Small Business Tax in Sweden

What corporate income tax rate does a Swedish aktiebolag pay?

A Swedish aktiebolag (AB) -- a private limited company registered under the Aktiebolagslagen (SFS 2005:551) -- pays bolagsskatt (corporate income tax) at a flat rate of 20.6% on taxable net income. This rate has applied since 1 January 2021, when it was reduced from 21.4% (itself reduced from 22% in 2019), completing a three-step reform that started in 2018. The Swedish government proposed a further reduction to 20% effective 1 January 2026, but that proposal was not enacted in the final 2026 budget; the rate remains 20.6% for fiscal years beginning in 2026 [Skatteverket, Corporate Income Tax]. Taxable income is computed on an accrual basis; Sweden permits group contribution deductions between affiliated AB entities, allowing intra-group profit equalisation before the AB-level tax is applied.

Forming an AB requires a minimum share capital (aktiekapital) of SEK 25,000, reduced from SEK 50,000 by SFS 2019:761 effective 1 January 2020. Registration is handled via verksamt.se, the joint government portal of Skatteverket, Bolagsverket, and Tillvaxtverket. A single individual may form and own 100% of a private AB.

How do the 3:12 rules govern owner-manager dividends in a famansbolag?

A famansbolag (closely-held company) is an AB where four or fewer owners together hold more than 50% of the votes -- which covers almost every owner-managed AB. The 3:12 rules (Chapters 56-57 of Inkomstskattelagen, SFS 1999:1229) prevent owner-managers from converting salary income into lower-taxed dividends by creating an annual gransbelopp (dividend allowance). Dividends received within the gransbelopp are taxed at a preferential flat rate of 20% (capital income). Dividends above the gransbelopp are reclassified as employment income and taxed at the owner's marginal rate -- which can reach 50-55% including municipal income tax.

For income year 2025 (tax return filed in 2026), owners calculate the gransbelopp under one of two methods:

• Forenklings-regeln (simplified rule): A fixed allowance of 2.75 times the inkomstbasbelopp (IBB). With IBB set at SEK 76,200 for 2024 (used for 2025 calculation), this produces a gransbelopp of approximately SEK 209,550 per owner.
• Huvud-regeln (main rule): Based on 50% of total company payroll above a salary threshold (approximately SEK 731,520 for 2025, equal to six times IBB plus 5% of total wages), plus a capital-based component of 9% of the share acquisition cost. This method typically produces a larger gransbelopp for companies with significant employee wage bills.

Unused gransbelopp carries forward to future years, historically indexed at the state borrowing rate plus 3 percentage points. From 1 January 2026 a reformed unified framework replaces both methods: the basic allowance rises to four income base amounts (SEK 322,400 for 2026), the salary component becomes 50% of total wages above eight income base amounts (SEK 644,800), and carried-forward allowances are no longer indexed -- they roll forward at nominal value [Leinonen Sweden, 3:12 Rules 2026; PwC Sweden, New 3:12 Rules 2026].

The K10 supplementary form (Inkomstdeklaration 1) captures the gransbelopp calculation. From 2026 filing is mandatory every year regardless of whether a distribution was taken.

What is F-skatt and why does every Swedish business need it?

F-skatt (Foretagarskatt, business tax registration) is a certificate issued by Skatteverket confirming that a business is registered to pay its own preliminary income tax and social contributions. It is not a separate levy -- it is a status classification. An individual or company with F-skatt is responsible for calculating and remitting preliminary tax (preliminarskatt) in monthly instalments; a client paying them does not need to withhold tax. Without F-skatt, any Swedish client is legally obliged to deduct 30% A-skatt from payments and remit it to Skatteverket on the payee's behalf, which most Swedish companies refuse to do in practice [Skatteverket, F-skatt registration].

Registration is done via verksamt.se. Applicants provide an estimate of expected annual profit; Skatteverket calculates the monthly preliminary-tax instalment accordingly. The estimate can be revised mid-year if actual income differs significantly. F-skatt registration is typically granted within a few days for new businesses with no adverse tax history. An owner-manager who also draws salary from another employer uses FA-skatt, which combines both classifications.

What are the tax obligations for an enskild firma (sole trader)?

An enskild firma (enskild naringsverksamhet, sole proprietorship) is the simplest Swedish business form -- no share capital, no separate legal entity, unlimited personal liability. The sole trader declares business profit on the NE annex of their personal income tax return. Profit is taxed as earned income at the municipal income tax rate (approximately 30-33% depending on municipality) plus national income tax (20%) above approximately SEK 598,500 for 2025.

