Internal Revenue Service Math and Taxpayer Help Act of 2025 or the&nbsp;IRS MATH Act of 2025This bill requires the Internal Revenue Service (IRS) to provide specific information on a notice related to a math or clerical error, send a notice related to an abatement of taxes assessed due to a math or clerical error, provide procedures for requesting such an abatement, and implement a pilot program for sending notices of a math or clerical error.Under the bill, a notice sent by the IRS regarding&nbsp;a math or clerical error must include<ul><li>a clear description of the error and the specific federal tax return line on which the error was made,</li><li>an itemized computation of adjustments required to correct the error,</li><li>the telephone number for the automated transcript service, and</li><li>the deadline for requesting an abatement of any tax assessed due to the error.</li></ul>Further, the bill requires the IRS to send a notice related to an abatement of tax assessed due to a math or clerical error that clearly describes the abatement and includes an itemized computation of adjustments to be made to the items described in the notice of the&nbsp;error.The bill also requires the IRS to<ul><li>provide procedures for requesting an abatement of tax assessed due to a math or clerical error,</li><li>implement a pilot program to send notices of a math or clerical error by certified or registered mail, and</li><li>report to Congress certain information about the pilot program.</li></ul>