The Treasury Department's offices in Via XX Settembre 97, Rome, in the renovated rooms of the former Court of Auditors Library, house the Treasury Library, a specialized documentation centre for an extensive collection of paper and electronic books and periodicals, both Italian and foreign, on issues of economic and financial analysis, public accounting and specific legal fields.
It was founded in 1962 as a deposit of volumes originating from suppressed offices of the former Directorate General of the Treasury. The Treasury Library was officially established by a Ministerial Decree of 21 December 1972 to provide support to office staff for the Treasury Department's institutional activities.

The catalogues of books and periodicals in the Library and in other libraries inside the Palace of Finance and/or participating in the POLO TES, a library node on the National Library Service (SBN), can be browsed online.

The Treasury Library now houses 250 periodicals and 10660 monographs. It is open to the public and offers the following services:

• Lending and consultation of Italian and international books and periodicals on juridical and economic subjects
• Assistance with thematic bibliographical research (e.g. for competitive exams and doctoral research)
• Searching for books and periodicals in other libraries (inter-library lending and document delivery)
• Internet access, Wi-Fi network, photocopying and printing
• Reading and study hall