Margin of Appreciation in Public Procurement 2026

Margin of appreciation in public procurement: the contracting authority's discretion when evaluating tenders. Limits, intensity of review and documentation duties.

Definition: The margin of appreciation describes the area of procurement decisions in which the contracting authority is granted its own expert judgement, with courts and review bodies only checking for gross errors, extraneous considerations or arbitrariness.

Last updated: January 2026 · Legal basis: § 127 GWB, Art. 67 Directive 2014/24/EU, case law of the German Federal Court of Justice and the CJEU

What is the margin of appreciation?

The margin of appreciation protects the contracting authority's expert decision from full review by procurement review bodies and courts — review is limited to defensibility and freedom from arbitrariness.

In public procurement there are decisions for which there is no single right answer, only a spectrum of defensible assessments. Whether a technical concept is better or worse, whether a reference is thematically comparable, or which bidder was more convincing in a presentation — such evaluative questions cannot be fully reviewed by a court because they require expert judgement.

Typical areas of application

The margin of appreciation is particularly relevant when assessing qualitative criteria and conceptual elements.

Recognised areas of the margin of appreciation:

Evaluation of qualitative award criteria (e.g. quality of concept, project organisation, pedagogical concepts)
Assessment of reference projects (thematic comparability, quality)
Suitability assessment regarding technical capability
Evaluation of presentations and sample pieces
Expert appraisal of life-cycle cost calculations

Limits of the margin of appreciation

The margin of appreciation is not unlimited — review bodies and higher regional courts examine whether the contracting authority exercised it lawfully.

A decision is legally flawed if the contracting authority:

Established the facts incompletely or incorrectly
Took extraneous considerations into account
Departed from the announced evaluation framework
Breached the principle of equal treatment
Decided arbitrarily or contradictorily

In such cases the review body can quash the decision and order a re-evaluation.

Duty of documentation

The contracting authority must document the exercise of its margin of appreciation completely, in order to defend it in any review proceedings.

A blanket award of points without reasoning is not sufficient. Each evaluation must be intelligible and tied to specific tender content. Review bodies and higher regional courts require documentation that makes clear which tender features led to which assessment.

Relationship to fully reviewable questions of law

Alongside the margin of appreciation there are procurement issues that are fully reviewable.

Whether a ground for exclusion is met, whether a deadline was complied with, or whether the contract notice contains the statutorily required information are fully reviewable questions of law. Only when it comes to the expert assessment of tender content and comparable evaluative questions is the contracting authority granted a protected margin.

FAQ

Can a bidder always have the evaluation of its tender fully reviewed by a court? No. Within the margin of appreciation the review body only checks whether the limits of that margin were observed, not whether the evaluation was "right" in the outcome.

What must a bidder argue when challenging the evaluation of a quality criterion? They must show substantively that the contracting authority exceeded the limits of its margin — for example through extraneous considerations, breach of equal treatment, or arbitrary scoring.

Is the margin of appreciation equally wide in all procurement procedures? No. In simple supply contracts where price is the only criterion there is barely any margin of appreciation. For complex service contracts with qualitative criteria it is considerably wider.

Last updated: January 2026 Information provided without warranty. For legally binding advice, please consult a law firm specialising in public procurement.