Outsourcing translation is a common decision in companies operating across several markets. However, many problems arise not from linguistic quality but from unclear agreements with the supplier. A well-defined contract with a translation agency for businesses prevents delays, misunderstandings and cost overruns. In this article you will see which aspects you need to secure before signing and how to protect your organisation’s interests.

Scope of the service: what is translated and how

One of the most frequent mistakes is to assume that “translation” means the same thing to both parties. That is not always the case.

The contract must clearly specify the type of documents (legal, technical, marketing, internal), the source and target languages, the estimated volume and the level of specialisation required.

For example, translating industrial data sheets is not the same as translating advertising campaigns. The first calls for terminological precision; the second, for cultural adaptation.

It is also worth defining whether the service includes revision, proofreading or localisation. This point tends to cause friction if it is not clearly set out from the start.

Deadlines and delivery times

In corporate environments, timing is critical. A delay in a translation can affect launches, tenders or internal communications.

The contract should include standard delivery times according to volume, procedures for urgent work and any service commitments.

For example, a company working with international legal documentation may need delivery within 24 hours. Without a clear clause, the agency may not prioritise these cases.

If your HR team manages internal multilingual communication, this point is especially relevant. When you work with sensitive documentation, it is worth being clear on how to interpret legal requirements correctly in another language (https://alosidiomas.com/c-mo-interpretar-correctamente-los-requisitos-legales-en-otro-idioma/), particularly where contracts, certificates or administrative texts are involved.

Confidentiality and data protection

Translation agencies routinely handle sensitive information: contracts, employee data or commercial strategies.

The contract should therefore include confidentiality clauses, compliance with data protection legislation and restrictions on the use of the information.

In international cases, it is also important to make sure that documents meet the necessary formal requirements. For example, you can look at how to guarantee the validity of foreign official documents in Spain (https://alosidiomas.com/documentos-oficiales-extranjeros-c-mo-garantizar-su-validez-en-espa-a/), especially if your company operates in several countries.

Quality and revision criteria

Asking for “quality translations” is not enough. You need to define what that means in operational terms.

The contract should establish revision processes, the use of glossaries or translation memories, and a clear system for handling corrections.

For example, in companies with their own terminology it is essential that the agency works with specific language guidelines.

This point should also be aligned with the company’s overall language strategy, especially where several departments or markets are involved.

Rates and billing model

One of the most sensitive points in any supplier relationship is the financial one.

The contract should clarify the price per word, hour or project, any additional costs, the billing frequency and the payment terms.

Avoid ambiguities such as “rates vary according to complexity” with no clear criteria. That usually leads to disputes.

For example, an agency may consider a text specialised and apply a surcharge, while the company sees it as standard.

Tools and technology

Today, many agencies use computer-assisted translation tools, memories and terminology management systems.

The contract should address whether specific tools will be used, who owns the translation memories and how they fit with internal systems.

This is especially relevant in long-term projects, where consistency and cost savings depend on sound technology management.

Managing issues and changes

Unforeseen events arise in any collaboration. What matters is having a clear framework for handling them.

The contract should include the procedure for requesting changes, response times and the responsibilities of each party.

For example, if a document changes after being sent for translation, it is important to know whether it counts as a new version and how that is handled in terms of cost.

Term and termination conditions

Even when the relationship works well, it is important to plan how it will end.

Include the term of the agreement, renewal conditions, notice periods and possible grounds for termination in the contract.

This protects both parties and prevents interruptions to the service.

Frequently asked questions

Working with a translation agency without a well-defined contract means taking on unnecessary risks. A good agreement not only protects your company, it also improves the quality of the service and the relationship with the supplier.

If you are managing language suppliers from HR or management, or you need to structure multilingual communication better, at ALOS we can help you define a strategy suited to your company.

Let’s talk about your project →