Pillar · The funding
The Tax Lease for innovation
Where this instrument lives on the map of capital: phased financing (the F3–F7 window).
A double return: the certain tax benefit and a stake in the company that takes the technology to market.
18 min read · or go straight to the simulator
The Tax Lease connects those who have a tax debt with those who do research. Your capital finances an R&D project, and you receive a certain tax benefit plus a stake in the startup that commercialises its technology. With Volcano, without the intermediary who in other models keeps a large part of the value. This engineering of our own on the instrument is the Volcano Method of technological Tax Lease.
It is not a requirement: it is the preferred instrument. A project can be funded with private capital alone, or with public funds, or with all three at once. But when the Tax Lease fits, the advantage is hard to pass up, and on some projects the capital of the tax investors is enough on its own to carry them forward. This page is the longest on the site precisely for that reason.
In ten lines
- Spain wants more innovation on its territory and uses taxes to get it: that is why it lets a taxpayer turn part of their tax liability into an investment in R&D and technological innovation. Why it exists.
- The mismatch it corrects: whoever does research rarely has a liability to offset, and whoever has a liability rarely does research. The problem.
- The vehicle is an AIE, a transparent company created to fund one specific project: what it spends and what it deducts is attributed to its partners. The mechanism.
- You contribute capital to that AIE and receive two things: the negative tax base of the expenditure and the R&D and technological innovation deduction. The double return.
- The sum of the two, for every euro of certified expenditure attributed to you, runs from 31% to 126% depending on where you are taxed and what kind of expenditure it is. It is set by law.
- It can exceed 100% of what you put in when private capital comes into the project alongside yours: the percentage does not change, the base grows. How it is widened.
- The deduction is capped at a percentage of your liability, 90% in the Canary Islands and 50% on the mainland, and what is left over is carried forward for up to 18 years.
- What protects the operation is not an opinion but three documents: a binding reasoned report, an ex ante certificate and an ex post certificate. The shields.
- Volcano does not sell stakes in someone else's AIE: it builds it, funds it with its own capital too and carries out the research. The difference.
- A minimum ticket of €10,000, Spanish tax residence is required, and the numbers for your case are given by the simulator without sending anything to any server.
What follows is the same thing, argued. If you came for one specific fact, the links above take you straight there.
The thesis
An end for the operators, a means for Volcano.
For the classic Tax Lease operators the instrument is an end: they act as intermediaries between other people's projects and tax investors, and their remuneration is a percentage of the project's cost. For Volcano it is a means: we apply it only to our own projects, we manage the whole process at cost with minimal margins, and we shift our margin to the stake in the startup: we gain later, and only if the startup gains. The full comparison, category by category, is in the Tax Lease as a means.
The context
Why the instrument exists
Spain invests around 1.4% of GDP in research, below the European average (≈2.2%) and far from the 3% target. To close that gap, the legislator chose one of the most aggressive tax strategies in Europe: mobilising private capital with very generous incentives. Article 35 of the Corporate Income Tax Act provides deductions of up to 42% for research and development (in its incremental band) and of 12% for technological innovation. In the Canary Islands, the Economic and Fiscal Regime raises the former to 75.6% (art. 94.1.a Act 20/1991) and sets a specific rate of 45% for the latter (13th additional provision, Act 19/1994). These are percentages without parallel in Europe. It is not a gift: it is deferred public investment. The State gives up part of today's revenue and expects to recover it tomorrow, through qualified employment and the taxes of innovative companies when they reach the market.
It is worth saying precisely: the Tax Lease is not public funding. It is funding between private parties, which generates a tax advantage for whoever invests. It is the State's way of incentivising innovation without itself managing the disbursement of funds: the capital is put in by private parties, the direction is set by the law, and the control is exercised by independent certifiers.
The mismatch
The problem it solves
Deductions are applied against the tax liability. An innovative startup (precisely the party that generates the innovation) often does not have enough liability because it is making losses, and its credits stay frozen for years. At the opposite end there are companies and individuals with a large liability to pay but no projects of their own. The market thus presents a mismatch between whoever generates the tax credits and whoever can absorb them: the Tax Lease closes it.
