When someone starts sex work in Ticino, they end up holding two very different pieces of paper in their hands. One is a number from the cantonal police. The other is a municipal ordinance that no one mentioned and that you have to find yourself. The number says that you’re registered. The municipal ordinance says whether the place where you want to work is even an option. Only both together answer the question that matters in practice: Am I allowed to work here, in this building, at this address, legally?
The canton of Ticino is one of the Swiss cantons with its own prostitution law. That’s an advantage — the rules are written down instead of being scattered across ten different ordinances. But it also leads to a misconception: that cantonal registration settles the matter. It doesn’t. The real map is drawn by the municipalities, and they draw it very differently. In Chiasso it comes down to seven parcels. In Mendrisio to radii of 100 and 300 meters. In Lugano to a building permit that can fail because of the residential component of a building.
This text quickly runs through the cantonal level and then spends most of its time where decisions are actually made. The basics of the law itself — registration procedures, housing rules, authorities — are presented in more detail in our overview of Ticino’s prostitution law.
The cantonal level: one law, one register, one number
The Legge sull’esercizio della prostituzione (LProst, Systematic Collection of the Canton of Ticino 550.500) of January 22, 2018, in force since July 1, 2019, is authoritative. It replaced the older law of 2001. It is supplemented by the Regolamento sull’esercizio della prostituzione (RProst, 550.510), which contains implementation details.
Responsible is the Dipartimento delle istituzioni, specifically the cantonal police with their Sezione TESEU. This is the body that actually exists in Ticino for sex work — unlike in cantons where you have to piece together responsibility from several offices.
Registration with TESEU
Anyone in Ticino who practices or wants to practice sex work must register immediately with the cantonal police. Registration must be done in person: You appear at the Sezione TESEU, the form is completed and signed there, your ID is checked. Only after this check is the registration valid, and the person receives their own TESEU number. Current address and opening hours are listed on the „Annuncio esercizio della prostituzione“ page of the cantonal police website on ti.ch — a call or email beforehand saves an unnecessary trip.
You can register if you meet one of three requirements:
- Swiss citizenship, or
- a valid foreign residence permit that allows employment, or
- a valid registration as a self-employed service provider under the 90-day notification procedure for EU/EFTA members.
The third point is regularly misrepresented in forums, so to be precise: The notification procedure under the Free Movement Agreement allows EU/EFTA citizens to work for up to 90 days per calendar year without a permit. In the sex industry, however, the stricter rule applies: notification is required from the first day of work, not after eight days as in many other sectors. Registration is done through the online portal of the State Secretariat for Migration, and the cantonal contact point for this is the Sezione del lavoro (Ufficio della manodopera estera). This federal registration and the TESEU registration are two separate processes — one does not replace the other.
What else registration triggers
Two things are noteworthy. First, at the moment of registration, each person is entitled to a free medical consultation on prevention questions. This is an offer, not a requirement, and it costs nothing.
Second — and this is often overlooked — registration is not purely internal to the police. If an apartment is registered as a workplace, the Sezione TESEU shares this registration with the responsible municipality and the property owner. This is the system logic of Ticino’s law: the canton registers, the municipality checks the building and zoning aspects, the owner is informed. Anyone who doesn’t factor this chain into their plans will be surprised by the call from the administration.
Only two permissible work locations
The LProst recognizes exactly two legal arrangements: the licensed erotic establishment and the registered apartment.
The licensed locale erotico
An erotic establishment may only be opened and operated with prior authorization from the responsible department. The license is issued to a gestore — the responsible natural or legal person — who must meet personal requirements: integrity, in the case of foreign nationality a permit allowing employment, plus trade register and debt collection extracts. The building permit for the premises and compliance with health regulations are also checked.
The gestore is not a figurehead: they must be physically present in the business full-time, they are personally liable for ancillary activities related to the business, and they must ensure that all present persons are properly registered. A fee is charged for issuing the license (stated as 350 francs), and decisions on issuing, refusing, renewing, or revoking are subject to a cost fee ranging from 50 to 1,000 francs. The binding rates are listed in the RProst and at the cantonal police.
The registered apartment: one person, one building, three months
Anyone who works alone in an apartment where they own or have a right to use, doesn’t need a local license — but does need a notifica appartamento. The conditions are strict and are most frequently violated in everyday practice:
- Only one person may engage in sex work in the apartment. As soon as rooms are shared, you enter the licensing process for erotic establishments.
- There may be only one apartment per building registered for this purpose.
- The contract establishing the right to use — rent or sublet — must be for at least three months.
