Tax residency in Sweden – Not a Swedish Citizen: Essential Connection, Tax Treaties, and the Risk of Double Taxation

Tax residency in Sweden: Taxed in Sweden but Not a Swedish Citizen

- Essential Connection, Tax Treaties, and the Risk of Double Taxation

A person can be fully taxable in Sweden without holding Swedish citizenship, while remaining obliged to declare the same income in their home country. This is a structural consequence of the fact that states base their tax claims on different grounds, such as residence, citizenship, or economic connection, and that tax treaties between countries do not always fully resolve the resulting conflict.

This article gives an overview of what makes a foreign citizen taxable in Sweden, how tax treaties allocate taxing rights between Sweden and the home country, and why some individuals nonetheless end up double taxed, in two roles: as an employee and as a business owner.

When does a foreign citizen become fully taxable in Sweden?

Under the Swedish Income Tax Act, inkomstskattelagen (1999:1229), IL,

an individual has unlimited tax liability in Sweden if any of three grounds apply:

  1. The person is resident in Sweden.
  2. The person stays in Sweden on a habitual basis.
  3. The person has an essential connection to Sweden and has previously been resident here.

Citizenship is not, in itself, a ground for unlimited tax liability under Swedish domestic law. What matters is residence, habitual stay, or connection, regardless of which passport the person holds. The consequence of unlimited tax liability is, under the Income Tax Act, that the person is taxable on all worldwide income, both income arising in Sweden and income arising abroad.

Essential connection: another route into Swedish taxation

Tax residency in Sweden -Ny arbetsplats kan innebära att väsentlig anknytning till Sverige kvarstår efter flytt eller att skattskyldighet uppstår om du blivit anställd i Sverige från annat land

Essential connection (väsentlig anknytning) is a concept under the Income Tax Act that becomes relevant for individuals who have previously lived in Sweden and then moved away, but who retain a number of ties here. The assessment is made through an overall evaluation that takes into account, among other things, Swedish citizenship, the length of prior residence, whether the person has settled permanently at a specific foreign location, a home in Sweden equipped for year round use, family in Sweden, business activity in Sweden, an economic engagement that gives significant influence over business activity in Sweden, and property ownership in Sweden.

This is an area that has developed extensively through case law, both through court rulings and advance rulings. In practice, a shareholding of ten percent or more, as well as a retained permanent home, weighs heavily in the assessment. A pure capital placement without genuine influence normally carries less weight. A Swedish citizen, or someone who has lived in Sweden for at least ten years, is also subject to a presumption rule, meaning a rule under which a certain condition is assumed to exist unless proven otherwise: for five years from the date of departure, an essential connection is presumed to exist, and it is the taxpayer who must prove the opposite.

For a foreign citizen who has never been resident in Sweden, essential connection is not the relevant ground. For this group, it is instead residence or habitual stay that determines tax liability, for example when moving to Sweden for employment or to start or run a business from Sweden.

Employee or a business owner - Two roles, two different risk profiles

As an employee.

A person with unlimited tax liability in Sweden who works abroad may, under certain conditions, be exempt from Swedish tax on the foreign salary, under the six month rule or the one year rule in the Income Tax Act. Conversely, a foreign citizen working in Sweden, regardless of country of residence, is as a general rule taxed here on work physically performed in Sweden. In a tax treaty context, this is normally governed by the dependent personal services article, which largely follows the OECD Model Tax Convention and allocates taxing rights to the state where the work is carried out, subject to exceptions for shorter assignments under specific conditions.

As a business owner.

Here the risk profile is different, and it can arise on two levels at once. First, business activity in Sweden, or an economic engagement that gives significant influence over Swedish business activity, is itself a connecting factor. A foreign citizen who runs, or holds a significant stake in, a Swedish company therefore risks being assessed as having an essential connection to Sweden even after moving abroad.

Second, the situation can give rise to an entirely separate assessment at the company level. A foreign company that carries on cross border activity, for example through a representative or employee who is resident in Sweden and acts on the company’s behalf here, can correspondingly create a permanent establishment in Sweden, with Swedish corporate taxation of the portion of the business attributed to that establishment as a result. This means the same underlying facts, a foreign citizen active in or on behalf of a company with ties to both Sweden and another country, may need to be assessed from two directions at once: the individual’s own tax liability, and the company’s. This is a considerably more technical assessment than the employee case, and it often requires a combined review of ownership structure, place of effective management, where economic value is actually created, and who is acting on the company’s behalf in Sweden.

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The function of tax treaties: treaty residence

When both Sweden and a person’s home country claim the right to tax the same income, international double taxation arises unless a treaty regulates the conflict. This is where tax treaties come in. . Sweden currently has  tax treaties with around eighty countries.

