Utah taxes all income at 4.5% but delivers its deduction as a credit that shrinks as you earn more — so despite the flat rate, the effective rate rises with income.
| Gross pay | — |
| Federal income tax | — |
| Social Security6.2% up to $184,500 | — |
| Medicare1.45%, no cap | — |
| State income tax | — |
| 401(k) contribution | — |
| Health and HSA | — |
Useful if you are comparing a job that pays monthly against one that pays every two weeks, or working out what a raise is worth per paycheck.
| Pay schedule | Gross | Take-home |
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Utah has no standard deduction in the usual sense. Instead it gives a taxpayer credit worth 6% of your federal standard or itemised deduction, excluding the deduction for state and local income tax.
That credit then phases out at 1.3 cents for every dollar of income above roughly $18,213 for a single filer, or double that for a couple. As the credit erodes, the share of your income actually taxed at 4.5% rises.
The result is a flat statutory rate producing a progressive effective rate. A single filer at $30,000 pays meaningfully less than 4.5% of income; one at $120,000 pays close to the full 4.5%. Utah is the clearest example in the country of a flat tax that behaves progressively through its credit structure.
This calculator applies the credit at its full value and does not model the phase-out, so the Utah figure reads low as income rises. Treat it as a floor above roughly $18,000.
Utah has reduced its rate in successive legislative sessions — 4.95% to 4.85%, then 4.65%, then 4.55%, and to 4.5% under House Bill 106 retroactive to the start of 2025.
Unlike the trigger-based mechanisms in Georgia, Indiana or Oklahoma, Utah's reductions have been enacted directly each session rather than fired automatically by revenue conditions. That makes the trajectory dependent on political appetite rather than formula, but it has been consistent.
Utah technically taxes Social Security benefits, which places it in a small minority of states. It then offsets that with a nonrefundable credit covering the tax on those benefits, phased out above income thresholds.
For most retirees the credit eliminates the liability entirely, so the practical effect matches states that exempt Social Security outright. For higher-income retirees the credit phases out and the benefits become taxable in substance as well as form.
Utah allows an exemption of $2,111 per dependent, which sits alongside the taxpayer credit rather than replacing it.
No Utah city or county levies an income tax. The state figure here is the complete income tax picture, which is true of most of the Mountain West but not of the Midwest states Utah is often compared against.
Because the taxpayer credit that stands in for a standard deduction phases out at 1.3 cents per dollar of income above roughly $18,213 single. As the credit shrinks, more of your income is effectively taxed at the full 4.5%.
Technically yes, but a nonrefundable credit offsets the tax for most recipients. The credit phases out at higher incomes, at which point the benefits are taxed in substance.
The calculator applies the taxpayer credit in full and does not model its phase-out, so the figure reads low as income rises above roughly $18,000.
No. No city or county levies one.