Be sure to write your name and court number on your check or money order and include your statement coupon with your payment. What is a Payoff Agreement?A payoff agreement is an informal contract in which a creditor agrees to accept the balance of a debt owed as full payment. Log in to your account online to make a payment, check your loan balance and more. Our Loan Servicing team is always happy to assist you. Step 1 - Online Property Tax Payments. Salt Lake County hopes that you find paying your property taxes online a quick and simple process. Salt Lake City, UT 84165-0250. The process should take a minimum of 30 days to complete. Zions Bancorporation One South Main Street Salt Lake City, UT 84133-1109 Phone: 1-800-974-8800 Customer Service Phone: 888-307-3411