How to Pay Taxes and Arrange Insurance as a Swiss Cross-Border Commuter?

Who officially qualifies as a cross-border commuter (Grenzgänger) between Switzerland and Hungary?

A cross-border commuter (Grenzgänger) is an employee who works in Switzerland but has their habitual residence in another country and returns regularly to their place of residence. To work in Switzerland under this status, a cross-border commuter permit is required: the G permit (Grenzgängerbewilligung / Ausweis G).

An important geographical fact: Switzerland and Hungary do not share a border. Traditional daily commuting (crossing the border in the morning and returning in the evening) is not realistic in this case. In practice, Hungarian–Swiss “commuting” typically refers to arrangements in which the employee maintains a residence in Hungary but works for a Swiss employer, often combined with partial remote work.

As an EU citizen, a Hungarian national may use cross-border commuter status under the Agreement on the Free Movement of Persons (FZA, 1999). This provides the legal framework for entering into Swiss employment while residing in Hungary.

The classification of this status is critical because it determines where tax is paid, where social security contributions are due, and what health insurance is mandatory. These three issues are interconnected and vary according to residence, gainful activity and family circumstances.

Where must tax be paid on income earned in Switzerland if you live in Hungary?

The right to tax income from work performed in Switzerland lies primarily with Switzerland. The Swiss employer may deduct withholding tax (Quellensteuer) directly from the salary.

However, this does not conclude the process. The income must be declared in the Hungarian tax return. Double taxation is avoided by crediting tax already paid abroad or by exempting the income.

Why is Swiss withholding tax not sufficient?

Because of Hungarian residence, Hungary considers the taxpayer on the basis of worldwide income. This means that the Hungarian tax return also “sees” Swiss income, even if the tax was actually paid in Switzerland. The double taxation agreement (Doppelbesteuerungsabkommen, DBA) determines which country taxes what and by which method (credit or exemption) the overlap is eliminated.

What does this mean in practice?

• Withholding tax is deducted by the Swiss employer, usually automatically.

• The income must be included in the Hungarian tax return, even if it has already been taxed in Switzerland.

• The method (credit or exemption) depends on how the rules of the agreement apply to the particular situation.

This article was prepared on the basis of the available notes, which do not include the primary text of the Hungarian–Swiss agreement. Individual filing situations—such as mixed income, working from home or a change of status during the year—therefore require expert review. The specific tax rate, the exact mechanism for the tax credit and any potential refund vary from case to case.

What health insurance is required, and do Hungarian nationals have a right of choice (Optionsrecht)?

A cross-border commuter living in Hungary and working in Switzerland must take out Swiss basic insurance (KVG / LAMal). They cannot remain covered solely by the Hungarian public health insurance system instead of Swiss insurance.

With regard to the right of choice (Optionsrecht), the situation in Hungary differs from that in several neighbouring countries. According to the dossier, the Optionsrecht — which allows cross-border commuters to choose insurance in their country of residence instead of Swiss KVG — is available to residents of Germany, France, Italy, Austria and Finland. This right of choice does not apply to cross-border commuters living in Hungary.

How are the Swiss and Hungarian systems connected?

A cross-border commuter living in Hungary who has Swiss KVG insurance can register with the Hungarian health insurer (NEAK) using the S1 form (formerly E106). This also entitles them to healthcare in Hungary — at the expense of the Swiss insurance.

This mechanism is key: the insurance is held and paid for in Switzerland, but healthcare can also be accessed in the commuter’s Hungarian country of residence. This means that the commuter does not need to maintain two complete systems in parallel.

Table: health insurance basics for cross-border commuters living in Hungary

The specific monthly KVG premium varies by canton and insurer. In Switzerland, health insurance premiums are individual and not income-based, so the amount must be checked on a case-by-case basis.

What happens with family members’ insurance and family allowances?

As a general rule, the insurance obligation of non-working family members falls under Swiss rules. An exception applies if the other parent is gainfully employed in Hungary or another EU Member State.

