Legal forms of business in Sweden 2026: AB, sole trader, partnership or branch

Last reviewed: November 2026 · Reviewed by Stéphane Gombauld, tax expert, technologist and digital nomad

You are about to invoice your first Swedish client, bring in a co-founder or open a Swedish arm of a foreign company. The legal form decides your liability, tax and how you get money out. Here are each structure's 2026 costs and tax, the remote-management risks and the new 3:12 rules.

Sweden legal forms of business in 2026: the key figures

ABL is the Aktiebolagslag (2005:551), the Companies Act. IL is the Inkomstskattelag (1999:1229), the Income Tax Act.

What changed for 2026

• New 3:12 rules from income year 2026. One calculation rule replaces the old simplified and main rules. The basic amount is four income base amounts, SEK 322,400 for 2026, per Skatteverket.
• No more 4% ownership and salary requirements for the salary-based allowance. It is now 50% of your share of wages above eight income base amounts, SEK 644,800.
• One basic amount per owner, no interest uplift. You get the basic amount once, however many companies you own. Saved dividend space no longer grows with interest, and the waiting period after a company stops being closely held drops from five to four years.
• Temporary employer contribution cut for young staff. For employees born 2003–2007, the rate is 20.81% on pay up to SEK 25,000. It runs from 1 April 2026 to 30 September 2027.

Is this guide for you?

Read on if you…

• are a freelancer or consultant choosing between sole trader registration and an AB;
• are founding a company in Sweden, alone or with partners, possibly with investors later;
• run a foreign company and need a Swedish presence: branch or subsidiary.

Probably not your case if you…

• are a Swedish employee with no plans to invoice. Your questions are in personal tax deductions and benefits in Sweden;
• want a non-profit association or a housing cooperative, which follow separate rules.

Which Swedish business forms exist, and how do they compare?

Fees are from the verksamt.se fee list, the official joint portal of Bolagsverket and Skatteverket. Paper forms cost SEK 300 more, except for branches.

Should you be a sole trader or an AB?

This is the question most freelancers ask first. Here's the honest answer.

The sole trader (enskild näringsverksamhet)

You register for F-tax (F-skatt, the approval that lets clients pay you without withholding) and VAT with Skatteverket, free of charge. Profit is taxed as your personal business income. Municipal tax averages 32.38% in 2026, and state tax of 20% applies to taxable income above SEK 643,000.

You also pay egenavgifter of 28.97%. When calculating, you take a standard 25% deduction for them, per Skatteverket's 2026 amounts. Two smoothing tools help. A tax allocation reserve (periodiseringsfond) takes up to 30% of profit, reversed within six years. An expansion fund is taxed at 20.6% until you withdraw it.

Pros: no capital, minimal admin, private pension deduction of up to 35% of business income. Cons: unlimited personal liability, and profit hits your marginal rate in the year it is earned.

The limited company (aktiebolag)

You deposit SEK 25,000 as share capital, get a bank certificate, draft the founding documents and register with Bolagsverket. The company pays 20.6% on profits. You pay yourself salary, on which the company adds 31.42% employer contributions, and take the rest as dividends.

The 3:12 rules (57 kap. IL) govern owner-managers of closely held companies (fåmansföretag). Dividends within your annual limit (gränsbelopp) are taxed on two-thirds in the capital category at 30%, an effective 20%. From 2026 the limit combines a basic amount of SEK 322,400 with a salary-based allowance. You get the basic amount only once, across all your companies. That allowance is 50% of your share of company wages above SEK 644,800, capped at 50 times your own cash salary. Dividends above the limit lose the 20% treatment.

Pros: limited liability, 20.6% on retained profit, 20% on dividends within the limit. Cons: a yearly annual report, more bookkeeping and capital tied up.

The decision rule

If liability matters, the AB wins at any profit level. Otherwise, it pays off once you can leave profit in the company or use the full basic amount. A sole trader can only hold profit back through the 30% reserve and the expansion fund. Model your own numbers with your real costs: see business expenses in Sweden.

How do you set up an AB in Sweden, step by step?

1. Check the name. AB and branch names are protected nationwide; sole trader and HB names only in their county.
2. Deposit at least SEK 25,000 in cash or contribute assets in kind. The bank issues a certificate, or an auditor values the contribution.
3. Draft the founding document (stiftelseurkund), articles of association (bolagsordning) and share register (aktiebok).
4. Appoint the board. At least one ordinary member and one deputy. With two or more members, one must chair.
5. Register with Bolagsverket via verksamt.se for SEK 2,400, and report the beneficial owner (verklig huvudman) for SEK 250.
6. Register with Skatteverket for F-tax, VAT and as an employer, free of charge.
7. File an annual report with Bolagsverket every year, even when the company is dormant. Late filing triggers a fee.

