Accounting rules in Sweden for foreign-owned companies: K2, K3, VAT and local requirements

For foreign finance teams, the challenge is often understanding which Swedish regulatory framework applies, how local reporting should be linked to group reporting, and which obligations arise even before the first year-end. Choosing K2 or K3 on the wrong grounds, or registering for VAT too late, can lead to unnecessary costs and risks.

This guide covers the basics of corporate taxation in Sweden, the K2 and K3 rules for 2026, VAT registration, annual accounts, and when local accounting expertise  may be needed in practice.

Which accounting rules apply to foreign-owned companies in Sweden?

A foreign-owned Swedish subsidiary is, in principle, subject to the same rules as other Swedish companies. The company must keep ongoing bookkeeping in accordance with the Bookkeeping Act, prepare annual accounts under an applicable Swedish accounting framework – usually K2 or K3 – and meet relevant requirements regarding corporate income tax, VAT, payroll, archiving and reporting.

Foreign ownership therefore does not mean that the company is covered by a separate accounting system. A Swedish limited company (aktiebolag) is a Swedish legal entity even if it is wholly owned by a foreign parent company. The board still has ultimate responsibility for ensuring that the company complies with applicable rules, even if the accounting is outsourced or handled through the parent company’s systems.

In practice, the local accounting set-up should include:

• ongoing bookkeeping with supporting vouchers and documentation,

• registration for VAT, employer social security contributions and preliminary tax where appropriate,

• reconciliations and ongoing tax returns,

• annual accounts prepared under the correct K framework, and

• filing the annual accounts with the Swedish Companies Registration Office (Bolagsverket) within the statutory deadline.

A Swedish limited company must hold an annual general meeting within six months of the end of the financial year. At the AGM, decisions must be made, among other things, to adopt the profit and loss account and balance sheet, on the appropriation of the company’s profit or loss, and on discharge from liability for board members and the managing director where such a decision is relevant.

The annual accounts must then be filed with Bolagsverket no later than seven months after the end of the financial year. The requirement also applies to dormant limited companies. Late or incomplete filing can result in late fees, and Bolagsverket does not grant extensions to the deadline for filing annual accounts.

In many cases, annual accounts can be filed digitally with Bolagsverket via software or a service that supports digital filing. This does not mean that an ordinary PDF can be sent by email. The digital annual accounts and the confirmation statement must be handled in accordance with Bolagsverket’s technical and formal requirements. Companies should therefore check that the accounting software or service they use supports digital filing.

How do the rules differ for a Swedish branch?

A Swedish branch is not a separate legal entity but part of the foreign company. Therefore, certain accounting and reporting requirements differ from those that apply to a Swedish limited company.

Branches may be subject to Swedish requirements for ongoing bookkeeping and reporting to Bolagsverket, but exactly which documents must be prepared and filed depends, among other things, on the foreign company’s legal form, home country and the rules that apply to the specific branch.

The requirements for a Swedish limited company’s annual accounts should therefore not automatically be applied to a branch. Companies operating in Sweden through a branch should make a separate assessment of the branch’s bookkeeping, audit and reporting obligations.

How does corporate taxation work in Sweden for foreign-owned companies?

Corporate taxation in Sweden typically includes corporate income tax on taxable profit, preliminary tax paid during the year, VAT on VAT-liable transactions, and employer social security contributions and tax withholdings when the company has employees.

The exact obligations depend, among other things, on whether the business is carried out through a Swedish subsidiary, a branch, a permanent establishment, or through cross-border sales.

The legal form matters greatly. A Swedish subsidiary is a separate taxable legal entity. A branch, on the other hand, is part of the foreign legal entity. A foreign company that has neither a Swedish subsidiary nor a branch may still have Swedish tax or reporting obligations depending on what activities are carried out in Sweden.

Registrations should therefore be based on what the company actually does in Sweden – not solely on what the group’s organisation chart looks like.

For example, a company may need to apply for approval for F-tax and register for VAT and as an employer with the Swedish Tax Agency (Skatteverket). Cross-border transactions may also require assessments of transfer pricing, withholding tax and the risk of a permanent establishment arising in Sweden.

Corporate income tax on the company’s profit

Swedish limited companies pay corporate income tax at 20.6 per cent of taxable profit in 2026.

The reported result is the starting point, but Swedish tax adjustments determine the final taxable result. Companies normally pay preliminary tax monthly based on an estimated annual result and file an income tax return after the end of the financial year.

Swedish accounting also forms the basis for the group’s consolidation. Differences between Swedish accounting principles and the group’s principles should be mapped and documented rather than corrected informally in connection with the group year-end.

Intra-group services, financing, royalties and flows of goods should be documented and priced in accordance with the arm’s length principle.

