tender validity period

A tender validity period is the timeframe during which a submitted bid in a public procurement procedure remains legally binding on the supplier. During this period, the tenderer cannot withdraw or modify their offer. Think of it as an acceptance deadline — the contracting authority has this time to evaluate submissions and award the contract.

How does the tender validity period work?

The contracting authority specifies the tender validity period in the tender documents. The period defines how long bids remain binding after the submission deadline has passed. EU Directive 2014/24/EU does not prescribe a specific mandatory validity period — it is left to the contracting authority's discretion, subject to the principle of proportionality.

In practice, validity periods of 60 to 120 days are common across EU member states. The period should be long enough to allow for thorough evaluation but not so long that it places an unreasonable burden on tenderers. Factors such as evaluation complexity, internal approval processes, and whether negotiation is involved all influence the appropriate duration.

Key rules and consequences

• Binding commitment: The tenderer cannot withdraw their bid while the validity period is running — the submission is legally binding
• Extension before expiry: The contracting authority may ask all remaining tenderers to extend the period — it is sufficient that one agrees
• Upholding after expiry: In some jurisdictions, the authority may ask tenderers to uphold their bids within a reasonable time after expiry, provided this does not substantially alter the competition
• Consequence of expiry: Awarding a contract after the validity period has expired without a valid extension may constitute an illegal direct award

The standstill period must also fit within the tender validity period, so contracting authorities need to account for this when setting the duration. Tools like Cobrief help suppliers track critical deadlines throughout the procurement process, ensuring no validity period is overlooked.

The tender validity period is a fundamental mechanism in public procurement that balances the authority's need for evaluation time with the tenderer's need for certainty. A well-calibrated period supports an efficient, fair process without placing an unreasonable burden on suppliers.