A rejected grant application rarely has a single cause. The real reasons go far beyond formal errors—deadlines, documentation, numerical consistency, and so on—and delve into the territory of expenditure eligibility, strategic positioning against evaluator criteria, and, above all, structural timing.
If you understand these factors before applying, you radically change your odds. If you discover them only after receiving a rejection letter, you have simply paid a very expensive tuition fee.
In this article, you will find out why ENISA does not work the same way as a non-repayable grant, the risk of expenditure eligibility that almost no one explains (and which can lead to a clawback even after you have received the funds), and why some rejections have nothing to do with you at all.
For a complete breakdown of the most frequent errors by instrument, check out our guides on ENISA for startups and Public funding for startups in Spain.
Why are grants that seem solid rejected?
The short answer: because the evaluation system is a mechanism with very tight tolerances, and any part that is out of specification stops the entire chain. But there is a longer, more concerning answer: the idea that the system "rewards the quality of the application, not the project itself." This is a half-truth that can cause you serious harm.
In competitive calls with real technical scoring—such as NEOTEC, ENISA participatory loans, CDTI programs, etc.—the project's viability, the strength of the team, and financial consistency are not just decorative accessories: they are the core of the scoring. An impeccable file wrapping a weak project might pass the formal cut. It rarely passes the scoring cut when the call has high demand and a limited budget. Generalizing from the simplest case—the bureaucratic error—and turning it into a universal law is, at the very least, a simplification that can lead you in the wrong direction.
And before we continue: ENISA is not a grant. It is a participatory loan. Putting it in the same category as NEOTEC confuses founders about what they are applying for, the criteria by which they are evaluated, and, consequently, why they might end up with a rejected grant or a rejected loan, which are not the same thing and are not corrected in the same way.
What are the real reasons behind a denied grant? (a brief summary)
Three causes appear more frequently than any other: timing (starting to prepare documentation when the call is already open, rather than 3-4 months in advance), generic technical reports (failing to speak the specific language of the evaluator for each call, such as TRL and technical capacity for CDTI, or equity ratios for ENISA), and misunderstood expenditure eligibility, which we expand on in the next section because almost no resources explain it well.
Expenditure eligibility: the silence that costs the most
There is a concept that is conspicuously absent from almost all informative literature on grants: expenditure eligibility. Not every euro spent on a project is eligible for funding. Granting bodies establish precise restrictions: internal personnel costs with specific allocation criteria, excluded financial expenses, non-eligible recoverable VAT, and expenses incurred before the official project start date.
Ignoring this doesn't just lead to a denied grant during the application phase. It can lead to a clawback with interest after you have already received the funds. The General Subsidies Act 38/2003 precisely regulates the grounds for repayment, limitation periods, and justification obligations. An article on denials that fails to mention this regulatory framework is only scratching the surface of a much deeper problem.
When the denial isn't your fault
Here is the point that is most frustrating to admit: many denied grants are not due to applicant errors. They are due to budgetary policy decisions: budget exhausted before the deadline, a change in the granting body's priorities, or competition from applications that simply scored higher in that specific cycle.
Treating all denials as the result of avoidable personal errors is a bias that can lead you to repeat the same failed process without realizing the problem is structural. Sometimes the project is good, the application is correct, and yet there is no funding available for you in that cycle. The answer isn't to fix the application; it's to evaluate whether it makes sense to wait for the next call, look for an alternative instrument, or recalibrate your entire funding strategy.
How do you build a strategy to avoid ending up with a denied grant?
The answer isn't "presenting the project better." It's building a funding plan that works as a system, not a gamble.
At Intelectium, we work with a portfolio approach to instruments: never just one line, but always several paths activated in parallel and in sequence. An illustrative example of what that plan can look like:
• Year 1: R&D&i tax deductions—recover between 25% and 42% of development costs directly from your corporate tax liability—plus an ENISA participatory loan if you meet the equity requirements.
• Year 2: CDTI PID, featuring soft loan tranches plus a potential non-repayable portion, complemented by regional aid if there is an active call in your region.
• Year 3: Horizon Europe, provided you already have international traction and an established European consortium. Not before.
Notice what is missing from that plan: the exclusive pursuit of non-repayable grants. 100% non-repayable subsidies have low success rates. ENISA participatory loans or general CDTI lines have significantly higher approval rates, with financial terms that no private bank can match. Ignoring repayable instruments because "you have to pay the money back" is a way of optimizing for the wrong instrument.
And one more requirement: for any of these instruments to work, the project must demonstrate alignment with the strategic frameworks that define public investment priorities. Sectoral PERTEs, the Digital Spain Agenda, the European Green Deal: if your project fits into these vectors and you articulate it with evidence, you provide an argument that an evaluator can use to score you higher. If you don't mention it, you leave that argument on the table.
Frequently Asked Questions
Can I appeal a denied grant?
Yes, most calls allow for an administrative appeal to the higher authority or a judicial review. The standard deadline is one month from the notification of the resolution. The key is to identify whether the denial is due to a procedural error by the agency—which is contestable—or a discretionary assessment within legal bounds, where an appeal is much less likely to succeed.
How far in advance should I plan to avoid having a grant denied due to timing?
Public funding operates on 18 to 24-month cycles from the strategic decision to the cash being available. If your current runway is less than 12 months, public funding will not solve your immediate problem: you need equity or private debt first.
What is expenditure eligibility and why does it cause denials?
It determines which costs the grant can cover according to the regulatory guidelines and Law 38/2003. Expenses incurred before the official project start date, recoverable VAT, financial expenses, or personnel allocations that do not meet the call's criteria can lead to both an initial denial and a subsequent clawback with interest, even if you have already received the funds.
Why doesn't ENISA work the same way as NEOTEC or a regional grant?
Because ENISA is a participatory loan, not a grant. Its evaluation logic is financial—model sustainability and repayment capacity—whereas grants assess impact, innovation, and the fulfillment of public policy objectives. Treating them as equivalent leads to preparing applications that are poorly aligned with each instrument.
Does a denied grant close the door to future applications?
In most cases, no. A denial in a specific call for applications does not disqualify you from applying to the next edition or other calls from the same organization, unless it stems from an administrative penalty or an unresolved repayment. What does close doors is accumulating files with documentary inconsistencies or failures to justify expenses.
If your project has been denied a grant, or if you want to structure a public funding plan that combines various instruments in the right order, at Intelectium we work on a 100% success-fee basis: we only get paid if we secure the funding.