These treaties are generally based on the OECD Model Tax Convention and determine, through the residence article, which country is to be treated as the person’s state of residence when both countries consider themselves to hold that role under their own domestic law.

The determination is made through a fixed order of priority, the tie breaker rule: first, where the person has a permanent home available, second, where the person’s centre of vital interests lies, meaning where personal and economic relations taken together are strongest, third, where the person has a habitual abode, fourth, citizenship, and finally, through agreement between the competent authorities. Once the state of residence is established, the treaty’s remaining provisions allocate taxing rights over different types of income, such as employment income, business profits, dividends, and pensions, between the state of residence and the source state.

When the home country still taxes: worldwide income clauses

There is an important distinction between countries that tax on the basis of residence (the residence principle, which applies in Sweden and most countries) and countries that tax on the basis of citizenship (citizenship based taxation). The United States and Eritrea are the best known examples of the latter. A US citizen who is resident and fully taxable in Sweden remains simultaneously taxable in the United States on worldwide income, regardless of country of residence.

The Sweden-US tax treaty also contains a provision known as a saving clause, under which the United States reserves the right to tax its citizens and residents as if the treaty did not exist, subject to a specific list of exceptions, including the rules on relief from double taxation, non-discrimination, and the mutual agreement procedure. In practice, this means a US citizen resident in Sweden cannot rely on the treaty’s residence article to fully avoid US taxation, and is instead dependent on foreign tax credit mechanisms in both countries to avoid paying full tax twice. This is a structural complexity that differs from what applies to citizens of residence based tax systems, and it is a reason why US citizens should generally expect a more extensive tax review when moving to Sweden than citizens of most other countries.

When a tax treaty is wholly or partly absent

Sweden’s treaty network is extensive , but not complete.

One example is the United Arab Emirates, where Sweden lacks a full double taxation treaty and instead only has an agreement on the exchange of information in tax matters. In the absence of a treaty, there is no residence article to rely on, no agreed reduced withholding tax rates, and no binding mutual agreement procedure between the authorities.

This does not mean double taxation is unavoidable. Swedish domestic law provides a unilateral right to a foreign tax credit even without a treaty, but this right is capped, credit is never granted beyond the Swedish tax actually attributable to the foreign income. The difference compared with treaty based relief is therefore not that protection is absent altogether, but that the protection is weaker, more technical to calculate, and without the dispute resolution mechanism a treaty normally provides.

Summary

    • Citizenship does not, in itself, determine Swedish tax liability. Residence, habitual stay, or essential connection do, with different consequences for employees and business owners.
    • For business owners, the situation may need to be assessed on two levels: the individual’s own connection to Sweden, and the company’s potential permanent establishment here.
    • Tax treaties resolve the most common conflict, dual residence, through a fixed order of priority in the treaty’s residence provision.
    • Some home countries, most notably the United States, retain the right to tax their citizens regardless of residence through clauses that override the treaty’s main rule.
    • Where a tax treaty is wholly or partly absent, protection against double taxation is weaker and more technical to achieve, though not non-existent.

    Anyone moving to Sweden, or already resident here, with ongoing economic or personal ties to another country, whether personally or through a company, should have a combined review carried out of both the Swedish connection assessment and the home country’s own rules, before assuming which country actually holds the taxing right.

Have you moved to Sweden, are you considering doing so, or have you moved away but retained ties to Sweden, such as a home, shareholdings, family, or other commitments, and are unsure whether this means you are still liable to pay tax here? The same applies if your foreign company has a representative or employee operating from Sweden. The question of where tax liability actually lies, both for you and, where applicable, for the company, is rarely straightforward. The earlier it is examined, the greater the opportunity to act proactively before the Swedish Tax Agency makes that assessment on your behalf.

Get in touch with us at info@strathus.se or via the contact form, and we will review your situation and explain what applies in your case. We typically respond within two business days.

Disclaimer
At Strathus, our purpose is to contribute to a better tomorrow by building trust in our business, in society, and by addressing important issues facing entrepreneurs and businesses. Our objective is to provide high-quality advisory services in business law, sustainability, and taxation. This publication is intended as general guidance on matters of interest and does not constitute professional advice. Readers should therefore not act on the basis of the information contained in this publication without first obtaining specific, tailored professional advice. To the extent permitted under Swedish law, no warranty (express or implied) or representation is given regarding the accuracy or completeness of the information provided. Strathus AB accepts no responsibility for any consequences arising from actions taken or not taken based on the information in this publication, or for decisions made in reliance on such information.

© 2026 Strathus AB. All rights reserved. Strathus refers to Strathus AB (Company Registration No. 559514-8270), a Swedish company specializing in legal, sustainability, and tax advisory services. For more information, please visit our website at Strathus.se
Get in touch to find out how we can help

Do you need advice on Swedish tax law? We are here to help.

