An online side hustle is a flexible way to generate extra income alongside your regular job or studies via the internet. Whether you're looking for a creative outlet, want to build financial freedom, or simply want to supplement your monthly budget - an online side hustle gives you the opportunity to work at your own pace and from home. In this article, you'll discover the best online side hustle ideas for 2026, complete with revenue models, startup times, and a concrete step-by-step plan.
Why Start an Online Side Hustle?
The number of people in the Netherlands with a side hustle is growing exponentially. According to the CBS, in 2024, more than 1.2 million people in the Netherlands had a side job or secondary activity in addition to their main income. The benefits of an online variant are clear:
- Low startup costs - many online side hustles require minimal investment
- Location-independent - work from home, a café, or on the go
- Flexible hours - you decide when you work
- Scalability - you can start small and grow gradually
- Diversification - having multiple sources of income reduces financial risk
Moreover, the threshold to get started is lower than ever. With platforms like bol.com, Etsy, Fiverr, and various marketplaces, you can quickly earn your first euro without setting up a full-fledged business.
Overview: The Best Online Side Hustle Ideas
Below, you'll find a comparison table of the most popular online side hustle opportunities. We've evaluated them based on startup costs, difficulty level, earning potential, and time to first income.
| Side Hustle | Startup Costs | Difficulty | Earning Potential/month | Time to First Income |
|---|---|---|---|---|
| Selling on bol.com | €50–€500 | Average | €500–€5,000+ | 2–4 weeks |
| Dropshipping | €100–€300 | Average | €200–€3,000 | 4–8 weeks |
| Freelance writing | €0 | Low | €300–€2,500 | 1–3 weeks |
| Virtual assistant | €0 | Low | €400–€2,000 | 1–2 weeks |
| Affiliate marketing | €0–€100 | Average | €100–€3,000 | 2–6 months |
| Creating online courses | €50–€200 | High | €500–€5,000+ | 2–4 months |
| Social media management | €0 | Average | €500–€3,000 | 2–4 weeks |
| Print on demand | €0–€50 | Low | €100–€1,500 | 4–8 weeks |
| Freelance graphic design | €0–€100 | High | €500–€4,000 | 2–4 weeks |
| YouTube channel | €0–€500 | High | €0–€5,000+ | 3–12 months |
| Blogging | €50–€150 | Average | €100–€3,000 | 3–9 months |
| Online coaching/consultancy | €0–€100 | High | €500–€5,000+ | 1–3 months |
| Stock photography | €200–€1,000 | Average | €50–€1,000 | 1–3 months |
| Selling digital products | €0–€100 | Average | €200–€3,000 | 2–6 weeks |
| SEO consultancy | €0 | High | €500–€4,000 | 2–4 weeks |
E-commerce as an Online Side Hustle
E-commerce is one of the most lucrative forms of an online side hustle. By selling products through established platforms, you can reach a large audience without having your own webshop.
Selling on bol.com
With over 13 million active customers, bol.com is the largest online sales platform in the Benelux. As a side hustle, you can sell products through the partner platform. You benefit from the trust that consumers already have in bol.com, while you decide which products to offer.
The key to success on bol.com is good product research. With tools like the Product Tracker and Product Database from Boloo, you can make data-driven decisions about which products to sell. The Keyword Verkenner then helps you optimize your listings for maximum visibility.
Dropshipping
With dropshipping, you sell products that you don't keep in stock yourself. A supplier ships the product directly to your customer. This significantly reduces your startup costs and risk, but the margins are generally lower. Platforms like bol.com and Shopify make it relatively easy to get started with dropshipping.
Print on Demand
With print on demand, you design products (t-shirts, mugs, posters) that are only produced after an order is placed. Services like Printful and Gelato handle production and shipping. This is ideal as a creative side hustle with minimal financial risk.
Digital Products
E-books, templates, planners, Canva designs, and digital downloads are perfect side hustle products. You create them once and sell them unlimitedly. The margins are high because there are no production costs per unit.
Freelancing as an Online Side Hustle
Freelancing is an excellent online side hustle for anyone with a specific skill. You sell your time and expertise, which means you can start earning right away.
Freelance Writing
Content is king - companies continuously need blog articles, website texts, product descriptions, and social media content. Platforms like Upwork, Fiverr, and Textbroker provide a starting point, but you can earn the best rates through direct client relationships. Start by building a portfolio of 3-5 sample articles.
Virtual Assistant
As a virtual assistant, you support entrepreneurs and businesses with tasks such as email management, calendar planning, customer service, and data entry. The demand for virtual assistants has grown strongly in recent years as more and more companies adopt remote work.
Social Media Management
Many small entrepreneurs don't have the time to keep up with their social media. As a social media manager, you create content, plan posts, and analyze results. Knowledge of Instagram, TikTok, LinkedIn, and Facebook is essential. A good social media manager can charge €500–€1,500 per client per month.
Graphic Design
Using tools like Canva Pro, Adobe Illustrator, and Figma, you can design logos, social media graphics, presentations, and brand kits for clients. Graphic design is a side hustle with high earning potential once you've built a portfolio and have repeat clients.
Passive Income as an Online Side Hustle
The holy grail of online side hustles is passive income: earning while you sleep. Although setting it up requires initial work, these models generate income with minimal ongoing effort in the long run.
