How a North Dakota paycheck works
North Dakota has the lightest broad-based income tax of any state that still has one. A 2023 reform replaced five brackets with three, and the first of the three carries a zero rate that reaches well past the median full-time wage. In practice a large share of North Dakota employees have no state income tax withheld at all, and those who do pay a rate that never exceeds a low single figure.
Federal income tax withholding
Federal withholding annualises the wage, subtracts the standard deduction for the filing status on Form W-4 Step 1, applies the graduated schedule for that status, and deducts the dependent credit from Step 3. This page models a W-4 with Steps 2 and 4 blank: one job, no spouse income, no other income, no extra withholding.
Social Security and Medicare
Social Security takes a flat rate on wages up to an annual ceiling that moves each year. Medicare applies to every dollar, and above a fixed threshold the employer withholds the Additional Medicare tax on the excess.
The North Dakota calculation
North Dakota does not have its own withholding certificate. It reads the federal Form W-4 directly: the filing status ticked in Step 1(c) selects one of three annual percentage tables, and the annual wage goes straight into that table with no allowance subtraction. Each table starts with a zero band whose width depends on the filing status, so married and head-of-household employees stay out of tax to a higher wage than single employees.
Employers whose staff still have a Form W-4 from before 2020 use a different set of tables that do subtract withholding allowances. This calculator models the current W-4, which is what a new employee files.
Local income tax
No North Dakota city or county taxes wages. Fargo, Bismarck and Grand Forks have identical payroll deductions.
What the employer pays on top
The employer matches Social Security and Medicare and pays federal unemployment tax at its net rate. North Dakota unemployment insurance is an employer contribution at an experience-rated percentage on a state wage base. There is no employee-side state levy.
What this calculator assumes
The figure models a salaried employee paid evenly across the year with a standard Form W-4 and state certificate, and no pre-tax deductions. It leaves out:
- Pre-tax contributions such as a 401(k), health premiums, HSA or flexible spending accounts.
- Extra withholding requested on the federal or state certificate, and the W-4 Step 2 and Step 4 adjustments.
- Bonuses and other supplemental wages, which may be withheld at a flat supplemental rate.
- Employer-side state unemployment insurance, which is priced per employer.
- Employees outside the normal Social Security system, such as some public-sector staff and certain visa holders.
Withholding versus your final tax bill
Withholding is a prepayment. The federal and state returns replace these assumptions with your real situation: itemised deductions, other income, and credits payroll knows nothing about. One job usually produces a refund; two jobs or a working spouse often produce a balance due.