Every year, the European Commission publishes thousands of pages of call documents, work programmes, and evaluation guidelines. Companies spend months writing proposals. Most get rejected.

The success rate for Horizon Europe is around 16%. For the EIC Accelerator, it is lower. But here is the thing we see over and over again: the proposals that get funded are not always the most technically impressive. They are the ones that followed the process correctly, addressed every evaluation criterion, and made the evaluator's job easy.

This guide walks through the complete process, from choosing the right programme to clicking submit. It applies to Horizon Europe, the Innovation Fund, Eurostars, LIFE, Global Gateway, and most other EU funding programmes. Where programmes differ, the differences are noted.

Step 1: Check if you are ready

Before choosing a programme, answer these questions honestly. If most answers are no, you are not ready to apply. And that is fine. Spending two to four months on a proposal when the basics are missing is the most expensive mistake in EU grants. We see it regularly.

Do you have clean financial data? EU grant budgets require personnel rates derived from actual salary data. Co-financing must be documented with evidence, not estimates. If your financial statements are unaudited, your cost basis is unclear, or your accounts have unexplained line items, fix this first. The Commission will run a financial viability assessment, and evaluators will scrutinise your budget line by line.

Is co-financing confirmed? If the programme funds 70%, where does the other 30% come from? "We will figure it out" is not a co-financing plan. You need the amount confirmed, the source identified, and evidence ready: a board resolution, a bank statement, an investor commitment letter. For consortium applications, every partner must confirm their own share independently.

Do you have one person who owns the application? Not a committee. One person with authority to make decisions, deliver documents, and resolve inconsistencies without scheduling a meeting. We have seen it play out dozens of times: the CEO answers some questions, the CTO handles others, the finance team fills in the budget independently, and the evaluator reads a proposal that tells three different stories about the same company.

Can your team respond within 24 hours? Once writing starts, it moves fast. If key documents take a week to arrive, if technical specifications require multiple rounds of internal discussion, or if decisions get postponed to the next board meeting, you will either miss the deadline or submit something incomplete. Neither is a good outcome.

Are your partners ready? For consortium programmes: are partners registered on the EU Funding & Tenders Portal with a validated PIC? Are roles and budget shares agreed? Are their personnel rates and financial data available? Each unregistered or unprepared partner adds weeks of delay. The administrative exclusion rate for consortium applications is 5.8%, compared to 1.2% for single-applicant calls. Most of that difference comes from partner documentation problems.

Is your technical story consistent? This one surprises people. Check your pitch deck, your website, your last grant application, and your product documentation. Do they all describe the same technology at the same readiness level? Evaluators cross-reference. If your concept note says TRL 6 but your work plan starts with laboratory validation, that contradiction will cost you points.

If you are confident on most of these, proceed to programme selection. If not, consider spending one to two months getting ready before committing to a call deadline. That time is never wasted.

Step 2: Find the right programme

This is the single most consequential decision in your grant application. A strong project submitted to the wrong programme will be rejected, and you will have spent months on something that never had a chance.

Start with three questions:

What stage is your technology? Each programme targets a specific Technology Readiness Level range. A laboratory prototype (TRL 3-4) fits Horizon Europe or EIC Pathfinder. A commercially ready product (TRL 7-8) fits the Innovation Fund or EIC Accelerator. Getting this wrong wastes months of work.

What is the project about? EU programmes are policy instruments, not general-purpose innovation funds. They fund projects that advance specific EU objectives: green transition, digital transformation, strategic autonomy, health, food security. If your project does not connect to an EU policy priority, EU grants are probably not the right funding source for you.

How many partners do you have? Some programmes require international consortia (Horizon Europe needs 3+ partners from 3+ countries). Others fund single companies (EIC Accelerator, Innovation Fund). This constraint alone eliminates most programmes for most applicants.

Once you have answers, narrow the list. If you are a Finnish SME with a cleantech product at TRL 6, your realistic options are probably the EIC Accelerator, the Innovation Fund, Eurostars (with a partner), or Business Finland. Not all twenty programmes in the landscape.

Do not start writing until you are confident about programme fit. If you are unsure, read the programme's work programme document. Every programme publishes one, and it describes in plain language what they want to fund and what they do not.

Step 3: Read the call document

Every EU grant has a call document (sometimes called a "call for proposals" or "topic description"). This is the single most important document in the entire process. Everything the evaluators are looking for is in here.

Read it three times. This is not a suggestion.

