Annualize Colorado taxable wages under the 2026 worksheet
Colorado's DR 1098 method starts from current-period Colorado taxable wages, multiplies by the published pay-period count, applies the employee's DR 0004 information or the specified fallback, computes annual state withholding, and returns it to the pay period. That sequence makes weekly, biweekly, and semimonthly labels consequential. The salary calculator can establish gross-period compensation, but the official Colorado worksheet—not a generic annual tax percentage—controls the 2026 withholding estimate. Additional state withholding remains an explicit employee election after the formula.
Place FAMLI beside Colorado income tax rather than inside it
Colorado FAMLI is a paid-family-and-medical-leave premium, not state income-tax withholding. The 2026 total premium, employee share, employer choices, coverage, and federal wage-base coordination come from program rules. The calculator should use only the supported employee-side assumption and show the amount independently. When comparing cash pay with another state, use the bring-home pay calculator with the Colorado program line retained; deleting it merely to match another paycheck produces a false comparison.
Handle Colorado locality inputs as declared facts
A statewide calculation does not discover every city occupational tax, local service charge, or employer-specific deduction. Enter a local amount only when payroll or the responsible authority supports it, and label the jurisdiction. Federal withholding still follows 2026 Publication 15-T and Form W-4, while employee Social Security and Medicare use federal wage rules. The federal tax calculator provides an annual federal view; it should not be used to reverse-engineer Colorado locality or FAMLI amounts from net pay.
Bound the Colorado paycheck review to regular cash wages
This page cannot decide Colorado residency, reciprocity, wage sourcing, FAMLI coverage or exemption, employer-size responsibilities, benefit tax treatment, supplemental wages, tips, equity, or corrected payroll. It also does not calculate a final Colorado return. Retain the 2026 DR 0004, W-4, earning statement, program records, pay frequency, and year-to-date federal wage bases. Investigate differences with payroll and current Colorado and federal guidance. The scenario is educational arithmetic rather than individualized tax, paid-leave, employment, financial, or legal advice.
A Colorado reviewer should also preserve the DR 1098 intermediate values: annualized wages, employee allowance, annual state result, de-annualized amount, and additional withholding. Recording those steps distinguishes a state worksheet error from a FAMLI allocation issue. It also makes later table updates reviewable without reconstructing the employer's entire payroll system from a single net check or guessing which intermediate amount payroll rounded.
To isolate Colorado paycheck changes, normalize compensation through the salary calculator, put supplemental cash in the bonus tax calculator, and keep a verified overtime scenario in the overtime calculator.