Monaco citizenship: who can become Monegasque, and can it be bought?
Written by Élodie Marchal, Residence and relocation lead. Reviewed by Camille Perrin. Updated 20 September 2026. Reading time 11 minutes.
Short answer
Monaco sells no citizenship. Loi n° 1.155 of 18 December 1992 provides three ways to acquire the nationality: declaration (adoption or marriage), naturalisation and reinstatement. Naturalisation needs ten years of habitual residence after eighteen and is granted by sovereign ordinance, at the Prince's discretion. No investment, deposit or donation appears anywhere in the act.
On this page
- Can you buy Monaco citizenship?
- Which law governs the nationality
- The four routes, in one table
- Are you already Monegasque?
- Naturalisation, step by step
- Nationality by marriage
- Every period the act publishes
- Dual citizenship, in four faces
- Loss and withdrawal
- What it changes for a founder
- What no official source publishes
- From our practice
- Sources
- Frequently asked questions
- Planning the move itself
Can you buy Monaco citizenship?
Whether Monaco sells citizenship by investment is settled by reading the act rather than the brochures. Loi n° 1.155 of 18 December 1992 has three acquisition sections, declaration, naturalisation and reinstatement, and names no investment, no deposit, no donation, no fee and no amount in any of its twenty-two articles. The statute provides no such route. Nor does it ban one: there is nothing of the kind in the text to buy or to forbid, which is a duller answer than a prohibition and a more durable one.
Most readers arrive looking for the other thing. Ten years of habitual residence open the right to ask for naturalisation (Art. 5) and nothing more, so the document a foreign founder actually obtains is a residence card, and the route to it is set out in the residency guide. Nationality sits at the far end of a decade lived in the Principality, and the answer to it belongs to the Sovereign Prince.
The EUR 500,000 that travels with this query belongs to a bank, not to the State, and it belongs to a residence file, not to a nationality one. The Government's own words on the residence application are that the sum treated as sufficient "dépend de l'établissement bancaire de Monaco qui fournira une attestation", it depends on the Monegasque bank that will provide the attestation (Demander une carte de séjour, accessed 6 September 2026). No State minimum exists for either.
Which law governs Monegasque nationality?
Loi n° 1.155 du 18 décembre 1992 "relative à la nationalité" is the governing text. It was published in the Journal de Monaco of 25 December 1992 and carries twenty-two articles plus an Art. 21-1, and every rule below is quoted from its consolidated version as it stands today. The present wording of Arts. 1, 3, 5, 6 and 7 is the work of five later acts, the most recent being Loi n° 1.512 of 3 December 2021, and the amendment notes to the act.pdf) record each of them.
Loi n° 572 of 18 November 1952 is not the nationality law, although it is still cited as one. Art. 22 of the 1992 act repealed its Arts. 1, 2, 3 and 7, and what survives on its own page is a residual shell of three articles. There is a second reason this guide quotes the statute and not an explainer: the Government's nationality page carries the 2022 marriage rule correctly in its body, while its own list of legal references stops at 2011.
The four routes to Monegasque nationality
Nationality by origin is not a route at all, it is a starting state: a person either holds it from birth or does not. Acquisition afterwards happens in the four ways the table sets out, each granted by a named instrument, and there is no fifth. No route in the act carries a price, a deposit or a donation.
| Route | Statutory basis | Who qualifies | How it is granted |
|---|---|---|---|
| By origin (not an acquisition) | Art. 1, six cases | filiation in five of the six cases; a child born in Monaco of unknown parents in the sixth | by operation of law, from birth |
| Adoption | Art. 1 last paragraph; Art. 2, with Art. 4 first paragraph | plenary adoption follows filiation; a foreigner under eighteen adopted by simple adoption | by operation of law, or by declaration |
| Marriage | Art. 3, with Art. 4 | a spouse married to a Monegasque for twenty years, ten if the marriage was celebrated before 1 July 2022 | by declaration, transcribed by the civil-status officer |
| Naturalisation | Arts. 5 and 6 | a foreigner with ten years of habitual residence after the age of eighteen, or anyone the Prince judges worthy without that period | by sovereign ordinance, at the Prince's discretion |
| Reinstatement | Art. 7 | a person who has lost the Monegasque nationality | by sovereign ordinance |
Are you already Monegasque? Nationality by origin
Read Art. 1 before anything about naturalisation: a good number of families discover they never needed a route at all. The article lists six cases, all but one turning on descent, and the ones below are the cases that decide a foreign family's position.
