritian residence: MRA tax residence certificate, lease or deed, residence permit.

In Mauritius

A new arrival obtains a tax account number (TAN) from the MRA; the return for the year ended 30 June is due by 15 October at the latest, payment included.

16 Exchange of information

What do the Luxembourg and Mauritian authorities share?

On request, any information that is foreseeably relevant, bank secrecy included, under article 27 arising from the 2014 protocol. And automatically, financial account data under the OECD CRS.

On request

Article 27: information foreseeably relevant to the treaty or to taxes of every kind; a State may not refuse on the ground that it is held by a bank or a fiduciary (art. 27, 5).

Automatically

Luxembourg applies the CRS (law of 18 December 2015) and counts Mauritius among its partner jurisdictions (Grand-Ducal regulation of 6 June 2025). Mauritian banks report non-residents’ accounts to the MRA every year.

What this changes

The Mauritian account of a Luxembourg resident is known to the Luxembourg authorities: its income must appear in the return.

17 Practical cases

Three common situations

The rules above applied to three profiles we often meet: a retiree settled in Mauritius, a couple who stayed in Luxembourg and let their villa, an entrepreneur who leaves with his shareholding.

Private-sector retiree settled in Tamarin

Her CNAP pension remains taxed in Luxembourg only, by withholding; her occupational supplementary pension falls to Mauritius. Her flat in Luxembourg City, let out, remains taxed in Luxembourg; on her death, her children receive their statutory share of that flat without death transfer duty; whatever a will gave them in addition would be taxed at 2.5% or 5%, before surcharge.

Luxembourg couple, villa let in Grand Baie

Net rent of Rs 2,000,000: Rs 250,000 of tax in Mauritius. In Luxembourg, rent exempt but taken into account for the rate. On their death, the villa does not enter the Luxembourg estate, and Mauritius levies no duty.

30% partner in a Luxembourg SARL, resident for twenty years

Genuinely settled in Mauritius, he sells his shares three years later: the “15 years / 5 years” rule would catch the sale, but the treaty reserves the gain to Mauritius (art. 13, 4), which does not tax it. A move whose only purpose was to avoid tax would fall under the anti-abuse clause.

19 Sources & methodology

Reliable, up-to-date information

Each rule comes from the treaty, a legal text or an official page of the Luxembourg or Mauritian authorities, read on 28 September 2026.

ACDDirect taxation, LuxembourgAEDRegistration and estatesMRAMauritius Revenue AuthorityTreatyLuxembourg–Mauritius, 1995
  • Luxembourg–Mauritius Treaty of 15 February 1995 and protocol of the same date: Government Notices 1995 (Mauritius), text published by the MRA
  • Protocol signed in Brussels on 28 January 2014: taxes covered, arbitration, exchange of information (MRA; Mémorial A No. 232 and No. 247 of 2015)
  • MRA — consolidated text of the treaty as amended by the MLI, prepared with the competent authorities of both States (30 November 2020); list of treaties in force
  • Administration des contributions directes (ACD) — “Conventions en vigueur”: publication in Mémorial A No. 24 of 1996, applicable from 1 January 1996
  • Amended law of 4 December 1967 on income tax (L.I.R.), consolidated text in force on 1 January 2026 published by the ACD: art. 2, 16, 38, 99bis, 99ter, 100, 115, 117, 118, 134, 142, 148, 156 and 157
  • ACD — “Résident / non-résident”, non-resident FAQ, tax assimilation (art. 157ter), exemption method, withholding tax rates, net wealth tax
  • Guichet.lu — capital gains on shares and shareholdings, sale of a property, interest and final withholding, dividends, statutory pension, gifts
  • Indirect taxation portal (AED) — estates, exemptions and rates; law of 27 December 1817 on the collection of inheritance tax; registration duty rates
  • Law of 18 December 2015 on the Common Reporting Standard and Grand-Ducal regulation of 6 June 2025 (Legilux): partner jurisdictions
  • Finance Act 2026 (Mauritius), art. 7(v); Income Tax Act, Second Schedule, Part II; MRA: Foreign Income, Exempt Income, Tax Deduction at Source
  • Bank of Mauritius: exchange controls abolished in July 1994; indicative rates of 21 September 2026: €1 = Rs 53.8912 buying by transfer

Texts read and checked on 28 September 2026. This guide sets out the rules of both countries; it does not replace the advice of a tax adviser, in Luxembourg as in Mauritius, on your situation.

20 Frequently asked questions

Your questions on taxation between Luxembourg and Mauritius

Short answers, backed by official texts.

Frequently asked questions: Luxembourg ↔ Mauritius