- Registration is made by the person providing the apartment, presenting a copy of an ID.
The three-month clause is the point where the law and real market developments diverge. Short-term rentals through booking platforms simply don’t meet it — more on this below.
The municipal map: where in Ticino work is actually permitted
The LProst itself prohibits street prostitution in all places where it could disturb public order or peace, in particular outdoors and in publicly visible places, and explicitly near schools, hospitals, nursing and retirement homes, recognized places of worship, cemeteries, public transport stops, publicly accessible buildings, and playgrounds. Added to this is a rule crucial for apartment-based work: in zones that the land-use plan dedicates predominantly to residential use, the practice is prohibited.
And then comes the municipal level. Municipalities can establish further locations and distances where sex work is not permitted through ordinanza municipale. This is precisely where the big differences emerge — a pattern also known from other cantons where the canton regulates little and the municipality ultimately determines location and time.
Chiasso: seven parcels, nothing elseChiasso has chosen the most radical approach: the municipality has restricted sex work to a single sector of the municipal area, the zone amministrativa commerciale intensiva a 7 piani (AC7). A total of seven properties are affected, on which existing businesses are located. The practice is prohibited throughout the rest of the municipal area – including in apartments. The municipal council passed the corresponding change to the zoning plan, which allows existing establishments in this zone to be regularized in the long term and clearly excludes everything outside it.
In practice, this means: in Chiasso, it is not the TESEU number that answers the location question, but the zoning plan. An apartment outside the AC7 is not a legal workplace even if the contract, exclusive use, and three-month period are all correct.
Mendrisio and the Bellinzonese: Rules by Meters
Mendrisio works with distances rather than a zone. The municipal ordinance prohibits the practice within 100 meters of public transport stops during their operating hours and within 300 meters of sensitive locations – playgrounds, public recreational and sports facilities, schools, churches and other places of worship, as well as hospitals. In the Bellinzonese, there is a comparable structure with a radius of 100 meters around sensitive locations and a prohibition in residential zones; smaller municipalities such as Arbedo-Castione and Balerna have also enacted their own ordinances.
When you overlay a map with these radii on a densely built Ticino municipality, you quickly see that little is left. This is no accident, but the intended effect of the instrument. All the more important to demand the currently valid version of the respective ordinanza from the municipal office: these ordinances are revised, and older newspaper reports do not necessarily reflect the current situation.
Lugano: Building Law Decides the Question
Lugano regulates the matter through the Ordinanza municipale sull’esercizio della prostituzione of March 21, 2022 (No. 2.4.5) – and above all through building law. To dedicate a building or part of a building to sex work, a building permit for the change of use is required. This is refused if the residential share in the building in question is 50 percent or more, and also for buildings near sensitive locations. Violations of municipal regulations regarding the location, time, and manner of practice are punished under Art. 199 of the Criminal Code.
This is the most inconspicuous and at the same time most effective hurdle in the entire system. A normal rental apartment in a normal residential building almost always fails – regardless of whether the TESEU registration is clean. Cantons without their own sex industry law reach the same goal through the same lever; Zug, for example, regulates exclusively through the zoning plan, and in Appenzell Innerrhoden the canton is almost completely silent. Ticino therefore differs less in the result than in transparency: at least here it is written who decides what.
Money: the Daily Allowance, AHV, and Taxes
Ticino introduced a solution to an old tax problem in 2019: a flat-rate payment of 25 francs per working day, which is credited as an advance payment against income tax.
The mechanics differ depending on the workplace:
- In the erotic establishment, the gestore collects 25 francs per person and working day and forwards it monthly to the responsible tax authority. The business becomes a collection agency.
- In the registered apartment, the sex worker owes the payment themselves and pays it directly. The person who provides the apartment has no role here and may not deduct the amount in particular.
But the tax question is not settled with this, only provisioned. Sex work in Switzerland is self-employed economic activity, provided one actually works on one’s own account and at one’s own risk. This entails the usual obligations: registration as a self-employed person with the compensation fund for AHV/IV/EO, ordinary income tax according to the annual tax declaration or source taxation depending on residence status, and VAT liability only after reaching the statutory turnover threshold. Whether the compensation fund recognizes the status as self-employed is its own decision – this decision is independent of TESEU registration and must be obtained separately. Binding information on the flat-rate payment and offsetting is provided by the Divisione delle contribuzioni, on social insurance status by the cantonal compensation fund.
