Finance · North Dakota · Tax year 2026
North Dakota Self-Employment Tax Calculator 2026
On $100,000 of 2026 self-employment profit, a single North Dakota sole proprietor with no other income owes about $22,596: $14,130 of self-employment tax, $8,235 of federal income tax, and $232 of North Dakota income tax. That is 22.6% of profit, or $5,649 for each quarterly estimated payment.
Against its neighbors, the same $100,000 of profit costs $4,564 more in Minnesota and $232 less in South Dakota.
- State income tax
- 1.95% to 2.5%
- North Dakota tax on $100,000
- $232
- National rank
- #41 highest of 51
- Set aside on $100,000
- 22.6%
- State estimated payments
- Form ND-1ES
- LLC filing fee
- $135
- State sales tax
- 5% + local
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Enter your net profit — revenue minus business expenses — to see how much to set aside and what to pay each quarter.
A 2026 planning estimate using the standard deduction, not a tax return: it ignores credits, itemized deductions, and AMT. All calculations happen in your browser. Nothing is stored.
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North Dakota self-employment tax at common profit levels
2026 estimates for a single filer with no other income, using the standard deduction and no retirement or health insurance deductions. "Set aside" is the share of profit to move into a tax account; "Quarterly" is each of the four estimated payments.
| Profit | SE tax | Federal income tax | North Dakota tax | Total | Set aside | Quarterly |
|---|---|---|---|---|---|---|
| $40,000 | $5,652 | $1,775 | $0 | $7,427 | 18.6% | $1,857 |
| $60,000 | $8,478 | $3,559 | $0 | $12,037 | 20.1% | $3,009 |
| $80,000 | $11,304 | $5,344 | $0 | $16,647 | 20.8% | $4,162 |
| $100,000 | $14,130 | $8,235 | $232 | $22,596 | 22.6% | $5,649 |
| $150,000 | $21,194 | $16,413 | $957 | $38,564 | 25.7% | $9,641 |
| $250,000 | $29,851 | $36,509 | $2,601 | $68,961 | 27.6% | $17,240 |
Married filing jointly
The same profit, earned by one spouse filing jointly with no other household income.
| Profit | SE tax | Federal income tax | North Dakota tax | Total | Set aside | Quarterly |
|---|---|---|---|---|---|---|
| $40,000 | $5,652 | $398 | $0 | $6,050 | 15.1% | $1,512 |
| $60,000 | $8,478 | $1,885 | $0 | $10,363 | 17.3% | $2,591 |
| $80,000 | $11,304 | $3,550 | $0 | $14,854 | 18.6% | $3,713 |
| $100,000 | $14,130 | $5,335 | $0 | $19,464 | 19.5% | $4,866 |
| $150,000 | $21,194 | $9,795 | $58 | $31,048 | 20.7% | $7,762 |
| $250,000 | $29,573 | $25,154 | $1,552 | $56,280 | 22.5% | $14,070 |
How North Dakota taxes self-employment income
North Dakota starts from federal taxable income, so the federal standard deduction and the QBI deduction carry through to the state return before North Dakota's own adjustments.
- Standard deduction: $0 (none)
- Top rate: 2.5%; your bracket on $100,000 of profit is 1.95%.
2026 North Dakota income tax brackets (single)
| Taxable income over | Up to | Rate |
|---|---|---|
| $0 | $49,575 | 0% |
| $49,575 | $250,400 | 1.95% |
| $250,400 | and up | 2.5% |
2026 North Dakota brackets (married filing jointly)
| Taxable income over | Up to | Rate |
|---|---|---|
| $0 | $82,800 | 0% |
| $82,800 | $304,850 | 1.95% |
| $304,850 | and up | 2.5% |
North Dakota vs its neighbors
The same $100,000 of 2026 profit for a single sole proprietor, run through each state's rules. Federal tax is the same everywhere, so the difference is state income tax. Against its neighbors, the same $100,000 of profit costs $4,564 more in Minnesota and $232 less in South Dakota.
