A mortgage payoff letter can come in two forms. One form tells borrowers the remaining principal amount and interest they have to pay to close out the loan.The mortgage payoff calculator helps you find out. Use SmartAsset's free Utah mortgage loan calculator to determine your monthly payments, including PMI, homeowners insurance, taxes, interest and more. Utah Housing Corporation (UHC) is committed to helping our homeowners who are facing difficulties making their payments. 9 Simple Steps to a Home Loan. 1. 2. Credit-Only Approval. There are three fields to fill in: home price, down payment and mortgage interest rate. In the dropdown box, choose your loan term. For conduit loans, and CMBS they usually are offered in the form of yield maintenance or defeasance.