First read: scope. Does your project actually fit what they are asking for? The call might say "innovative extraction methods for critical raw materials." If your project is about recycling, not extraction, it may not fit, even if both involve raw materials. Scope mismatches are the most common reason for rejection, and they are entirely preventable.

Second read: evaluation criteria. Every call publishes the exact criteria evaluators will use to score your proposal. In Horizon Europe, these are typically Excellence, Impact, and Quality of Implementation, each scored 0 to 5. The call specifies the weight and threshold for each criterion. Your entire proposal must be structured around these criteria. Not loosely inspired by them. Structured around them.

Third read: constraints. Budget limits per project. Maximum consortium size. Eligible cost categories. Page limits. Formatting requirements. Submission deadlines. Missing any single constraint can result in administrative rejection before an evaluator even reads your proposal.

Write down the key parameters and keep this list visible throughout the writing process:

Submission deadline
Maximum grant amount per project
Funding rate
Page limit for the proposal
Evaluation criteria and their weights
Number of stages (some programmes have a short proposal first, then a full proposal)
Any mandatory deliverables or conditions

Every section of your proposal should trace back to something in the call document. If it does not, ask yourself why it is there.

Step 4: Build your consortium

This step applies to consortium programmes (Horizon Europe, Eurostars, LIFE, Global Gateway). If you are applying as a single company (EIC Accelerator, Innovation Fund), skip to Step 5.

A consortium is not a box-ticking exercise. Evaluators assess whether partners genuinely need each other and whether the division of work makes sense. Adding a partner from another country just to meet the geographic requirement, without giving them meaningful work, scores poorly. Evaluators have seen this pattern hundreds of times and they are not impressed by it.

What evaluators look for in a consortium:

Complementary expertise. Each partner brings something the others cannot do themselves.
Clear roles. Every work package has a lead. No partner is a passenger.
Geographic spread that makes sense for the project, not just for eligibility.
Track record. At least some partners should have demonstrated experience in the relevant domain.

How to find partners:

Existing professional networks and collaborators you already trust
National Contact Points (NCPs) in each EU country maintain partner databases
The European Commission's partner search tools on the Funding & Tenders Portal
Industry conferences and trade associations in your sector
Your national innovation agency (Business Finland, Bpifrance, etc.)

Timeline: Start partner search months before the call deadline. Forming a consortium, agreeing on roles, and collecting documents from multiple organisations in different countries almost always takes longer than writing the proposal itself.

Consortium agreement: You will need a formal agreement between partners covering IP ownership, decision-making, financial responsibilities, and what happens if a partner leaves. This gets negotiated in parallel with the proposal, not after. Use the DESCA model consortium agreement as a starting point. It is free, widely accepted, and saves weeks of legal back-and-forth.

Step 5: Structure your proposal

Most EU programmes use a common proposal structure with three main sections. The names vary between programmes, but the underlying logic is remarkably consistent:

Section 1: Excellence

This section answers: what are you going to do, and why does it matter?

Problem statement. What specific problem does the project address? Be concrete. "Climate change" is not a problem statement. "Industrial cement production accounts for 8% of global CO2 emissions and no commercially viable decarbonisation method exists at scale" is.
State of the art. What solutions already exist? What are their limitations? Where is the gap your project fills?
Objectives. What will the project actually achieve? Use specific, measurable language. "Develop a novel carbon capture process that reduces energy consumption by 40% compared to current amine scrubbing technology at pilot scale (TRL 6)."
Methodology. How will you achieve the objectives? What are the work packages, tasks, and technical approach? This is the core of the proposal.

Section 2: Impact

This section answers: what difference will this make beyond the project itself?

Expected outcomes. What results will the project produce? Publications, patents, prototypes, standards, policy recommendations?
Wider impact. How do the results benefit society, the economy, or the environment? Quantify where you can.
Target groups. Who will use the results? How will you reach them?
Exploitation and dissemination plan. How will results be used after the project ends? What is the path to market, to policy adoption, or to further research?
Communication plan. How will you make the project visible to the public?

Section 3: Quality of implementation

This section answers: can you actually deliver what you are promising?

Work plan. Work packages, tasks, deliverables, milestones, timeline (Gantt chart). Every activity described in the methodology must appear here. No exceptions.
Consortium description. Who does what, and why are they the right partner for that role?
Risk management. What could go wrong? What is your mitigation plan?
Budget overview. Resource allocation per partner, per work package.

A note on page limits. They are real. Horizon Europe typically allows 45 pages for a full proposal. Innovation Fund proposals are shorter. Do not exceed the limit by even one page. Evaluators are instructed to stop reading at the page limit, and they do.

