Data jumble and old border taxes: clarity needed (cross-border guide)
The transitional regime 2024-2033 for frontier workers prior to 17/7/2023 creates confusion: exemption €7,500 vs deductible €10,000 for new ones, tax at source only in Switzerland, tax credit Italy in the EC framework.
Context
In a nutshell
- New border agreement in force from 1 January 2024, not 2026
- Old border crossers (before 17/7/2023): exemption €7,500 until 2033
- Tax at source withheld only in Switzerland, Italy avoids double taxation with tax credit
- Italian personal income tax rates: 23% up to €28,000, 35% €28,001-50,000, 43% over €50,000
Key facts
- What: Transitional regime for old border workers and new Italy-Switzerland tax agreement
- When: Agreement signed 23/12/2020, in force 1 January 2024; transitional regime 2024-2033
- Where: Canton of Ticino and Italian border municipalities
- Who: Border guards with G permit, Revenue Agency, AFC/ESTV, Canton Ticino
- Amount: Exemption €7,500 old frontier workers, excess €10,000 new frontier workers
- CH rates: AVS/AI/IPG 5.3%, AD/AC 1.1%, LAINF 0.7-1.5%, LPP 7-18%
- IT rates: IRPEF 23%/35%/43% per bracket
The new border agreement between Italy and Switzerland, signed on 23 December 2020 and ratified by Italy with Law 83 of 13 June 2023, entered into force on 1 January 2024. Not in 2026, as sometimes erroneously reported. This agreement introduces a ten-year transitional regime (2024-2033) for so-called "old frontier workers", i.e. those who were already working in Switzerland before 17 July 2023.
Differences between old and new frontier workers
The distinction is crucial: old border workers benefit from an exemption of 7,500 euros per year, while new
Operational details
# Practical Payroll Implications
For a border worker resident in Italy working in Ticino, the Swiss paycheck shows withholdings for AVS/AI/IPG at 5.3% (dependent), AD/AC at 1.1% with a ceiling of 148,200 francs, LAINF between 0.7% and 1.5% depending on the sector, and LPP (second pillar) between 7% and 18% based on age group (from 25th year). These rates are set by federal and cantonal laws, administered by AFC/ESTV at the federal level and by cantonal tax administrations — never by UFAS (which manages AVS/AI) nor by BFS (which only collects statistical data).
In Italy, the IRPEF applies to the brackets: 23% up to 28,000 euros, 35% between 28,001 and 50,000 euros, 43% over 50,000 euros. The Swiss source tax credit is calculated in the EC framework of 730, avoiding that the same income is taxed twice. However, the coexistence of two schemes (exemption €7,500 vs deductible €10,000) for different categories of border crossers creates confusion in the compilation of the pre-filled form and in the verification of the adjustment.
The knot of refreshments and the location of the Canton of Ticino
Refunds — tax transfers from Switzerland to Italian border municipalities — are calculated on the source tax collected. The transitional regime affects the tax base and therefore the amount of refunds for the municipalities of Lombardy and Piedmont. The Canton of Ticino has repeatedly requested clarity on the uniform application
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
What to do next: Border checklist
1. Check the date of first activity in Switzerland: if before 17 July 2023, the transitional regime with an exemption of €7,500 until 2033 is applicable. 2. Check the Swiss income certificate : it must clearly indicate the exemption applied (old border guards) or the deductible (new border guards). 3. Fill in the EC framework of 730: return the tax to the source suffered in Switzerland to obtain the Italian tax credit. 4. Compare with the pre-filled: the Revenue Agency receives the data from Switzerland; verify that the €7,500 exemption is correctly implemented. 5. Keep the documentation: payroll, annual certification, G permit, for any checks or adjustments.
Deadlines to mark
- Declaration 730/2025 (income 2024): ordinary deadline 30 September 2025
- Transitional regime for old frontier workers: valid until 31 December 2033
- New agreement: effective 1 January 2024, no extension to 2026
To calculate the net impact on your salary and verify the correct application of the exemption or deductible, use our tax simulation tool.
Calcola il tuo netto frontaliere
Frequently Asked Questions
- What is the difference between €7,500 exemption and €10,000 deductible for frontier workers?
- The exemption of €7,500 is due to old frontier workers (already before 17/7/2023) for the transitional regime 2024-2033. The €10,000 deductible is due to new frontier workers (from 18/7/2023). Both reduce the tax base in Italy, but the exemption is fixed for 10 years, the deductible is the ordinary rule of the new agreement.
- Is source tax payable in both countries?
- No. Income tax at source is only withheld in Switzerland. Italy avoids double taxation by granting a tax credit to be claimed in the EC framework of declaration 730, for the source tax suffered in Switzerland.
- When does the transitional regime for old frontier workers end?
- The transitional regime for old frontier workers (€7,500 exemption) is valid from 2024 to 2033 inclusive. From 2034, the ordinary rules of the new agreement will apply, subject to further extensions or legislative changes.
- Who administers tax rates at source in Switzerland?
- Rates are set by federal and cantonal laws. At the federal level the AFC/ESTV (Federal Tax Administration) administrations, at the cantonal level the cantonal tax administrations. UFAS manages AVS/AI (pension), BFS only does statistics.
- What happens if the Swiss certification shows the wrong exemption?
- The border worker must contact the employer or the Swiss social security institution to obtain a rectified certification. The error affects the Italian 730 and the tax credit in the EC framework. Keep payroll and permit G to prove the date of first activity.
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