Deficit Committee Transparency Act

Deficit Committee Transparency Act - Amends the Budget Control Act of 2011 to require any member of the Joint Select Committee on Deficit Reduction, and any individual on the committee staff or the personal staff of a committee member, to disclose any meeting, within 48 hours after it takes place, with any other individual relating to matters before the committee if the individual: (1) is a registered lobbyist or agent of a foreign principal; (2) has any direct personal or pecuniary interest in any legislative measure pending before the House of Representatives or the Senate or reported by a committee of either chamber; or (3) is in the employ of or represents any party or organization for the purpose of influencing, directly or indirectly, the passage, defeat, or amendment of any legislative proposal.

Requires any member of the Joint Committee who is a candidate with an authorized committee or who is a candidate or an individual holding federal office affiliated with a leadership political action committee (PAC) to disclose, within 48 hours of receipt,  any contribution such committee or leadership PAC receives from an individual, or any entity, which: (1) is a registered lobbyist or agent of a foreign principal; (2)  the authorized committee or leadership PAC, using its best efforts, determines is in the employ of or represents any party or organization for the purpose of directly or indirectly influencing the passage, defeat, or amendment of any legislative proposal; or (3) makes a single contribution in excess of $500.

Requires the Co-Chairs of the Joint Committee, before its first meeting,  to establish a public website containing: (1)  such disclosures of lobbying activities and meetings, and of campaign or Member-designated leadership PAC contributions; (2)  the final report on specified activities and contributions; and (3) such other information the Joint Committee or its staff deems necessary and beneficial to inform the public of  its proceedings, deliberations, and deadlines.

Requires the Joint Committee's proposed report and legislative language to be made publicly available on its website at least 72 hours before the vote on such measures.

Requires any hearing of the Joint Committee open to the public to be open to coverage by audio and visual means, including in a format that is streaming on the Internet via the Joint Committee's website.