Birth of a border child within 20 km: registry 2026 (cross-border guide)

Practical guide for border workers within 20 km of the border: registration of the newborn, family allowances and consular procedures according to the 2026 regulations.
Context
In a nutshell
- New Frontier Agreement in force from 1 January 2024
- AVS/AI/IPG rate 5.3% on income from work
- Italian personal income tax: 23% up to 28,000 euros, 35% up to 50,000, 43% over
Key facts
- What: New Frontier Agreement signed on 23 December 2020
- When: Entered into force 1 January 2024
- Where: Canton of Ticino and border regions Italy-Switzerland
- Who: Frontier workers with G permit
- Amount: Deductible €10,000 for new frontier workers, €7,500 for old
- Swiss rate: AVS/AI/IPG 5.3% employee, AD/AC 1.1% (cap CHF 148'200)
- Italian rate: IRPEF 23% up to €28'000, 35% €28'001–50'000, 43% over
Lead: The birth of a child for border families residing within 20 km of the border involves specific administrative requirements both in Switzerland and in Italy. According to current legislation, the registration of the newborn must be carried out at the civil registry office of the Italian municipality of residence within ten days of birth, presenting the birth certificate issued by the Swiss hospital and the G permit of the working parent. For border workers, the family allowance is managed by INPS on the basis of tax residence in Italy, while Swiss social security contributions (AVS/AI/IPG 5.3%, AD/AC 1.1% with a ceiling of CHF 148'200, LAINF 0.7-1.5% and LPP 7–18% by age group) are withheld directly at source by the Swiss employer. The source tax remains unique in Switzerland;
Operational details
Tax and social security aspects
The management of labour income for border workers remains unchanged: the tax at source is withheld exclusively in Switzerland, with rates established by federal and cantonal law and administered by the AFC/ESTV. On the salary, the AVS/AI/IPG contributions equal to 5.3% for the employee share, the AD/AC at 1.1% with a limit of CHF 148'200, the LAINF between 0.7% and 1.5% and the LPP between 7% and 18% depending on the age of the worker (calculated from the age of 25) apply. In Italy, foreign income must be declared in form 730, EC framework, where a tax credit is obtained that avoids double taxation according to the convention of 9 December 1976. The Italian IRPEF rates are: 23% up to €28,000, 35% from €28,001 to €50,000 and 43% over €50,000.
With regard to family allowances, INPS recognizes the right to the benefit if at least one parent is a tax resident in Italy and the family unit resides within 20 km of the border. The amount varies according to the number of children and total income, but is not subject to Swiss contributions. The new tax agreement, signed on 23 December 2020 and ratified in Italy with Law 83 of 13 June 2023, also introduces the possibility of choosing health insurance (LAMal) through a right of option for G border workers, with an annual deductible that can vary from CHF 300 to CHF 2500 for adults.
Scenario Comparison
Let's consider two situations
Useful tools for your case
To verify your within/over 20 km tax scenario, use the net salary calculator and the tax return guide.
Key points
1. Obtain the international birth certificate from the Swiss hospital within 24 hours of the birth. 2. Translate the birth certificate into Italian if it was issued in German or French (service offered by border towns). 3. Present yourself to the Italian municipality's record office within ten days of the birth, bringing:
- Original and translated birth certificate
- Valid identity document for the parent
- Current permit G
- State of family or self-declaration of residence
4. Request the registration of the newborn at the local population register (AIRE if applicable). 5. Notify the INPS by filling out the SR163 form or by using the INPS portal, providing details of the child and the requesting parent. 6. Verify with the Swiss employer that the AVS/AI/IPG 5.3%, AD/AC 1.1%, LAINF 0.7-1.5% and LPP 7-18% contributions are correctly applied to the salary. 7. Check that only the tax is withheld in Switzerland and that the tax credit is claimed in the 730 tax return the following year. 8. If you wish to exercise the right of option for the LAMal, submit the application to the chosen Swiss sickness fund within three months of starting work.
Important deadlines: The anagrafic registration must be made within 10 days of birth, and the annual deadline for filing income tax returns in Italy (usually 30 June). The transitional regime for old border residents remains valid until 31 December 2033, while the new €10,000 threshold applies to all new permit G's issued after 17 July 2023.
For further information on calculating and verifying the impact on net pay, use the dedicated tool: Calculator for salary.
Frequently Asked Questions
- What is the procedure for registering a child born in Switzerland to border parents?
- It is necessary to obtain the international birth certificate from the Swiss hospital, translate it if necessary, and present it at the registry office of the Italian municipality of residence within ten days of birth, together with the identity document, G permit and family status. The office then registers the newborn and sends the communication to INPS for the family allowance.
- How do family allowances work for border workers residing within 20 km of the border?
- The INPS pays the family allowance on the basis of tax residence in Italy and the number of children, regardless of the place of work. The benefit is calculated on the taxable income declared in Italy and is not subject to Swiss contributions. To obtain it, it is sufficient to communicate the birth to INPS through the SR163 form or the online portal, attaching the birth certificate and the G permit documentation.
- What social security contributions are withheld from the salary of a frontier worker in Switzerland?
- From labour income, the contributions AVS/AI/IPG equal to 5.3% for the employee share, the AD/AC at 1.1% with a ceiling of CHF 148'200, the LAINF in the range of 0.7%-1.5% and the LPP between 7% and 18% depending on the age of the worker (calculated from the age of 25) are withheld. These percentages are set by federal and cantonal law and administered by the AFC/ESTV.
Related articles
- Confine tesissimo: stop agli assegni familiari ai
- BYD si espande in Ticino: 50 concessionari entro il 2026
- Scontro Svizzera-Italia su assegni familiari: rischio pagamenti doppi per i frontalieri
- Assegni familiari ai frontalieri: la mozione di Quadri
- Permesso G vs B frontalieri 2026 entro 20 km: quando conviene cambiare