Should I operate as enskild firma or aktiebolag (AB) in Sweden?
For annual profits below approximately SEK 400,000, an enskild firma is usually simpler and cheaper to run. Above this level, the tax savings from operating as an AB (20.6% bolagsskatt vs up to 52% personal income tax) typically outweigh the additional administrative costs. The 3:12 rules make dividends from an AB particularly tax-efficient.
Detailed Explanation
The decision between enskild firma (sole trader) and aktiebolag (AB) is one of the most consequential choices for Swedish entrepreneurs. Both structures are widely used, but they differ significantly in tax treatment, liability, administrative burden, and strategic flexibility.
What is an enskild firma?
An enskild firma is a sole tradership — the simplest business form in Sweden. There is no legal separation between the owner and the business. You register with Skatteverket and, if applicable, Bolagsverket. No minimum capital is required. Profits from the enskild firma are included in your personal income tax return (Inkomstdeklaration 1, Bilaga NE). You pay egenavgifter (self-employed social contributions) instead of arbetsgivaravgifter.
What is an aktiebolag (AB)?
An AB is a separate legal entity from its owner. It files its own corporate tax return and pays 20.6% bolagsskatt. The owner extracts value through salary (subject to personal income tax and the AB pays arbetsgivaravgifter) and/or dividends (subject to the K10 3:12 rules — 20% on dividends within the gränsbelopp).
The tax comparison
Enskild firma profit flows straight to your personal income tax. With Swedish municipal tax (~32%) plus national tax (20% above SEK 598,500), effective marginal rates can reach 52%. Add egenavgifter (~28.97% for standard under-65 sole traders on net profit), and the total tax burden is very high at higher income levels.
AB: bolagsskatt at 20.6% on company profits. Salary taken from the AB is subject to personal income tax plus arbetsgivaravgifter (31.42%). But dividends within the K10 gränsbelopp are taxed at just 20%. Optimal planning for an AB owner typically involves: 1. Taking a salary sufficient to maximise the K10 salary-based gränsbelopp addition 2. Taking only enough salary to manage personal cash needs (below the statlig skatt threshold of SEK 598,500) 3. Retaining additional profits in the AB at 20.6% 4. Distributing dividends within the K10 gränsbelopp at 20%
The break-even profit level
Most Swedish tax advisers cite approximately SEK 400,000-500,000 annual profit as the level where the AB structure starts to save more in tax than the additional administrative costs (accountant, Bolagsverket fees, potentially revisor) add up to. Below this level, enskild firma is typically simpler and broadly equivalent.
Liability
Enkild firma: unlimited personal liability. If the business incurs debts or is sued, your personal assets are at risk.
AB: limited liability. Shareholders' risk is capped at their share capital contribution (minimum SEK 25,000). This is a significant reason some entrepreneurs choose AB even at lower profit levels — protection against business risk.
Credit and professional perception
For some clients and financial institutions, operating as an AB conveys more permanence and creditworthiness. Government contracts, larger corporate clients, and bank lending can be easier as an AB. This is particularly relevant in consultancy, IT, and professional services where AB is the norm.
Converting from enskild firma to AB
Converting an ongoing enskild firma to an AB is possible but can trigger tax consequences. Assets transferred to the new AB must be sold at market value (which can crystallise capital gains). Most advisers recommend starting fresh with an AB and winding down the enskild firma organically. The expansionsfond balance in an enskild firma can be carried over to a new AB in some circumstances under specific rollover rules.
F-skatt and the enskild firma
Enkild firma owners must hold F-skatt (self-employment tax status) from Skatteverket. This confirms to clients that they should not withhold A-skatt when paying invoices. Without F-skatt, clients must withhold tax — which is commercially awkward and can deter some larger clients.
Source: https://www.skatteverket.se/foretagochorganisationer/foretagare/enskildnariingsidkare.html
Real-World Examples
Freelancer earning SEK 300,000/year
A part-time freelance writer earns SEK 300,000/year net profit. As an enskild firma, she pays approximately 28-32% effective income tax plus egenavgifter. The administrative cost of an AB (accountant SEK 15,000/year, Bolagsverket fees) would likely exceed any tax saving at this profit level. Enskild firma is the right choice.
Consultant earning SEK 800,000/year
A management consultant earns SEK 800,000 net profit. As enskild firma: marginal rate above SEK 598,500 = ~52%. As AB: bolagsskatt 20.6%, dividends within K10 gränsbelopp at 20%. Over 5 years, the AB saves hundreds of thousands in tax. Administrative cost of AB (SEK 20,000/year accountant) is easily justified.
Creative agency with two founders
Two designers want to start an agency together. Enskild firma is not available for partnerships (they would need a handelsbolag). An AB is the natural choice — it accommodates two shareholders, allows different share classes for dividend flexibility, and provides limited liability protection. The SEK 25,000 minimum capital is easily met.
Common Mistakes to Avoid
- Choosing an AB at very low profit levels (under SEK 200,000) and incurring unnecessary accounting costs that exceed any tax saving
- Assuming enskild firma has no administrative requirements — it still requires bookkeeping, momsdeklarationer, and a Bilaga NE on the personal tax return
- Not taking the liability protection benefit into account — for service businesses with contract risk, AB protection can be valuable even at lower profit levels
- Forgetting F-skatt registration when setting up an enskild firma — critical for freelancers invoicing business clients
Frequently Asked Questions
What is the profit threshold for choosing AB over enskild firma?
The commonly cited threshold is SEK 400,000-500,000 annual profit. Above this, the tax saving from AB's 20.6% bolagsskatt plus K10 dividends at 20% typically exceeds the additional admin costs of running an AB.
Can I have employees in an enskild firma?
Yes. An enskild firma can employ staff and must register as an employer with Skatteverket. The employer obligations (arbetsgivaravgifter, AGD filing) are identical to those of an AB.
Can I convert my enskild firma to an AB?
Yes, but it may trigger tax consequences on asset transfers. The cleanest approach is usually to start a new AB and wind down the enskild firma, rather than a formal legal conversion. Take advice from a Swedish redovisningskonsult before converting.
Is an enskild firma visible to the public?
An enskild firma registered with Bolagsverket appears in the public Handelsregister. Sole traders with SEK 120,000+ turnover must also register with Skatteverket. Your personal name is linked to the business — there is no separate legal identity.
Which is simpler to close down — enskild firma or AB?
Enskild firma is much simpler to close. Deregister with Bolagsverket and Skatteverket, wind down any remaining tax obligations, and it is done. Closing an AB requires a formal liquidation (likvidation) process through Bolagsverket, which takes several months.
Practical Tips
- Use the enskild firma during early testing phases (low cost, quick to start) and plan to incorporate an AB when profits reliably exceed SEK 400,000
- Get a quote from a redovisningskonsult for ongoing AB administration costs before incorporating — if it costs SEK 25,000/year and you save SEK 30,000 in tax, the margin is thin
- If you need liability protection immediately (e.g. large client contracts with meaningful risk), incorporate an AB regardless of profit level
- File F-skatt registration immediately when starting your enskild firma — without it, larger corporate clients cannot pay you without withholding tax
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