How Fintechs Actually Make Money on International Transfers

When you fund a transfer via ACH and the funds take 1-3 days to clear, the provider earns interest on those funds during that period. Same when funds sit in a recipient's wallet before being withdrawn or spent.

Pre-2022 (when interest rates were near zero) this was negligible. Post-2022 with US rates at 4-5%, float is meaningfully accretive. Wise reported $245M in interest income in FY24, ~25% of total revenue. Revolut similarly benefits.

• Revolut Premium ($10/mo) and Metal ($17/mo): Unlock higher free FX limits, travel insurance, premium card.
• N26 You / Metal (€10-17/mo): Similar travel-focused premium tiers.
• Monzo Premium / Plus (£5-15/mo): Better card, travel insurance.
• Wise: Doesn't have a premium consumer tier; instead monetises Wise Account holders via interest on balances and small per-transaction fees.

Subscription revenue is high-margin and predictable. Revolut publicly attributes ~30-40% of revenue to premium and Metal tiers (combined with interchange — see below).

Every time you tap your Revolut, Wise or Monzo card, the merchant's bank pays interchange (typically 0.2-2% of the transaction). The card issuer gets most of this — meaning the fintech.

Interchange revenue scales with how often you use the card. For Revolut and Monzo, where the card is used heavily for daily spending, interchange is a major revenue stream — possibly the largest after subscriptions.

• Wise Business: Multi-currency accounts, payroll, invoicing for SMEs. Higher take rate (~0.7%) than consumer.
• Wise Platform: White-label international payments for banks (Standard Chartered, Monzo, N26 use Wise infrastructure).
• Revolut Business: Comparable to Wise Business; competitive in Europe.
• Remitly Business / Tap Tap Send Business: Smaller but growing.

B2B is generally higher-margin than consumer because business customers have larger transaction sizes and lower price-sensitivity. Wise Business is reportedly Wise's fastest-growing segment.

• Revolut: Stock trading, crypto trading, savings accounts. Significant interchange-like fees + spread.
• Wise: Recently launched 'Assets' for holding stocks and ETFs in your Wise account.
• Monzo: Mortgage referrals, investing via partners.
• N26: Investment products via partners.

These adjacencies have lower take rates than transfers (often 0.1-0.3%) but extremely high frequency. Revolut's crypto book alone reportedly generated >$300M in revenue at peak.

All major fintechs are moving toward lending: personal loans, working capital for businesses, BNPL. Lending has the highest unit economics of any consumer financial product. Revolut, Monzo and N26 are all pushing here; Wise has historically resisted but is exploring.

Implication: 'free' transfers are a customer-acquisition tool. Once you trust a fintech with daily banking, they can sell you premium subscriptions, interchange-heavy spending, and eventually high-margin loans. The economics are similar to a traditional bank, but with lower customer acquisition cost.

• Free transfers really are free for the provider's marginal cost. They make money elsewhere.
• Holding balances has a cost (to you) — providers earn float on idle funds. Move money out promptly if you don't need it sitting there.
• Premium subscriptions are sometimes worth it for travel-heavy users; usually not for occasional users.
• Card spending gives the provider revenue — if you prefer that, fine. If you prefer to vote with your wallet, withdraw cash.
• Don't worry about the business model — these companies are well-capitalised, regulated, and the AML/KYC framework protects user funds.

Understanding provider business models helps you predict where they'll be competitive and where they'll trim margins. Here's how the major players monetise transfers:

• Wise's model: Transparent percentage fee (0.4-0.7%) + small fixed fee. No hidden rate margin. They make money on volume, not on opacity. Wise also earns significant interest income — customer balances held in Wise accounts are invested in money market funds, generating $200M+ in annual interest income at current rates.
• Remitly's model: Rate margin (invisible) + sometimes a transfer fee. Their promo rates are loss leaders to acquire customers — they model the lifetime value of a recurring remittance customer (typically $40-60/year over 5+ years) against promo acquisition cost.
• Western Union's model: Layered fees — visible upfront fee + rate margin. The rate margin is their primary profit driver on digital transfers. Physical agent network generates agent commission income.
• Xoom's model: Rate margin (their primary revenue) + transfer fee. As a PayPal subsidiary, they benefit from payment infrastructure at near-zero marginal cost.
• Revolut's model: Subscription tiers (Standard free, Premium £7/month, Metal £13/month). FX revenue on weekend conversions (1% markup) and conversions above monthly limits. Card interchange fees.
• OFX's model: Rate margin that compresses as transfer size grows. Large-transfer business clients (property buyers, importers) pay a wider margin than they imagine, but it's competitive vs banks.

Understanding business models lets you predict provider behaviour:

• Promo rates are real but temporary: Remitly's promo rate is a real saving. The rate after 6 months of sending is lower. Use promos, but re-evaluate your provider periodically.
• Transparent = cheaper at scale: Wise's transparent percentage fee means the cost is predictable. On a $10,000 transfer, Wise's 0.55% is $55 — clearly stated. A rate-margin provider on the same transfer might cost $150 invisibly.
• Subscription models work for high-volume users: If you send $2,000+/month via Revolut Metal at £13/month, you're paying less than 1% total cost for unlimited conversions. If you send $200/month, the subscription math doesn't work.
• Interest income alignment: Providers like Wise that earn interest on customer balances are incentivised to maintain competitive transfer rates (to attract balance holders) rather than maximising per-transfer FX margins.