The "Keep Your Pay Act" introduces significant amendments to the Internal Revenue Code, aiming to provide tax relief for families and workers while increasing taxes for high-income individuals. For taxable years 2026 through 2035, the bill temporarily increases the standard deduction , raising it to $56,250 for married couples filing jointly and $37,500 for single filers. During the same period, it also temporarily increases the top income tax rates for the highest earners, substituting 41% for the current 35% rate and 43% for the current 37% rate. A key provision is the permanent expansion of the Earned Income Tax Credit (EITC) for individuals without qualifying children. This expansion lowers the minimum age for eligibility to 19 (18 for qualified former foster or homeless youth, and 24 for students) and eliminates the previous maximum age of 65. Additionally, the bill doubles the EITC credit and phaseout percentages to 15.3% and substantially increases the earned income and phaseout amounts, making the credit more generous and accessible for childless workers. The legislation establishes a new refundable monthly Child Tax Credit (CTC) , which will replace the existing annual credit for taxable years beginning after 2025. This new credit provides up to $360 per month for children under six and $300 per month for children aged six and older, with a significantly higher amount for infants under one month. The credit is subject to income limitations, with initial reductions beginning at $150,000 for joint filers and $112,500 for other filers, and further reductions at higher income thresholds. To ensure timely support, the Secretary of the Treasury is directed to make monthly advance payments of the CTC based on estimated eligibility. The bill outlines detailed procedures for establishing "periods of presumptive eligibility," including automatic enrollment for newborns and through government programs, and mechanisms for resolving competing claims for the same child. An online portal will allow taxpayers to manage their payments and provide necessary information, and these payments are protected from offset and garnishment. Furthermore, the bill introduces a new $500 credit for certain other dependents who do not qualify for the monthly child tax credit, also subject to income limitations starting at $400,000 for joint filers. Finally, it makes the application of EITC rules to U.S. possessions like Puerto Rico and American Samoa permanent by removing previous expiration dates, and allows taxpayers to elect to use their prior year's earned income for EITC calculations if it results in a larger credit.