First day working in Ticino: essential documents (cross-border guide)

Context

In a nutshell

• G leave, contract, payroll: critical documents to be managed on the first day of work in Ticino
• Withholding tax withheld in Switzerland; old frontier workers: €7,500 deductible, new: €10,000
• LAMal mandatory for all; G border workers have the right of option within 120 days

Key facts

• What: Documents, taxes and medical insurance on the first day of work as a border worker
• When: First day of employment; LAMal within 120 days; tax at source from first paycheck
• Where: Canton of Ticino, Chiasso, Brogeda, Gaggiolo passes
• Who: Border workers with G Permit, Swiss employer
• Amount: Tax ~8–12% cantonal Ticino on gross; AVS/AI 5.3%; LAMal CHF 300–2500 per year (deductible)

The first day of work in Ticino as a border worker is crucial: in addition to the company presentation, it is necessary to manage documents and formalities that directly affect payroll, taxes and medical coverage. It is not just bureaucracy, but the basis of your tax and social security regime for all the years to come.

Necessary documents for the first day

To cross the border (Chiasso, Brogeda, Gaggiolo) and introduce yourself to the Swiss employer, take with you:

Passport or ID Card — Essential document to cross the border and identify yourself to the employer and administration.

Permit G — The application is submitted to the Migration Service (SEM) within three months of the start of work. In the meantime,

Operational details

The real complexity of the first day is not just bureaucratic, but fiscal. The border worker who starts work in Ticino enters a regime of double tax consideration: income produced in Switzerland, but residence and family in Italy. How does it actually work on the payroll?

Tax at source and Swiss payroll

From the first paycheck, the employer applies the source tax on the employee's income. It is not a temporary withholding tax, but a definitive tax, withheld only in Switzerland under the regime of the Italy-Switzerland Double Taxation Convention, signed on 9 December 1976 and modernised by the New Frontier Agreement.

For frontier workers:

• Old frontier workers (already before 17 July 2023): they benefit from an exemption of €7,500 gross per year and a transitional regime from 2024 to 2033. Beyond this threshold, the tax is triggered in Switzerland according to the Ticino cantonal rates.
• New frontier workers (starting from 17 July 2023): excess of €10,000 gross per year.

In addition to the deductible, a cantonal rate (Ticino between 8 and 12%, depending on the municipality of Italian residence) is applied to the gross amount in excess.

At the same time, the employee suffers withholdings for Swiss social contributions:

• AVS/AI/IPG (old-age insurance, disability, supplementary benefits): 5.3% to be paid by the employee
• AD/AC (unemployment insurance): 1.1% of gross salary (maximum CHF 148,200 per year)
• LAINF

Useful planning tools

To estimate your pension strategy, use the pension planner and the pillar 3 simulator.

Key points

How to Proceed in the First Days and Weeks

The first day is mainly for collection and subscription of documents. The operational deadlines are distributed as follows:

Day 1 – First day at work

• Submission of the signed contract to the employer.
• Communication of bank details (IBAN for salary deposit).
• Request for the enrollment form for health insurance and information on the AVS number.

Within 3 months – G Permit

• Present the application to the cantonal migration service (SEM) with passport/identity card, employment contract, and personal data. In anticipation of the official release, the provisional authorization allows you to work normally and cross the border without hindrance.

Within 120 days – LAMal (option choice)

• Inform the employer or directly the Swiss health insurance company if you choose to insure in Switzerland (LAMal, with deductible for adults from CHF 300 to CHF 2,500 per year) or remain covered by the Italian healthcare system. This choice affects your protection and your direct expenses.

Within May of the following year – Declaration 730

• Submit the Italian tax return, indicating the gross Swiss income and the amount of tax withheld in Switzerland. The accountant or CAF will calculate the tax credit due, determining if you are owed refunds or amounts to be paid.

…