In 2026, creating a high-performance e-commerce site in Belgium will costbetween €5,000 and €60,000according to : volume produced (catalog), functionalities (payment, logistics, ERP, promotions), design level, the technology used, and above all the service provider (freelance, agency, SaaS solution). E-commerce is more than just an online store: it's a way of doing business commercial machine which must generate a clear ROI. A successful e-commerce site in 2026 must be :
- rapidly (Core Web Vitals 90+),
- conversion-optimized,
- thought SEO,
- stable,
- extensible,
- interconnected with your logistics & back-office.
Here's the reference guide to defining your budget.
Quick price: How much will it cost to run an e-commerce business in Belgium in 2026?
| Type of e-commerce | Min. price | Max. price | Deadlines |
|---|---|---|---|
| Basic e-commerce (≤100 products) | 5 000€ | 30 000€ | 8–12 weeks |
| Advanced e-commerce (100-1,000 products) | 12 000€ | 45 000€ | 12-20 weeks |
| Complete e-commerce / ERP-connected | 20 000€ | 60 000€+ | 16-28 weeks |
| Marketplace, multi-store, multi-country | 40 000€ | 150 000€+ | 20-32 weeks |
Most common fork in Belgium (SME) : €8,000 to €25,000
1. Basic e-commerce (up to 100 products) - €5,000 to €30,000
Suitable for local shops, restaurateurs, novice retailers or companies testing online sales.
What's included :
- Catalog of up to 100 products
- Simple variations (size, color)
- Paiements (Bancontact, Stripe, PayPal)
- Basic order management
- Standardized product pages
- Essential integrations (GA4, Pixel Meta)
What makes the price different:
- Whether you need professional photos or not
- Number of product page templates
- Intra-Community VAT management
- Local vs. national delivery
- Custom design vs. theme
Recommended technologies :
- Shopify for speed
- WooCommerce on a tight budget
- Astro + headless API for maximum performance
→ See also:Shopify / WooCommerce / Astro comparison (/shopify-woocommerce-astro-comparison)
2. Advanced e-commerce (100 to 1,000 products) - €12,000 to €45,000
For companies looking to set up an e-commerce site reliable, fast, optimized conversionwith automation.
What's included :
- Extensive catalog
- Advanced filters & internal search engine
- Complex promotions & discounts
- Automated basket abandonment
- Coupon system
- Automated emailing
- CRM connection
Ideal for :
- Retailers with several ranges
- D2C Brands
- High-growth e-commerce SMEs
- Boutiques with serious acquisition campaigns
Why the budget is rising:
- Core Web Vitals optimization (critical in 2026)
- Multi-category SEO architecture
- Mass integration of product sheets
- Automations marketing
- Customized back office
3. Complete e-commerce (ERP, logistics, multi-boutiques) - €20,000 to €60,000+
For companies that structure their e-commerce as a "one-stop shop a true strategic sales channel.
What's included :
- ERP connection (Odoo, SAP, Zoho...)
- Real-time stock synchronization
- Order + invoice synchronization
- Multi-language / multi-country
- Multi-store / multi-brand
- Pricing dynamique
- Complex logistics rules
- Accounting integration
Why these projects cost more:
- Many APIs
- More extensive testing + recipes
- Heavy architecture (scalability)
- Imperative performance (SEO + ROAS + CX)
4. Marketplace or multi-vendor platform - €40,000 to €150,000+
It's a software project, not just an e-commerce one.
What's included :
- Vendor management
- Commission management
- Split payments (Stripe Connect)
- KYC & compliance
- Seller dashboard
- Moderation & automation
- Advanced search & matching
Service providers :
- Requires an expert e-commerce & platforms agency.
- Numinam can frame & realize this type of project (by quotation only).
5. What will affect the price of an e-commerce site in 2026?
Product volume & variations
The more products, categories, filters → the more complex the SEO and UX structure.
Selected technology
| Tech | Cost | Notes |
|---|---|---|
| Shopify | €€ | simple, fast, flexible |
| WooCommerce | € | economical but high maintenance |
| Webflow e-commerce | €€€€€ | very design, limited for large catalog |
| Astro + backend headless | €€€€ | plus performant, scalable, SEO optimal |
Numinam prefers Astro for speed and SEO, coupled with Shopify or a headless backend.
Integrations: ERP, CRM, accounting
Each API = €1,000 to €4,000
Logistics & European VAT
Shipping rules and intracom VAT make the project extremely complex.
Automations marketing
- basket abandonment,
- upsell / cross-sell,
- segmentation,
- automated emails.
Performance & SEO
For e-commerce, performance = conversion. But getting a site 90+ Core Web Vitals requires +20 to +40% effort.
6. Recurring e-commerce costs (to be expected in 2026)
Realistic annual budget :1,200€ to 12,000€ / yearaccording to the ambition.
Hosting
- WooCommerce: €200 - €600/year
- Astro: €50 - €200/year
- Shopify: €29 - €399/month
Maintenance
- WooCommerce: €100 - €500/month
- Astro: €50 - €200/month
- Shopify: almost zero
SEO ongoing
€1,000 - €5,000/month
Automations / emails
€100 - €500/month
Paid acquisitions (Ads)
variable - butessential for scaling.
→ See also:Recurring website costs in Belgium (/cout-maintenance-site-web)
7. Examples of e-commerce budgets for a Belgian SME
Case 1 - Local store (≤50 products)
- Budget: 5 000€ - 12 000€
- Tech tip: Shopify
- Objective: get off to a good start
Case 2 - SME retail (100-600 products)
- Budget : €12 000 - €30 000
- Recommended tech: Astro + Shopify
- Objective: SEO + performance + automation
Case 3 - Advanced e-commerce connected to ERP
- Budget : 25 000€ - 60 000€
- Recommended tech: Astro + headless backend
- Objective: scalability & long-term stability
Case 4: Marketplace
- Budget: 40 000€ - 150 000€+
- Tech: made-to-measure
- Objective: platform model (Vinted / Airbnb type)
8. E-commerce mistakes to avoid
Choose the least expensive technology
Shopify cheap = no automations → weak sales tunnel. WooCommerce cheap = catastrophe performance & security.
Neglecting performance
1 second loading time = +15% conversions. Slow e-tailers lose out 30 to 60% of their sales.
Copy competitors' prices
Your structure is not theirs. They can have an ERP, automations, hidden processes.
Underestimating recurring costs
The real cost of e-commerce isannualnot just initial.
9. How much to invest in profitable e-commerce in 2026?
Here are Numinam's recommended budgets:
| Level | Recommended budget |
|---|---|
| Market test | 5 000€ - 10 000€ |
| Ambitious SME | 12 000€ - 30 000€ |
| Established SME with ERP | 25 000€ - 60 000€ |
| Marketplace | 40 000€ - 150 000€+ |
10. Create your e-commerce with Numinam (2026)
Numinam develops e-commerce sites:
- ultra-fast (Astro + headless),
- scalable,
- SEO optimized,
- conversion-oriented,
- connected to your tools (ERP, CRM, accounting),
- with integrated AI when it brings a commercial advantage.
Average Numinam price: €8,000 to €30,000 for SMEs
→ Request your quote. I'll get back to you within 24 hours.
