CPI vs Reference Index: Tenant Guide Spain
CPI and Reference Index: what are the differences?
The CPI measures the general evolution of prices and may appear in your contract as a criterion to update the rent; a reference index is usually a tool that some administrations use to guide increases or local policies. The regulation governing urban leases establishes that updates depend on the agreement between parties and the applicable legislation [1].
- Check the update clause that mentions the "CPI" or a specific index in your contract.
- Verify the deadlines to notify increases and to respond in writing.
- Request the calculation justification in writing if the landlord applies a different index.
- Keep receipts, communications and correspondence as evidence.
Keep all notifications and receipts in a safe place.
How to respond to an increase
If you receive an increase, act calmly but quickly: review the contract, ask for the calculation in writing and gather evidence. If the discrepancy persists, you can file a claim or go to the competent court, usually the Court of First Instance [2].
- Review the contract and the index applied.
- Gather documentation: receipts, communications and photos if applicable.
- Send a formal request in writing asking for explanation and adjustment if applicable.
- Seek advice from consumer services or legal counsel if there is no response.
- As a last resort, file a claim in the appropriate court.
Respond within procedural deadlines so as not to lose rights.
Frequently Asked Questions
- Which index should be applied to update my rent?
- The one you agreed in the contract applies; if CPI or a specific index is mentioned, that will be the applicable criterion.
- Can the landlord impose a unilateral increase?
- The landlord cannot impose a unilateral increase outside the agreement; changes must conform to the contract and the law.
- Where can I complain if I cannot reach an agreement?
- You can go to consumer services, mediation or file a claim in the Court of First Instance as appropriate [3].
How to
- Locate the update clause in your contract.
- Calculate the difference by applying the indicated index.
- Send a letter or certified email requesting correction if applicable.
- Contact consumer services or seek legal advice.
- File a claim if there is no amicable solution.
