When you refinance to a lower rate, that reduces the size of your mortgage interest deduction, which affects your savings from refinancing. The Mortgage Refinance Calculator can take that into account, which is why it asks for your income tax rate.
Look up yo in Wiktionary, the free dictionary. Yo is an English slang interjection, commonly associated with American English. It was popularized after being used commonly by the Italian-American community in Philadelphia, Pennsylvania since the 1940s.
The name Yo is a Hebrew baby name. In Hebrew the meaning of the name Yo is: El. Numerology. People with this name have a deep inner desire for a stable, loving family or community, and a need to work with others and to be appreciated. People with this name tend to be orderly and dedicated to building their lives on a solid foundation of order and service. They value truth, justice, and discipline, and may be quick-tempered with those who do not.