State guarantee for young people buying their first home: how it works

What the ICO guarantee scheme for young people and families involves

The scheme is not a non-repayable grant or a direct capital transfer for purchasing a property. The mechanism operates through a public guarantee granted by the state to financial institutions that have joined the relevant agreement. Thanks to this cover, the lender can increase the percentage of financing relative to the property's valuation or purchase price, typically reaching up to 100% of the lower of these values.

In standard banking practice, lenders typically grant mortgage loans up to a maximum of 80% of the property's value. Through the state guarantee, the public body guarantees up to the remaining 20% that the buyer has been unable to accumulate as prior savings. In specific circumstances where the acquired property has a Class A or B energy efficiency rating, the state guarantee cover can rise to 25% of the loan principal.

It is vital to understand that ultimate responsibility for repaying the entire debt rests solely with the borrower. The public guarantee reduces credit risk for the lender, but it does not exempt the buyer from repaying 100% of the borrowed principal and its corresponding interest.

Eligibility criteria for applying for the ICO young person's mortgage guarantee

To qualify for this public guarantee when applying for a mortgage loan, applicants must meet a series of personal, financial, and administrative criteria set out in the scheme's regulations.

Personal and age criteria

• Age limit: Applicants must be aged 35 or under at the time of submitting the application. Where the mortgage is applied for jointly by two individuals, both must meet the age requirement, except for specific exceptions set out for family units.
• Families with dependent minors: Parents of families with dependent minors can also access this scheme, in which case there is no maximum age limit for the adults.
• Legal residence: Applicants must prove legal and continuous residence in Spain during the two years immediately preceding the guarantee application.

Income and asset requirements

• Income limits: The buyer's annual income cannot exceed the limits set by the applicable income indicator, generally fixed at a maximum of 4.5 times the annual IPREM. Where two buyers purchase the property jointly, the combined income limit is weighted according to regulatory coefficients.
• Accumulated wealth: Applicants cannot hold existing assets exceeding the maximum thresholds stipulated in the regulatory order.
• Ownership of other properties: The applicant must not own another residential property within Spain. Regulatory exceptions exist for individuals who have inherited an undivided share of a property or where a previously owned property is inaccessible due to divorce, separation, or other duly proven unforeseen circumstances.

Property eligibility and price caps

The public guarantee is strictly reserved for buying properties intended as the buyer's primary and permanent residence for a minimum continuous period. The property cannot be let commercially or used for tourist rentals during the timeframe set by the regulatory rules.

Additionally, maximum caps are established for the purchase price of the property. These caps vary depending on the geographical location and autonomous community where the property is situated, adjusting to the real estate market conditions of each region.

Purchase of official protection housing (VPO)

In the specific case of the Comunidad de Madrid, when the transaction involves purchasing properties subject to Official Protection (VPO) schemes or in the process of urban disqualification, it is necessary to verify compatibility between the public guarantee's price limits and the maximum sales prices set by regional regulations in Madrid. The property's classification determines both the maximum price per square metre and the conditions for disqualification and subsequent sale on the open market.

Step-by-step process for applying for the guaranteed mortgage

Managing applications under the young person's ICO mortgage guarantee scheme is not conducted directly through Instituto de Crédito Oficial offices or the Ministry, but rather through the banking institutions that have formally signed up to the collaboration agreement.

1. Prior check of requirements: The buyer must verify that they meet the age, income, residence, and asset history criteria before opening a file.
2. Property selection and valuation: The property purchase is agreed and an approved valuation is ordered from an official valuation firm to ascertain the property's technical value.
3. Submission of the bank application: Personal, employment, and tax documentation is submitted to a participating bank enrolled in the public guarantee scheme.
4. Credit risk analysis: The bank performs an affordability assessment to verify that the applicant has sufficient repayment capacity to cover the monthly instalments associated with financing up to 100% of the property price.
5. Approval and completion before a notary: Once the state guarantee and mortgage loan are approved, the transaction is executed as a public deed before a notary and registered in the Land Registry.

Key financial factors to consider before applying

Securing a mortgage that covers up to 100% of the property's value requires a thorough analysis of long-term repayment capacity. Financing the full purchase price leads to significant increases in monthly financial burdens compared to a traditional loan at 80% LTV.

Firstly, because the principal debt is larger, regular monthly repayments are proportionally higher. This requires checking that the debt-to-income ratio relative to net monthly earnings remains within prudent financial guidelines.

Secondly, while the state guarantee covers the capital contribution required for the purchase price, it does not cover the indirect costs of the transaction. The buyer must have an existing liquidity reserve (typically between 10% and 12% of the purchase price) to cover taxes such as Property Transfer Tax (ITP) or VAT, as well as notary, registration, and administrative fees.

Finally, the contractual terms set by the bank (fixed, variable, or mixed interest rates, as well as tied product commitments) must be evaluated in detail to determine the total cost of credit over the full term of the contract.

Mortgage credit intermediation as a guarantee of viability

Analysing the different offers from lenders participating in the agreement and structuring a robust risk application requires in-depth knowledge of the mortgage market. A suitable preliminary assessment avoids rejections from bank underwriting departments and helps negotiate terms tailored to the applicant's financial profile.

At Sky Real Estate, we operate as a Mortgage Credit Intermediary (ICI) registered with the Banco de España under code D-286. Our professional practice in the legal and real estate sectors was recognised in the Sky Law European Legal Awards for 2023, 2024, and 2025.

We rigorously assess each buyer's borrowing capacity to process financing applications with complete transparency, legal certainty, and efficiency. If you would like to check your eligibility and manage your mortgage loan with expert backing in the sector, consult our mortgage credit intermediation services to receive tailored advice.