Certification of a Translation vs. Sworn Translation: What is the Difference?
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As we have discussed in many of our previous articles, official documents submitted to government institutions require strict confirmation of their authenticity.
Usually, clients facing this requirement contact the MS Mostowy Translator’s Office to request a complete translation of a document from scratch. However, we also encounter entirely different scenarios: clients bring us a ready-made text they translated themselves or generated using AI tools. In these cases, they do not ask for a translation; they ask exclusively for a certification of a translation.
In this article, we explain the exact differences between a standard sworn translation and the certification of a translation. We will cover the real-world differences in costs, delivery times, the legal liability of verifying someone else’s work, and when a sworn translator has the right to refuse to apply their seal.
What is a Sworn Translation (From Scratch)?
A sworn translation (tłumaczenie przysięgłe) is a highly formalized document prepared entirely from scratch by a licensed expert.
To obtain the right to issue these documents, a translator must pass a rigorous state examination administered by the Polish Ministry of Justice. After passing both written and oral stages, the translator takes an official oath before the Minister and receives a unique, round state seal. Only then can they officially translate foreign documents into Polish, granting them the exact same legal power as the original files.
What is a Certification of a Translation?
The certification of a translation (poświadczenie tłumaczenia) is a completely distinct statutory service offered by a sworn translator.
This service applies when a client arrives with a ready-made text—translated by themselves, a colleague, or an AI program—and requests the translator to grant it official legal validity by applying their signature and seal.
When a client requests a certification of a translation, the sworn translator must first inspect the original source document (such as a foreign driving license translation or a police certificate translation requirement). The expert then conducts a painstaking, word-for-word comparison of the original document against the client’s provided text to determine if it meets the strict criteria required for an official seal.
Can a Sworn Translator Refuse to Certify a Text?
Yes, the translator has the absolute legal right to refuse. Before an expert certifies a third-party text, they must ensure it meets uncompromising linguistic and legal standards.
If the submitted text contains spelling, grammatical, or stylistic errors, it cannot be certified immediately. The translator may choose to correct the text (if provided in an editable format), but this is entirely at their discretion.
It is crucial to understand that by applying their seal, the sworn translator assumes 100% legal responsibility for the content. They face severe criminal and disciplinary liability for any errors. Therefore, no reputable expert will perform a certification of a translation without a meticulous audit. If the provided text is riddled with AI-generated errors, the translator will refuse the certification and propose doing a sworn translation from scratch.
Final Form: Are They Different?
To a government clerk, the final physical form of both documents is identical. Whether the translator worked from a blank page or performed a certification of a translation, the output is always a printed document featuring the official round seal and a handwritten signature.
However, a certified document must follow rigid formal rules that amateur translators almost always miss. The document must include:
- A description of the physical document (e.g., paper color, letterheads).
- Security features (e.g., watermarks, embossed seals, or microprint found on documents like a birth certificate translation).
- Graphic elements and signatures (notated in square brackets).
- The statutory certification formula at the very end of the text.
Because clients bringing their own translations almost never include these legal annotations, the translator must intervene to format the text according to the Ministry of Justice guidelines.
Workflow and the Problem with AI
The process behind the two services is vastly different. A sworn translation means the expert works methodically, translating and formatting simultaneously.
A certification of a translation requires the expert to audit a pre-existing text. In the era of AI, clients often use online tools to translate complex contracts to save money. Unfortunately, AI frequently generates grammatically awkward, unnaturally long, and legally inaccurate sentences.
For the sworn translator, untangling and correcting a poor machine translation is often far more exhausting and time-consuming than translating the text from scratch.
Differences in Costs and Billing
Financial differences are a key factor for clients. In Poland, the statutory billing unit for sworn translations is not a physical A4 page, but 1125 characters (including spaces).
While this rule applies to both services, the rates differ by law:
- Sworn Translation (From Scratch): Billed at 100% of the base rate.
- Certification of a Translation: Billed at 50% of the base rate.
Theoretically, providing your own translation cuts the cost in half. However, this 50% discount only applies if the text is of such high quality that the translator actually agrees to certify it. For critical documents like an ID card translation or a passport translation, clients often prefer to pay the full 100% rate to guarantee flawless quality and immediate acceptance by authorities.
Turnaround Time
If a client provides a short, flawlessly translated document, a certification of a translation can be completed faster—often in just 1 business day instead of the standard two.
However, if the text requires heavy editing, correcting grammar, and inserting missing security descriptions, the verification process drags on. In such cases, certifying the text takes significantly longer than if the expert had simply translated it from scratch.
Summary
A sworn translation and a certification of a translation are distinct legal services with the same final appearance but entirely different workflows and pricing structures. While certifying a ready-made text costs 50% of the standard rate, it requires the text to be linguistically and formally perfect. Because the sworn translator bears full legal liability for the final document, they will reject poor-quality AI translations. Ultimately, commissioning an expert from the very beginning remains the safest way to ensure your documents are accepted by Polish authorities.
FAQ: Certification of a Translation vs. Sworn Translation:
While legally possible, it is highly unlikely to work smoothly in practice. AI tools frequently misinterpret legal terminology, use unnatural phrasing, and completely fail to describe official seals, signatures, or watermarks. If the text requires extensive rewriting, the sworn translator will refuse the 50% certification rate and instead propose a full translation from scratch to guarantee legal accuracy.
Yes. A sworn translator is legally obligated to inspect the original source document to perform a meticulous word-for-word comparison. They cannot verify and certify a translation without confirming the exact content and physical authenticity of the original file.
No. To a clerk at a public office, the final physical document looks exactly the same as a standard sworn translation. It will be printed out, properly formatted, and bear the sworn translator’s official round state seal and handwritten signature. The receiving institution will accept it without any issues.
Polish law and the Professional Code of Ethics dictate that a sworn translation must reflect the entire physical document, not just the plain text. Every coat of arms, official stamp, watermark, hologram, and handwritten signature must be explicitly described in square brackets. Because amateur translators almost never include these legal annotations, the sworn translator must intervene and add them before certifying the text.
If your provided text is riddled with grammatical errors, omissions, or mistranslations, the sworn translator will refuse to certify it in order to protect their professional license and legal liability. In such cases, they will inform you of the low quality and offer to discard your text, proceeding instead with a standard sworn translation from scratch at the regular 100% rate.