The Gray Zone: House Visits and Hotels
A question central to escorts, which Ticino has not fully clarified to this day: may one work at the customer’s home or in a hotel room if the law only mentions licensed establishments and registered apartments as permissible locations?
After the new rules came into force, the authorities assumed this was not permitted and issued fines accordingly. In 2020, a Ticino criminal judge acquitted two women who had worked at customers’ homes or in a hotel and were supposed to each pay 300 francs. The reasoning: the law does not prohibit this. The case triggered a political debate – an FDP member of the Grand Council filed an interpellation, one of the law’s architects admitted that the enforcement rules may have gone beyond the legislator’s intent – while the responsible government councilor maintained that the law was in order.
Important for your own planning: this was a first-instance judgment in an individual case, not settled case law. Anyone in Ticino offering house visits or hotel visits should clarify current practice directly and in writing with the TESEU Section, rather than relying on a six-year-old newspaper article. Fines range under the legal framework between 200 and 40,000 francs – the scope is too wide to test your luck.
What the Numbers Show
The statistics of the TESEU Section paint a clear picture of regulations that reality is outpacing.
Registrations are rising: 219 new registrations in 2022, 284 in 2023, 352 in 2024, with further growth in 2025. At the same time, violations are rising even faster: 50 cases of unlawful practice in 2022, 59 in 2023, 149 in 2024 – nearly a tripling in two years. In 2024, 128 people were reported to the prosecutor’s office for working at or providing unlicensed locations; around eighty of these cases involved temporarily rented apartments.
The reason is structural, not criminal: the scene has moved out of establishments into apartments. Around 2008 there were still around 35 erotic businesses and over 600 registered people; today there are nine licensed establishments and about 200 legally active people. By the end of 2024, depending on the reference date, 21 to 24 apartments were properly registered – while a search of Ticino erotic portals found around a hundred active apartments. The three-month rule and the principle of „one apartment per building“ simply do not fit an offering that operates through short-term rentals and weekly rotation.
For individuals, this means two things. First: control density is increasing, and the focus is precisely on temporarily rented apartments. Second: anyone who is properly registered stands out in a market that is increasingly operating in the illegal area – with all the blackmail and lack of police protection that entails.
Advice: Where to Turn
Ticino has a specialized contact point that is not part of the police. Primis – a service of Zonaprotetta, active since 2006 – offers sex workers in the canton health, social and legal counseling, with cultural mediators for women without Italian language skills. The counseling office is located at via Bagutti 2 in Lugano and holds open office hours without appointment on Wednesday afternoons from 2 to 5 p.m. The name stands for prevenzione, informazione e mediazione nell’industria del sesso.
For sexual health, the Consultori di salute sessuale of the Ente Ospedaliero Cantonale in Bellinzona, Locarno, Lugano and Mendrisio are also available; counseling is confidential. In addition, there is free medical counseling offered as part of the TESEU registration.
The Order That Works
Anyone in Ticino who wants to start clean is best to proceed backwards – from location to registration, not the other way around:
- Clarify status. Swiss passport, residence permit with work authorization, or 90-day registration as a service provider? Without one of these fundamentals, TESEU registration is not possible at all.
- Municipality first. Request the applicable ordinanza sull’esercizio della prostituzione and the zone assignment for the specific address from the municipal office. This information determines whether everything else is even worthwhile.
- Check building and zoning law. Does the planned use require building permission or notification of a change in use? How high is the residential portion of the building?
- Structure the contract appropriately. Minimum three-month term, sole use, no second registered apartment in the same building.
- Make registrations. In person at the Sezione TESEU for your own registration, plus the notifica appartamento by the person providing the space.
- Set up finances. Registration with the compensation fund, clarification of the flat-rate levy and its settlement with the tax authority, clean record-keeping of working days.
Conclusion
Ticino has a law, a register and a clearly designated authority – significantly more structure than many German-speaking cantons offer. But the cantonal registration is only half the answer. Whether an address works is decided in Chiasso at seven parcels, in Mendrisio at radii of 100 and 300 meters, in Lugano by the residential portion of a building. The increase in violations in recent years is explained less by disregard than by the gap between a regulatory framework designed for fixed locations and three-month contracts, and a market that moves in weekly rhythms.
Anyone who wants to deal with this starts at the municipality and not with an ad. And anyone who needs a binding answer gets it where it applies: at the municipal office for zones and building law, at the Sezione TESEU of the cantonal police for registration and work locations, at the compensation fund and the Divisione delle contribuzioni for social insurance and taxes. For everything that gets lost between the offices, Primis in Lugano is the place that listens without lecturing.