Affiliate Marketing
With affiliate marketing, you promote other people's products or services and earn a commission per sale. You can use a blog, YouTube channel, or social media to share affiliate links. Programs like the bol.com partner program, Amazon Associates, and Awin offer thousands of products to promote.
Creating online courses
If you have expertise in a particular field, you can create an online course. Platforms like Udemy, Teachable, and Skillshare make it technically easy. A well-positioned course can generate hundreds to thousands of euros per month. Also, consider creating courses on e-commerce if you have experience with it.
Blogging and SEO
A blog can generate income through ads (Google AdSense), affiliate links, and sponsored content. It takes time - expect 6 to 12 months for significant traffic - but the income is largely passive once articles rank well in Google.
YouTube and podcasting
Video and audio content offer multiple revenue models: ad revenue, sponsor deals, merchandise, and a community of your own. Building an audience takes time, but the potential reward is significant. Dutch YouTubers with 10,000+ subscribers earn an average of €500–€2,000 per month.
How to choose the right online side hustle?
With so many options, choosing can be overwhelming. Use these criteria to find the right side hustle for you:
| Criteria | Ask yourself | Example |
|---|---|---|
| Skills | What are you already good at? | Good at writing → freelance content |
| Available time | How many hours per week do you have? | 5 hours/week → virtual assistant |
| Start-up capital | How much can you invest? | €0 → freelancing; €500 → e-commerce |
| Income timeline | When do you want to earn money? | Immediately → services; later → passive income |
| Scalability | Do you want to grow to full-time? | Yes → e-commerce or SaaS |
| Passion | What do you enjoy doing in your free time? | Photography → stock photos or product photography |
The best side hustle is one that fits your current situation and future plans. If you're interested in e-commerce, selling on bol.com is an excellent choice due to its large reach and available analytics tools that help you grow data-driven.
Step-by-step: starting your online side hustle
Follow this step-by-step plan to get from idea to your first euro:
Step 1: Choose your niche and revenue model
Determine what you're going to do and how you'll earn money. Be specific: not 'I'm going to sell something online', but 'I'm going to sell kitchen products on bol.com through wholesale purchase'.
Step 2: Conduct market research
Research whether there's demand for your product or service. For e-commerce, you can use tools to analyze which products sell well. For services, check platforms like Upwork and Fiverr to see what the competition offers and what clients are willing to pay.
Step 3: Take care of administration
In the Netherlands, you need a KvK registration for most side hustles as soon as you generate income regularly. This costs a one-time €75. Don't forget the VAT exemption (small business scheme) if you have an annual turnover of less than €20,000.
Step 4: Start small and validate
Start with a minimal offer. Sell your first five products, write your first three articles, or take on your first two clients. The goal is to get feedback quickly and learn, not to strive for perfection right away.
Step 5: Optimize and Scale
Analyze what works and invest more in it. For bol.com sellers, tools like the Listing Generator AI and Winstcalculator provide concrete insights to improve your listings and optimize your margins.
Common Mistakes in an Online Side Hustle
Avoid these pitfalls that many starters encounter:
- Starting too broad - focus on one product or service instead of five at once
- Not keeping administration - keep track of your income and expenses from day one. With automated invoicing, you'll save a lot of time
- Impatience - most side hustles need 2-3 months to really get going
- Wanting to do everything yourself - automate where possible and outsource tasks that aren't your core activity
- Not using data - make decisions based on numbers, not feelings. A sales dashboard gives you direct insight into your performance
- Ignoring the fiscal side - ensure your KvK registration, VAT return, and income tax are in order
- Not keeping a buffer - never invest money you can't afford to lose in your side hustle
Online Side Hustle and Taxes in the Netherlands
Many starters forget the fiscal aspect of their side hustle. In the Netherlands, the following rules apply:
- With structural income, you must register with the KvK (€75 one-time)
- Income from your side hustle is taxed as business profit or result from other activities
- With a turnover below €20,000 per year, you can apply the small business scheme (KOR) - then you don't have to charge VAT
- If you meet the hourly criterion (1,225 hours per year), you may be eligible for the self-employed person's deduction
- Keep a separate bank account for overview - this makes your bookkeeping easier
Frequently Asked Questions about an Online Side Hustle
Do I need a KvK registration for an online side hustle?
Yes, in most cases. As soon as you generate structural income with your online activities, you are required to register with the Chamber of Commerce. This also applies if you do it alongside a job.
How much can I earn with an online side hustle?
This varies greatly per type and effort. Freelancers earn an average of €300–€2,500 per month, while successful e-commerce side hustles on bol.com can generate €1,000–€5,000+ per month. The key is consistency and smart use of tools to increase your efficiency.
What is the best online side hustle for beginners?
Selling on bol.com, virtual assistance, and freelance writing are ideal for beginners due to low startup costs and relatively quick first income. For bol.com sales, you can use tools like Boloo to quickly find the right products and optimize your listings.
Can I combine an online side hustle with a full-time job?
Absolutely. Most side hustles are designed to work flexibly alongside a regular job. Plan 5-10 hours per week, work in the evenings or on weekends, and grow at your own pace. Check your employment contract for any non-competition clauses.
What is the difference between a side hustle and a part-time job?
A side job is usually a paid job with an employer, with fixed hours and a fixed hourly wage. A side hustle is your own business that you run alongside your main income. The advantage of a side hustle is that you can grow unlimited and determine your own income.
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