Utah Paycheck Tax Calculator
Utah Paycheck Tax Calculator . The state income tax rate in utah is a flat rate of 4.95%. It does not contain all tax laws or rules. Utah 2018 State Tax Calculator Utah Foundation from www.utahfoundation.org It is not a substitute for the advice of an accountant or other tax professional. Utah has a very simple income tax system with just a single flat rate. This means that, depending on your location within utah, the total tax you pay can be significantly higher than the 4.85% state sales tax.