This exception is decisive for most families. The logic follows the place of gainful employment, rather than simply the place of residence.

Where should children be insured?

• If only one parent works (in Switzerland), insurance for non-working family members generally falls under the Swiss system.

• If the other parent works in Hungary, children must be insured in Hungary — in this case, they cannot be insured in Switzerland.

The rule set out in the dossier (as of 2024) is clear: the other parent's gainful employment in Hungary links the insurance of family members to Hungary. This must be reassessed whenever the family situation changes (for example, when taking up employment or changing jobs).

What about family allowances?

The coordination of family benefits follows a logic similar to that of insurance: the places of gainful employment and the family’s place of residence together determine which state pays primarily and which provides a supplementary payment. The available note does not contain verified information on the specific amounts of family allowances or the exact procedure for supplementing the difference, so this should be clarified individually on the basis of information from NEAK and the Swiss family allowance office (Familienausgleichskasse).

What risks does working from home involve from a tax and social insurance perspective?

The proportion of working from home directly affects which country's social insurance system applies. Monitoring the thresholds is therefore not a formality, but a genuine financial and administrative risk.

In social insurance, the multilateral framework agreement between the EU/EFTA and Switzerland provides flexibility for remote work.

When does the Swiss social insurance system continue to apply?

Under the multilateral framework agreement, an employee may remain in the Swiss social insurance system if remote work performed in their country of residence does not reach 50% of total working time.

This framework agreement allows for an increased remote-work share of up to nearly 50% without the insurance obligation transferring to the country of residence.

When can the obligation shift to Hungary?

• If work performed from Hungary reaches 50%, the entire social insurance obligation may shift to Hungary.

• Outside the scope of the Framework Agreement, even 25% of work performed in Hungary may shift the obligation to Hungary.

This has serious implications for the employer: a transfer of social security coverage may entail registration and contribution payment obligations in Hungary for the Swiss employer. This is unattractive to many Swiss employers, which is why they often limit the proportion of work that can be performed from the place of residence themselves.

Why do tax and social security rules not coincide?

It is important to distinguish between two matters: social security affiliation (Framework Agreement, 50% threshold) and the place of taxation (DBA, withholding tax). These are different sets of rules, with different thresholds, and they do not automatically move together. Increasing the number of home-office days can therefore change the situation through two channels at once—both social security and tax.

Home-office thresholds must be interpreted solely in light of the scope of the multilateral Framework Agreement and its applicable conditions. Whether a specific employment relationship falls within the scope of the Framework Agreement requires an individual assessment.

Sources

• fv-bwl.de (tax authority information for cross-border commuters) —

• zh.ch (Canton of Zürich, health insurance information for cross-border commuters) —

• svazurich.ch (KVG information for cross-border commuters) —

• kvg.org (insurance obligation and Optionsrecht, 2024) —

• kvg.org (insurance obligation and Optionsrecht) —

• comparis.ch (overview of the cross-border commuter system, commercial comparison website) —

• einwandern-schweiz.ch (S1/E106 information, commercial advisory website) —

• zeitag.ch (home office rules for cross-border commuters, commercial blog) —

• kendris.com (cross-border commuters: social security, employment law, taxation, advisory analysis) —

• grenzgaengerdienst.de (cross-border commuter taxation, commercial service provider) —

• svazurich.ch (mandatory health insurance — eligibility) —

• welc.ch (cross-border commuter health insurance, commercial website) —

• internationaltaxreview.com (taxation of home office arrangements and commuters, professional analysis) —

• kvg.org (list of liaison bodies) —

Note on sources: the list above includes both official/authoritative and commercial (advisory, comparison) sources. Commercial websites are useful for orientation, but official confirmation is provided by cantonal and federal authorities, as well as NEAK.

Related Articles

• Cross-border commuting to Switzerland: what are the real costs and pitfalls?

• G permit as a cross-border worker: what do you need to know?