Bilingual or one language: choose based on real readers
Deciding to be bilingual is not just for sophistication, but because there are people who need to read in that language.
Create bilingual documents in Vietnamese and English when there are actual readers who do not use Vietnamese, such as foreign investors, international partners, or export customers. If the readers are all domestic, a single language version is more concise, cheaper, and easier to update. Bilingual versions add costs and maintenance efforts, so they should only be done when specific readers are identified.
- fundraising from foreign funds or international partners
- readers from the domestic market maintain a single language
- financial figures must meet the target market standards
- bilingual by habit without an English reader
- mechanical translation that forgets to adjust number formatting
This is a question that Sinh Vũ encounters frequently, and the short answer is: use bilingual content only when there are readers who genuinely cannot read Vietnamese. Without those readers, a single language version is more concise, less costly, and easier to keep updated. It sounds simple, but many businesses still create bilingual content out of habit, thinking it looks more sophisticated, which is why Sinh Vũ wrote this page.
Ask one question before deciding: who will read this document?
This is the only question that needs to be answered before deciding on the number of languages. It is not about whether your business has international collaborations, but rather: who will be reading this document, and in which language do they read?
If you are seeking funding from a foreign fund, the reader is a foreign fund manager. If you are submitting a bid to a Vietnamese government agency, the reader is entirely domestic. These two cases will lead to completely different decisions.
Cases that should be bilingual.
- The pitch deck is sent to foreign investment funds or international angel investors.
- Joint venture documents or contracts with foreign partners need to be read and signed.
- Capability deck or export catalog sent to customers in foreign markets.
- Internal documents of the company involve international personnel working with the Vietnamese team.
For large exports or multinational markets, sometimes three languages are needed. Sinh Vũ has created such document sets, but each additional language must correspond to a specific reader group, not just for the sake of it.
Cases not needing bilingual text.
- Sales and customer consultation documents are all domestic.
- Bidding statements and contracts with Vietnamese government agencies.
- Social media or website content aimed at domestic consumers.
- Internal operational documents of the Vietnamese team.
Translation versus localization: distinguish to avoid mistakes
This is a point that many people overlook. Translation is about converting words while retaining meaning. Localization involves adjusting context, number formats, measurement units, presentation standards, and nuances to suit the local reader.
Localization: beyond translating text, also adjust number formats to the target market standard, change units if necessary, modify the tone to suit the audience (institutional investors read differently than individual investors), and ensure layout does not break when integrating the English version.
Funding documents sent to foreign funds often need localization, not just translation. Export product introduction documents are the same. If you only use machine translation and make minor adjustments, foreign readers will immediately sense the discrepancy, even if they don't express it.
Identify the actual reader before writing. Whether there are foreign readers is the basis for deciding if bilingual content is necessary.
Plainlanguage.gov, Federal Plain Language Guidelines
Costs and maintenance expenses later on.
Bilingual content not only incurs initial costs. Each time the content changes, both versions must be updated. If the internal team lacks English proficiency to make adjustments, outsourcing or returning to the studio is necessary for each update. This doubles maintenance costs compared to a single language version.
Sinh Vũ typically handles this: if you have decided to go bilingual, the original template will be created so that the internal team can update both languages later while maintaining brand standards. The goal is to make you proactive, not dependent on the studio each time a number or sentence needs to be changed.
Common errors when deciding to go bilingual
- Being bilingual because it seems more professional, while there are no actual English readers.
- Is machine translation followed by immediate posting without adjusting number formats, units, and financial standards for the target market?
- Do not leave space in the layout for differences in text length between Vietnamese and English. English is often 20 to 30 percent longer than the Vietnamese version with the same content, disrupting the layout when combined.
- Not updating both versions simultaneously, resulting in two languages conveying different messages after several edits.
Decision checklist
Topic: When you need a bilingual version in Vietnamese and English. Sinh Vũ guide, sinhvu.com
Select each item you find appropriate, then print or save as PDF to take with you.
If you have marked most of the signs above, this is the time to discuss in more detail. Sinh Vũ can help you review and propose a direction.
References
RWS, Localization vs Translation (localization industry). Plainlanguage.gov, Federal Plain Language Guidelines. Sinh Vũ, service document P4 (bilingual and multilingual version).
Frequently asked questions
Does being bilingual help the brand look more professional?
Looking professional depends on the quality of content and layout, not the quantity of language. A poorly translated bilingual document or one that does not format numbers correctly for the market can be counterproductive. Only create bilingual documents when there is a specific reader, and it is better to do it right than to do it just to have it.
Is machine translation followed by light editing sufficient?
For brand documents or fundraising materials, they are often insufficient. Machine translation can convey words but often misses numerical formats, units of measure, financial standards, and nuances suitable for the target audience. These details directly affect the level of trust from foreign readers. It is necessary to have someone who understands both markets review them.
If you want to add an English version later, is that possible?
Yes, but doing it later is more labor-intensive than starting from scratch because you have to review the entire layout to accommodate the different text lengths between the two languages. If you know in advance that you will need bilingual content, it is better to create the original template with space for both from the beginning, so the internal team can update it later without needing to start over.