The No Bias in the Baseline Act would change how Congress calculates budget baselines, which are projections used to measure the cost of new legislation. Currently, the baseline assumes spending will increase with inflation and population growth, but this bill would require baselines to assume spending remains flat at current levels with no adjustments for inflation or other factors. The legislation affects budget calculations across the federal government and would make it easier to show spending cuts when proposing legislation that increases spending in real terms. The bill also removes several adjustment mechanisms from current law that allow flexibility in how baseline projections account for mandatory spending programs. No specific funding or implementation timeline is included in the legislation.