In this guide
The Three-Strikes Rule (Effective 2024)
Since January 1, 2024, the EIC Accelerator enforces a strict resubmission limit: you may submit a maximum of three unsuccessful applications across the remaining Horizon Europe framework (through 2027). After three rejections — at any stage (Short Proposal, Full Proposal, or Interview) and for any form of support (Open or Challenges) — you are permanently blocked from the EIC Accelerator.
Critical detail: applications submitted before January 1, 2024 are NOT counted. Your rejection counter reset to zero on that date. If you were rejected twice under the old rules, you still have three attempts under the new system.
Each stage-specific rejection triggers different resubmission pathways:
After a first Step 1 (Short Proposal) rejection, you may resubmit once with major improvements. After a second Step 1 rejection, you face a 12-month cooling-off period, after which you must submit a "new or significantly improved" proposal.
After a Step 2 (Full Proposal) rejection, you may resubmit directly to one of the next two cut-off dates. After a second Step 2 rejection, you must restart at Step 1 with a new or significantly improved proposal, again after a 12-month cooling-off period.
After a Step 3 (Interview) rejection with a "potential GO" from the jury, you get one chance to make targeted improvements before one of the next two interview rounds. After an interview rejection with no "potential GO," you must restart at Step 1 with a substantially revised proposal.
The same legal entity is tracked regardless of whether the proposal topic changes. You cannot circumvent the limit by submitting a different project under the same company.
Before resubmitting, verify how many attempts you have used since January 2024. Each rejection at ANY stage counts as one strike. With only 3 attempts allowed through 2027, every submission must be your strongest possible version. Do not rush a resubmission — use the full available time to strengthen your proposal.
Reading Your Evaluation Summary Report
The Evaluation Summary Report (ESR) is the most important document you receive after an EIC rejection. At Step 2, three independent evaluators each assess three criteria (Excellence, Impact, Implementation), producing up to nine individual GO/NO GO ratings. Since June 2023, the ESR no longer attributes decisions to individual evaluators — you see the aggregated score and combined comments.
Understanding the scoring system: a score of 13/15 or above is the official threshold for interview invitation, though the effective threshold is approximately 13.6/15 due to competition. Here is how to interpret your score:
8–9 out of 9 GOs: Near-miss. One evaluator likely disagreed on one criterion. You need targeted improvements — this is a refinement exercise, not a rewrite. Identify the single dissenting criterion from the comments and focus your resubmission on strengthening that specific area.
5–6 out of 9 GOs: Mixed reception with significant concerns across multiple criteria. This requires a moderate rewrite. Look for recurring themes — if two evaluators flagged weak market evidence, that is your priority. You likely need new data (customer LOIs, pilot results) in addition to better writing.
3–4 out of 9 GOs: Fundamental issues. The proposal has structural problems that cannot be fixed with editing. Consider whether a major overhaul is realistic within your remaining attempts, or whether a different programme might be a better fit.
1–2 out of 9 GOs: The proposal is significantly below threshold. A near-complete rewrite is needed, and you should seriously evaluate whether the EIC Accelerator is the right programme for your current stage of development.
Important: evaluator comments sometimes contain factual errors. One analysis found that "it is common to encounter at least one factual mistake in any given ESR" — misreading Letters of Intent, overlooking Freedom to Operate analyses, or citing incorrect public data. Your rebuttal letter should professionally correct any such errors.
Colour-code your ESR feedback: green for positive comments (keep these sections unchanged), yellow for mixed feedback (refine), and red for negative feedback (rewrite). This visual map shows you exactly where to focus your limited resubmission time.
The Rebuttal Letter: Your Most Powerful Tool
When you resubmit to the EIC Accelerator, your application includes a rebuttal letter addressing the previous evaluation feedback. This document is critically important because new evaluators will NOT carefully re-read your entire proposal — they will focus primarily on the rebuttal and the sections that have been changed. This gives you significant influence over how the resubmission is perceived.
Structure your rebuttal letter in three parts:
Part 1: Acknowledged improvements. For every criticism you agree with, describe the specific change you have made, reference the exact page and section in the revised proposal, and briefly explain why the change addresses the concern. Be concrete: "We have added three Letters of Intent from automotive OEMs (see Annex 3, pages 42–44) totalling EUR 1.2M in committed pilot agreements" is far stronger than "We have improved our market evidence."
Part 2: Professional corrections. If evaluators made factual errors — misquoting your LOIs, misunderstanding your technology, citing incorrect competitor data — correct these errors objectively and politely. Provide evidence. Never be dismissive or aggressive; the tone should be that of a colleague clarifying a misunderstanding, not a defendant arguing a case.
Part 3: Change log. Provide a concise table listing every significant modification, with columns for: Issue Raised, Section Modified, Change Description, and Page Reference. This makes it easy for evaluators to verify your improvements without hunting through the full proposal.
Common rebuttal mistakes: writing a defensive essay instead of a structured response; addressing only easy criticisms and ignoring the hard ones; making promises about future improvements ("we plan to secure customers") instead of presenting evidence of actual improvements; and submitting a rebuttal that is too long — keep it to 2–3 pages maximum.
Write your rebuttal letter first, before revising the proposal. The rebuttal forces you to confront every piece of feedback systematically. Once you have a clear plan for addressing each point, the proposal revisions become straightforward.
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Create Free AccountWhat to Change: Stage-by-Stage Strategy
The required depth of revision depends on where you were rejected.