- 1°: a person born of a Monegasque father, with one exclusion below.
- 2°: a person born of a mother born Monegasque who still held that nationality on the day of the birth.
- 4°: a person born of a mother who became Monegasque under Art. 6 al. 2 or Art. 7 al. 4.
- 6°: any person born in Monaco of unknown parents, "née à Monaco de parents inconnus".
- Plenary adoption follows filiation; a minor adopted by simple adoption acquires by declaration (Arts. 1 and 2).
- The exclusion: a father who acquired the nationality by the Art. 3 marriage declaration does not transmit it.
- The same follows for such a mother from the list itself, which is our reading of Art. 1 rather than a quotation.
- Neither birth nor residence in the Principality creates a right to the nationality.
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3 declaration: does not transmit" and "birth or residence in Monaco alone: no right". End states "Monegasque by origin" and "not by origin
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see the four routes"
Figure 1. The cases of Art. 1, and the two exclusions no competitor page prints
The last item is how the Government's nationality page summarises the position, and the rule itself sits in Art. 1: the cases are closed, and nothing outside them makes a person Monegasque by origin. The consolidated text carries no condition about wedlock, and the child born in Monaco of unknown parents is Monegasque whatever a competitor's summary says.
Naturalisation: ten years, an inquiry and a sovereign ordinance
1. Ten years of habitual residence, after eighteen. Art. 5 opens with the only qualifying test the act contains: "une résidence habituelle de dix années dans la principauté après qu'il ait atteint l'âge de dix-huit ans". No day count, no attendance formula, nothing beyond the word habituelle.
2. What the decade actually produces. Ten years of effective residence can bring the carte de résident privilégié, the privileged resident card, valid ten years (La carte de séjour, accessed 6 September 2026), issued under Ordonnance Souveraine n° 3.153 du 19 mars 1964. A card, not a nationality.
3. The request, which is not described anywhere. Art. 5 says who may ask. How to ask is not published: no official source we read gives a form, a document list, a fee, a stamp or an address, and Arts. 3 and 4 refer conditions to a sovereign ordinance whose number we could not locate. So this guide describes no file.
4. Examination. The Government's nationality page states that the Department of Justice examines applications for naturalisation and presents a report to the Sovereign Prince. No period is published for that examination, by the statute or by the Government.
5. The decision. Art. 5 al. 2: naturalisation "est accordée par ordonnance souveraine après enquête sur la moralité et la situation du postulant", and on proof that it would make the applicant lose his previous nationality and free him definitively from military obligations abroad. The Government publishes three criteria it says are generally applied: family ties to the Monegasque community, integration into the economic, social or cultural life of the Principality, and being judged worthy of the favour by the Prince. Those are published criteria, not statutory conditions.
6. Consultation of the French authorities. The Government's nationality page states that they are consulted on every application the Prince has viewed favourably, before the sovereign ordinance is published. Again, no period.
7. Six months, a waiver and the children. Where the applicant's own law does not let him lose his nationality first, Art. 5 al. 3 gives six months from publication of the ordinance to prove the loss; failing that he, and the children who take their nationality from him, are "réputés n'avoir jamais été monégasques". Art. 6 lets the Prince naturalise "sans condition de stage" anyone he judges worthy, which waives the ten years and says nothing at all about the previous nationality. Minor children become Monegasque with the parent and may decline within the year following their majority.
Steps 3 to 6 carry no published period, in the act or on the Government's pages, and this guide borrows none from anybody else.
Can you get Monegasque nationality by marriage?
1. Twenty years from the wedding, not ten. Art. 3 gives the declaration "à l'expiration d'un délai de vingt ans à compter de la célébration du mariage": twenty years counted from the celebration of the marriage, not from a residence permit and not from a move.
2. The exception is dated. The period is ten years where the marriage was celebrated before 1 July 2022, under Art. 5 of Loi n° 1.512 of 3 December 2021, which is the act that replaced ten with twenty. The date is recorded in the editorial notes to Art. 3.pdf).
3. Four conditions, none of them residence. At the date of the request: shared life with the Monegasque spouse has not ended, widowhood without remarriage excepted; that spouse did not himself acquire the nationality through an earlier marriage; the acquisition must not cost the declarant the nationality of origin under a foreign law or a treaty; and the Monegasque spouse still holds his nationality. It follows from the third condition, as a consequence of the text rather than a quotation, that the route is closed to a spouse whose own country strips nationality from anyone who voluntarily takes another.