In addition to income tax, a sole trader pays egenavgifter (self-employment social contributions) at 28.97% of net profit. The components mirror the employer contribution structure: old-age pension 10.21%, survivors pension 0.60%, health insurance 3.64%, parental insurance 2.60%, occupational injury 0.20%, labour market 0.10%, general payroll tax 11.62% [Verksamt.se, Social Security Contributions for Sole Traders]. A deduction of 7.5% of income up to SEK 200,000 (maximum SEK 15,000) partially offsets the contributions for sole traders earning above SEK 40,000. The enskild firma also uses F-skatt registration and pays preliminarskatt monthly.

For many owner-managers, the tipping point for incorporating as an AB rather than operating as enskild firma arrives when annual profit exceeds roughly SEK 500,000-700,000. Below that level the AB's administrative costs (accounting, annual report filing, potential audit) can outweigh the tax saving. A qualified tax professional can model the crossover point for a specific situation -- see the Sweden country overview for directory listings.

How does the periodiseringsfond tax-deferral reserve work?

The periodiseringsfond is a statutory tax deferral mechanism available to both AB companies and sole traders. It allows a business to allocate a portion of taxable profit into a reserve that reduces the current year's tax base, deferring tax on that amount for up to six years. An AB may allocate up to 25% of its taxable profit (after prior-year loss deductions and reversal of earlier reserves, but before the current year's allocation). An enskild firma may allocate up to 30% [Skatteverket, Periodiseringsfond for Aktiebolag; Bjorn Lunden, Periodiseringsfond i enskild firma].

Each year's allocation forms a separate fund. The fund must be reversed into taxable income no later than the sixth tax year after the allocation year -- so a 2025 allocation must be reversed by the 2031 declaration at the latest. For an AB, Skatteverket applies a schablonintakt (notional income) of 1.96% of the opening balance of all periodiseringsfonder for 2025, which is added to taxable income in lieu of market interest. This prevents the reserve from functioning as an interest-free loan from the state. For an enskild firma, no schablonintakt applies.

The periodiseringsfond is particularly useful for smoothing taxable income across years: a profitable year's allocation reduces tax now; if a future year produces a loss, reversing the fund top-fills the profit to produce a lower combined effective rate across the cycle.

What VAT (moms) rules apply to Swedish small businesses?

Sweden charges mervardesskatt (moms) -- VAT -- at three rates: the standard rate of 25% applies to most goods and services; a reduced rate of 12% applies to hotel accommodation, restaurant services, and certain cultural admissions; and a lower rate of 6% applies to books, newspapers, passenger transport, museum admissions, and -- from 1 April 2026 -- food sales (reduced from 12%). Medical care, education, financial services, and property transactions are VAT-exempt.

From 1 January 2025, businesses with annual taxable turnover (excluding VAT) at or below SEK 120,000 are eligible for the small-business VAT exemption (smaforetagarundantaget) under Skatteverket guidance [Skatteverket, VAT Exemption for Small Businesses]. The threshold was raised from SEK 80,000 by a parliamentary decision in autumn 2024. Businesses below the threshold are not required to register for moms, charge VAT on sales, or file periodic VAT returns -- though they may elect to register voluntarily. The exemption requires the business to be established in Sweden and to have stayed below the threshold in each of the two preceding calendar years as well.

Businesses registered for moms file VAT returns monthly, quarterly, or annually depending on turnover, and remit net VAT (output tax collected minus input VAT on purchases). VAT registration is handled alongside F-skatt and business registration on verksamt.se.

What employer social contributions must a Swedish employer pay?

An AB (or sole trader) that employs staff pays arbetsgivaravgifter (employer social contributions) at 31.42% of gross salary and taxable benefits for employees born in 1959 or later. The contributions fund the Swedish welfare system and break down as: old-age pension 10.21%, general payroll tax 11.62%, health insurance 3.55%, parental insurance 2.60%, labour market contributions 2.64%, survivors pension 0.60%, and work injury contributions 0.20% [Skatteverket, Employer Contributions]. A reduced rate of 20.81% applies on the first SEK 25,000 per month for employees aged 19-23 (a temporary measure from April 2026 to September 2027). Contributions are reported and paid monthly via the PAYE return (arbetsgivardeklaration), filed on the 12th of the following month.

For a sole trader with no employees, the equivalent charge is the egenavgifter of 28.97% described above. The slight difference in rate reflects that sole traders do not access certain employer-side benefit components on the same terms as employees.

The combined cost of employing someone in Sweden -- gross salary plus 31.42% employer contributions -- means a SEK 40,000/month gross salary costs the employer approximately SEK 52,600/month in total payroll cost, before any pension supplements, vacation pay accruals, or collectively bargained benefits.

For jurisdiction-specific guidance on structuring an AB, calculating the gransbelopp under the 3:12 rules, or choosing between AB and enskild firma, consult a qualified tax professional rather than relying on general guidance. The rules are updated frequently -- the 2026 3:12 reform is the most significant change in over a decade.