The vehicle
The mechanism: AIE and tax transparency
An Economic Interest Grouping is incorporated, a tax-transparent vehicle. The investors contribute capital and become partners; the AIE funds the research project; the costs generate deductions and negative tax bases which, through transparency, are attributed directly to the investing partners; at the end of the cycle, the startup acquires the results of the research. It is not a transfer of tax credits (which the rules would not permit) but the birth of the credit in the investor's own hands. The architecture is confirmed by numerous binding rulings of the Directorate-General for Taxation and shielded, for each operation, by the Binding Reasoned Report.
Before the first flow there is an act the diagram does not number, because it moves no money: the incorporation. The Canary AIE is created, with a corporate purpose limited to a single project and with the Venture Builder as administrator serving free of charge, and in parallel the startup that will receive the result. Only afterwards does the AIE commission and pay for the diagnostic phase (analysis of the problem, state of the art, conceptual design and feasibility study), and it is precisely because it commissions it, once it exists, that this work enters the base of the deduction. What was known beforehand is invoiced to nobody: it lives in the startup's starting value.
Eight acts, five moments. Before the diagram, the full sequence as the Operating Guide sets it out: three acts at the close, two during the project, one each tax year, one at the close of the cycle and one from then on. The numbers are the same you will see in the diagram.
The full sequence, act by act
- Tax capital · at the close
The Tax Investors contribute the capital and become partners in the AIE; the deduction and the negative bases will be attributed to them by their statutory share, not by their share of the capital.
- Convertible note · at the close
The Private Investor comes into the Startup through a convertible loan, with the stake fixed on day one. They do not take part in the AIE: their return is tied to the value of the intellectual property.
- Subordinated loan · at the close
The Startup lends the AIE the rest of the budget, with a covenant not to call it: the AIE will never have to repay it in cash, because at the close of the cycle it is capitalised.
- Execution in cash · during execution
The AIE commissions and pays for the project from third-party suppliers and from the Venture Builder's lines, all in cash and at market rates: no supplier has a claim against the AIE. The duration depends on each project and may span several years of expenditure (two, in the Guide's reference case).
- Certification · ongoing
The ex ante certificate arrives before the financial close: when the investor contributes, the project's classification is already certified by a third party. A body accredited by ENAC certifies ex ante and ex post, and the MICIU issues the Binding Reasoned Report, which binds the AEAT on the project's classification (art. 35.4 LIS). The ex post certification is annual: one certificate and one report for each year of expenditure, for as long as execution lasts.
- Attribution · each tax year
The deduction is attributed to the partners together with the negative tax bases: at 45% for technological innovation (13th additional provision, Ley 19/1994) and up to 75.6% for the incremental band of R&D (art. 94.1.a Ley 20/1991). Each investor applies it in their own return, effective from the following tax period. Out of prudence, all commercial sizing uses 45%: the improvement if the certificate raises it to I+D is the investor's upside.
- Close of the cycle · T+1
The Startup buys back the partners' shares at €1, capitalises the subordinated loan (a neutral operation, art. 17.2 LIS) and acquires the intellectual property by an expert valuation anchored to cost.
- Commercialisation · from T+1
Effectively registered in the ROEZEC, the Startup takes the technology to market from the Canary Islands, with corporate income tax at 4%.
The full mechanism, actor by actor
It is not a transfer of tax credits: the credit arises directly in the investor's own hands through tax transparency. The flows are one-directional, from the investor towards the project: there is no claim of the Venture Builder against the AIE nor any return towards the structurer other than its invoices at market rates. The share of the partner with no Canary link is governed under a two-scenario approach, with prudent sizing.