4. The declaration, and an undertaking that runs the other way. It is made before the officier d'état civil, the civil-status officer, and Art. 4 al. 2 requires the declarant to state that he undertakes "à ne pas renoncer à sa ou ses nationalités d'origine". Breaking that undertaking is punished under Art. 21-1 by the penalties of Art. 103 of the Penal Code, a text this guide names and does not quantify.
5. Two months, then twelve. The officer transcribes a declaration that satisfies the act within two months of its filing, and the nationality runs from the transcription (Art. 15). A refusal is notified, and the applicant has twelve months to go to the tribunal de première instance sitting in chambers (Art. 17).
6. What marriage does not do. Marriage by itself changes nobody's nationality: a Monegasque woman who marries a foreigner keeps hers unless she expressly declares otherwise (Art. 9). And a father who became Monegasque by this route does not transmit the nationality to his children (Art. 1, 1°).
Moving to Monaco for the business, not the passport?
We prepare and steer company files and residence files. A naturalisation is the Prince's decision, and nobody prepares, sponsors or accelerates one.
Every period the nationality act publishes, and the one it does not
The act times the declaration route closely and the naturalisation route not at all. There is no published period for the request, the examination or the decision of a naturalisation, in the statute or on the Government's pages. Intermediaries fill the gap with "up to one year", "a year or more" and "3 to 5 years of processing", figures that disagree with each other and belong to the sites that publish them. Nothing in the act has retroactive effect (Art. 13).
| Period | What it runs on | Article | Who runs the clock |
|---|---|---|---|
| Twenty years, or ten | from the celebration of a marriage; ten if celebrated before 1 July 2022 | Art. 3; Loi n° 1.512 Art. 5 | the applicant, by waiting |
| Two months | to transcribe a declaration that satisfies the act | Art. 15 | the officier d'état civil |
| Twelve months | to appeal a refusal to transcribe | Art. 17 | the applicant, before the court |
| One month | to challenge a transcribed declaration | Art. 18 | the procureur général |
| Six months | to oppose the acquisition after the transcription | Art. 19 | the Prince, after the Conseil d'État |
| Six months | to prove the loss of the previous nationality, after publication | Art. 5 al. 3 | the new national |
| One month | to file observations against a withdrawal | Art. 10 | the person concerned |
| Five years | during which a naturalisation may be withdrawn | Art. 10 | the State |
| Naturalisation: request, examination, decision | no period published, anywhere | none | nobody publishes it |
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twenty years (ten before 1 July 2022) to the declaration
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then two months to transcribe
- 03
one month for the procureur général
- 04
six months for the Prince to oppose
- 05
twelve months to appeal a refusal. Track B
- 06
naturalisation: ten years of habitual residence
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then three spans drawn as grey hatching with no length and the label "no period published" for the request
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the examination and the decision
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then six months to prove the loss and a five-year window of possible withdrawal. The hatched spans must not be drawn to any scale a reader could measure
- 10
and neither track shows a total
Figure 2. The declaration route is timed to the month; the naturalisation decision is timed nowhere
Does Monaco allow dual citizenship?
The answer that ranks is a slogan, and the answer in the act has four faces. One correction runs through all of them. The Government's nationality page puts the condition as a renunciation already made, while Art. 5 asks for proof that the naturalisation would make him lose the previous nationality, and its third paragraph gives six months after publication of the ordinance to prove that loss. The statute controls, and the difference decides real files.
| Situation | What happens to the other nationality | Article |
|---|---|---|
| Ordinary naturalisation | lost: proof that naturalisation would cause the loss, with six months after publication to prove it | Art. 5 al. 2 and al. 3 |
| Acquisition by marriage | kept, and compulsory to keep: the declarant undertakes not to renounce it | Art. 4 al. 2, with Art. 21-1 |
| Held from birth | contemplated: a person may decline or repudiate only if another nationality is acquired or assured | Arts. 11 and 12 |
| A Monegasque naturalised abroad | the Monegasque nationality is lost, on naturalisation abroad or acquisition on request | Art. 8, 1° |
Read together, the act neither forbids dual nationality nor grants it. It asks a different question in each case, and the answer that matters to a naturalisation applicant is whether his own country will release him within six months of an ordinance he cannot date in advance.
