The verdict in three sentences
A B2B checkout able to handle multiple currencies and payment methods costs between 12,000 and 35,000 USD in New York in 2026, depending on the number of currencies and tax complexity. The critical cost is not the card but tax handling (US sales tax by state, EU VAT, reverse charge) and net/gross price display by country. Done well, it delivers +20 % international conversion and sharply reduces currency disputes.
Why a B2B checkout costs more than a consumer one
In B2B, a checkout must handle customer accounts, payment terms (net 30/60), quotes converted into orders, tax-ID validation, and above all multi-currency display with a rate locked at order time. These business rules explain the price gap with a standard B2C checkout.
| Scope | 2026 price (USD) | Timeline | Included |
|---|---|---|---|
| Single-currency B2B checkout | 12,000 - 18,000 | 4 weeks | Customer accounts, wire + card |
| Multi-currency (2-3) | 18,000 - 26,000 | 5-6 weeks | EUR/USD/GBP, locked rates |
| Multi-currency + advanced tax | 26,000 - 35,000 | 7-8 weeks | Sales tax by state, reverse charge |
| Net 30/60 deferred payment | + 4,000 - 8,000 | + 2 weeks | Receivables, dunning, credit |
| Annual maintenance | 3,500 - 7,000 / yr | ongoing | FX rates, tax rules |
A payment/e-commerce integrator's day rate in New York sits between 650 and 1,050 USD in 2026. A full multi-currency project runs 25 to 45 person-days depending on tax depth.
Currencies, fees, and conversion
Displaying prices in the customer's currency raises trust and conversion. But each currency adds conversion fees and FX risk to manage.
| Item | USD domestic | EUR (export) | GBP (export) |
|---|---|---|---|
| Card fee | 2.9 % | 2.5 - 2.9 % | 2.3 - 2.7 % |
| Conversion fee | 0 % | 1.0 - 2.0 % | 1.0 - 2.0 % |
| International wire | low | 15 - 40 USD | 15 - 40 USD |
| Expected conversion uplift | baseline | +15 to 25 % | +10 to 20 % |
| Settlement time | T+2 | T+2 to T+4 | T+2 to T+4 |
In continental Europe, an equivalent multi-currency B2B checkout runs 8,000 to 25,000 EUR, with heavy pressure on EU VAT compliance (VIES, reverse charge) rather than US state sales tax.
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Mini case study
Sophie, export director of a components manufacturer in New York, sells in USD, EUR, and GBP but her single-currency checkout caps at 4 % international conversion. She invests 24,000 USD in a multi-currency checkout with automated taxes. Export conversion rises from 4 % to 4.9 % (+22 %) on international traffic worth 90,000 USD/month in potential orders: about 19,800 USD/month of extra captured orders. Currency disputes, which cost ~1,200 USD/month in credits, drop to 400 USD. Payback in about one month.
FAQ
Should the FX rate be locked at order time? Yes. Locking the rate at confirmation avoids gaps between order and invoice, the main source of disputes in international B2B.
Can tax-ID validation be automated? Yes, via the EU VIES service for EU sales and state registration checks for US sales tax. It governs reverse charge and avoids assessments.
How many currencies should I display? Two to three cover most needs (USD, EUR, GBP). Adding another currency costs mainly in tax testing, not raw development.
What is a realistic timeline? From 4 weeks for a single-currency base to 8 weeks for a multi-currency checkout with advanced tax and deferred payment.
Can I offer net 30/60 payment? Yes, via a receivables and dunning module, often paired with trade-credit insurance. Budget 4,000 to 8,000 USD extra.
Let's scope your project. Tell us your target currencies, selling countries, and tax rules, and we'll price a B2B checkout tailored to your export. 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.