Step 6: Write the technical sections

The technical sections (Excellence / Section 1) are where most applicants invest the most time. That instinct is correct, but the quality of writing matters just as much as the quality of the science.

Write for the evaluator, not for yourself. Your evaluator has four hours to read and score your proposal. They will read eight to ten proposals in a batch. They are an expert in your general field but probably not in your specific niche. Write clearly. Define acronyms. Use figures and tables to break up walls of text.

Lead with the key message in every paragraph. Do not build up to the punchline. State the result, then explain how you got there. Evaluators scan before they read in detail. If the first sentence of each paragraph does not convey the main point, they may never find it.

Be specific. "Our innovative approach" means nothing. Every applicant says it. "A membrane reactor combining catalytic methane reforming with hydrogen-selective Pd-Ag membrane separation, achieving 95% hydrogen purity at 450C" tells the evaluator exactly what you are proposing. That is the difference between a 3 and a 5 on excellence.

Address the state of the art honestly. Evaluators know the field. If you ignore a competing approach or overstate your novelty, they will notice. It is far better to acknowledge existing work, explain its specific limitations, and position your contribution clearly against it.

Methodology must be detailed enough to evaluate. A work package description that says "We will develop the prototype" is not evaluable. Describe the technical steps, the materials, the methods, the validation approach, and the success criteria for each task.

Figures save space and increase clarity. A technology diagram, a process flowchart, or a system architecture figure can replace pages of text. Use them generously. But make sure they are readable when printed and have proper captions and references in the text.

Step 7: Build the budget

The budget is not an afterthought, and it is not something you hand to the finance team to fill in at the end. Evaluators assess whether the resources match the proposed work. An unrealistic budget signals that you have not thought the project through.

Cost categories in most EU programmes:

Personnel: The largest category in almost every proposal. Calculated as hourly rate multiplied by hours per task. The hourly rate comes from actual salary divided by 1,720 productive hours per year. Use real salary data from payslips or contracts. Invented rates get caught.
Subcontracting: Work done by third parties. Must be justified (why can you not do it in-house?). Keep below 15% of total budget unless the call specifically allows more. Break it down: number of days multiplied by daily rate, with a clear scope of work.
Travel: Based on your organisation's internal travel policy. Include specific trips with estimated costs. A lump sum called "travel" with no breakdown is a red flag.
Equipment: Depreciation during the project period, not the full purchase price. A machine that costs 100,000 euros with a five-year useful life, used for a three-year project, contributes 60,000 euros in eligible costs. This catches many first-time applicants.
Other goods and services: Materials, consumables, licences, publications. Each item needs justification.
Indirect costs: Calculated as a flat rate in most programmes (25% of direct costs in Horizon Europe). You do not need to report actual indirect costs.

Common budget mistakes we see:

Personnel rates that do not match actual salaries (and sometimes do not even come close)
Equipment listed at full purchase cost instead of depreciation
Budget totals that do not match the work described (too much money for too little work, or too little for too much)
A line item called "miscellaneous" or "contingency" (neither survives evaluation)

Lump sum budgets (increasingly common in Horizon Europe) work differently. You propose a total cost per work package. If the work package is completed, you receive the agreed amount. No timesheets, no financial audits. But the budget must be realistic at proposal stage because it cannot be renegotiated later. Get it wrong and you are stuck with it.

Step 8: Prove your financial capacity

EU grants are co-funded. The Commission pays a percentage of project costs, and you pay the rest. But it goes further than that. The Commission needs to be satisfied that you can actually finance your share, manage the cash flow during the project, and survive financially if something does not go as planned.

This step eliminates applicants in every call. It is not a formality.

Co-financing: where does your share come from?

If the programme funds 70% of eligible costs (Horizon Europe Innovation Actions), you need to cover the remaining 30%. If it funds 60% (Innovation Fund, LIFE), you cover 40%. The question the Commission asks is not "can you afford this?" It is "show us the money."

Acceptable co-financing sources:

Own funds. Cash reserves, retained earnings, or a committed budget allocation. Support it with a recent balance sheet or bank statement.
Revenue from operations. If the project generates revenue during its lifetime (e.g. pilot sales), this can count, but only if you declare it and the programme allows it.
Third-party funding. Investment commitments, loans, or other grants. Must be documented with letters of intent or signed agreements. Verbal promises do not count.
In-kind contributions. Staff time, equipment access, or facilities provided at no cost. Rules vary by programme. Horizon Europe allows in-kind from third parties under specific conditions. The Innovation Fund does not count in-kind as co-financing at all.

