The verdict in three sentences
Multi-currency for an export store costs 5,000 to 18,000 EUR in development, plus 0.5 to 2 % FX fees depending on the PSP. Showing a price in local currency lifts conversion by 10 to 20 % and cuts carts abandoned over a price perceived as foreign. The real lever isn't the visual conversion but local settlement: charging in the customer's currency and via their methods sharply lowers card declines.
The three levels of multi-currency
Many confuse display and settlement. Showing dollars but charging euros fixes neither fees nor declines. Here's what each level covers.
| Level | What it does | Dev (EUR) | Conversion impact |
|---|---|---|---|
| Display only | Converted prices, charged in base currency | 3,000 to 6,000 | +5 to 8 % |
| Multi-currency settlement | Charged in the displayed currency | 8,000 to 12,000 | +10 to 15 % |
| Full localization | Currency + methods + local entity | 12,000 to 18,000 | +15 to 20 % |
| Rounding + psychological prices | Per-country lists (9.90 vs raw conversion) | +2,000 to 4,000 | +2 to 5 % |
The PSP choice then drives your real fees on each international transaction.
| 2026 PSP | Int'l card fee | FX fee | Settlement currencies | Note |
|---|---|---|---|---|
| Stripe | 2.9 % + 0.25 EUR | 1 to 2 % | 135+ | Simple, global |
| Adyen | ~2 % negotiable | 0.5 to 1 % | 100+ | Large volumes |
| Mollie | 1.8 to 2.9 % | ~1.5 % | 25+ | Europe |
| PayPal | 3.4 % + fixed | 2.5 to 4 % | 25+ | Reassuring, pricey |
| Mobile money (Wave/OM) | 1 to 1.5 % | n/a (FCFA) | FCFA | West Africa |
Cutting cross-border card declines
A cross-border payment is declined 2 to 5 times more often than a domestic one. Three levers: settle via a local entity or acquirer (acceptance climbs 5 to 12 points), enable country-appropriate 3-D Secure, and offer local methods (iDEAL in the Netherlands, Bancontact in Belgium, mobile money in West Africa). These settings often matter more than shaving fees.
Mini case study
Sophie runs a natural-cosmetics brand in Lyon exporting to Switzerland, Canada and Ivory Coast. On 100,000 EUR of annual export sales, she loses about 14 % conversion for lack of local display and 3 % of orders to card declines. She invests 11,000 EUR in multi-currency settlement (CHF, CAD) plus Wave/Orange Money for the FCFA zone. Estimated gain: +16 % conversion, i.e. ~16,000 EUR of extra sales in year one, against 11,000 EUR of dev and roughly 1.4 % FX fees. ROI in 8 to 9 months.
FAQ
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Is displaying prices in local currency enough?
No. Display alone brings 5 to 8 % conversion, but as long as the charge is in euros the customer faces surprise bank fees. Settling in their currency delivers the real 10 to 20 % gain.
How much are FX fees?
Count 0.5 to 2 % depending on PSP and volume. Adyen negotiates under 1 % at scale; Stripe sits around 1 to 2 %; PayPal climbs to 2.5-4 %.
Why are my foreign cards declined?
A cross-border payment is declined 2 to 5 times more than a domestic one. A local acquirer and the country's payment methods raise acceptance by 5 to 12 points.
Can I sell in FCFA and euros on the same site?
Yes. We combine a card PSP (Stripe/Adyen) for Europe and the Americas with Wave/Orange Money for the FCFA zone, using per-region price lists.
What total budget should I plan?
Full localization runs 12,000-18,000 EUR of dev, plus recurring per-transaction fees. A 2-3 currency settlement start fits within 8,000-12,000 EUR.
Let's scope your project. Share your target countries, export volume and current PSP: we'll frame the multi-currency strategy and an indicative budget between 5,000 and 18,000 EUR. 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.