The nine operating steps, and who acts at each one
The result
The double return
The first return is the tax credit. It is certain, it is quantified in advance and it does not depend on the project's commercial success: the qualification is shielded before the Administration by the binding reasoned report. The credit is calculated on the project's qualified expense, not on your contribution. How much it is worth depends on two things: the investor's tax profile and the structure of the project. In the most favourable profile it reaches ≈126% of the contribution when the tax investors cover the whole budget, and rises to ≈200% in the usual cases with private capital. In other profiles it is lower, down to the mainland minimum of ≈12% for technological innovation. You can explore your figure in the tax simulation (indicative). The second return is the stake in the startup that will commercialise the technology, negotiated from the start. It arises from a precise rule: the part of your contribution that the tax credit does not return to you (because your tax capacity does not reach, or because you choose to cede credit to other partners of the AIE) converts into a class A stake in the startup, with the same formula and at the same rank as the convertible note of the private investor. If the credit returns one hundred percent to you, the stake is zero, unless you also subscribe the note. In the traditional Tax Lease the investor leaves with no asset at all. Here they keep a position in the company, bought with resources the tax authority has partly returned, and amplified by the ZEC regime, which reduces Corporate Income Tax to 4%.
The double return of the Tax Lease
The difference
Why Volcano is different
In the traditional Tax Lease, between the investor and the innovator there is a structuring company. It keeps between 15% and 30% of the value of the operation in fees: of every 100,000 €, between 15,000 and 30,000 € do not finance research, they finance the intermediary. And its incentives are not the investor's: it is paid per closed operation, so it does not care about the project's qualification; it is not a technologist, so it does not judge scientific merit or execution capacity; and if the project is executed badly, the one who loses is the investor. Volcano brings the four roles together in a single entity: it conceives the project, backs it technically, manages the vehicle and builds the company. The result: no intermediate margin, more money for research, someone who answers for execution, and a real stake in the future industrial value.
The scrutiny
The distortions of the traditional model
Besides the cost of intermediation, the traditional model has a residual-value problem: the investor comes in only for the tax benefit and leaves with no asset at all, with no rights over the IP and no interest in long-term success. These distortions, together with the most aggressive operations, have attracted growing scrutiny from the tax inspectorate. That is why the operator's reputation now weighs as much as the numbers.
The shielding
The shields: ex ante certificate, ex post certificate and reasoned report
Two independent certifications protect the operation, one before the work starts and one after it ends. It is worth understanding the full sequence, because on it depend when your capital can come in and what is really shielded.
The certification chain, step by step
- Ex ante certificate
Before the work starts, a certifying body accredited by ENAC classifies each work package of the project (research and development, technological innovation, or excluded), following the five requirements of the Frascati Manual and the UNE 166001 standard.
- Binding Reasoned Report, ex ante
On the basis of that certificate, the Ministry issues a report binding on the Tax Agency as to the project's classification. It can be applied for up until the filing of the return in which the deduction is applied.
- The work is carried out
The certificate and the report are not legal requirements for deductibility: the deduction arises from the expenditure the AIE actually incurs and which qualifies. In practice, this means your capital can come in before the certificate is issued, and the expenditure the AIE accumulates from the commission is already deductible if it qualifies; the certificate is the privileged evidence that shields that classification against a future check, not the condition for it to exist.
- Certificate and report, ex post
At the close of each year, a new certificate and a new reasoned report confirm, now on the work carried out, that the project still qualifies.
What this chain does not shield is the quantification: how much the project has really cost remains checkable by the Inspectorate. Hence the importance of analytical accounting by work package, third-party invoices paid in cash and the annual audit: it is the same rigour that protects both the investor and the instrument itself.
The binding force of the reasoned report for the classification is not merely a design feature of the instrument: it has been confirmed by the Supreme Court, in its judgments of 8 and 9 October 2024.
Who it speaks to
Horizon and who it is aimed at
If the tax liability is not enough to absorb the credit in the tax year, the excess is carried forward to the following tax years, up to eighteen (art. 39.1 LIS). The instrument speaks to three profiles: investors with a significant tax burden, professionals who assist clients with high contributory capacity, and anyone who wants to present the operation to third parties.
Your door: a tax burden · a network · capital to invest.
Notice. The content of this page is informational and does not constitute tax, legal or investment advice. The figures and percentages are indicative: the rules change and this page may not reflect the latest legislative provisions. The values applicable to each specific case are reviewed and discussed in the video call, after qualification. The precise calculation on your profile is made after qualification.
