The Balearic investment reserve, the RIB, lets a company that earns profit through an establishment in Mallorca, Menorca, Ibiza or Formentera reduce its Spanish corporate tax base by what it sets aside and reinvests in the islands. The reduction reaches 90 per cent of the undistributed profit of the Balearic establishment under the text in force for tax periods beginning between 1 January 2023 and 31 December 2028. What it will fund is a closed list, and that list is the whole subject of this piece, because every mandate on the RIB comes down to the same exercise: take the capital expenditure schedule for the next three years and sort it, line by line, into what materialises the reserve and what does not.
The list is written in the seventieth additional provision of Law 31/2022 and developed in Royal Decree 710/2024. It has three routes, a set of rules common to all of them, and a handful of traps that a reader from outside Spain would not guess.
The clock that governs everything
Amounts allocated to the reserve must be invested within three years from the accrual date of the tax for the year in which the reserve was funded, under point 4 of section Four of the additional provision in Law 31/2022. A company with a December year end that funds the reserve out of 2026 profit has until 31 December 2029 to invest. Article 18 of the Regulation confirms that the three years run even if they end after 31 December 2028, provided the reserve was funded in a tax period that began inside the window.
The regime also runs backwards. Point 10 allows anticipated investments: an asset bought today can materialise a reserve funded from the profit of the same year or any of the three following years, as long as the investment and how it was funded are reported with the return for that year.
Materialisation happens when the asset enters into operation. Not on signature, not on payment, not on delivery. Point 7 says so expressly, and the Regulation repeats it for finance leases. A refurbishment paid in 2028 and opened in 2029 materialises in 2029.
Route A: fixed assets, environment and R&D
The first route is the acquisition of tangible or intangible fixed assets, defined by reference to the Spanish General Accounting Plan. New or used both qualify. The first condition on used assets, under article 5 of Royal Decree 710/2024, is that the asset has not already served in full to materialise another taxpayer’s reserve.
Three carve-outs sit inside this route. Land, built on or not, must be assigned to one of five permitted uses, a subject that has its own treatment in the rules on land and real estate under the RIB. Intangibles cannot be brands or unpatented know-how, and under point 6 the intangible component cannot exceed 50 per cent of the total value of the investment project unless the taxpayer is a small entity under article 101 of the Corporate Income Tax Act, the threshold being net turnover below 10 million euros in the preceding tax period. Transport assets qualify, with specific conditions for passenger vessels and road passenger vehicles.
The environmental sub-route is unusual in one respect: the assets do not have to be assigned to the business. Article 8 of the Regulation lists installations against air, noise and water pollution from industrial plants, treatment of the company’s own industrial waste, optimisation of water use, and installations for self-consumption of renewable energy converted to electricity. All require a certificate of validation from the Balearic environmental authority, issued before the filing deadline of the last period in which materialisation is still possible. Without it, point 14 applies: the reduction is reversed with late payment interest.
Research, development and innovation expenses under article 35 of the Corporate Income Tax Act complete the route. Article 9 of the Regulation says they count as they accrue, with no requirement to capitalise them, including projects contracted with universities and technology centres in the islands.
Route B: jobs tied to the investment
The second route is job creation directly related to a Route A investment, occurring within six months of that investment entering into operation. The measure is the increase in the taxpayer’s average headcount over that period compared with the average of the 12 months before the investment started operating, on a full-time equivalent basis. The increase must be held for five years, or three years for small entities under article 101.
Two provisions of article 11 of the Regulation work in the investor’s favour. The count is taken across all the taxpayer’s Balearic establishments, and the new positions do not have to be filled by the newly hired people.
Under point 6 and article 19 of the Regulation, materialisation through jobs is recognised only during the first two years after the increase, each year for the average cost of gross salaries plus mandatory social security corresponding to the increase. Take a 2,000,000 euro installation that enters into operation and, within six months, brings four additional full-time positions at an average cost of 40,000 euros each. Route B materialises 160,000 euros in each of the two years, 320,000 euros in total. It is a complement to the asset route, not a substitute for it.
Route C: subscribing shares in a Balearic company
The third route is the subscription of shares issued on the incorporation or capital increase of a company active in the archipelago, provided that company then makes Route A or B investments itself within three years from the subscriber’s accrual date. The investee’s qualifying investments must reach at least the amount paid up by the subscriber; if they fall short, article 14 of the Regulation reduces the subscriber’s benefit proportionally. The shares must be held for five uninterrupted years and the investee’s investments cannot attract any other tax benefit.