Rejected at Step 1 (Short Proposal): The short proposal is a 5-page pitch plus a 3-minute video. If rejected here, the issue is usually one of three things: the innovation was not perceived as sufficiently breakthrough, the market opportunity was not compelling, or the video failed to communicate credibility and vision. For resubmission, sharpen the first paragraph — evaluators decide within seconds whether your innovation is genuinely novel. Add quantified evidence of market pull. Re-record the video with a clearer narrative arc: problem, solution, evidence, team, ask.
Rejected at Step 2 (Full Proposal): This is the most common rejection point and the one where resubmission is most productive. Focus on the criteria that received NO GO ratings. The most frequent weaknesses are: lack of concrete commercial evidence (fix by adding LOIs, pilot data, pre-orders), unclear competitive differentiation (fix with a detailed comparison table using specific metrics), insufficient IP strategy (fix by adding a freedom-to-operate analysis), unconvincing financial projections (fix with bottom-up, assumption-driven models), and weak team justification (fix by highlighting or adding key hires). Remember: 2026 proposals are limited to 20 pages, so you must be more concise and impactful than in previous years.
Rejected at Step 3 (Interview): If the jury gave a "potential GO," your proposal is strong but your pitch or Q&A performance needs work. Invest in mock interviews with people experienced in EIC jury dynamics. Script your 10-minute pitch word-for-word, then practice until it is natural. Prepare answers to 50+ potential questions, focusing on the areas where jury feedback was weakest. If the jury gave no "potential GO," you must restart at Step 1, and the feedback suggests fundamental issues with your proposition that go beyond presentation — revisit your value proposition, market evidence, and team composition.
For Step 2 resubmissions, highlight changes in the proposal using a different text colour or marginal annotations (if the submission portal allows it). This makes it easy for new evaluators to see what has changed — and subtly communicates that you have been responsive to expert feedback.
Strengthening Substance: The Evidence Upgrade
The single most effective resubmission strategy is not better writing — it is better evidence. Between your rejection and your resubmission, use the time to accumulate proof points that address the specific weaknesses identified in your ESR.
For Excellence concerns (technology not sufficiently novel or mature), the most impactful additions are: new test data from a more relevant environment (moving from lab tests to pilot deployments), independent validation results (third-party testing, certification milestones), new IP filings (provisional patents, granted patents, design registrations), and peer-reviewed publications or preprints describing your breakthrough.
For Impact concerns (weak market evidence, unconvincing commercialisation strategy), focus on: Letters of Intent from named customers with specific budget commitments, signed pilot agreements or paid proof-of-concept projects, partnerships with distribution channels or system integrators, and updated financial projections based on actual (not assumed) unit economics. Each LOI should specify the customer's organisation, the decision-maker who signed it, the scope of the intended engagement, and a credible budget figure.
For Implementation concerns (team gaps, unrealistic timelines, inadequate risk management), consider: hiring or confirming key team members who were missing, securing advisory board members with relevant expertise, refining your Gantt chart with more realistic milestones, and adding a risk register with specific mitigation measures and contingency plans.
The time between rejection and resubmission (which can be immediate for Step 2 re-submissions, or 12 months after a second rejection) is your opportunity to make your company genuinely stronger — not just to rewrite the proposal. The best resubmissions are obvious: evaluators can see that the company has progressed since the last application, with new data, new partnerships, and new milestones that were not available before.
Use the time between rejection and resubmission to collect at least 2–3 new evidence items (LOIs, pilot results, hires, IP filings) that directly address ESR criticisms. A resubmission with the same evidence and better writing rarely succeeds — a resubmission with new evidence almost always scores higher.
When Not to Resubmit
Not every rejection should lead to a resubmission. With the three-strikes rule, each attempt is precious — wasting one on a premature resubmission reduces your options without improving your odds.
Do not resubmit if your score was below 4/9 GOs and the feedback points to fundamental issues with your value proposition, technology maturity, or market positioning. In this case, a different programme may be more appropriate. EIC Transition (for TRL 3–5 technologies), Horizon Europe Collaborative Research (for consortium-based R&D), or national innovation grants may provide a better foundation before returning to EIC Accelerator.
Do not resubmit if the feedback challenges the core premise of your innovation ("this is an incremental improvement, not a breakthrough") and you cannot genuinely demonstrate a step-change over existing solutions. The EIC Accelerator is explicitly designed for market-creating innovations. If your product is a better version of something that already exists, the programme may not be the right fit — regardless of how good your proposal writing is.
Do not resubmit if you cannot add meaningful new evidence before the next deadline. A resubmission that is "better written" but contains the same data, the same LOIs, and the same team will likely receive a similar score. New evaluators bring fresh eyes but the same evaluation criteria — they will reach similar conclusions from similar evidence.
Do consider resubmitting if your score was 6/9 GOs or above, you have clear feedback on what to improve, and you can add concrete new evidence. Also consider resubmitting if the feedback contained factual errors that materially affected the evaluation — your rebuttal can correct these while also strengthening the proposal.
Finally, consider the opportunity cost. Preparing a competitive EIC Accelerator application takes 200–400 hours of skilled effort. If your remaining runway is better spent on product development, customer acquisition, or a simpler national grant application, that may be the higher-impact choice.
If you decide not to resubmit, check whether you received a Seal of Excellence. Many SoE holders secure national co-financing that provides comparable funding without the competitive pressure of a new EIC evaluation. Spain, Portugal, Slovakia, and Belgium all have dedicated SoE funding schemes.