Taxpayer Transparency and Efficient Audit Act - Requires the Internal Revenue Service (IRS): (1) to provide a substantive written response (not merely an acknowledgment letter) to any written correspondence from a taxpayer not later than 30 days after receiving such correspondence; (2) within 30 days after disclosing taxpayer information to any federal, state, or local governmental entity, to provide to the taxpayer a written notification describing the information, to whom it was disclosed, and when it was disclosed; (3) to provide the taxpayer a written letter explaining why an audit of such taxpayer has taken more than one year to complete; and (4) to use amounts authorized or appropriated outside of this Act to carry out such requirements.