Regardless of the prime rate, we'll ensure you get the most competitive offer in the current market. Submit an Email Question.Fund the Valley's future, invest in SRP. Explore information for SRP investors, including documents on SRP financials, bond disclosures and credit ratings. Higher bond yields might make bonds more attractive compared to real estate, possibly reducing investment demand in the real estate sector. Use SmartAsset's mortgage rate comparison tool to compare mortgage rates from the top lenders and find the one that best suits your needs. Now there is high demand for these bonds and the Feds lower the yield to make them more attractive; the effect of which is to lower long term mortgage rates. On January 1 of each year, the Arizona Department of Revenue (ADOR) will add any outstanding interest as of that date to the principal amount of tax still owed.