Archive of historical interest rates for Qualified Tax Credit Bonds (QTCB) through January 29, 2018. QTCBs are no longer being issued.
The Historical Qualified Tax Credit Bond Interest Rates dataset provides the historical interest rate, term to maturity, and permitted sinking fund yield (PSFY) for Qualified Tax Credit Bonds (QTCBs) reported daily through January 30, 2018. QTCBs include: new clean renewable energy bonds, qualified energy conservation bonds, qualified zone academy bonds, and qualified school construction bonds.