The route carries a paperwork chain with real deadlines: the subscriber notifies the issuer of the amount subscribed and the materialisation deadline within 20 days of funding the reserve, and the issuer notifies the subscriber within 20 days of each asset entering into operation. Failure to communicate is an infringement in its own right.
One point matters for foreign capital. Route C belongs to a taxpayer that already has a Balearic establishment and a reserve to materialise. A Dutch or Luxembourg holding company with no Spanish establishment has no reserve and cannot use it. The structure that works is a Balearic operating company under the holding, which earns the profit, funds the reserve and invests directly or through a subsidiary.
The rules common to every route
Point 5 requires the assets to be located or received in the archipelago, used there, and assigned to and necessary for the taxpayer’s economic activity, with the environmental exception already noted.
Valuation under point 6 is acquisition price or production cost, excluding interest and indirect state taxes, and never above market value. Any part funded with subsidies does not count. Finance leasing under article 106 of the Corporate Income Tax Act is allowed, but the reduction is conditional on exercising the purchase option; if the option lapses, the benefit is reversed with interest.
Holding periods are five years in operation without transfer, lease or assignment to third parties, and ten years for land. An asset with a shorter useful life does not break the rule if replaced within six months of its retirement by a qualifying asset of at least the same book value. Companies whose business is leasing fixed assets may apply the reserve only where there is no direct or indirect relationship with the lessee under article 18.2 of the Corporate Income Tax Act and the lease is not a finance lease.
What the reduction is worth, and where it stops
The reduction is capped at 90 per cent of the undistributed profit from Balearic establishments and cannot create a negative base. Dividends, interest income and gains on assets that themselves materialised the reserve do not count. A Balearic subsidiary with 1,000,000 euros of undistributed operating profit can fund a reserve of up to 900,000 euros. At the 25 per cent general rate in article 29 of the Corporate Income Tax Act, the tax saved is 225,000 euros.
That figure is also the state aid. Article 30.3 of the Regulation computes the aid as the tax rate multiplied by the reduction applied, and article 29 subjects it to the de minimis ceiling of Regulation (EU) 2023/2831: 300,000 euros per single undertaking over any period of three years, related companies counted together. At 25 per cent, that is roughly 1,200,000 euros of cumulative reduction over three years, less any other de minimis aid the group has received. A profitable group hits it quickly. The ceiling is why the Balearic regime is not comparable with the ZEC or the Canary Islands RIC, which rest on a different legal basis.
Two further limits apply. Under point 11 the reserve cannot be combined, for the same assets and expenses, with the Chapter IV deductions of the Corporate Income Tax Act, including the R&D credit. And used assets or land that previously benefited from the RIB or from those deductions cannot qualify again.
The errors that come up in practice
The first is treating the reserve as dividend-neutral. The reduction applies to undistributed profit, the reserve must appear separately on the balance sheet and remain unavailable while the assets must stay in the company, and any withdrawal of equity in the year of the reduction or of the allocation resolution reduces the eligible amount. Under a holding in the Netherlands, the participation exemption on dividends from Palma is unaffected, but the cash that stays in the islands does not reach Amsterdam for five or ten years, and that trade-off belongs in the group’s dividend policy before the year end.
The second is the memorandum. While the holding period runs, the notes to the annual accounts must disclose the allocations, the amounts pending materialisation, the investments and their dates, subsidies requested or granted, and all other de minimis aid received in the two preceding years. Omitting it is a serious infringement with a proportional penalty. The third is the refurbishment booked as repairs and maintenance: expensed works materialise nothing, however large, as explained in the treatment of hotel refurbishment under the RIB.
Choosing the route is choosing the exit
The routes are not interchangeable. Machinery and installations lock five years. Land locks ten. Jobs lock five years of headcount and value only two years of cost. Shares in a Balearic company lock five years and add a counterparty whose compliance becomes yours. Choosing between refurbishing, hiring, researching and capitalising is therefore a decision with a ten-year tail, taken when the business plan is written and not when the accounts are closed. Our Iberia, Balearic and Special Zones desk runs the classification with our tax partner in Palma before any contract is signed, so that the tax calendar and the investment calendar are the same document.