State treatment of this bonus
NC flat supplemental withholding is 4.09% when the stated conditions are met. A $1,000 bonus has $40.90 of state withholding under this method. If you cannot confirm eligibility, this tool will not estimate it.
A worked bonus example
With a $1,000 bonus, eligible federal flat withholding of $220 and incremental FICA of $76.50 below the wage thresholds, the amount after those and NC withholding is $662.60 before other deductions.
When this estimate does not apply
Only the state flat method is supported here. The federal method selector does not change the state method.
Regular resident W-2 wages, separately paid cash bonus after the entered regular wages, in the same payroll period only. A bonus paid before those regular wages is not supported. No benefit changes, state exemptions, stock awards, gross-up, or earlier supplemental payment in that period. Federal assumptions are shown in the form. Withholding is a payment toward tax, not the final tax bill.
Sources and related tools
Reviewed August 31, 2026. Calculate regular North Carolina pay · Federal bonus methods · Coverage and methodology