Most texts about sex work in Ticino revolve around places: which zone, which radius, which municipality. That’s understandable, because the canton is indeed strict in this regard. But for the person who wants to start tomorrow, something else comes first – namely a visit to a counter, a number, a receipt, and an amount that accrues every day from the first day of work.
This text takes up exactly this thread: registration with the cantonal police, the amounts that become due, and the question of which offices want something from you afterwards. For anyone who wants to know where in the canton you’re actually allowed to work, that’s described in more detail in the articles on the municipal map with Chiasso and Mendrisio and the „one apartment, one person“ rule.
A Canton with Its Own Law – and a Single Point of Contact
Ticino is among the minority of cantons with its own sex work law. The Legge sull’esercizio della prostituzione (LProst, RS/TI 550.500) dates from January 22, 2018 and has been in force since July 1, 2019; there’s also the implementing regulation RProst (550.510) from June 5, 2019. Responsibility lies with the Dipartimento delle istituzioni, operationally with the cantonal police and their TESEU section – the unit that also handles human trafficking, promotion of prostitution, and usury.
This is the biggest practical difference from cantons without their own law. In Canton Zug, regulation effectively runs through the zoning plan, and in Glarus you have to piece together the responsibilities from several offices yourself. In Ticino, by contrast, there’s a clearly named office, a defined process – and in return, a registration requirement that you can’t avoid without committing an offense.
The fine framework of the LProst ranges from CHF 200 to CHF 40,000. This isn’t a theoretical value: violations are reported to the Ministero pubblico, and the figures have risen significantly in recent years (more on that below).
The Visit to the TESEU Counter: Registration (annuncio)
Registration is in person. According to the cantonal police, you must appear in person at the TESEU section; there your registration is recorded and signed. It only becomes valid after identity verification and authentication by the police, who issue you a unique TESEU number. In daily life, this number is proof that you’re registered – in a check at the establishment, in your apartment, or with the operator.
What’s involved concretely:
- Fee: When signing the registration at the TESEU counter, according to cantonal information a fee of CHF 100 must be paid.
- Deadline: The law requires registration „without delay“; the administrative information specifies formalization within two working days at the latest or on the first working day after holidays. Anyone who registers after starting work operates unregistered in the meantime.
- Health Consultation: At the moment of registration, free medical consultation is offered. It’s an offer, not an admission test – there’s no „health certificate“ as a work requirement in Ticino.
- Changes and Cessation: Any change in registered data must be reported to the TESEU section in a timely manner. Anyone who ends the activity must revoke the registration at the counter – it doesn’t simply expire.
Who Can Register at All
Registration is not a substitute for foreign status but presupposes it. Swiss nationals, persons with valid foreign status authorization, and nationals of EU/EFTA states who have filed a registration as an independent service provider under the 90-day rule can register.
Precision matters here because this point is where the most misinformation circulates. The 90 days per calendar year are a federal law option within the framework of freedom of movement, not cantonal generosity. The online registration runs through the federal portal (EasyGov), typically at least eight days before starting the activity; for sex work, the registration requirement applies from day one of work, so without the otherwise applicable minor threshold. And: this federal registration does not replace the cantonal TESEU registration. They are two separate processes at two authorities, and both must be completed.
Third-country nationals without appropriate authorization cannot register – for them, sex work in Switzerland is not an accessible option, not even in Ticino.
What Registration Is Not: Permission to Work at a Location
A widespread misunderstanding: with the TESEU number in hand, you’re „approved“. Registration concerns the person, not the place. According to the LProst, work is only permitted in an approved locale erotico or in an individually used apartment for which a notifica exists.
For the establishment, the operator is responsible: the permit is issued by the competent department, the issuance fee is CHF 350, the permit is granted for two years and is renewable – the renewal request must be submitted at least 30 working days before expiration. The gestore must meet personal requirements, be present full-time, and ensure that all persons present are properly registered.
For the apartment, the known strict conditions apply: only one person per apartment, only one apartment per building, a lease or rental agreement for at least three months, and registration is done by the person providing the apartment. The three-month clause is why short-term holiday rentals in Ticino regularly become a problem.
The 25 Francs per Working Day: How the Money Actually Works
The fiscal core of the Ticino regulation is a flat rate of CHF 25 per working day. It has been in place since the law came into force in 2019 and works in two variants:
In the locale erotico, the sex worker pays the amount to the operator. The operator is obligated to withhold the amounts and forward them to the tax authority – according to the LProst provisions and the instructions of the Divisione delle contribuzioni. The operator is thus effectively a collection agency for the canton.
In the apartment under Art. 14 LProst, which is not subject to a permit requirement, the person pays the amount directly to the tax authority, under the same terms that apply to the operator. The person providing the apartment may not deduct the amount – that’s explicitly not their role. According to published administrative information, the total amount owed must be transferred to the competent tax authority monthly, by the first of each month.
There’s also an obligation that’s often underestimated in everyday practice: anyone working in an apartment must prepare in advance a work schedule covering at least the entire following week and keep it available for inspectors. The work schedule is the basis for determining the number of working days – and thus the flat rate.
Administratively, this runs through the tax authority’s own forms: the Module 3P for accounting for the flat-rate withholding and Module 4P as a certificate/receipt for the tax period, supplemented by a circular letter from the Divisione delle contribuzioni dated July 1, 2019. Anyone who collects the receipts has proof later that payment has already been made.
