The Cámara de Comptos, the oldest Chamber of Accounting in Spain, was created in 1365 by Carlos II of Navarre. His aim was to strengthen control over Royal finances at a crucial moment for kingdom's economy. It exercised control over the persons who were responsible for collecting taxes in the Monarch's name, administered the kingdom's assets and advised the crown on financial matters. Thanks to its growing prestige, the Cámara de Comptos began assuming further responsibilities. Therefore, it followed that it promptly became the Treasury, overseeing the collection of taxes and its officials certified the quality of Navarrian currency minted by the Cámara de Comptos.

When Navarre was annexed by Castille, several attempts were made to abolish this institution. This was finally achieved by the order of the Royal Decree of the 18th of March 1836, resulting in its disappearance.

The Cámara de Comptos was re-established in 1980. It is entrusted with the supervision of spending, budget management and advises Parliament on financial issues. Although it has become the first autonomous institution with jurisdiction over the public sector's finances, the Cámara de Comptos is not a completely sovereign entity. It is directed by a president elected by the Parliament of Navarre but it does not represent any political parties' interests. It comprises a general secretary, lawyers, auditors with their personal auditing teams, financial advisers and office personnel.

The Cámara de Comptos fulfills its responsibilities by writing reports which analyse the administration of public funds and also suggest ways to improve spending.

The building housing the Cámara de Comptos (General Auditing Office), which is the only remaining example of civil Gothic architecture in Pamplona, was declared a national monument in 1868.

It was probably built in the 13th century and served as the seat of the Cámara de Comptos from 1525 until the institution was abolished in 1836. The same location was used as the official Mint for the Kingdom of Navarre.

The building is a solid stone structure with an equilateral arch that is supported by two long, thick imposts typical of the transition between the Roman and Gothic periods. Several of the original pointed-arched windows with cyclindrical mullions and a simply decorated capital are still remaining. Above the entrance there is an elevated tower-like wing where, in the middle of the 18th century, the Spanish Royal Coat of Arms was placed. The passageway leading to the courtyard is covered by a thick, barrel vault.

In the landscaped courtyard, one can find several historic and artistic fragments such as: an ancient well; archaeological remains, including a door, from the Saint Nicholas Chapel of Sangüesa; a latin inscription ordered by the Viceroy Cardona (1601) which was placed where the injured Saint Ignacio of Loyola fell in 1521 and a Gothic sepulchre with a reclining figure.

After the Cámara de Comptos ceased to exist, the building was occupied by the Commision for Historic and Artistic Monuments housing the budding collection of the Museum of Navarre and it also served as the first locale for private University of Navarre. In 1941 the Institución Príncipe de Viana (Department of Culture) was located here until 1995 when the Cámara de Comptos recuperated the building as its main office.