How does the tax credit work in 730 for a cross-border commuter?

The cross-border commuter declares the gross income in EUR (converted at the rate of the Revenue Agency) in the EC framework of 730. The Agency recognizes the taxes paid in Switzerland (AHV/AI/AD/AC/LAINF) as a tax credit, subtracting them from the Italian IRPEF due. If the Swiss taxes are higher than the Italian IRPEF, the rebate (refund) is triggered. This mechanism avoids the double taxation provided for by the Convention signed on 9 December 1976.

At what exchange rate should I convert my CHF salary to EUR?

It depends on the context. For the tax return (730), you use the reference rate published by the Revenue Agency (monthly). For real conversions in the bank, you use the market rate on the day of the transaction. These two rates rarely coincide: the difference is the real cost/gain of the exchange. Monitor historical EUR-CHF rates to identify the best conversion times.

I am a single cross-border commuter with a gross salary of CHF 60,000: how much will I be withheld in Switzerland?

You receive withholdings for AHV/IV (5.3%), AD/AC (1.1%), UVG (0.7–1.5%), and BVG (7–18% depending on age, e.g. 10%). Approximate total: ~24%. On 60,000 CHF, the withholding tax is around 14,400 CHF, leaving you ~45,600 CHF net in Switzerland. After that, the Revenue Agency taxes the gross income (converted into EUR) with IRPEF 23%, 35%, 43% per bracket. The tax credit offsets the Swiss withholdings.

What changes between 'old' and 'new' cross-border commuters in 2026?

Old cross-border commuters (already such before 17 July 2023) have €7,500 exemption until 2033, with a transitional regime. New cross-border commuters benefit from a €10,000 exemption. Both apply the New Cross-Border Commuter Agreement (effective from 1 January 2024). The difference in the deductible is reflected in the taxable base for personal income tax, slightly reducing taxes for new cross-border commuters in the first year.

Where can I find the declaratory exchange rate for the 730?

The Revenue Agency publishes the reference exchange rate on its official website, generally on a monthly basis. You can consult the website agenziaentrate.gov.it > the Foreign section > Exchange Rates. Use the rate in force in the month in which you received the income, or an annual average if agreed with your CAF. It is different from the bank rate on the day of conversion.

How to protect your salary from exchange (cross-border guide)

Di Marco Ferrari · Published on 5 September 2026

Calculator and Swiss francs on desk with Lake Lugano view. Financial planning workspace in Ticino.

The new 2024 cross-border agreement and the 2026 IRPEF rates make the exchange rate strategy critical. Practical guide for singles: timing, procedures, operational tools.

Context

In short

New Cross-border Agreement in force from 1 January 2024: modified tax regime
IRPEF rates 2026: 23% up to €28,000, 35% up to €50,000, 43% above
Withholding tax ONLY in Switzerland; tax credit in Italy
Timing of the EUR-CHF exchange rate is critical for the real net of single cross-border workers

Key facts

What: New cross-border agreement between Switzerland and Italy
When: Effective January 1, 2024 (signed December 23, 2020)
Where: Ticino-Italy cross-border workers (Brogeda, Gaggiolo, Ponte Tresa, Chiasso passes)
Who: SECO (Switzerland), INPS and Revenue Agency (Italy)
Regimes: Old cross-border commuters exemption €7,500 (transit 2024–2033); new €10,000
Rates: Italian IRPEF 23%, 35%, 43% by bands; AVS/AI Switzerland 5.3%
Tax: Withheld ONLY in Switzerland; double taxation avoided with tax credit (EC framework of 730)

Starting from 1 January 2024, the New Cross-border Agreement between Switzerland and Italy has significantly changed the tax and contribution regime of those who work in Swiss territory and reside in Italy. For the single cross-border worker, this transition has concrete implications on the management of the CHF-EUR exchange rate: the real net varies not only with the volatility of the currency pair, but also with the tax declaration deadlines and the timing of conversion of the salary into euros.

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Operational details

EUR-CHF volatility: the silent impact on the net

The Convention between Italy and Switzerland, signed on 9 December 1976, establishes that the main tax burden remains with the country where the income is produced (Switzerland for our cross-border workers). However, the Italian tax credit mechanism presupposes that the cross-border worker declares his income in EUR, applying a reference exchange rate. If the cross-border worker changes his CHF into EUR at a worse rate (e.g. 1.00 CHF = 0.95 EUR) than the declaration rate (e.g. 1.00 CHF = 1.05 EUR), he loses the difference, even if the tax remains formally correct.