Can you run a Swedish company from abroad?

Yes, with two warnings that catch location-independent founders.

Company law. The Companies Act sets a residence requirement for the managing director (8 kap. 30 § ABL), and Bolagsverket can grant exemptions. Check the board and CEO rules before you move, not after.

Tax law: management and permanent establishment. Sweden treats an AB registered here as Swedish-resident. Your new country may also claim the company if the decisions are taken there. Result: dual residence, a permanent establishment abroad and two sets of filings. The reverse also applies: a foreign company with a permanent establishment in Sweden is taxable here.

Before you leave with an AB in your pocket, read how to end your Swedish tax residency. If you are structuring across borders, Heavnn's business setup service checks entity, board and tax residence together.

Branch or subsidiary for a foreign company?

A branch (filial) is the foreign company itself operating in Sweden. It needs a managing director with a special power of attorney and gets a Swedish organisation number on registration. It pays 20.6% on profits attributable to the Swedish permanent establishment. It needs an auditor if it exceeds two of three thresholds in each of the last two years. They are: more than three employees, SEK 1.5 million total assets, SEK 3 million net turnover.

A subsidiary AB is a separate legal person. It ring-fences liability, looks local to clients and banks, and can be sold or opened to investors. EU parents holding at least 10% generally receive dividends free of Swedish withholding tax, per PwC's withholding tax summary (secondary).

Common mistakes (and what they cost)

• Staying a sole trader while profits grow. Every krona above SEK 643,000 of taxable income attracts 20% state tax on top of municipal tax. Only the 30% reserve and the expansion fund let you hold profit back.
• Taking dividends above the 3:12 limit. The excess loses the effective 20% rate and is taxed far more heavily.
• Running an AB from abroad unchecked. It can become taxable in your new country too.
• Filing the annual report late. Bolagsverket charges a late fee. Failing to prepare it on time can, in some cases, lead to prosecution for accounting offences.
• Filing the company's tax return late. Skatteverket charges SEK 6,250, 12,500 or 18,750, depending on the delay.

Frequently asked questions

What is the most common business form in Sweden?

Freelancers usually start as a sole trader because F-tax registration is free and quick. Anyone who wants limited liability, plans to retain profit or bring in partners chooses the private limited company (aktiebolag). It needs SEK 25,000 share capital, pays 20.6% corporate tax and costs SEK 2,400 to register online.

How much does it cost to start a company in Sweden in 2026?

An AB needs SEK 25,000 share capital, which stays available to the business. Add a Bolagsverket fee of SEK 2,400 online and SEK 250 for the beneficial owner report. A sole trader pays nothing to Skatteverket; registering the name costs SEK 1,800. Partnerships pay SEK 1,800 and branches SEK 3,000.

Can a foreigner own a Swedish AB?

Yes. Shareholders can be any nationality and live anywhere. The constraints sit elsewhere. Think of residence rules for the managing director, Swedish banks' identification checks, and the tax risk of managing the company from abroad. Plan these before registration rather than after you move.

What are the 3:12 rules in Sweden in 2026?

They set how owner-managers of closely held companies are taxed on dividends and gains. From income year 2026 there is one calculation rule: a basic amount of SEK 322,400 plus 50% of your share of wages above SEK 644,800. Dividends within that limit are taxed at an effective 20%.

What is the corporate tax rate in Sweden in 2026?

20.6% on taxable profits of companies, branches and cooperatives. Sole traders and partners in HBs and KBs do not pay it. They pay personal income tax on their share of profit plus 28.97% self-employment contributions. An expansion fund lets sole traders park profit at 20.6% until withdrawn.

Do I need an auditor for my Swedish AB?

Most newly started private ABs can choose not to have one. A company that grows past the statutory size thresholds must appoint one, and public companies always follow stricter rules. Branches need an auditor if they exceed two of three thresholds in each of the last two years.

Related guides

• Business expenses in Sweden
• How to end your Swedish tax residency
• How to obtain tax residency in Sweden
• Specific taxes in Sweden: VAT, payroll and property
• Legal forms of business in Austria
• Business forms and independent professional statuses in Malta
• All country tax guides

Sources

• Välj företagsform – verksamt.se (Bolagsverket, Skatteverket)
• Avgifter för ärenden – verksamt.se
• Aktiebolagslag (2005:551) – Sveriges riksdag
• Ändrade 3:12-regler inför inkomstdeklarationen 2027 – Skatteverket
• Belopp och procent, inkomstår 2026 – Skatteverket
• Filial – verksamt.se
• Sweden: Corporate withholding taxes – PwC Worldwide Tax Summaries (secondary)

This guide is general information, not personalised tax advice. See how we research and review.