Can Monegasque nationality be lost or withdrawn?
The pages that list the benefits of a Monegasque passport tend to stop before this article. Art. 8 and Art. 10 are the reason a guide is worth more than a benefits list.
- Art. 8 sets three grounds of loss, and the first two are voluntary acts of the holder.
- Being naturalised abroad, or acquiring a foreign nationality on request, costs the Monegasque one.
- So does serving in a foreign army voluntarily and without the Government's authorisation.
- A naturalisation may be withdrawn by sovereign ordinance after the Crown Council is consulted (Art. 10).
- Withdrawal runs within the year of a final conviction, or at any time during five years from the naturalisation, on the report of the Director of Judicial Services with the assent of the Conseil d'État; the person has one month to file observations.
- Declining or repudiating the nationality is possible only for someone who holds another (Arts. 11 and 12), and a person who has lost it may be reinstated by sovereign ordinance (Art. 7), on no published criteria and within no published period.
Art. 13 closes the chapter: acquisition, recovery and loss produce effects only for the future. Nothing in this act reaches backwards.
What nationality changes for someone running a company in Monaco
Which is the point of the page for anyone whose real object is a business: you do not need to be Monegasque to own or run a Monegasque company.
What no official source publishes
Every ranking page fills the slots below with a figure, and three of them disagree with each other on the same slot. Here is what we looked at, and what was not there.
- The processing time of a naturalisation request: nothing in the act, nothing on the Government's pages.
- The form of the request, the documents, any fee or stamp, and where it is sent: none of it published.
- The implementing sovereign ordinance that Arts. 3 and 4 refer conditions to: its number was not located.
- The number of Monegasque nationals, and the number of naturalisations granted in a year: no official count was found. Each naturalisation is an ordinance published in the Journal de Monaco, so the count is knowable, and we do not have it.
- The only official population figure we publish is IMSEE's 38,857 residents at the 2025 census, a figure about residents and not about nationals, and the everyday side of it belongs to living in Monaco.
- A language condition: neither the statute nor the Government's page contains one, and this guide neither asserts one nor denies that language matters in practice.
- The passport: issuing authority, validity, fee and any official visa-free list. No official passport page was read, so no number from a vendor index appears here.
- Whether any published decision interprets résidence habituelle: nothing found. The act's words are quoted and the guide stops there.
From our practice
Élodie Marchal, Residence and relocation lead. The question I am asked most on this subject is whether ten years in Monaco end in a passport, and the honest answer is that they end in a card and a right to ask. What we prepare is the carte de séjour file and the French type D visa step that precedes it for non-EU founders: the accommodation evidence, the means-of-existence evidence, the Sûreté Publique appointments. We say at the outset that a naturalisation is the Prince's decision, that we do not file, sponsor or accelerate one, and that nobody can.
Sources
The statutes first, then the Government's French pages, each with the date it was read or accessed.
- Loi n° 1.155 du 18 décembre 1992 relative à la nationalité, consolidated, Arts. 1 to 22 and Art. 21-1, read 19 September 2026.
- The same act with its amendment and editorial notes.pdf), for the five amending acts and for Loi n° 1.512 of 3 December 2021, read 19 September 2026.
- Loi n° 572 du 18 novembre 1952, cited only as the residual act it is, read 19 September 2026.
- Ordonnance Souveraine n° 3.153 du 19 mars 1964, the statutory basis of the residence cards, read 19 September 2026.
- Loi n° 1.144 du 26 juillet 1991, Arts. 2 and 5, read 19 September 2026.
- La carte de séjour, the privileged resident card at ten years, accessed 6 September 2026.
- Demander une carte de séjour, the bank attestation, accessed 6 September 2026.
- Introduction à la création d'activité, the SAM, SCA and regulated-activity exception, accessed 6 September 2026.
- La fiscalité monégasque, the income-tax position of nationals and residents, accessed 6 September 2026.
- Recruter du personnel, the hiring priority principle, accessed 6 September 2026.
- IMSEE, 38,857 residents at the 2025 census, read 19 September 2026.
- Named without a link: the Government's nationality page, which the project holds only in its English version. Rows drawn from it are attributed in words and nothing on this page is quoted from it; the French original has not been read.