We help you navigate Swedish tax matters – whether it concerns ongoing advisory work, contacts with the Swedish Tax Agency (Skatteverket) or strategic ownership questions. Get in touch and we will tell you more.

Can my foreign company become taxable in Sweden if I, as owner or employee, live here?

A separate question can arise as to whether the company has created a permanent establishment in Sweden, distinct from the question of your own personal tax liability. This is determined by its own assessment.

Does essential connection apply to someone moving to Sweden for the first time?
No. The essential connection rule in Chapter 3, Section 7 of the Swedish Income Tax Act applies to individuals who have previously been resident in Sweden. Someone moving to Sweden for the first time instead becomes taxable through residence or habitual stay in Sweden.
Will I automatically become liable for tax in Sweden if I am a citizen of another country but live here?

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Yes. Citizenship in itself is irrelevant for Swedish tax purposes. Anyone who is resident in Sweden is subject to unlimited tax liability in Sweden under Chapter 3, Section 3 of the Swedish Income Tax Act (Inkomstskattelagen, IL), regardless of the nationality or passport they hold.
Does Sweden have tax treaties with all countries?

 

No. Sweden has tax treaties with around eighty countries, but it does not have comprehensive tax treaties with certain states, such as the United Arab Emirates.
Can I be taxed in both Sweden and my home country on the same income?

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This can occur, particularly if your home country taxes individuals based on citizenship rather than residence, or if there is no tax treaty between Sweden and the other country. Tax treaties and Sweden’s foreign tax credit rules help reduce the risk of double taxation, but they do not always eliminate it entirely.
Do you advise on international tax matters?

Yes. We advise foreign companies with operations or employees in Sweden, international owners of Swedish companies, and individuals with cross-border tax obligations. Our areas of expertise include permanent establishment risk, SINK and non-resident taxation, tax treaties, VAT in cross-border transactions, and the Swedish closely held company rules (3:12) as they apply to non-resident owners.

We advise in both Swedish and English.

Do you also advise private individuals?

Yes. We advise private individuals on Swedish tax matters – including tax surcharges, voluntary disclosure, appeals against Skatteverket decisions, capital gains taxation, and tax issues arising from owning shares in a Swedish closely held company. We also advise individuals with international connections, including those who have emigrated from Sweden, non-residents with Swedish income, and foreign nationals with Swedish tax obligations.

What does your tax advisory service include?

We advise owner-managed companies and private individuals on Swedish tax law – both nationally and internationally. Our core areas include the closely held company rules (3:12), tax surcharges and voluntary disclosure, Skatteverket audits and inquiries, director liability, permanent establishment, SINK and non-resident taxation, corporate restructuring and ownership matters.

We act both proactively – helping you structure transactions and ownership correctly from the outset – and reactively, representing you when a matter is under investigation or in dispute with the Swedish Tax Agency (Skatteverket) or the administrative courts.

We do not handle day-to-day bookkeeping or statutory audits. If you need an accounting consultant or auditor, we are happy to point you in the right direction.

How quickly can you assist us when contacted by the Swedish Tax Agency?

We prioritise matters where Skatteverket has made contact, as timing is often critical. Response deadlines are set by Skatteverket and missing them can weaken your position significantly. Get in touch as soon as you receive any communication from the Swedish Tax Agency – the earlier we are involved, the more options are available to you.

We typically respond to new enquiries within two business days.

We have received a draft decision from the Swedish Tax Agency – can you still help us?

Yes – receiving a draft decision (förslag till beslut) is not the end of the process. You have the right to submit a written response before Skatteverket issues its final decision, and this is often where the most important argumentation takes place. Skatteverket does change its position when presented with well-founded legal arguments – a draft decision reflects the information available to Skatteverket at that point, not necessarily the correct legal outcome.

If the draft decision has already become a final decision, you can request a review (omprövning) by Skatteverket within six years, or appeal to the administrative court (förvaltningsrätten). Legal counsel at this stage can identify grounds that are not immediately obvious and significantly improve the prospects of a favourable outcome.

What happens when I first get in touch?

When you contact us, we will ask you to describe your situation briefly – what the matter concerns, any deadlines involved, and what you are looking to achieve. We will then assess whether and how we can help, and explain what the next steps would look like.

Before we can begin any engagement, we are required by Swedish law to complete a client verification process (KYC – Know Your Customer) under the Anti-Money Laundering Act (penningtvättslagen 2017:630). You can read more about what this involves on our KYC & Reporting Obligations page.

Get in touch at info@strathus.se or +46 709 85 38 00 – we respond within two business days.

Where are you based and do you work across Sweden?

We are based in Malmö, Sweden. We work with clients across Sweden and advise internationally – the majority of our engagements are conducted digitally, which means location is rarely a practical obstacle. For clients outside Sweden, all communication can be handled in English by email, telephone or video call.