What does not count: Projected future revenue with no contractual basis. Conditional funding that depends on the grant being awarded. Assets that cannot be liquidated.

For consortium applications, every partner must demonstrate their own co-financing independently. The coordinator cannot cover a partner's share.

The financial viability assessment

The European Commission runs a financial capacity check on every applicant requesting more than a threshold amount (typically 500,000 euros for Horizon Europe). The check uses your most recent audited financial statements and standard ratios:

Liquidity ratio (current assets / current liabilities). Below 1.0 signals short-term solvency risk.
Solvency ratio (equity / total assets). Below 0.15 raises concerns. Negative equity triggers enhanced scrutiny.
Profitability (net income / revenue). Persistent losses are a flag, especially for mature companies.
Debt-to-equity ratio. If debt exceeds equity by a factor of six or more, the Commission may impose conditions.

If you fail the check, you may receive reduced pre-financing (20% instead of the standard 40-50%), which directly impacts your cash flow. The Commission may require a bank guarantee or a guarantee from a parent company. In extreme cases, your participation can be rejected entirely.

If you are a startup: Negative equity and no revenue are expected. The Commission understands this. But you need to show a credible funding plan. A recent investment round, a signed term sheet, or a letter from your board confirming committed capital can satisfy the requirement. A pitch deck with hockey-stick projections cannot.

Cash flow: the gap nobody talks about

EU grants are reimbursement-based. You spend the money first, then claim it back. This creates a cash flow gap that surprises many applicants, especially those who have never managed a multi-year funded project before.

Typical payment schedule (Horizon Europe):

Payment	Timing	Amount
Pre-financing	After grant signature	40-50% of total grant
Interim payment(s)	After each reporting period (12-18 months)	Based on costs reported, minus pre-financing
Final payment	After project completion and review	Remaining balance

The pre-financing helps, but it does not cover the full grant amount upfront. During the project, you will have periods where you have spent more than you have received. For a 3 million euro Horizon Europe project with 70% funding, you might need to carry 500,000 to 800,000 euros in unreimbursed costs at peak.

For the Innovation Fund, the gap is larger. Pre-financing is 40% of the grant, paid in installments linked to project milestones (financial close, construction start). If your project has a five-year implementation period and a 50 million euro budget, you need serious working capital.

In your proposal, include:

A co-financing table showing source, amount, and evidence for each partner
A brief cash flow narrative showing you can handle the reimbursement cycle
Letters of commitment from investors or lenders if your co-financing depends on external funding
For startups: evidence of recent fundraising or committed capital

The evaluator reading your budget section should come away confident that the project will not collapse halfway through because someone ran out of money. We have seen it happen. It is not pleasant for anyone involved.

Step 9: Write the impact section

This is where most proposals lose points. Teams describe their technology in impressive detail but then write vague, generic impact statements. Evaluators see through this every time.

Quantify everything you can. "The project will reduce emissions" is weak. "The project will demonstrate a process that reduces CO2 emissions by 2.4 Mt per year when deployed at ten industrial sites, equivalent to removing 520,000 cars from European roads" gives the evaluator something to work with.

Distinguish outputs, outcomes, and impacts:

Outputs: What the project directly produces (a prototype, a dataset, a publication)
Outcomes: What changes as a result (adoption by industry, new standards, policy change)
Impacts: The wider effect (reduced emissions, economic growth, improved health)

Your project directly controls outputs. Outcomes and impacts depend on external factors you cannot guarantee. The best proposals describe a credible pathway from outputs to impacts, and they are honest about which parts they control and which parts they do not.

The exploitation plan is not optional. This catches many first-time applicants off guard. Every partner should describe how they will use the results after the project ends. A company might commercialise a product. A university might continue the research. A public body might implement a policy. "Results will be disseminated through publications and conferences" is not an exploitation plan. It is a sentence that costs you points.

Key Exploitation Results (KERs): Identify your three to five most important results and describe their path to market or deployment. Who is the target user? What is the business model? What is the timeline? What barriers remain? This is where the evaluator decides whether your project will actually change anything after the grant money runs out.

Step 10: Review and quality check

Before submission, your proposal needs at least two rounds of review: one for content and one for consistency. Skipping this step is how good proposals become mediocre ones.

Content review: Have someone who was not involved in writing read the proposal. Can they understand the project from the proposal alone? Can they identify what is novel? Can they see how the budget connects to the work plan? If they struggle, the evaluator will have the same experience.

