How Much Does a B2B Portal Cost? Real Prices in 2026

The Pricing Problem in B2B Portals

If you have tried to get a straight answer on how much a B2B ordering portal costs, you have probably run into the same wall: "Contact us for a quote." Every vendor wants to qualify you before showing a number. That makes sense for them, but it wastes your time.

I build B2B wholesale portals for distributors and wholesalers. I am going to share exact numbers — what things actually cost in 2026, where the hidden fees live, and how different options compare over one, two, and three years.

There are three realistic paths to getting a B2B portal: a SaaS platform, a custom build by a development agency, or a custom portal built by a specialist. Each has a different cost structure and a different set of trade-offs.

Option 1: SaaS B2B Platforms

SaaS platforms charge monthly subscriptions plus variable fees. Common pricing in the Polish market:

• Monthly fee: 200–800 PLN depending on features and user count
• Per-order fee: 0.50–2.00 PLN per transaction (some platforms charge this)
• Setup fee: 500–3,000 PLN one-time
• Integration fee: 2,000–8,000 PLN for ERP/accounting system connection

Pros: Fast to start, no upfront development cost, vendor handles hosting and updates.

Cons: Limited customization, you are locked into the vendor's feature roadmap, per-order fees compound quickly at high volumes, your data lives on someone else's infrastructure.

For a wholesaler processing 500 orders per month with a mid-tier plan at 500 PLN/month and a 1 PLN per-order fee, the monthly cost is 1,000 PLN before integration fees.

Option 2: Agency-Built Custom Portal

Development agencies in Poland quote B2B portals in the range of 50,000–200,000 PLN depending on scope. A typical project:

• Development: 50,000–200,000 PLN (3–9 months)
• Monthly hosting/maintenance: 1,000–3,000 PLN
• Change requests: 200–400 PLN per developer-hour

Pros: Fully custom, built to your specifications, you own the code.

Cons: Long development timeline (often 6–12 months from contract to launch), high upfront investment, ongoing maintenance costs, you need to manage the agency relationship and provide detailed requirements.

The biggest risk with agencies is scope creep. A project quoted at 80,000 PLN can easily reach 130,000 PLN if requirements change during development — and they always change.

Option 3: Specialist-Built Custom Portal

This is what I do at ignashev.ai. A pre-architected B2B portal customized to your wholesale operation:

• Development: €3,500–€5,990 one-time (depending on integrations)
• Monthly hosting and support: €60/month
• AI ordering assistant (optional): €149/month
• No per-order fees. No per-user fees.

Pros: Custom to your business, fixed and predictable pricing, fast delivery (4–6 weeks), includes hosting and maintenance, no variable costs as you grow.

Cons: Opinionated architecture (you get a portal built on proven patterns, not a blank canvas), single specialist rather than a team of 10.

3-Year Total Cost Comparison

Here is what each option actually costs over time. Assumptions: 500 orders/month, growing 10% annually. SaaS plan at 500 PLN/month + 1 PLN/order. Agency build at 100,000 PLN + 2,000 PLN/month maintenance. Specialist build at €5,500 (mid-range) + €60/month. All amounts converted to PLN at 4.30 PLN/EUR for comparison.

Cost component	SaaS platform	Agency build	Specialist (ignashev.ai)
Year 1 upfront	3,000 PLN (setup + integration)	100,000 PLN	23,650 PLN (€5,500)
Year 1 monthly	12,000 PLN (1,000/mo)	24,000 PLN	3,096 PLN (€720)
Year 1 total	15,000 PLN	124,000 PLN	26,746 PLN
Year 2 monthly	13,200 PLN (+10% orders)	24,000 PLN	3,096 PLN
2-year total	28,200 PLN	148,000 PLN	29,842 PLN
Year 3 monthly	14,520 PLN (+10% orders)	24,000 PLN + ~15,000 PLN changes	3,096 PLN
3-year total	42,720 PLN	187,000 PLN	32,938 PLN

Notice what happens with SaaS: the per-order fees mean your costs grow with your business. By year three, you are paying more per month than the specialist option costs for the entire year.

The agency option looks worst on paper, but you get full ownership and can customize everything. The question is whether you need that level of customization for a B2B ordering portal.

Hidden Costs Most Vendors Do Not Mention

Three cost categories that regularly surprise buyers:

1. ERP integration. Almost every B2B portal needs to talk to your accounting or warehouse system. SaaS platforms charge separately for this. Agencies include it in the quote but it is usually the part that goes over budget. Budget 5,000–15,000 PLN for a standard Subiekt GT or Comarch Optima integration regardless of which path you choose. If you run enova365, the integration side is significantly lighter — see how the Soneta WebAPI integration works and why it takes 3–5 days.

2. Data migration. Getting your product catalog, client list, and pricing into the new system takes time. If you have 5,000+ SKUs with complex pricing rules, expect 1–2 weeks of data preparation.

3. Training and onboarding. Someone needs to teach your team and your clients how to use the portal. This is rarely included in quotes and costs 2,000–5,000 PLN if you hire someone to do it.

When Each Option Makes Sense

Choose SaaS if: You process fewer than 200 orders per month, need basic functionality, want zero upfront cost, and are okay with limited customization.

Choose an agency if: You have very specific requirements that no existing system can handle, your budget is above 100,000 PLN, and you have someone in-house who can manage the development project.

Choose a specialist build if: You want a custom portal without the agency price tag, need it operational in weeks rather than months, and want predictable monthly costs that do not scale with your order volume.

For most Polish wholesalers doing 300–2,000 orders per month, the specialist option offers the best balance of cost, customization, and speed. Compare all options side by side on the B2B platform comparison page.

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