| State | State income tax | Total tax | Set aside | vs North Dakota |
|---|---|---|---|---|
| North Dakota | $232 | $22,596 | 22.6% | — |
| Minnesota | $4,796 | $27,161 | 27.2% | +$4,564 |
| Montana | $3,890 | $26,254 | 26.3% | +$3,658 |
| South Dakota | $0 | $22,365 | 22.4% | −$232 |
How the gap changes with profit
Extra tax (+) or savings (−) for a single filer if the same business were based in each of its neighbors instead of North Dakota.
| Profit | Minnesota | Montana | South Dakota |
|---|---|---|---|
| $40,000 | +$1,170 | +$990 | Same |
| $60,000 | +$2,268 | +$1,864 | Same |
| $80,000 | +$3,532 | +$2,840 | Same |
| $100,000 | +$4,564 | +$3,658 | −$232 |
| $150,000 | +$7,153 | +$5,559 | −$957 |
| $250,000 | +$13,365 | +$9,328 | −$2,601 |
What's different about North Dakota for the self-employed
- North Dakota starts from federal taxable income, so the federal standard deduction and QBI deduction carry through, and a large 0% bracket means many filers owe nothing.
- No local income taxes.
North Dakota estimated payments and deadlines
North Dakota collects its own estimated income tax with Form ND-1ES, separately from the IRS. Required when all four of these apply: you must pay federal estimated tax for 2026, your 2025 ND net tax liability was at least $1,000, you expect to owe at least $1,000 for 2026 after ND withholding, and your withholding will be under the smaller of 90% of 2026 tax or 100% of 2025 tax.
| Installment | North Dakota due date | Share of the year | Federal due date |
|---|---|---|---|
| Q1 | April 15, 2026 | 25% | April 15, 2026 |
| Q2 | June 15, 2026 | 25% | June 15, 2026 |
| Q3 | September 15, 2026 | 25% | September 15, 2026 |
| Q4 | January 15, 2027 | 25% | January 15, 2027 |
The 2026 North Dakota income tax return is due April 15, 2027.
File and pay through the North Dakota Office of State Tax Commissioner.
LLC fees and sales tax in North Dakota
- Forming an LLC: $135 state filing fee.
- Annual Report: $50, every year, due by November 15.
- Sales tax: 5% statewide, plus local rates in many cities and counties. Use the Sales Tax Calculator to price a sale.
A single-member LLC is taxed exactly like a sole proprietorship unless it elects S or C corporation status, so the self-employment tax figures on this page apply either way.
North Dakota self-employment tax FAQs
How much should I set aside for taxes if I'm self-employed in North Dakota?
For a single filer with no other income, about 20.1% of profit at $60,000, 22.6% at $100,000, and 25.7% at $150,000 for 2026, covering self-employment tax, federal income tax, and North Dakota income tax. Enter your own numbers in the calculator for a personal figure.
Does North Dakota tax self-employment income?
Yes. North Dakota taxes self-employment profit as ordinary income at 1.95% to 2.5%. North Dakota starts from federal taxable income, so the federal standard deduction and the QBI deduction carry through to the state return before North Dakota's own adjustments.
When are North Dakota estimated tax payments due for 2026?
April 15, 2026, June 15, 2026, September 15, 2026, January 15, 2027, using Form ND-1ES. Required when all four of these apply: you must pay federal estimated tax for 2026, your 2025 ND net tax liability was at least $1,000, you expect to owe at least $1,000 for 2026 after ND withholding, and your withholding will be under the smaller of 90% of 2026 tax or 100% of 2025 tax.
How much does an LLC cost in North Dakota?
The state filing fee to form an LLC is $135. Annual Report: $50, every year, due by November 15. A single-member LLC is still taxed like a sole proprietorship for federal purposes, so the self-employment tax figures above apply.
Sources and method
Computed with the Self-Employment Tax Calculator's 2026 engine and North Dakota's rules from the sources below. Planning estimates, not a return. Last checked 2026-10-08.
- www.tax.nd.gov/sites/www/files/documents/forms/individual/2025-iit/28709-form-nd-1es-2026.pdf
- www.tax.nd.gov/sites/www/files/documents/forms/individual/2026-iit/2026-income-tax-withholding-rates-booklet.pdf
- www.sos.nd.gov/business/business-services/business-structures/limited-liability-company-llc
- www.tax.nd.gov/sites/www/files/documents/guidelines/business/sales-use/sales-use-and-gross-receipts-tax-requirements-1.pdf