Employer social security contributions and payroll-related taxes

Hiring staff in Sweden entails additional reporting obligations.

Employers must normally withhold tax from salary, pay employer social security contributions, and report remuneration and deductions through monthly employer declarations.

The standard employer contribution is 31.42 per cent for most employees in 2026, although reduced rates and other exceptions may apply.

Payroll accounting must be reconcilable with the general ledger, the tax account, benefits, holiday pay liability, pensions and payments to employees. Swedish payroll administration and accounting should therefore be seen as interconnected processes with clear responsibility for the reconciliations.

What are K2 and K3 – and which framework applies to my company?

K2 is a simplified, rules-based accounting framework that can be used by smaller companies that meet the criteria. K3 is the main principles-based framework for Swedish annual accounts and is mandatory for larger companies and for certain companies that are not allowed to use K2.

Whether a company is foreign-owned does not determine which framework must be used. The assessment is instead based on, among other things, the company’s size, activities, structure and the specific restrictions that apply from 2026.

K2 is designed for less complex operations and restricts certain accounting choices. K3 requires more analysis, documentation and disclosures.

Larger companies must use K3 unless another framework is more appropriate. A smaller company that meets the requirements for K2 can generally choose to apply K3 voluntarily.

The assessment changed for financial years beginning after 31 December 2025. Under the updated rules, there are several categories of companies that are no longer allowed to use K2, regardless of size.

This includes, among other things, companies that have, or during the financial year have had, one or more branches outside Sweden. The restriction therefore concerns a Swedish company’s own foreign branches – not a Swedish subsidiary solely because it has a foreign parent company.

Other restrictions include, among other things, certain direct holdings of crypto assets, share-based payments and certain compound financial instruments.

Restrictions may also affect certain companies that own income-generating buildings or have significant deferred tax liabilities, taking into account the relief rules that may apply to smaller companies.

How to do it right: Assess the company’s eligibility to use K2 before the financial year and make a new assessment when the business model changes. A new foreign branch, an employee incentive programme, property operations or transactions involving crypto assets can affect which framework may be used.

For a complete review of the rule changes for 2026, see BTR guide to the K2 and K3 rules in Sweden.

K2 compared with K3

Moving from K2 to K3 is not just about using a different annual accounts template.

The change can affect accounting, depreciation, deferred tax, disclosures, opening balances and results. The company should therefore plan the transition well in advance in order to gather information on, for example, components, valuations and historical acquisition values that may not be available in the group’s reporting package.

How does VAT registration work for a foreign company selling in Sweden?

A foreign company may need to be VAT-registered in Sweden when it carries out VAT-liable transactions here, but Swedish sales do not automatically mean that Swedish VAT registration is required.

The assessment depends, among other things, on the place-of-supply rules, who the customer is, what type of goods or services are sold, reverse charge rules, EU distance selling rules, and whether the supplier has a fixed establishment in Sweden.

The Swedish standard VAT rate is 25 per cent. For certain goods and services, reduced VAT rates of 12 or 6 per cent apply, while other transactions are exempt from VAT.

Which VAT rate applies must be assessed based on the actual good or service. A particularly important change in 2026 is that VAT on food sold as goods was reduced to 6 per cent from 1 April 2026, while restaurant and catering services generally continue to be subject to 12 per cent VAT.

A Swedish subsidiary is normally VAT-registered if it carries out VAT-liable activities. For a foreign seller, Swedish VAT registration, reverse charge or an EU scheme such as One Stop Shop (OSS) may instead be relevant.

Import VAT, intra-Community acquisitions and transfers of own goods need to be analysed separately.

The terms “permanent establishment” and “fixed establishment” should not be used as synonyms. Permanent establishment is primarily an income tax concept, while fixed establishment is relevant for VAT.

A company may therefore reach different conclusions under the two assessments, which can, among other things, affect who must account for the VAT and how invoices and VAT returns should be handled.

How to do it right: Map the VAT handling before the first invoice or movement of goods. Confirm which legal entity is responsible, whether VAT registration is required, which VAT rate applies, what information the invoice must contain, the right to deduct input VAT, and how often VAT must be reported.

BTR overview of VAT and tax handling shows how these obligations can be coordinated locally.

Do I need a local accounting consultant if I have a subsidiary in Sweden?

Swedish law does not generally require every subsidiary to engage an external local accounting consultant. However, the subsidiary must ensure that bookkeeping, tax reporting and annual accounts comply with Swedish rules.

Local support is often the practical option if the group lacks up-to-date Swedish accounting expertise, the ability to handle Swedish reporting requirements, or a clear allocation of responsibility for recurring local deadlines.

