Contract Maximum Duration

Contract maximum duration is the ceiling on how long a public contract may run under the terms established at procurement. It is a legally significant figure that affects threshold calculations, market contestability, and the supplier's commercial planning horizon. Buyers must publish the maximum duration in their procurement documents, and any extension beyond this figure requires re-procurement.

What is Contract Maximum Duration?

The maximum duration is the sum of the initial contract term and all extension options as originally published. For example, a contract with a three-year initial term and two one-year options has a maximum duration of five years.

EU procurement law sets explicit maximum duration rules only in specific contexts:

• Framework agreements: Directive 2014/24/EU (Article 33) caps framework agreements at four years in general, with exceptions for defence and security frameworks under Directive 2009/81/EC, which may extend to seven years.
• Concession contracts: Directive 2014/23/EU caps concession duration at the time reasonably needed to recoup the concession-holder's investment, with guidance suggesting five years as a baseline for straightforward concessions.
• Service contracts: No universal cap, but the duration must be proportionate to the subject matter. A service contract running for twenty years without re-competition would face serious legal scrutiny under proportionality and competition principles.

In the UK, the Procurement Act 2023 does not set blanket duration caps for most contracts, but procurement policy notes and Cabinet Office guidance signal that central government contracts should be re-competed at market intervals, generally three to seven years for major service contracts.

Why it matters for bidders

The maximum duration, as publicly stated in procurement documents, defines your investment horizon. If the buyer has set a maximum duration of four years, you will not be able to amortise capital expenditure or recover mobilisation costs over a longer period, regardless of informal assurances. Conversely, a longer maximum duration with multiple extension options can justify more significant upfront investment in dedicated resources, technology, or infrastructure.

Maximum duration also matters for contract value (awarded) calculations: EU threshold assessments are based on the total value over the maximum duration, not just the initial term. This is why a modest annual value can still trigger OJEU publication requirements if the contract runs for many years.

Example

A Danish municipality procures a dynamic traffic management system. The initial contract term is three years, with two two-year options, giving a maximum duration of seven years. The supplier builds a ten-person local operations team and a bespoke software platform, spreading these fixed costs over seven years in its financial model. The contract notice published on TED states the maximum duration as eighty-four months, ensuring compliance with disclosure obligations.

Frequently Asked Questions

Can the maximum duration be extended by variation after contract award?

No. Extending beyond the published maximum duration would constitute a material modification of the contract under Article 72 of Directive 2014/24/EU, which is not permitted unless one of the specific grounds for modification applies (such as unforeseen circumstances, or additional works below the 50% value threshold). In practice, modifying maximum duration is one of the riskier variations to attempt and is subject to legal challenge.

Is the maximum duration the same as the contract period for OJEU threshold purposes?

Yes. For threshold calculations, the contracting authority must estimate the total value over the full maximum duration, including all options. This prevents authorities from artificially structuring short initial terms with many options to keep the published value below OJEU thresholds.

What happens when the maximum duration is reached?

The contract must end or be re-competed. There is no automatic renewal. If services are still needed, the authority must run a fresh procurement (or use an existing framework or dynamic purchasing system if one is available). Allowing a contract to roll over indefinitely beyond its maximum duration is a common compliance failing and a source of audit risk.