How to Reduce Cadastral Value and Recover Overpaid IBI in Spain

IBI is an annual property tax. If your cadastral value exceeds market value, you are overpaying.

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Key facts and steps

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Compare cadastral value with market value on portalinmobiliario.com or idealista. If the excess exceeds 15%, it is worth challenging.

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Process

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1. Independent valuation report

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2. Application to the Gerència del Cadastre

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3. Solicitud de devolución (overpayment refund) under TRLRHL

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Statute of limitations: 4 years — last 3 years are refundable.

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Real case: cadastral value -28% → IBI -€1,176/year → €3,528 refunded.