Small Business Repayment Relief Act of 2020 This bill requires the Small Business Administration (SBA) to pay the principal, interest, and any associated fees owed on certain loans made to small businesses for a six month period. The SBA must also encourage the Federal Deposit Insurance Corporation, the Office of the Comptroller of the Currency, and state bank regulators to not require lenders to increase their reserves on account of receiving such payments made by the SBA. The SBA shall waive statutory limits on maximum loan maturities for certain loan durations where the lender provides a deferral and extends the maturity of such loans and, when necessary to provide more time because of difficulties during the COVID-19 (i.e., coronavirus disease 2019) pandemic, extend lender site visit requirements.