Paycheck Protection Small Business Forgiveness Act This bill modifies loan forgiveness under the Paycheck Protection Program established to support small businesses in response to COVID-19 (i.e., coronavirus disease 2019). Specifically, the bill provides for automatic forgiveness of a paycheck protection loan that is not more than $150,000 if the recipient submits a one-page form. Further, it prohibits any enforcement or other action against a lender relating to loan origination, forgiveness, or guarantee based on the lender's reliance on certifications or documentation submitted by a loan applicant or recipient.