Does Spain's youth rent bonus (Bono Alquiler Joven) push rents up?

Spain's Bono Alquiler Joven pays young tenants a fixed sum towards the rent every month, and from the day it was announced in 2022 one worry has followed it: that landlords would simply add the €250 to the price. Four years on, with a bigger successor written into the new State Housing Plan, the question deserves a proper answer, because it decides how Spain should design every housing benefit it pays.

What the scheme pays

Royal Decree 42/2022 created the Bono Alquiler Joven in January 2022. It paid €250 a month for two years, €6,000 in all, to tenants up to 35 whose household income stayed under three times the IPREM, Spain's public income benchmark. The rent could be at most €600 for a flat or €300 for a room, and in some cases the ceiling could rise to €900 to reach the tightest markets. The preamble to the new housing plan puts its total budget at €800 million.

Its reach was always small. According to elDiario.es, the earlier edition got to about 65,000 young people, one in three of those who applied, and the Consejo de la Juventud de España worked out that this was 0.6% of under-35s. Money ran out under competitive calls, regions paid at very different speeds, and anyone paying more than €300 for a room was left out.

The State Housing Plan 2026–2030, approved by Royal Decree 326/2026 on 22 April, carries the idea forward as a youth rental aid of up to €300 a month for a flat and €200 for a room, capped at 60% of the rent. It covers people up to 35 with incomes up to five times the IPREM, for rents up to €1,000 for a flat and €600 for a room, or €500 and €250 in towns of 10,000 people or fewer. It lasts two years and the region can extend it for two more. Two details matter for rents. Regions must keep their calls open continuously, and they can raise the rent ceilings, with the ministry's agreement, when local studies of supply justify it.

What the evidence says about rents

The best-known study comes from France. Gabrielle Fack, in Labour Economics in 2006, used a 1990s reform that extended housing benefits as a natural experiment. Each extra euro of benefit raised the rent paid by new claimants by 78 cents, leaving 22 cents for the tenant to spend on anything else. She traces this to supply that barely moved: students and low-income households used the money to rent on their own, and the stock of rental homes stayed where it was. Stephen Gibbons and Alan Manning, studying cuts to UK housing benefit in the mid-1990s, found that landlords bore part of the benefit there too, with the size of the share depending on the dataset.

The OECD's Brick by Brick draws the general lesson. Housing allowances support demand while social housing adds supply, and where supply is rigid, more allowances can push up rents and prices. That offsets the help for recipients and makes housing dearer for everyone who doesn't get it. The OECD cites Fack and later French and American studies for the point, and recommends pairing allowances with measures that make supply respond.

Spain's supply is rigid in exactly the places young people want to live, as part one of our exercise set out. Spanish economists said as much when the scheme was relaunched. Jorge Galindo of EsadeEcPol told elDiario.es that studies find landlords keeping anywhere between 10% and 78% of rent subsidies, and José Ignacio Conde-Ruiz of Fedea warned that if the aid works, part of it passes into prices and the measure can turn regressive. Ivan Auciello of Future Policy Lab pointed to newer work suggesting that small, tightly targeted aid can help without moving prices.

That last point fits the Bono's numbers. A scheme that reaches 0.6% of under-35s is far too small to lift rents across a city. Where it can lift them is the narrow band of cheap flats and rooms just under its ceilings, which is precisely where its recipients go looking. A landlord letting a room for €280 knows a tenant with the aid can manage €300, and the published ceiling tells the whole market where the line sits. We found no published evaluation, from AIReF, the Banco de España or academic researchers, that measures this for Spain. Our reading is that the Bono nudges rents up in the segment it targets and leaves the wider market alone, and that the new aid, larger and with calls that never close, raises the stakes.

A benefit that tenants keep

The left is right that the young people furthest from an affordable home deserve help now, from the State, while supply catches up. Our piece on €350 out of €1,300 shows how far they are from that target today. The market-liberal tradition is right that money handed to tenants in a market short of homes partly ends up with landlords, and that the lasting answer is more homes, which is where part one of the exercise put its effort.

What fits neither camp is a benefit that measures its own leakage and adjusts to it. Spain already has the experiment in hand. The old Bono had three applicants for every place, and the new aid will be run region by region with fixed budgets. Wherever eligible applicants exceed the money, allocate by lottery and follow the rents that winners and losers sign. Within two years AIReF could tell Parliament how many cents of each euro reach the tenant in Madrid, Valencia or Zaragoza, and the argument between hunches becomes a number.

Then let that number drive the design. Where the tenant keeps most of the euro, keep paying. Where landlords take it, move the money to the supply side: the same euros spent as free guarantees for landlords who let at or below the area's reference price, along the lines of the public rent insurance we proposed, or as capital for limited-profit and public rental homes. Pay the aid against a reference rent for the area, so a landlord gains nothing by pricing up to the ceiling. And tie each region's share of the youth aid to the new rental homes it adds, so that the demand and the homes arrive in the same places at the same time.

Run that way, the Bono Alquiler Joven becomes one more piece of this week's exercise: cheaper housing for young people, with the gain landing on the tenant who pays the rent.