Consistency check: Cross-reference every section against every other section. These are the inconsistencies we find most often:

The number of person-months in the budget does not match the effort described in the work plan
Partner roles described in the consortium section do not match who leads which work package
The methodology describes activities that do not appear in any work package
Deliverable dates in the work plan do not match the milestones
The total budget in the summary does not match the detailed budget table

These might seem like small things. They are not. An evaluator who finds one inconsistency starts looking for more.

The evaluator's test: Open the call document, read each evaluation criterion, and check whether your proposal explicitly addresses it. Not vaguely. Explicitly. If a criterion asks about "management structure and procedures" and your proposal does not have a management section, you will lose those points. It does not matter how brilliant the rest of your proposal is.

Formatting and compliance:

Check the page limit. Count pages in PDF, not in Word. They are rarely the same.
Verify all mandatory sections are present
Ensure figures and tables are legible when printed
Check that all references are complete
Verify ethical issues are addressed (data protection, animal testing, dual use)
Confirm all partner information is correct (legal names, PIC numbers)

Step 11: Submit

The submission itself is mechanical, but it causes more last-minute disasters than it should.

Use the Funding & Tenders Portal. Almost all EU grants are submitted through the European Commission's online portal. You need an EU Login account and your organisation must be registered with a PIC (Participant Identification Code). Set both up well in advance.

Submit at least 48 hours early. The portal experiences heavy load near deadlines. Server slowdowns, upload failures, and timeout errors are common in the final hours. Submitting early costs you nothing. Submitting one minute late is a permanent rejection. There is no appeals process for missed deadlines.

You can resubmit. The portal allows unlimited resubmissions before the deadline. Each new upload replaces the previous one. This means you can submit an early version for safety, then upload the final version when it is ready. Many experienced applicants submit a working draft three to five days before the deadline. It is cheap insurance.

Check the confirmation. After submission, the portal generates a confirmation with a timestamp. Download your submitted proposal and compare it to your local version. We have seen cases where an earlier draft was accidentally uploaded instead of the final one. That is a mistake you discover too late.

Common submission failures:

PDF exceeds the file size limit
Mandatory fields left blank in the online form
Budget figures in the online form do not match the budget in the PDF
Partner information in the portal does not match the proposal
Submission after the deadline (even by one minute, even if the portal was slow)

Step 12: What happens after submission

You have submitted. Now you wait. Understanding the evaluation process helps manage expectations and prepare for what comes next.

Evaluation timeline (typical):

Phase	Horizon Europe	EIC Accelerator	Innovation Fund
Individual expert evaluation	2-4 weeks	4-6 weeks	6-8 weeks
Panel consensus meeting	1-2 weeks	N/A (Step 1)	2-4 weeks
Interview (if applicable)	Rare	Step 2 (if passed)	No
Results notification	5-6 months	3-4 months (Step 1)	8-10 months
Grant agreement preparation	2-4 months	2-3 months	3-6 months

Evaluation Summary Report (ESR). After the evaluation, you receive a report with your scores and evaluator comments. This document is valuable regardless of the outcome. If you were not funded, the ESR tells you exactly what to improve. If you were funded, it may contain conditions you need to address during grant agreement preparation.

Grant Agreement Preparation (GAP). If your proposal is selected, you enter negotiations with the European Commission. This is not a rubber stamp. You may need to revise your work plan, adjust the budget, address ethical concerns, or provide additional documentation. The grant agreement is a legal contract, and the Commission treats it as one.

If you are not funded: Read the ESR carefully. Most programmes allow resubmission in future calls, and a revised proposal that specifically addresses the evaluators' concerns has a significantly higher chance of success. Many funded projects were rejected on their first submission. A rejection is feedback, not a verdict.

The timeline you should plan for

From the moment you decide to apply to the moment you receive your first payment, expect twelve to eighteen months:

Phase	Duration
Programme selection and partner search	1-3 months
Proposal writing	2-4 months
Submission to evaluation result	3-6 months
Grant agreement preparation	2-4 months
First payment after signature	1-2 months

If you need funding in the next six months, EU grants are not the answer. If you can plan twelve to eighteen months ahead, they can be transformative.

Where to go from here

If you are applying for the first time, read the call document before anything else. If it makes sense for your project, our guides on how EU grants work and five things to prepare before applying cover the fundamentals.

If you have applied before and were not funded, your Evaluation Summary Report is the most valuable document you have. It tells you exactly what the evaluators thought. Start there.

Writing an EU grant proposal is a significant investment of time and resources. We help companies at every stage, from programme selection and eligibility assessment to full proposal development and submission. Book a call to discuss your project.