The transport contract is the legal agreement by which a carrier undertakes to move goods from one point to another in exchange for an agreed price. Understanding how the carrier contract works is not a luxury reserved for large companies: it is a necessity for any small business or entrepreneur who wants to control their logistics costs and avoid conflicts. Three parties are involved in this agreement: the shipper or sender, the carrier or transporter, and the recipient. Each has specific rights and obligations that, if not clearly defined from the outset, generate costly disputes and delays that directly affect your operations.
How is the carrier contract formalized and what documents does it require?
The transport contract does not require a specific written form to be valid, but its documentary proof is what protects both parties in the event of any incident. The central document is the bill of lading, which acts as proof of the agreement and records the conditions of the service. It is issued in three copies: one for the sender, another accompanies the goods, and the third is kept by the carrier. Each copy has its own legal value.
The format of the document varies depending on the mode of transport:
- CMR consignment note: for international road transport, regulated by the CMR Convention of 1956.
- AWB (Air Waybill): for air transport, issued by the airline or freight agent.
- Bill of Lading (B/L): for maritime transport, functioning as a title of ownership of the goods.
- National consignment note: for land transport within Spain, regulated by Law 15/2009.
Documentary obligations fall on both parties. The sender is responsible for preparing and issuing the consignment note with accurate information about the goods. The carrier, for their part, must sign it and note any reservations if they detect damage or discrepancies at the time of collection. Omitting that notation is equivalent to accepting the goods in perfect condition, which can prove costly in the event of a subsequent claim.
Professional tip: Prepare internally a loading sheet with weight, dimensions, declared value, and condition of the goods before each shipment. This information feeds into the consignment note and prevents discrepancies between what was delivered and what was received.
From October 2026, the electronic Control Document for road transport becomes mandatory in digital format. The eCMR is legal and valid, but will not be required on that same date. The transition requires coordination between the shipper and the carrier to avoid disrupting operations.
What are the responsibilities and compensation limits of the carrier?
The carrier is liable for the total or partial loss of the goods and for damage occurring from the time of collection until delivery. The law establishes a presumption of liability: if the goods arrive damaged or do not arrive at all, the carrier must prove that the damage was due to a cause beyond their control, such as force majeure or inadequate packaging by the sender.
Compensation limits are set by law and vary depending on the scope of transport:
- Domestic transport (Law 15/2009): the maximum compensation is approximately 6 €/kg of damaged or lost goods.
- International transport (CMR Convention): the limit rises to approximately 10 €/kg, calculated on the gross weight of the affected goods.
- Value declaration: both domestically and internationally, the shipper may declare a value higher than the legal limit. This extends the carrier's coverage, but carries an additional cost that is negotiated in the contract.
- Cargo insurance: the shipper's own insurance covers what the carrier's liability does not, especially for high-value shipments.
The carrier's liability is contractual by default, but may give rise to non-contractual liability if the damage affects third parties outside the contract. For small businesses, this means that an accident during transport can generate claims that go beyond the value of the goods shipped.
Negotiating an explicit value declaration in the contract is particularly useful when shipping high unit-value products, such as electronics, jewellery, or machinery. Without that declaration, the legal limit of 6 €/kg may cover only a fraction of the actual value of what was lost.
What types of carrier contracts exist and which one should you choose?
The two main contracting models in transport are dedicated and spot. Choosing between them depends on shipment volume, regularity of demand, and tolerance for price risk.
| Feature | Dedicated transport | Spot transport |
|---|---|---|
| Duration | 12 to 36 months | Per trip or shipment |
| Rate | Fixed or with revision formula | Variable according to market |
| Volume commitment | Yes, with penalties | No |
| Flexibility | Low | High |
| Cost predictability | High | Low |
| Ideal for | Businesses with stable demand | Seasonal peaks or trials |
Dedicated transport offers stability and resource optimisation that is especially valuable for businesses with fixed routes and predictable volume. A food manufacturer sending weekly pallets to the same distribution chain benefits from fixed rates and service priority. Spot transport, on the other hand, is the right option for a seasonal business that needs extra capacity during the Christmas campaign without committing for the rest of the year.
Professional tip: If you are starting out with a new carrier, negotiate a spot contract for the first three months. This allows you to assess the actual service level before signing a long-term dedicated agreement with penalties for volume shortfalls.
When negotiating any type of contract, pay close attention to price revision clauses, cancellation notice periods, and penalty conditions for non-compliance by both parties. An unbalanced contract that only penalises the shipper for unshipped volume, but not the carrier for delays, does not protect your interests.
2026 Regulatory Updates Affecting Carrier Contracts
The legal framework for road transport in Spain has changed significantly in 2026. Ignoring these developments can result in penalties or contracts that no longer comply with current regulations.
The most relevant changes are:
- Mandatory fuel price revision: Royal Decree-Law 9/2026, published in the Official State Gazette on 15 April 2026, requires the contract price to be revised when fuel costs vary by 5% or more between the signing of the contract and the execution of the transport. This revision is automatic and does not require prior agreement between the parties to take effect.
- Penalties for non-compliance: failing to apply the price revision when required constitutes a sanctionable infringement under the general contracting conditions for land transport.
- Electronic Control Document: from 5 October 2026, electronic registration of the Control Document is mandatory for road transport in Spain. The eCMR is legally valid, but its use will not be enforceable from that same date.
