By Julien Sudre, Horizon Europe proposal writer and founder of Grant360 and Innotrope. Published: 19 November 2025. Updated: 23 September 2026.
A competitive Horizon Europe proposal matches the specific call topic, makes a credible case for Excellence, Impact, and Quality and efficiency of implementation, and shows how a capable consortium will turn its plan into results. Start with the topic's expected outcomes and scope, define measurable objectives, build the work plan and impact pathway together, and check every claim against evidence. The European Commission evaluates proposals against these three criteria, but the exact conditions and template depend on the call. Commission: how projects are chosen for funding.
This guide, written by an experienced grant writer with more than a hundred applications written, follows the writing process for collaborative Horizon Europe proposals, particularly Research and Innovation Actions (RIAs) and Innovation Actions (IAs). Other schemes, including European Research Council and Marie Skłodowska-Curie Actions calls, use different requirements. Always open the documents attached to your specific topic in the Funding & Tenders Portal before drafting.
How do evaluators assess a Horizon Europe proposal?
Evaluators assess what the proposal actually demonstrates under the published criteria: the quality of the idea and methods, the credibility of its pathway to impact, and the capacity and resources to deliver it. Write each section so a reader can follow the same chain of reasoning from problem to evidence to planned action. Consult the Commission's evaluation form for RIAs and IAs and the evaluation criteria attached to your call.
For example, if an objective promises a new diagnostic approach, its method should explain how performance will be tested, its work plan should assign the testing task and resources, and its impact section should explain who could adopt the result and under what conditions. A polished narrative cannot compensate for a missing link in that chain. Clear signposting helps evaluators locate evidence; it does not itself guarantee a higher score.
Read next: Inside Horizon Europe evaluation: how proposals are really read, judged, and selected · The three evaluation criteria explained: Excellence, Impact and Implementation in Horizon Europe.
How do you interpret the call topic before writing?
Read the topic as a set of testable requirements. Identify its expected outcomes (the changes the funded projects are meant to help produce), scope (activities and boundaries), action type, eligibility conditions, and any topic-specific requirements. Then make a working table linking each relevant requirement to a proposed activity, output, partner, and place in the application. Use the current Horizon Europe work programme and the call page as your primary sources.
If a topic asks for pilots with public authorities, stating that the project is "policy relevant" is too vague. Identify the authorities, what they will test, when they will provide feedback, and how that evidence informs the proposed outcome. Also distinguish an expected outcome of your topic from a broader impact described at destination level. The Commission's standard RIA/IA application form asks applicants to describe their contribution to both.
How do you build the right consortium?
Choose partners for the capabilities and roles the project needs, then show why the group can deliver together. A consortium should cover the research, development, demonstration, user engagement, exploitation, and management tasks relevant to this topic. The necessary mix varies by call; no type of organisation earns points merely by appearing on a partner list.
For each prospective partner, ask: Which task will they lead or perform? What resources and expertise do they bring? Which result depends on them? If two partners have similar expertise, explain their distinct contributions. In the implementation section, cross-check roles, person-months, deliverables, and budget. The Commission's application template includes the relevant work plan and consortium tables.
Read next: Building effective networks and winning consortia for Horizon Europe.
How do you write the Excellence section?
Explain what the project will achieve, why its approach advances beyond existing work, and how its methodology will produce reliable evidence. Make objectives specific enough to test. Describe the state of the art selectively: cite the most relevant work, identify the remaining gap, and show precisely how your approach addresses it.
For example, "develop a better platform" is not an assessable objective. "Validate a platform against defined performance measures in three operating environments by month 24" gives the reader something to examine, provided the methods and resources support that claim. Discuss interdisciplinarity, the gender dimension in research and innovation content, open science, ethics, and other cross-cutting matters where relevant and as required by the call; explain your choices rather than adding generic assurances. Check the Horizon Europe Programme Guide and the topic-specific template.
How do you write a credible Impact section?
Trace a plausible route from project results to uptake and the topic's expected outcomes, then explain the longer-term impacts the project could contribute to. Name the intended users, the benefits they may obtain, the barriers to adoption, and the measures the consortium can actually take. Separate effects attributable to the project from external conditions it cannot control.
