What a certified
translation is
A certified translation is a complete, literal translation accompanied by a signed statement — the Certificate of Translation Accuracy — in which the translator attests that the translation is complete and accurate and that they are competent in both languages. The certification is about the translation's content. It's what federal regulation 8 CFR 103.2(b)(3) requires for USCIS filings, and what universities, credential evaluators, employers, and most institutions mean when they ask for an 'official translation.'
Important American peculiarity: the U.S. has no state-licensed 'sworn translator' system like Spain or Brazil. Any competent translator can certify; the signed statement itself is the legal instrument. Professional providers add letterhead, contact information, and consistent formatting because institutions trust translations they can trace back to an accountable business.
What a notarized
translation adds
A notarized translation is a certified translation whose certification the translator signs before a notary public. The notary then adds their seal and commission details. Here's the crucial nuance: the notary does not review the translation and cannot vouch for its accuracy — notaries verify the identity of the person signing. What notarization adds is an extra layer of formality around who signed the certification, not around what the translation says.
That extra layer matters to specific audiences: some state courts and county clerks, some DMVs, certain professional licensing boards, some foreign consulates — and, importantly, apostille chains. If a translation will be used abroad and needs an apostille, the notarization creates the notarial signature that the state then authenticates. That's why translations heading overseas are so often notarized even when nobody abroad asked for a 'notarized translation' by name.
Who requires which:
the practical map
USCIS and immigration courts: certified only — notarization adds nothing and USCIS says so explicitly. Universities, WES/ECE/SpanTran: certified. Most employers and banks: certified. State courts, county clerks (marriage licenses with foreign divorce decrees, name changes): frequently notarized — ask the clerk. DMVs: varies by state; several want notarized. Foreign consulates and documents for use abroad: often notarized, because of the apostille logic above or the consulate's own rules.
The universal answer: the receiving office decides. Not the translator, not a blog post — the specific clerk, agency, or institution taking your document. When in doubt, ask them one question: 'Do you require a certified translation, or does the translator's certification need to be notarized?' Their answer settles it.
What each costs and
when upselling happens
At Selládo: certified translation is $29.95 per page; notarized translation is $44.95 per page, which includes the certified translation and the notarial act. Rush options exist for both. Industry-wide, notarized always costs more because a notarial act has real cost and logistics.
Which creates the upsell temptation this article exists to warn you about: charging USCIS applicants for notarization they don't need is easy money for less scrupulous services, because customers assume 'more official' is safer. It isn't — it's just more expensive. Our WhatsApp conversations regularly end with us telling someone to spend less: if your document is only going to USCIS, buy certified, keep the $15.
Decision guide and
the combined cases
Going to USCIS, a university, an evaluator, or an employer? Certified. Going to a court, county clerk, or DMV? Ask the office; default to notarized if unreachable. Going abroad? Usually notarized and then apostilled, with the translation covering the apostille page — and check whether your destination requires a local sworn translator (Spain and Brazil often do for in-country procedures; we tell you honestly when that's the case).
The combinations are where one-stop providers earn their keep: a power of attorney heading to Mexico typically needs translation, notarization, and apostille in the correct sequence. Do those with three vendors and you'll spend weeks coordinating; do them in one Selládo order and the document leaves ready for the foreign notary. Send a photo by WhatsApp, tell us where it's going, and we'll quote exactly the product you need — and nothing you don't.
Five real scenarios,
solved
Scenario one: Mexican birth certificate for an I-485 adjustment case. Certified, $29.95. USCIS explicitly doesn't want notarization; buying it wastes $15. Scenario two: foreign divorce decree for a marriage license at a county clerk's office. Call the clerk; many counties want notarized. If you can't reach them before your appointment, notarized is the safe buy — a certified-only translation may send you home for a second visit that costs more than the $15 difference ever would.
Scenario three: diploma and transcript for WES credential evaluation. Certified, word-for-word. Evaluators care about literalness and completeness, not notary seals. Scenario four: power of attorney you're sending to your sister in Colombia so she can sell your apartment. Notarized — not because Colombia asked for 'notarized translation,' but because the document chain needs a notarial signature to apostille, and Colombian notarías will want the finished, apostilled, translated package. Scenario five: Ukrainian documents for a job application and state nursing license. The employer needs certified only; the licensing board might want notarized — one call to the board settles it, and translating once with an upgrade option beats guessing.
The pattern across all five: the decision never depends on the document type alone — a divorce decree needs different treatment for USCIS than for a county clerk. Receiving office first, product second. Get that order right and you'll never buy the wrong translation again.