A foreign finance team can process transactions centrally, but access to an accounting system is not the same as local compliance.

Consider engaging a Swedish accounting partner if:

• the parent company’s finance team has not previously prepared Swedish annual accounts,

• the company is unsure whether K2 or K3 should be used,

• Swedish VAT, payroll, benefits or cross-border transactions are relevant,

• the local general ledger is based on the group’s accounting policies without a documented bridge to Swedish accounting standards,

• there is no clear person responsible for reconciliations between the bookkeeping, the tax account and filed returns,

• the company needs support in preparing the annual accounts and filing them digitally with Bolagsverket, or

• management needs a local point of contact for matters relating to Skatteverket and Bolagsverket.

An accounting consultant and an auditor have different roles.

The accounting consultant helps with bookkeeping and reporting, while the auditor independently reviews the company’s accounting and administration within the scope of the audit engagement.

Smaller private limited companies may, under certain conditions, choose not to have an auditor, while companies that exceed relevant thresholds or are subject to statutory audit for other reasons must have an auditor.

Outsourcing the accounting to an external party never transfers the board’s ultimate legal responsibility to the supplier.

In addition to ongoing bookkeeping, foreign-owned subsidiaries often need local support with VAT reporting, payroll-related taxes and the assessment of whether K2 or K3 should be used.

How to ensure correct accounting for a foreign-owned company in Sweden

Swedish accounting rules are structured and clear, but they must be applied to the local operations – they cannot be replaced by the group’s reporting principles.

A well-functioning solution links bookkeeping, payroll, VAT, tax, annual accounts and group reporting from the company’s very first transaction.

Before operations start, the company should ensure five things:

1. Which Swedish legal entity or which foreign company carries out each sale and is the employer for each employee?

2. Which tax and VAT registrations are required, and from what date?

3. Is the company allowed to use K2 in 2026, or does it need to prepare for K3?

4. How should Swedish accounting be reconciled with the group’s reporting package?

5. Who is responsible for each return, payment, reconciliation and contact with Swedish authorities?

BTR accounting services can bring these workflows together in one place – from ongoing bookkeeping and K2/K3 assessment to VAT registration and local reporting.

Are you unsure whether K2 or K3 applies to your Swedish subsidiary? Contact our accounting team.

Frequently asked questions about accounting and annual accounts in Sweden

Does a dormant limited company have to file annual accounts?

Yes. A Swedish limited company must prepare and file annual accounts even if the company is dormant and has not carried out any activities during the year.

The fact that the company has no sales, employees or active operations therefore does not mean that the obligation to prepare and file annual accounts disappears. The annual accounts must be filed with Bolagsverket within the ordinary deadline.

A dormant company may also still have other administrative obligations depending on which registrations the company retains with, for example, Skatteverket.

Can a Swedish company file the annual accounts in English?

Companies with international owners often use English for internal reporting and group reporting. However, this does not automatically mean that the Swedish statutory annual accounts can be replaced by the group’s English reporting.

The annual accounts filed with Bolagsverket must meet the Swedish formal and language requirements that apply to the company and the reporting. Companies that wish to prepare or file documents in English should therefore check what is permitted in the individual case and, if necessary, produce a Swedish version for statutory reporting.

Do the annual accounts have to be filed digitally?

Digital filing is possible for many Swedish limited companies and can be done through software or services that support Bolagsverket’s digital filing.

Digital filing does not mean that the company sends an ordinary PDF file by email. The annual accounts must be filed in the format and through the technical solution that Bolagsverket accepts, and the persons who must sign or submit the confirmation statement must comply with the requirements that apply to the process.

The company should check which digital filing options apply to the relevant annual accounts and that its accounting software supports the process.

Does a foreign-owned Swedish company have to use K3?

No. Foreign ownership in itself does not mean that a Swedish company must use K3.

Which framework must be used depends, among other things, on the company’s size, activities and structure, and on the specific restrictions that apply to K2. From 2026, the possibility of using K2 has been further restricted for certain categories of companies.

Does a Swedish subsidiary need to have a Swedish accounting consultant?

Not necessarily. There is no general requirement that a foreign-owned subsidiary must engage an external Swedish accounting consultant.

However, the company must ensure that bookkeeping, taxes, VAT and annual accounts are handled in accordance with Swedish rules. For international groups without in-house Swedish accounting expertise, local support is therefore often the most practical way to ensure correct reporting and meet Swedish deadlines.

This article contains general information and does not constitute accounting, legal or tax advice. Which requirements apply depends on the company’s structure, activities, transactions and reporting period.

Last reviewed: September 2026

Written by Elise Bredenberg
Marketing Manager at BTR Group

Fact-checked by Catarina Göthe
CEO at BTR Group