Even as an employee, you're allowed to freelance on the side in Switzerland. The moment you start selling services on your own account, you count as self-employed on the side. Up to CHF 2,500 net profit a year, you don't need to register with the compensation office. Above that, registration becomes mandatory, and above CHF 100,000 in annual revenue, VAT comes into play too.

Take Sarah, a fictional UX designer in Zurich with an 80% job. On her days off, she builds websites as a freelancer for two former clients. In her first year, she earns CHF 1,800 from it: she doesn't need to register anywhere, just keep her receipts in order and declare the income on her tax return. In her second year, after costs, she's left with a net profit of CHF 9,000, which makes registering with the cantonal compensation office mandatory. These are exactly the thresholds we'll walk through here, and what happens at each one.

We built Magic Heidi because we're Swiss freelancers ourselves and went through this exact phase. This isn't a legal essay, it's a concrete playbook: what to do on day one, when you actually need a fiduciary, and where the pitfalls are that nobody puts on their website.

At a Glance

• Up to CHF 2,500 net profit a year from your side business: no mandatory AHV registration, but you still need to declare the income on your tax return.
• Above CHF 2,500 net profit a year: registering with the cantonal compensation office becomes mandatory, up to around 10% AHV/IV/EO on your net profit (less for lower profits, thanks to the reduced contribution scale).
• Above CHF 100,000 in annual revenue: VAT becomes mandatory, along with a commercial register entry as a sole proprietorship.
• Check your duty of loyalty to your main employer: this can get serious if you're doing competing business or haven't gotten their approval.
• Three factors decide your status as a freelancer: your own market presence, your own economic risk, multiple clients.

What Does "Self-Employed on the Side" Mean in Switzerland?

You're self-employed on the side when you work on your own account alongside a job or other main source of income. You issue your own invoices, carry the economic risk yourself, and present yourself externally as an independent provider. The time you spend on it typically comes to no more than about 50 percent of your total work, with the rest remaining your main job.

Whether you call yourself a freelancer, an independent professional, or self-employed doesn't actually matter. Unlike Germany, where liberal professions and trades are taxed separately, Swiss law only recognizes one category: self-employment. Authorities don't care about your job title, only what you actually do. Even a classic freelance profession like teaching, consulting, or design falls into the same category.

The compensation office checks exactly that using three questions (you'll find the overview further down as cards). If you only have a single client, you risk being classified as falsely self-employed: the authority then treats you like an employee, and your client has to retroactively pay social security contributions. Two to three clients is the sensible minimum.

Side Income vs. Main Income: Where's the Line?

There's no fixed number. In practice, the compensation office looks at several factors: your share of total income, your share of working time, whether you're still employed, and how predictable your freelance income is. If you earn 30 percent of your income from self-employment and 70 percent as an employee, you're clearly a side earner. At 60 to 40, that's a borderline case the compensation office reviews individually. If your self-employed work suddenly earns you more than your main job, plan the transition proactively instead of reactively.

Can I Freelance on the Side While Employed?

Yes, almost always. Swiss employees are generally free to take on secondary work, and you don't need special permission to do it. But there are two legal limits you need to know about first: your duty of loyalty (Art. 321a of the Swiss Code of Obligations) and any non-compete clause in your employment contract.

Roughly speaking, the duty of loyalty means you can't harm your employer through your side work. If you're an employed web designer who takes on private web design projects that could otherwise bring clients to your company, you're potentially breaching that duty. If you're a sales manager teaching yoga classes on the side, that's practically never a problem.

Check your employment contract and staff handbook. Many Swiss companies require you to report secondary work in writing once it passes a certain workload (often 10 or 20 percent). Stick to that rule.

Do I Have to Tell My Employer?

If your contract or staff handbook requires it: yes. Otherwise it's not legally required, but in practice it's often the smarter move. If your boss finds out by accident, through LinkedIn or a shared client, that you're freelancing, it quickly starts to look like you were hiding it. A short email to HR along the lines of "I offer X on the side, with no overlap with the company's business" solves 95 percent of these problems before they happen.

Want to get started right away and just need a quick, correct first invoice? Check out our invoicing software for Swiss freelancers and get going in 2 minutes.

AHV Registration: The CHF 2,500 Threshold Explained

The most important number for every part-time freelancer is CHF 2,500 net profit a year. Up to that amount, you're not required to register as self-employed with the cantonal compensation office (SVA). Once you cross the threshold, registration becomes mandatory, and you pay AHV/IV/EO contributions retroactively for the entire year. These contributions are your social security coverage: they count toward your future pension.

Important: what counts is your net profit, not your revenue. If you invoice CHF 5,000 but offset CHF 3,000 in expenses for hardware, software, and training, you're left with a profit of CHF 2,000, putting you under the threshold. For that to hold up, though, you need to have kept your receipts in order.

AHV contributions for the self-employed max out at around 10% of net profit (AHV 8.1%, IV 1.4%, EO 0.5%, plus a small administrative fee). In a side business, though, you usually pay a lot less: below around CHF 10,000 net profit, the reduced contribution scale kicks in at just over 5%. At CHF 8,000 net profit, that works out to roughly CHF 430 a year. You'll find the current contribution rates at ahv-iv.ch.

Becoming a Freelancer in Switzerland: Registration in 5 Steps

1. Get the application form. On your cantonal compensation office's website (for example svazurich.ch, sva-ag.ch, akbern.ch), you'll find the "Registration as Self-Employed" form, often fillable directly online.
2. Prepare your documents. You'll typically need: copies of your first three invoices or client contracts, a short description of your work, and possibly terms and conditions or a business card.
3. Fill out and submit the form. Use realistic revenue estimates for the first year, your provisional contribution is calculated from there.
4. Wait for the decision. The compensation office spends 4 to 8 weeks checking whether the three self-employment criteria are met, and confirms your status once approved.
5. Pay your provisional contributions. The compensation office sends you a provisional invoice every quarter, which gets corrected once your final tax assessment is in.

