Threshold Calculation Methods

Before a contracting authority can decide which procurement rules apply to a particular requirement, it must calculate the estimated value of the contract. Getting this right matters: underestimate the value and you may run a procedure that is legally insufficient; overestimate and you impose disproportionate process on a small purchase. EU procurement law sets out detailed methods for making this calculation in a consistent and manipulable-resistant way.

What are threshold calculation methods?

Article 5 of Directive 2014/24/EU lays out the core rules for estimating contract value. The key principles are:

Total value over the contract's life. The estimated value must cover the full potential duration of the contract, including all option periods and renewals, not just the initial term. A two-year contract with a two-year extension option must be valued as a four-year contract for threshold purposes.

Exclusion of VAT. All thresholds are assessed on an ex-VAT basis. See VAT exclusion in threshold calculation for detail.

Highest reasonable estimate. The estimated value must reflect the most plausible market price at the time of the decision to procure. Authorities cannot use an artificially low estimate to keep a contract below the threshold.

Framework agreements and dynamic purchasing systems. The value of a framework agreement is the maximum total value of all contracts anticipated under the framework over its entire duration. A four-year framework estimated to generate 300,000 euros of call-off contracts must be valued at 300,000 euros in total, regardless of how many individual call-offs are placed.

Aggregation of lots. When a requirement is divided into lots, the estimated value is the total of all lots. Individual lots below certain de minimis values may be awarded without the full directive procedure, subject to overall caps. See lot value estimation and aggregation rules.

Irregular contracts. For contracts that are renewed regularly or whose price varies, the estimated value is calculated on the basis of the actual total expenditure in the preceding twelve months or financial year (adjusted for anticipated changes), or the estimated total expenditure in the twelve months following the first delivery.

Why it matters for bidders

Understanding how authorities calculate estimated value helps you anticipate which contracts will be published on TED. A framework with a total estimated value above the threshold must be advertised even if individual call-offs are small. Equally, if you notice that an authority is running multiple small contracts that appear to be fragments of a larger requirement, anti-splitting rules may mean those should have been aggregated and published as a single above-threshold opportunity.

Knowing the calculation methodology also helps when challenging a procurement decision. If an authority used an implausibly low estimate to avoid full procedure, that is grounds for a formal complaint to the national oversight body.

Example

A Danish government agency runs a four-year framework agreement for translation services with twelve approved suppliers. In the previous financial year, total call-off expenditure under a similar framework was approximately 180,000 euros. Anticipating a 10 percent increase, the agency estimates total expenditure under the new framework at around 790,000 euros over four years. Because this exceeds the central government services threshold of 143,000 euros, the agency must publish the framework establishment procedure on TED.

Frequently Asked Questions

What if the actual contract value ends up significantly different from the estimate?

Minor differences between estimate and outturn are normal and do not create legal problems. The question is whether the estimate at the time of the decision to procure was made in good faith and reflected a reasonable market assessment. A contract that was genuinely estimated below the threshold but turns out to exceed it during execution does not retrospectively breach the directive, provided the original estimate was honest.

Can an authority use historical expenditure as the basis for its estimate?

Yes, for regularly renewed or recurring contracts. Article 5(12) of Directive 2014/24/EU expressly permits this, with adjustments for anticipated changes. For new requirements with no historical data, market engagement and benchmarking are appropriate sources for the estimate.

How does the calculation method interact with framework lots?

If a framework is divided into subject-matter lots (for example, one lot for translation services and one for interpreting services), the total estimated value across all lots is used for threshold assessment purposes. If that total exceeds the threshold, the full framework procedure must follow directive rules even if individual lots are below the threshold individually.