Let's consider a hypothetical scenario: a single cross-border worker earns 80,000 CHF gross per year in Switzerland, to which AVS/AI (5.3%), AD/AC (1.1%), LAINF (0.7%) and LPP (7–18% depending on age, let's assume 10%) apply. The total Swiss withholding tax is approximately 24.1%, leaving a net of ~CHF60,720. If the cross-border worker converts at the rate of 1.00 CHF = 0.95 EUR, he receives ~57,684 EUR. However, if the average reporting rate for IRPEF is 1.00 CHF = 1.02 EUR, the Italian tax authorities tax it on 81,600 EUR (80,000 * 1.02), not on 57,684. This creates a discrepancy that the single cross-border worker must manage when filling out the 730, because the Revenue Agency compares the theoretical IRPEF (out of EUR 81,600) with the Swiss taxes paid (already counted in CHF converted at the declaration rate), and if the result is negative, it issues a refund.

Timing and exchange strategy

For the single cross-border worker who has discretion over the conversion timing, there are three approaches:

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Key points

Practical checklist for single cross-border commuters in 2026

Step 1: Check your border status

Are you an 'old cross-border worker' (already one before 17 July 2023)? Benefit from the €7,500 exemption until 2033.
Are you a 'new cross-border worker'? The deductible is €10,000.
Verify that you have the G Permit at the SEM (Secretariat of State for Migration).

Step 2: Collect the documents for the 730

Swiss bank statements (gross CHF, details of AVS/AI/AD/AC/LAINF/LPP withholdings).
Swiss employer's certificate (income summary document).
Print certificate of withholding tax paid in Switzerland (to be requested from AFC/ESTV, Cantonal Federal Tax Administration).

Step 3: Determine the declarative exchange rate The exchange rate for IRPEF is established by the Revenue Agency and published monthly. It does not coincide with the bank rate on the day of your conversion. Calculate your income in EUR using the Agency rate, valid in the month in which you received the income. Consult the Revenue Agency website > foreign section > exchange rates.

Step 4: Fill in the 730 CE form In the CE framework (foreign income), declare the gross income in EUR (converted at the Agency rate), the taxes paid in Switzerland, and request the tax credit. The Agency will compare the IRPEF you should pay in Italy with the Swiss taxes paid; will return the difference (if in your favor) to you by refund by November–December 2026.

Step 5: Manage currency exchange strategically

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Frequently Asked Questions

How does the tax credit work in 730 for a cross-border commuter?: The cross-border commuter declares the gross income in EUR (converted at the rate of the Revenue Agency) in the EC framework of 730. The Agency recognizes the taxes paid in Switzerland (AHV/AI/AD/AC/LAINF) as a tax credit, subtracting them from the Italian IRPEF due. If the Swiss taxes are higher than the Italian IRPEF, the rebate (refund) is triggered. This mechanism avoids the double taxation provided for by the Convention signed on 9 December 1976.
At what exchange rate should I convert my CHF salary to EUR?: It depends on the context. For the tax return (730), you use the reference rate published by the Revenue Agency (monthly). For real conversions in the bank, you use the market rate on the day of the transaction. These two rates rarely coincide: the difference is the real cost/gain of the exchange. Monitor historical EUR-CHF rates to identify the best conversion times.
I am a single cross-border commuter with a gross salary of CHF 60,000: how much will I be withheld in Switzerland?: You receive withholdings for AHV/IV (5.3%), AD/AC (1.1%), UVG (0.7–1.5%), and BVG (7–18% depending on age, e.g. 10%). Approximate total: ~24%. On 60,000 CHF, the withholding tax is around 14,400 CHF, leaving you ~45,600 CHF net in Switzerland. After that, the Revenue Agency taxes the gross income (converted into EUR) with IRPEF 23%, 35%, 43% per bracket. The tax credit offsets the Swiss withholdings.
What changes between 'old' and 'new' cross-border commuters in 2026?: Old cross-border commuters (already such before 17 July 2023) have €7,500 exemption until 2033, with a transitional regime. New cross-border commuters benefit from a €10,000 exemption. Both apply the New Cross-Border Commuter Agreement (effective from 1 January 2024). The difference in the deductible is reflected in the taxable base for personal income tax, slightly reducing taxes for new cross-border commuters in the first year.
Where can I find the declaratory exchange rate for the 730?: The Revenue Agency publishes the reference exchange rate on its official website, generally on a monthly basis. You can consult the website agenziaentrate.gov.it > the Foreign section > Exchange Rates. Use the rate in force in the month in which you received the income, or an annual average if agreed with your CAF. It is different from the bank rate on the day of conversion.