Frequently asked questions
Frequently asked questions
Why should I do it?
Because you are going to pay your tax liability anyway. The difference is what it turns into: paid to the State, it does not come back. Directed to a certified R&D and technological innovation project, it additionally generates a certain tax credit and a stake in the startup that commercialises it: the same obligation, turned into something that can give you back more than you contributed, instead of giving you back nothing.
When can I invest? Are there maximum limits?
There is no legal cap on what you can contribute; the real limit is how much credit you can apply each year, according to your tax liability (90% in the Canary Islands, with the remainder carried forward for up to the following 18 tax years). The entry window depends on each project's calendar, which normally closes before year end so that the allocation takes effect already in the following tax year; the exact calendar and the minimum amount are confirmed at qualification.
What is the minimum contribution?
The entry ticket starts at €10,000. Each project has a minimum annual cost of around €350,000, shared among the tax investors who group together in the AIE: how many partners gather in each project determines the space available.
When do I see the benefit in my tax return?
Indicatively: the BIN are attributed to you in the same year the AIE starts paying its suppliers; the deduction is applied in the following year's return. The exact calendar for your case is reviewed in the video call.
Does Volcano invoice me for anything?
Never directly. The invoices go to the AIE, and the costs of the operations are carried out at market prices, supervised by the tax authorities: your only cash outflow is the contribution.
Why do this instead of the Canary Islands Investment Reserve (RIC)?
They are different mechanisms, and not necessarily mutually exclusive. The RIC requires you to have already generated profit in the Canary Islands, and that money stays locked up for years, reinvested inside your own company (assets, employment, or other approved investments). The Tax Lease does not require prior profit: it is new capital you contribute to an external vehicle, and the tax return arrives in the following year or sooner, not years later. They meet different needs; if you already provide for the RIC, your adviser can assess in the video call whether it is worth combining the two.
Does my contribution also help the Canary economy?
Yes. Your capital funds real research, carried out in the Canary Islands by Canary teams, and helps startups be born that generate skilled employment in the islands. It is not a side effect: it is the reason for the REF, the framework that makes this instrument possible. Every project strengthens the archipelago's innovation fabric, beyond each investor's individual return.
Is the Tax Lease a transfer of tax credits?
No: the credit arises directly in the investor's own hands through tax transparency, without passing through other parties. Direct transfer of credits is not permitted by the rules.
What happens if the project is not commercially successful?
The first return (the tax one) is structurally independent of the project's success; only the stake in the startup depends on the outcome.
What protects the operation before the Tax Agency?
Two independent certifications: the ENAC certification and the Ministry's Binding Reasoned Report, binding on the tax administration as to the project's classification and the deductible base (more detail in «The shields», below).
And if my annual liability does not absorb the whole credit?
The excess is carried forward to the following 18 tax years (art. 39.1 LIS).
Can I monetise the credit if my tax liability does not absorb it even in 18 tax years?
Companies have a subsidiary route: the monetisation of art. 39.2 LIS, a cash payment of 80% of the credit (with a 20% discount), one year after the close of the generating period, with an annual cap of €1,000,000 for technological innovation and conditions on maintaining headcount and reinvesting within 24 months.
What happens if I recover more than 100% of what I contributed?
The excess over your capital is taxed as financial income (art. 43.4 LIS): at 25% for a company, or in the savings base on transfer for an individual. All the figures we publish are calculated net of this effect.
Are there fees? How much does it cost to take part?
The structuring fees, of the order of 8% to 12% of the contribution, are invoiced separately by Volcano and do not enter the AIE: far below the 15% to 30% a traditional intermediary retains (see «Why Volcano is different»).
What if I have no territorial link with the Canary Islands?
The REF rates and limits are applied to you as well, under the prudent criterion this site and all the commercial material use; the treatment of the purely mainland partner is today a point of doctrinal discussion, with differing administrative and judicial positions. The simulator and the video call always show the conservative scenario too.
«In this world nothing is certain except death and taxes.»
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Put in your numbers.
John F. Kennedy, 1962