Practical tip: start collecting every receipt and bank statement from your very first invoice onward. Even if you're still under the CHF 2,500 threshold, you'll need them for your tax return at the latest, and retroactively if you end up registering.

How Much Can I Earn Tax-Free as a Freelancer?

Short answer: nothing. There's no tax-free allowance for side income. Every franc you earn as a freelancer is, in principle, taxable income and gets declared on top of your salary. The CHF 2,500 threshold only applies to social security (AHV), not to taxes.

What you can deduct, though, is substantial: all business-related expenses. That includes a proportional share of your computer and software costs, professional literature, coworking or home office costs, further training, business travel, a share of your phone and internet bills, marketing, and supplies. You deduct these expenses from your gross income and only pay tax on the net profit.

Pierre, a fictional IT consultant with a full-time job in Lausanne, invoices CHF 12,000 a year on the side. He deducts CHF 4,200 in expenses (a share of a new laptop, cloud tools, one coworking day a week). He pays tax on the net profit of CHF 7,800, which gets added to his salary and taxed progressively. At a marginal tax rate of 30%, that's about CHF 2,340 in extra tax and, thanks to the reduced contribution scale, around CHF 420 in AHV contributions.

Taxed at Source? Here's What Also Applies to You

If you're taxed at source (for example, as a foreign national without a C permit), your side business changes your procedure. As soon as you have self-employment income, you have to file an ordinary tax return. The exact rules differ by canton, so check with your cantonal tax office if you're unsure.

When VAT Comes Into Play

Swiss VAT becomes mandatory once your annual revenue reaches CHF 100,000. As long as your side business stays under that, you can skip VAT entirely and don't need to show any tax on your invoices. Once you can see yourself crossing the threshold, you need to register with the Federal Tax Administration, add VAT to your invoices, and file quarterly returns. Magic Heidi calculates Swiss VAT automatically and supports both the effective method and the net tax rate method.

What Do Freelancers Earn in Switzerland?

Depending on industry, experience, and region, freelancers in Switzerland typically charge between CHF 80 and 150 per hour. In IT and telecommunications, experienced specialists usually charge CHF 100 to 160, in marketing, writing, and design it's more like CHF 70 to 120, and in trades and services it's around CHF 60 to 100.

The most common mistake with a side business: using your employee hourly wage as your freelance rate. As a freelancer, you cover your own social security, vacation, sick days, client acquisition, and unpaid admin yourself. Your hourly rate needs to sit well above an employee's hourly wage, as a rule of thumb, at least double. Our Swiss hourly rate calculator shows you where you should land in 2 minutes.

Precisely because your regular salary keeps coming in, a side business is the best time to test higher rates. You don't have to take on a job that isn't worth it.

Freelance Jobs: How to Find Work in Switzerland

Most part-time freelancers land their first clients through their own network: former employers, past clients, colleagues, and referrals. That's not a coincidence, it's the most reliable channel because the trust is already there. Tell the people around you specifically what you're offering before you spend money on advertising.

After that, it's worth checking specialized platforms. A project marketplace like freelance.ch or freelancermap lists Swiss jobs on an ongoing basis, with plenty of them in IT, project management, and marketing. Many of these jobs run remotely from your home office, which combines nicely with an existing job. LinkedIn works well too: a clear profile stating "available for freelance projects" often brings in more than any job application.

A reminder from the section on false self-employment: spread your work deliberately across multiple clients. Two to three active clients protect your status and make you less dependent if one client drops off.

Sole Proprietorship or Informal: What Fits a Side Business?

For 99% of people who are self-employed on the side, the answer is: start informally, register later if you need to. Switzerland lets you operate as a sole proprietorship without a formal incorporation deed and without a notary. You don't need to "found" anything, you just start invoicing under your own name and keep your business properly documented.

A commercial register entry only becomes mandatory once your annual revenue exceeds CHF 100,000. Before that, it's optional and costs roughly CHF 200 to 400 depending on the canton, though it does give you a bit more credibility with larger clients. The Federal SME portal also offers a good overview of the different legal structures.

A GmbH (Swiss LLC) rarely makes sense for a side business. You need CHF 20,000 in share capital, double-entry bookkeeping, and higher administrative costs. Unless you're working with major liability risks, stick with the sole proprietorship. Our guide to setting up a sole proprietorship in Switzerland walks through all the options in detail.

Summary: Starting Self-Employed on the Side in Switzerland

Being self-employed on the side in Switzerland is administratively a lot simpler than most fiduciary websites make it sound. The three thresholds you need to keep in mind:

• CHF 2,500 net profit a year for mandatory AHV registration
• CHF 100,000 in annual revenue for mandatory VAT and a commercial register entry
• Duty of loyalty toward your main employer, clarified in writing or verbally

Everything else comes down to clean record-keeping, lean invoicing software, and a clear plan for your first 90 days. The cards and FAQ further down answer the typical questions you might still have at this point. If the assessment feels hard to make on your own, ask your cantonal compensation office or a fiduciary. Swiss authorities are usually surprisingly cooperative on questions like this.

Your next step: create your first Swiss invoice in 2 minutes with Magic Heidi. Free, no credit card, ready to go right away. As you grow, you get the same software we use ourselves as freelancers for our own sole proprietorship.