Planning the move itself
Answered with the article
+ Can you buy Monaco citizenship, or get it by investment?
No. Loi n° 1.155 of 18 December 1992 has three acquisition sections, declaration, naturalisation and reinstatement, and names no investment, deposit, donation or amount in any of its twenty-two articles. The statute provides no such route, and no Monegasque text describes a programme of that kind.
+ Do you need EUR 500,000 to become a citizen of Monaco?
No. There is no State minimum for nationality, and none for residence either. The figure comes from the residence file, where the Government says the sum treated as sufficient depends on the Monegasque bank that issues the attestation. Nationality carries no financial condition at all.
+ How much does Monaco citizenship cost?
No official amount was located: not a fee, not a stamp, not a duty. The statute sets none and the Government publishes none. Our own services are priced on request and are beside the point here, because we do not file naturalisation requests and neither does any other provider.
+ Can a foreigner become a citizen of Monaco, and is it hard?
Legally yes, by naturalisation after ten years of habitual residence completed after the age of eighteen (Art. 5). The grant is discretionary, made by sovereign ordinance after an inquiry into the applicant's character and situation. Any figure for how often it happens is an intermediary's, not the Government's.
+ How many years do you have to live in Monaco before you can ask for naturalisation?
Ten years of résidence habituelle, habitual residence, completed after the age of eighteen, under the first paragraph of Art. 5. The act sets no day count and no continuity formula beyond that phrase, and the ten years open the right to ask rather than a right to the nationality.
+ Who decides on a naturalisation request?
The Sovereign Prince, by sovereign ordinance (Art. 5). The Government's nationality page states that the Department of Justice examines the file and reports to the Prince, and that the French authorities are consulted on every application he has viewed favourably, before the ordinance is published.
+ Does Monaco allow dual citizenship?
In four different ways, depending on the route. It is lost on ordinary naturalisation (Art. 5), compulsory to keep on the marriage route (Art. 4), contemplated from birth (Arts. 11 and 12), and lost by a Monegasque who is naturalised abroad or acquires a foreign nationality on request (Art. 8, 1°).
+ Do you have to give up your current passport to become Monegasque?
The statutory test is proof that the naturalisation would make you lose it (Art. 5, second paragraph). Where your own law does not let you lose it beforehand, the third paragraph gives six months from publication of the ordinance to prove the loss, failing which you are deemed never to have been Monegasque.
+ Can you get Monaco citizenship by marrying a Monegasque, and after how long?
Twenty years from the celebration of the marriage (Art. 3), ten only where the marriage was celebrated before 1 July 2022. The four conditions test shared life and the spouses' nationalities, not residence, and the declarant undertakes not to renounce his or her own nationality.
+ Does a baby born in Monaco automatically become a citizen?
Only a child born in Monaco of unknown parents, which is the sixth case of Art. 1. Otherwise the nationality passes by filiation under the other cases of the same article, and neither birth nor residence in the Principality creates a right to it.
+ Is a Monaco residence card the same as citizenship, and does ten years of residence give a right to a passport?
No. Ten years of effective residence can produce the carte de résident privilégié, valid ten years, which is a card and not a nationality. Monaco has no permanent residency. What that decade of living there costs is a separate question, answered in cost of living in Monaco.
+ Do you have to spend six months a year in Monaco to qualify?
The nationality act contains no day count. Its only six-month periods run after a decision: the window to prove the loss of a previous nationality (Art. 5) and the Prince's opposition period (Art. 19). The 183 days in circulation belongs to the tax residence certificate, a different document entirely.
+ Can Monegasque nationality be lost or withdrawn?
Yes. Art. 8 sets three grounds of loss, and Art. 10 lets a naturalisation be withdrawn by sovereign ordinance after the Crown Council is consulted: within the year of a final conviction, or at any time during five years, the person having one month to file observations.
+ Can a US citizen become a citizen of Monaco?
The act makes no distinction by nationality: the same ten years, the same discretion, the same proof that naturalisation would cost the previous nationality. What a foreign law demands before it releases its own national is a question for that country's authorities, not for Monegasque law.
+ Does a Monegasque passport change my tax position, or do I need one to run a company in Monaco?
No to both. The Government states that Monegasques and residents alike sit outside income tax, French nationals under the 1963 convention excepted, and only where they are genuinely established in the Principality. A foreign national runs a Monegasque company on an authorisation, not on a passport. ---
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