Quarterly Estimated Tax Calculator — North Dakota (2026)
If you earn income in North Dakota without withholding — freelancing, contracting, rentals, dividends — the IRS expects payment four times a year, not once. This calculator turns your expected 2026 net profit into a per-quarter number covering self-employment tax, federal income tax and North Dakota state tax. North Dakota uses a progressive income tax with 3 brackets running from 0.00% up to 2.50%, applied after a state standard deduction of $16,100.
North Dakota Quarterly Tax Calculator
Gross 1099 income minus business expenses.
2026 due dates and safe harbor
Federal estimated payments are due April 15, June 15, September 15 of 2026 and January 15 of 2027. You avoid penalties by paying either 90% of the current year's liability or 100% of last year's (110% if prior-year AGI exceeded $150,000) — the safe-harbor rule.
North Dakota runs its own estimated-payment schedule that usually mirrors the federal dates. On $90,000 of net profit the North Dakota portion alone is about $111 per quarter.
Underpayment penalties
The IRS charges interest-style penalties per quarter you fall short, currently around 7–8% annualized. Paying late in the year does not fix an early-quarter shortfall unless you use the annualized income method on Form 2210.
Irregular income is common in oil work around Fargo: if Q1 is slow and Q4 is huge, the annualized method usually beats four equal payments.
Paying as a North Dakota taxpayer
Pay federally through IRS Direct Pay or EFTPS, and North Dakota through the state revenue department's online portal — keep confirmation numbers for both.
North Dakota has no separate city or county income tax, so the state figure above is the full sub-federal income tax you pay.
Local and payroll taxes North Dakota adds on top
North Dakota adds no state-mandated employee payroll deduction beyond FICA, so nothing extra is taken from your gross pay at the state level.
North Dakota has no separate city or county income tax, so the state figure above is the full sub-federal income tax you pay.
Nobody withholds these for you when you are self-employed in North Dakota. Local wage taxes, city business licences and gross-receipts style levies are yours to register for and remit alongside your quarterly federal and state estimates.
Working across a state line from North Dakota
North Dakota holds income-tax reciprocity agreements with Minnesota and Montana. If you commute between them, your wages are taxed only by your state of residence — file the exemption certificate with your employer so the wrong state is not withheld from every paycheck.
Remote and hybrid work complicates this further: most states tax income where the work is physically performed, so a Fargo resident spending part of the year at a client site in South Dakota may owe a nonresident return there. Keep a day-count log if you split time between states.
The rest of your North Dakota tax bill
North Dakota charges a 5% state sales tax, homeowners pay an average effective property tax of 0.98% of market value, and the minimum wage in force during 2026 is $7.25 an hour.
Combined rates average about 7.0% with local taxes.
Income tax is only one part of a state's take. North Dakota recovers revenue through sales and property tax as well, which is why headline income tax rates alone are a poor guide to how far a salary really goes. North Dakota exempts Social Security and taxes remaining retirement income at very low bracket rates.
North Dakota vs South Dakota on the same salary
On a $90,000 salary, a single filer keeps about $71,576 a year in North Dakota against roughly $72,145 in South Dakota — a difference of $569, or $47 a month.
Effective combined rates are 20.5% in North Dakota and 19.8% in South Dakota. Set that gap against living costs: index 95 here versus 93 there, with property tax at 0.98% and 1.17% respectively.
North Dakota income tax brackets 2026 (single filer)
| Taxable income | Rate |
|---|---|
| $0 – $44,725 | 0.00% |
| $44,725 – $225,975 | 1.95% |
| $225,975 and up | 2.50% |