Multilingual fintech: why English alone is not enough
Fintech is generally perceived as a cross-border industry. Payment platforms, digital banks, lending solutions, investment apps — these products are built to operate across markets, currencies, and regulatory environments. Many fintech companies launch with international ambitions from day one, and for good reason: the opportunity rarely fits within a single country’s borders.
Yet despite this international outlook, one assumption tends to persist well into a company’s growth journey. In my experience working with fintech companies and talking with people across the industry, it comes up regularly: the belief that a multilingual fintech product is unnecessary — that English is sufficient, that users everywhere are comfortable enough to navigate a financial product, complete onboarding, understand compliance notices, and feel confident enough to trust the platform with their money.
In some markets, and for some user segments, this works — partially, and temporarily. But as fintech companies scale into new geographies, the cracks appear. And the cause is rarely the product itself. It’s the language it speaks.
It depends on who you’re selling to — and where
The English-is-enough assumption does not fail equally across all fintech products. It matters a great deal whether you are selling to businesses or to consumers, and in which market you are operating.
In B2B fintech — payment infrastructure, treasury tools, compliance platforms, API-based financial services — the picture is more nuanced. In English-friendly markets, professional-to-professional communication in English is often perfectly workable. Finance and technology professionals in the Nordics or the Netherlands, for instance, are generally comfortable operating in English. But even in B2B, this does not hold universally. In markets like Germany, France, or Italy, business relationships still carry a strong expectation of local-language communication, particularly in contracts, onboarding materials, and support.
In B2C fintech, the dynamic is different altogether. Consumer-facing products — digital wallets, retail investment platforms, neobanks, lending apps — reach a much broader and more varied audience. And here, the demographics argument needs to be examined carefully.
Many fintech teams assume their target users are young, digitally native, and therefore comfortable in English. This is sometimes true at the surface level — younger users may scroll through an interface in English without obvious difficulty. But there is an important distinction between passively navigating an app and actively making financial decisions in a foreign language. Reading a short notification in English is one thing. Carefully reviewing a loan agreement, interpreting the terms of a consent form, or assessing the implications of a compliance disclosure is quite another. The cognitive effort required increases significantly with the complexity of the content, even for users with solid English skills. When the decision also carries financial or legal consequences, that effort translates directly into hesitation — and hesitation, in fintech flows, translates into drop-off.
Beyond complexity, B2C audiences extend well beyond the young urban demographic that fintech products are often designed around. A digital bank or investment app that scales will eventually serve users across age groups, regions, and varying levels of both English proficiency and financial literacy. Assuming that English is adequate for all of them is a growth ceiling, not a neutral default.
Trust is the core currency of any fintech product. And a genuinely multilingual fintech product signals from the start that you are serious about every market you enter.
It’s not just about proficiency — it’s about willingness
When fintech teams discuss language barriers, the conversation usually focuses on English proficiency: how well users can read and understand English. That is a real factor, and it varies enormously across markets. But it is only part of the picture.
The other part is willingness — how comfortable and how motivated users are to engage in English when they have the choice. And here, the picture is even more telling.
Some markets have long maintained a strong cultural preference for their own language in professional and commercial contexts. Germany is a clear example: despite relatively high English proficiency among educated urban demographics, German consumers and businesses have a deeply rooted expectation of being addressed in German. The same applies to France, where the preference for French in business and consumer communication is culturally embedded — and in some sectors, legally reinforced. Italy and Spain follow similar patterns. Offering an English-only product in these markets does not just create friction for those who struggle with English. It also signals to fluent English speakers that the product was not designed with them in mind.
This matters commercially. Users who feel respected by a product — who are addressed in their language, in a tone that fits their cultural context — are more likely to complete onboarding, less likely to churn, and more likely to recommend. Localization, in this sense, is not just about removing barriers. It is about building a relationship with a market.
The practical implication: even where English proficiency is not an obstacle, localizing for the market’s language shows respect for the local audience. In competitive markets, that can be the difference between a product that feels global and one that feels foreign.
Where English-only friction shows up
The effects of skipping localization rarely announce themselves loudly. They accumulate across the user journey in ways that are easy to misattribute:
- Website and acquisition: The user journey begins before anyone opens the app. A localized website — landing pages, product descriptions, pricing, legal notices — is often the first point of contact with a new market. An English-only website in a French or German-speaking market signals from the first click that the product is not fully committed to that audience. It also affects discoverability: search engines rank localized content for local-language queries, so an English-only web presence can significantly limit organic reach in non-English markets.
- Onboarding drop-off: Fintech onboarding is already demanding — identity verification, document uploads, biometric checks, AML/KYC procedures, consent flows, regulatory disclosures. Every unclear instruction is a reason to abandon. When users hesitate because they are unsure what a security prompt means or why specific information is being requested, completion rates suffer. Localized onboarding consistently reduces this friction.
- Transactional communications: A fraud alert, a payment failure notification, or a verification request carries real emotional weight. Receiving it in a foreign language creates distance and uncertainty at precisely the moment when a user needs to feel safe and in control.
- Support volume: When users do not fully understand the product, they contact support. Localized help content — FAQs, knowledge bases, troubleshooting guides — reduces inbound queries and shortens resolution time. It is also one of the highest-leverage localization investments available, serving large user bases without additional headcount.
- Retention and trust: Users who feel a product was genuinely built for their market — consistent, natural-sounding language at every touchpoint — are more likely to stay and to recommend. An interface that reads as translated rather than localized signals a partial commitment to that market, and users notice.
Localization is not translation — and the difference shows
Translation converts words from one language to another. Localization adapts the entire product for a specific market: the language, the terminology, the tone, the formatting conventions, and the cultural expectations users bring to a financial product.
In fintech, the practical differences are visible across every content layer:
- Terminology: “Sort code” is a UK-specific concept. Other markets use IBAN, BIC, routing numbers, or entirely different payment infrastructure terms. Investment products, lending instruments, and account types are described differently across regulatory regimes. Using the wrong term does not just look imprecise — it can confuse users trying to match what they see in the product with something they actually recognise.
- Tone and register: German financial communication typically expects formality and precision. Nordic markets often prefer directness without excessive formality. A direct translation of an English interface tends to carry an English register that can feel awkward or inappropriate in other markets.
- Formatting conventions: Decimal separators, date formats, currency positions, and number groupings differ across markets. These are easy to overlook in development and immediately visible to local users.
Ready to localize — wherever you are in the journey
Whether localization is already part of how your team ships product, or whether you are looking at it now for the first time as you prepare to enter a new market — the starting point is the same: understanding what your specific product needs, which markets you are targeting, and what a well-structured multilingual fintech approach looks like for your situation.
Some fintech companies build localization into their development workflow from early on, so that every release goes out multilingual from day one. Others have a product that is already live and well-established in one market, and are now ready to expand. Both paths are entirely workable. What matters is having the right infrastructure in place — the right tools, the right linguistic expertise, and a workflow that fits how your team actually operates — so that quality and consistency hold across every language and every touchpoint.
If you want to go deeper on the technical side of how fintech localization workflows are structured — file formats, continuous localization pipelines, and where the common risks lie — that is what we covered in our previous article: Fintech localization in practice: content types, file formats, and continuous workflows
Thinking about localization for your fintech product?
At Diskusija, we work with fintech companies at every stage — from those building multilingual products from the ground up to those expanding an existing product into new markets. If you would like to talk through where you are and what the right localization approach looks like for your specific situation, we are happy to have that conversation.