A practical impact pathway might be: validated prototype -> use in three pilots -> adoption decision by participating organisations -> potential wider deployment. Evidence may include user interviews, baseline measures, regulatory analysis, or partner commitments. Set indicators with a baseline, target, timing, and method of measurement where possible; label forecasts as estimates. Distinguish dissemination (sharing results), exploitation (using results), and communication (engaging audiences about the project). The Commission's application form specifies what the Impact section must cover.
How do you design a feasible work plan?
Build work packages around the work needed to meet the objectives, then assign tasks, deliverables, milestones, resources, and risks coherently. Show dependencies and allow time to learn from tests, revise the approach, and use the results. The implementation criterion also considers the capacity of participants and the consortium as a whole. Commission: evaluation process.
For example, a pilot scheduled in the final month cannot reasonably inform earlier design choices. Move an initial pilot earlier or explain a staged validation plan. A milestone should mark a meaningful decision or verification point, such as meeting predefined performance criteria before wider testing. Assign each major risk an owner, likelihood and effect assessment, and a credible response. Reconcile the work plan against the budget and the tables in the official template.
How should you address intellectual property, confidentiality, and ethics?
Identify existing know-how that partners need, expected project results, possible ownership arrangements, access needs, and restrictions on disclosure early enough to shape the work. Background and results are distinct concepts under Horizon Europe; ownership and access rights depend on the grant rules and agreements among partners. Do not promise that every result will remain confidential or that each partner will automatically own whatever it contributes to. Consult the Commission's European IP Helpdesk guidance.
For a project involving patient data, for example, specify who collects the data, the lawful basis and safeguards to be assessed, how access is controlled, and what can be published. Address ethics and security questions in the relevant parts of the application using the actual project design. The Horizon Europe Programme Guide provides the programme-level context; the call documents and grant agreement govern the particular application and project.
What mistakes weaken a Horizon Europe proposal?
The most damaging weaknesses are unsupported claims or inconsistencies between the topic, objectives, methodology, impact pathway, team, schedule, and resources. Before submission, ask one reviewer to follow a single expected outcome through the entire proposal and another to check whether each major task has the partner, effort, deliverable, and budget it needs.
For instance, claiming Europe-wide uptake while planning no user validation or exploitation activity leaves a gap. So does promising four pilots while budgeting for only one partner's travel and effort. The European Research Executive Agency advises applicants to study the specific evaluation criteria, justify relevance and long-term impact, and show how the project contributes to the work programme's outcomes and impacts. REA: dos and don'ts when applying.
Read next: Why Horizon Europe proposals fail (and how to build one that wins).
What can you learn from stakeholders and earlier projects?
Use stakeholder input to challenge your assumptions about needs, uptake, and feasibility. Ask intended users what problem they face now, how they would judge success, and what would prevent them from using the result. Record the source and date of each insight, and distinguish a direct interview or documented commitment from your own inference.
How do you improve a proposal after rejection?
Use the evaluation report to diagnose the underlying weakness, then revisit the relevant logic across sections. A comment about an unclear impact pathway may require changes to the user engagement plan, the exploitation tasks, and the indicators, not only to the wording of the Impact section. Check the new call's conditions and template before reusing material: a revised topic may have different expected outcomes or requirements.
Create a review log with four columns: evaluator comment, root cause, proposed revision, and location of the revised evidence. Have someone who did not write the first submission test whether the new text resolves each comment. The official online manual explains the evaluation and submission process.
Conclusion: What is the key to writing a strong Horizon Europe proposal?
Start with the call, then make every part of the proposal support the same testable case: a worthwhile objective, a sound method, a believable route to impact, and a team with the time and resources to deliver. Verify the links between sections, substantiate your claims, and use the current official documents for the specific topic. These steps do not guarantee funding, but they make the proposal easier to assess on its merits.
If you need a structured place to organise the draft and coordinate contributions, explore Grant Genius. Check the product page for its current capabilities before describing a particular feature in a proposal workflow.
Further reading: How to write a winning Horizon Europe proposal.