The verdict in three sentences
A custom B2B e-commerce platform in Toronto in 2026 costs 90,000 to 240,000 CAD depending on pricing complexity and ERP integration, over a 5 to 9 month timeline. The price isn't driven by the catalogue but by the business rules: per-customer pricing, multi-user accounts, credit limits and payment terms. Below roughly 700,000 CAD of digitizable revenue a B2B SaaS often suffices; above that, custom pays back in 18 to 30 months.
What sets B2B apart from B2C e-commerce
A B2C site sells a product at a listed price. A B2B portal manages commercial relationships: every business customer sees their own price, payment terms and order history. These business rules make up 40 to 60 % of the development budget, well ahead of design.
| B2B-specific feature | Complexity | 2026 range (CAD) |
|---|---|---|
| Negotiated pricing per customer / group | High | 11,000 - 30,000 |
| Multi-user accounts & roles | Medium | 7,000 - 19,000 |
| Online quotes + approval workflow | High | 10,000 - 24,000 |
| Payment terms (credit, due dates) | High | 8,000 - 22,000 |
| Quick order / reorder by SKU | Medium | 5,000 - 14,000 |
| Real-time ERP integration (stock, price) | Very high | 16,000 - 54,000 |
| Catalogue & advanced search | Medium | 8,000 - 20,000 |
Budget by tier
The tier depends on the number of SKUs, accounts and depth of integration with your systems.
| Tier | Typical scope | 2026 cost (CAD) | Timeline |
|---|---|---|---|
| Essential | Catalogue, accounts, simple pricing, card payment | 90,000 - 120,000 | 5-6 months |
| Standard | + quotes, negotiated pricing, ERP connector | 125,000 - 175,000 | 6-8 months |
| Advanced | + payment terms, multi-entity, PWA, support portal | 180,000 - 240,000 | 8-9 months |
| Annual maintenance | Fixes, enhancements, managed hosting | 16,000 - 40,000 /yr | recurring |
Budget 15 to 20 % of the initial spend per year for maintenance and enhancements: it's the line decision makers most often forget in their business plan.
Mini case study
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Claire is sales director at an industrial-supplies distributor in Toronto, 240 business customers, 6 reps. Her reps spend on average 1.5 hours a day keying in orders received by email or phone. The goal: a B2B portal where customers order on their own using their negotiated prices.
Chosen investment: 155,000 CAD (Standard tier, ERP connector included). Target: 40 % of orders shifted to self-service in year one. Math: 6 reps × 1.5 h × 40 % = 3.6 h/day freed, roughly 792 h/year redirected to prospecting. Valued at 45 CAD/h loaded, that's 35,640 CAD/year, plus an 8 % higher average basket observed on online orders. Estimated payback around 28 months, excluding the sales upside — a realistic 2026 order of magnitude for this profile.
FAQ
Won't a Magento or B2B template do the job? For a simple catalogue, yes, from about 35,000 CAD. As soon as per-customer pricing, credit limits and ERP integration come in, the cost of customizing a template approaches custom, with more technical debt.
What does ERP integration really cost? Between 16,000 and 54,000 CAD depending on the ERP (SAP, NetSuite, Sage) and sync mode. Real-time (stock, price) costs more than a nightly import but prevents stockouts and billing disputes.
How long before go-live? From 5 to 9 months. An MVP with catalogue, accounts and pricing can ship in 4 months, then quotes and payment-terms modules are added in batches to deliver value faster.
Can we start small and grow? Yes, and it's recommended: ship the core (catalogue + accounts + ordering) first, then the complex bricks. Clean architecture avoids rewriting everything at each step.
What maintenance budget should I plan? From 16,000 to 40,000 CAD/year, or 15 to 20 % of the initial build, covering fixes, security updates, managed hosting and small enhancements.
Let's scope your project. Tell us about your catalogue, your ERP and the number of customer accounts: we'll frame the scope, tier and an indicative budget between 90,000 and 240,000 CAD. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.