Please understand the following conditions before proceeding to use Online Payment. If you decline to accept the following conditions, please go back to the referring page. Online Payment is for Business Personal Property Tax, Mobile Home Taxes, or  Aircraft Tax ONLY. If you reached this page to pay the tax on your home (or any other real property) please go to the County Treasurer's page. The fees associated with this service are: Credit Card Fee: 2.5% of the amount remitted. E-Check Fee: $3 per transaction of $10,000.00 or less. $15.00 per transaction over $10,000.00. NOTE: Official Payments Corporation, NOT Salt Lake County, retains these fees. You must still file the annual business property declaration by mail even if you pay online. Failure to file the declaration timely will still trigger a non-filing penalty.