Important: The Flat Rate Is an Advance Payment, Not a Final Settlement
The CHF 25 is an advance on the tax owed, not a final settlement. The amount was derived at the time from an assumed annual income in the range of approximately CHF 50,000 – a figure that was widely criticized in the debate about the law, among other things on the argument that daily advance payment says little about actually earned income. Anyone earning less pays too much relative to income; anyone earning more pays too little and will have the difference settled later.
Practically, this means: the tax situation is not settled with the 25 francs. Whether an ordinary assessment or source tax withholding applies at the end depends on residency status and residence situation. This allocation is not made by the police but by the tax authority – and that’s exactly where the question belongs, preferably before the first tax year is over.
What the Flat Rate Doesn’t Cover: Old-Age and Survivors’ Insurance, Health Insurance, Pension
The daily flat rate concerns exclusively taxes. Social insurance runs completely separately – and that’s the point where the most gets neglected in Ticino as everywhere in Switzerland.
Sex work in Switzerland is predominantly carried out as self-employment. Self-employment means: registration with the competent compensation fund, in Ticino through the municipal AHV agency or directly with the cantonal compensation fund. Self-employed status is verified and granted by the fund, not by the tax authority and certainly not by an establishment operator.
For 2026, the federal uniform rates apply: the contribution rate for AHV/IV/EO for self-employed persons is increasing in stages from 5.371 percent and amounts to the full 10 percent from annual income of CHF 60,500. At income up to CHF 10,100, the minimum contribution of CHF 530 per year applies. Add to that mandatory health insurance, any voluntary daily allowance or accident insurance – and the fact that the self-employed have no unemployment insurance. The second pillar is not mandatory; the third pillar 3a remains the most realistic way to build anything at all.
From annual revenue of CHF 100,000, VAT obligation comes into play. How these items together affect the actual monthly result is calculated here using the example of a canton without a registration counter – the logic is the same in Ticino, just with the daily flat rate on top.
What the Numbers Say About Practice
The official figures paint a clear picture of a shift. New registrations with TESEU: 219 in 2022, 284 in 2023, 352 in 2024. At the same time, violations for unlicensed operation rose from 50 (2022) through 59 (2023) to 149 (2024), with a continuing upward trend in 2025. In 2024, 128 people were reported to the Ministero pubblico, around 80 of them in connection with short-term rented apartments.
This contrasts with legal structures: nine approved locali erotici and, as of end of 2024, 24 registered apartments. Research by public broadcasters concluded that the number of actually listed red-light apartments is many times that. The gap between 24 and what appears in the ads is the real story of Ticino’s regulation.
What checks look like was shown in summer 2025 by the international operation „Chain“ by Fedpol and Europol. In Ticino, around 140 people were checked, all nine approved establishments inspected – everyone present there was correctly registered – as well as a public establishment and 14 apartments that didn’t meet LProst requirements. 15 people were reported. No suspected cases of human trafficking were found in the canton.The State Council renewed an interdepartmental working group in 2024 that monitors the phenomenon, examines the effectiveness of the 2019 law, and proposes any necessary adjustments — including with a view to the safety of sex workers. At the time of going to press, no adopted legislative amendment resulted from this work. If you work in Ticino, you should keep an eye on this process.
The Unclear Gray Area: Hotel and Client Residence
One point remains sensitive. After the law came into force, women were prosecuted for working at clients’ homes or in hotels. In 2020, a criminal judge acquitted two affected individuals: Art. 3 LProst does not list either the client’s residence or the hotel among the prohibited locations, and a private apartment is not a place where sex work is regularly exercised. The public prosecutor’s office announced an appeal; in response to an interpellation, the State Council took substantively the same position as the first-instance court.
The classification is important: this was a first-instance decision, and clarification by a higher court is not documented in publicly accessible sources. If you plan escort appointments outside the licensed premises or the registered apartment, you are moving in an area that has been judged permissible by the court and government, but which the police have already viewed differently. This is precisely the situation in which a brief, documented inquiry with the TESEU section is worth more than any interpretation on the internet — including this one.
Where You Ask Before You Pay
- Cantonal Police, TESEU Section: Registration, TESEU number, apartment registration, changes, deregistration. First point of contact for everything concerning the legality of your work situation.
- Divisione delle contribuzioni (DFE): Daily allowance, 3P/4P modules, classification as ordinary taxation or withholding tax.
- Cantonal Compensation Fund or municipal AVS agency: Self-employment status, contributions, registration.
- Municipality: municipal ordinance, zones, building rights and changes of use. These regulations vary considerably from municipality to municipality — there is no canton-wide figure for this.
- Primis (Zonaprotetta), Lugano: Counseling for sex workers, designated as a reference point since 2006, with language and cultural mediation specialists; counseling anonymous and free of charge.
- Sexual Health Consultancies of the EOC in Bellinzona, Locarno, Lugano, and Mendrisio: free counseling on sexual health, anonymous upon request.
In Brief
Ticino’s registration requirement is not a formality, but it is also not a labyrinth. Appear in person at TESEU, present your ID, pay CHF 100, receive your TESEU number — that is the entry point. Then comes the ongoing part: CHF 25 per working day, at the premises via the operator, at home monthly directly to the tax authority, with a work schedule for the coming week in advance. And in parallel, registration with the compensation fund, which has nothing to do with the police and yet determines your pension.
If you contact these four addresses — police, tax authority, compensation fund, municipality — once at the beginning, you will save yourself fines in the four to five-digit range later. Only the information from these offices is binding; the figures and deadlines mentioned here reflect the publicly documented status and may change, particularly in the course of the ongoing review of the law.