Estimate your self-employment tax in Fort Smith for 2026: the 15.3% SE tax, the deductible half, federal income tax, state income tax, and quarterly payments.
Last updated: May 2026 · Data: MIT Living Wage Calculator, C2ER, U.S. Census, BLS, IRS, state and city sources
Fort Smith self-employed workers pay federal SE tax and federal income tax, plus Arkansas state income tax (2% to 4%). Arkansas has been gradually reducing its top income tax rate. The state also has relatively high sales tax rates when combined with local taxes.
| Net Profit | SE Tax | Half-SE Deduction | Total Est. Tax | Per Quarter |
|---|---|---|---|---|
| $30,000 | $4,239 | $2,119 | $5,969 | $1,492 |
| $50,000 | $7,065 | $3,532 | $11,750 | $2,938 |
| $75,000 | $10,597 | $5,299 | $19,600 | $4,900 |
| $100,000 | $14,130 | $7,065 | $29,150 | $7,287 |
| $150,000 | $21,194 | $10,597 | $48,671 | $12,168 |
Single filer, standard deduction. Total tax = SE tax + federal income tax + Arkansas state tax. Estimates only.
Fort Smith sits on the Oklahoma border along the Arkansas River and is the second-largest city in Arkansas, with an economy built on manufacturing and logistics (including the headquarters of trucking company ArcBest), healthcare, and a U.S. Marshals heritage.
| Local Metric | Fort Smith (2026 estimate) |
|---|---|
| Metro population | 90,000 |
| County / jurisdiction | Sebastian County |
| Cost of living index (US avg = 100) | 78 |
| MIT living wage, single adult | $17.50/hour |
| MIT living wage, one earner supporting a family of four | $37.00/hour |
| Applicable minimum wage | $11.00/hour |
| Average rent, 1-bedroom | $750/month |
| Average rent, 2-bedroom | $950/month |
| Median home price | $160,000 |
| Median household income | $48,000/year |
| Combined sales tax rate | 9.75% |
| Effective property tax rate | 0.65% of value/year |
Local figures are 2026 estimates compiled from the MIT Living Wage Calculator, the C2ER Cost of Living Index, U.S. Census and Zillow housing data, and city and county sources. Verify current figures before relying on them.
The federal SE tax rate is 15.3% (12.4% Social Security plus 2.9% Medicare), the same in Fort Smith as everywhere. It applies to 92.35% of net profit; Social Security stops at $176,100 of net earnings.
Arkansas taxes self-employment income as ordinary income (2% to 4%), so Fort Smith freelancers owe state tax on top of federal.
On $60,000 of net profit in Fort Smith, estimated total tax (SE plus federal plus state) is about $14,641, or roughly $3,660 per quarter.
Fort Smith does not levy a local self-employment or income tax. Business owners should still budget for any required local license.
Business expenses that lower net profit (equipment, software, home office, mileage) reduce both SE tax and income tax. The deductible half of SE tax, self-employed health insurance, and retirement contributions reduce income tax.