North Dakota State Income Tax Guide (2026)

North Dakota completed an appreciably aggressive tax restructuring under HB 1158 of 2023. The prior structure: 5 brackets ranging from 1.10% to 2.90% top, with thresholds adjusted for inflation. The new structure (effective tax year 2023 forward): a single flat 1.95% rate on all taxable income above the federal-conforming standard deduction. ND now has the lowest flat income tax rate among any of the 41 US states with personal income tax. The 9 no-income-tax states (AK, FL, NV, NH, SD, TN, TX, WA, WY) are technically lower, but among states that levy income tax, ND is the floor.

The flat 1.95% rate is appreciably below comparable Midwest peers: Iowa 3.8% flat, Indiana 2.95% flat + mandatory county piggyback (combined 4-5%), Illinois 4.95% flat, Wisconsin top 7.65% (middle bracket 5.3%), Minnesota top 9.85%. For a typical $100K single ND filer: state income tax is about $1,640 after the federal-conforming standard deduction. Compare to $1,170 at 2.95% (IN, without county piggyback), $3,800 at 4.95% IL, $4,300 at WI's 5.3% middle bracket, $5,200 at MN's progressive structure. North Dakota wins on income tax against every Midwest neighbor at every income level.

Standard deduction conformity with federal is the simplification feature. ND uses federal AGI as the starting point on Form ND-1 and accepts the federal standard deduction ($16,100 single / $32,200 MFJ for 2026) without state-level modification. This is appreciably simpler than states with their own SD schedule (like MD, NJ, NY, all of which have appreciably lower SDs). For self-prepared filers, ND is among the easiest state returns in the country.

Social Security is fully exempt at the ND state level under a 2021 reform — the state previously taxed SS benefits along the federal-conformity formula, but the 2021 legislature appreciably expanded the SS exemption to full exemption for all retirees. Combined with the flat 1.95% rate, ND is appreciably retirement-friendly for SS recipients drawing additional pension or IRA income.

North Dakota's economy and fiscal structure depend appreciably on oil and gas production from the Bakken Formation (also called the Williston Basin), located in Western North Dakota across Williams, McKenzie, Dunn, Mountrail, and surrounding counties. The Bakken became one of the most productive oil shale plays in the US during the 2010-2014 boom (driven by horizontal drilling and hydraulic fracturing technology), and remains a major US oil production region in 2026 despite some boom-bust commodity cycles. North Dakota is consistently among the top 3-4 oil-producing states in the country.

Major operators: Continental Resources (founded by Harold Hamm, headquartered in OK but with appreciable ND operations), Hess Corporation, ConocoPhillips, Marathon Oil, EOG Resources, plus dozens of midstream pipeline operators (ONEOK, Targa Resources, Hiland Partners) and oilfield services firms (Halliburton, Schlumberger, Baker Hughes, Liberty Oilfield Services). Williston, Watford City, Dickinson, and Tioga are the central Bakken-cluster towns. Worker comp in the Bakken is appreciable — entry-level field operations $70-100K, experienced operators and engineers $130-250K+, drilling supervisors and senior engineers $200K+. The lifestyle is genuinely demanding (12-hour shifts, harsh weather, isolated towns) but the comp-plus-no-income-tax pitch is appreciable.

The Legacy Fund is North Dakota's sovereign-wealth-style fund, established in 2010 via constitutional amendment. It receives 30% of oil and gas severance tax revenue (the tax on every barrel produced from state lands and on producer-paid royalties). As of 2026, the fund holds approximately $11 billion in invested assets. The fund's principal cannot be spent (constitutional protection), but a portion of investment earnings can be appropriated by the legislature for state operations. This is the structural fiscal reason ND can afford the lowest flat income tax rate in the country — oil severance revenue plus Legacy Fund earnings cover an appreciable portion of state operations without needing high income tax.

Beyond oil, ND's economy is appreciably more diversified than its reputation suggests. Fargo (the largest city) is a regional headquarters cluster — Sanford Health (one of the largest rural healthcare systems in the country, with operations across ND, SD, MN, IA, and other states), Microsoft Fargo (a substantial Microsoft Security Operations Center with appreciable cybersecurity employment), Bobcat Company (the compact equipment manufacturer), Doosan (Bobcat parent), Aldevron (biotech, acquired by Danaher), Cardinal IG (glass manufacturing). Grand Forks anchors Altru Health System and the University of North Dakota. Bismarck (state capital) anchors state government and Bismarck-Mandan healthcare. Agriculture remains appreciable across the state — wheat, soybeans, corn, sugar beets, sunflowers, durum (the largest US producer for several crops).

Three scenarios that cover most readers. Find the one closest to you. If none match, the calculator at the top is for you.

North Dakota property tax statewide effective average is about 0.99% on market value — moderate by national standards, near the national average of 1.10%. Approximate effective rates by county on a primary residence: Cass (Fargo / West Fargo) 1.10-1.40%, Burleigh (Bismarck / Mandan) 0.85-1.10%, Grand Forks 1.00-1.30%, Williams (Williston, the Bakken hub) 0.85-1.10%, Stark (Dickinson) 0.80-1.05%, Stutsman (Jamestown) 0.85-1.10%, Ward (Minot) 0.95-1.20%.

The variability driver is school funding — like most Midwest states, ND relies on local property tax for an appreciable share of K-12 funding. Cass County (Fargo) has higher effective rates than Burleigh (Bismarck) primarily because Fargo school funding mechanics include higher local levies. Williston (Williams County) property tax has fluctuated noticeably with the Bakken boom-bust cycle — during the 2010-2014 boom, rapid housing demand drove property values appreciably higher, with corresponding tax bills; the subsequent commodity-price downturn moderated assessments.

ND offers a Homestead Tax Credit for residents 65+ or disabled with income under specified thresholds — appreciably reduces taxable value on a primary residence. Combined with ND's already-low flat income tax, no SS tax, and no estate tax, the Homestead Tax Credit makes ND appreciably retirement-friendly for moderate-income retirees. Apply with your county tax assessor.

No state real estate transfer tax. The OBBBA SALT cap raise to $25K softens the deductibility hit on annual property tax for high earners, though at ND's relatively low income tax rate, most filers don't approach the SALT cap on state income tax alone.

If you're earning $100K+ in ND and you're not doing most of these, you may be leaving real money on the table. None of this is exotic. Most of it is 30 minutes of setup once a year and discipline the rest of the year.

North Dakota offers appreciably the lowest flat-rate income tax in the country (excluding the 9 no-tax states). Combined with federal standard deduction conformity, full SS exemption, no state estate or inheritance tax, moderate property tax (~0.99% effective), and the Bakken-funded Legacy Fund providing fiscal stability, ND's tax structure is genuinely favorable for working professionals and retirees alike. The structural offsets are climate (appreciable winters), distance from major metros (Fargo and Bismarck are the only metros above 100K population), and Bakken economic cyclicality with commodity prices.

Run your numbers in the calculator above. The ND state line applies the flat 1.95% rate with the federal-conforming standard deduction — appreciably the lowest flat income tax rate among the 41 US states with income tax.

If you're 65+ or disabled, apply for the Homestead Tax Credit with your county tax assessor. If you have kids in college planning, contribute to ND College SAVE 529 to capture the modest state-tax deduction.

If you're a Bakken oil & gas worker or oilfield services professional employed in ND but residing in another state, talk to a CPA about workplace-state versus home-state tax mechanics. The biggest tax mistake most North Dakotans make isn't paying too much state tax — it's missing the Homestead Tax Credit at retirement or being unprepared for Bakken-area Williams County property tax variability driven by commodity-price cycles.