- Itemised invoicing: regulations recommend that the carrier's invoice explicitly details the fuel component and any adjustments applied, to ensure transparency and facilitate audits.
For a small business, the practical impact is clear: any contract signed before April 2026 that does not include a fuel price revision clause must be reviewed. A contract that fixes a closed price with no adjustment mechanism can generate disputes when the carrier claims the difference under the new law.
Practical Recommendations for Structuring an Efficient Contract
A well-drafted contract is not a bureaucratic document. It is the tool that prevents a minor discrepancy from becoming a costly dispute. Documenting deadlines, payments, responsibilities and penalties in writing reduces disputes and facilitates operational control.
These are the points that must be included in any carrier contract:
- Service description: routes, frequency, type of goods, temperature or handling conditions if applicable.
- Price and payment terms: base rate, payment conditions, deadline and method. Include the fuel revision formula required by RDL 9/2026.
- Delivery deadlines and penalties: define what happens if the carrier fails to meet the agreed timescales. Without this clause, you have no basis for a claim.
- Liabilities and insurance: specify the applicable compensation limits and whether a value higher than the legal limit has been declared.
- Incident procedure: how damage is documented, within what timeframe it is reported, and who manages the claim.
- Cancellation conditions: minimum notice period, penalties for early termination, and grounds for termination without penalty.
Professional tip: Always require a delivery note signed by the recipient for each delivery. That document is your proof that the goods arrived in the agreed condition and closes the carrier's liability cycle.
Key Points
A well-structured carrier contract defines responsibilities, sets prices with revision mechanisms, and documents each delivery to avoid disputes and control logistics costs.
| Point | Details |
|---|---|
| Bill of lading as proof | Always issue it with accurate data and require the carrier's signature with reservations if there is damage. |
| Compensation limits | These are €6/kg for domestic and €10/kg for international shipments; extend them with a value declaration for high-value goods. |
| Fuel price revision | RDL 9/2026 requires the price to be revised if fuel varies by 5% or more; include this in every new contract. |
| Dedicated vs spot | Use dedicated contracts for stable volume and spot for demand peaks or trials with new carriers. |
| Electronic Control Document | From October 2026 it is mandatory in digital format; coordinate the transition with your carrier in advance. |
What I've Learned Managing Contracts with Carriers
Most of the problems I see in transport contracts don't come from poorly worded clauses. They come from contracts that simply don't exist. The verbal agreement with a trusted carrier works fine — until there's damage, a delay, or an unexpected price increase. At that point, without a signed document, each party remembers the agreement differently.
What surprises small businesses most is discovering that the law already sets many default conditions. If you don't negotiate higher compensation limits, Law 15/2009 applies its own caps. If you don't include a price revision clause, RDL 9/2026 imposes one anyway. The contract isn't there to invent new rules: it's there to customise the existing ones in your favour.
Another common mistake is signing dedicated contracts without having tested the carrier first. A 24-month agreement with penalties for unshipped volume can become a trap if the service level doesn't meet expectations. The initial spot phase isn't a sign of distrust: it's basic risk management.
The documentary digitalisation arriving in October 2026 is an opportunity, not a burden. The electronic Control Document eliminates paper, reduces transcription errors and makes traceability easier. Businesses that coordinate this transition with their carriers before the deadline will have a real operational advantage over those who leave it to the last minute.
— Yurii
How Jetsend Simplifies Carrier Management
Managing contracts, comparing rates and keeping documentation up to date with multiple carriers takes time that a small business simply doesn't have. Jetsend solves that problem by allowing you to compare carriers in Spain in a single click, with up-to-date rates and no need to negotiate each shipment separately.
The platform is adapted to current Spanish regulations, including automated invoicing with VeriFactu to meet tax requirements without additional manual work. For producers and B2B businesses, Jetsend manages palletised shipments and returns from a single dashboard, with real-time tracking. Small businesses using Jetsend saved up to €1.4 million in shipping costs in 2025. If you want to optimise your logistics without becoming an expert in transport contracts, Jetsend is the starting point.
FAQ
What is the bill of lading and what is it for?
The bill of lading is the document that proves the existence of the transport contract and sets out its conditions. It is issued in three copies and legally protects both the sender and the carrier in the event of damage or loss.
How much can you claim if the carrier loses your goods?
In domestic transport, the limit is approximately €6/kg of lost goods under Law 15/2009. In international transport under the CMR Convention, the limit rises to €10/kg. You can extend that coverage by declaring a higher value in the contract.
What changes in transport contracts under RDL 9/2026?
Royal Decree-Law 9/2026 requires the contract price to be revised when fuel costs vary by 5% or more between the signing and execution of the service. This revision is automatic and non-compliance is subject to penalties.
When is a dedicated contract better than a spot one?
A dedicated contract is advisable when shipment volumes are stable and predictable, as it offers fixed rates and service priority for 12 to 36 months. Spot transport is more suitable for one-off needs or for evaluating a new carrier before making a long-term commitment.
What is the electronic Control Document and when is it mandatory?
The electronic Control Document is the digital record that certifies the completion of road transport in Spain. Its use in electronic format is mandatory from 5 October 2026, although the eCMR has been legally valid since before that date.
