Estimate your self-employment tax in Gulfport 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
Gulfport self-employed workers pay federal SE tax and federal income tax, plus Mississippi state income tax (Flat 4.7%). Mississippi exempts the first $10,000 of taxable income and applies a flat 4.7% rate above that threshold. The state has been phasing out its income tax on lower brackets.
| Net Profit | SE Tax | Half-SE Deduction | Total Est. Tax | Per Quarter |
|---|---|---|---|---|
| $30,000 | $4,239 | $2,119 | $5,681 | $1,420 |
| $50,000 | $7,065 | $3,532 | $11,611 | $2,903 |
| $75,000 | $10,597 | $5,299 | $19,646 | $4,912 |
| $100,000 | $14,130 | $7,065 | $29,382 | $7,346 |
| $150,000 | $21,194 | $10,597 | $49,275 | $12,319 |
Single filer, standard deduction. Total tax = SE tax + federal income tax + Mississippi state tax. Estimates only.
Gulfport is the second-largest city in Mississippi and a major Gulf Coast port, with an economy built on shipping, the Port of Gulfport, casino gaming and tourism, healthcare, and a U.S. Navy Seabee base.
| Local Metric | Gulfport (2026 estimate) |
|---|---|
| Metro population | 72,000 |
| County / jurisdiction | Harrison County |
| Cost of living index (US avg = 100) | 82 |
| MIT living wage, single adult | $18.00/hour |
| MIT living wage, one earner supporting a family of four | $37.50/hour |
| Applicable minimum wage | $7.25/hour |
| Average rent, 1-bedroom | $1,050/month |
| Average rent, 2-bedroom | $1,300/month |
| Median home price | $200,000 |
| Median household income | $48,000/year |
| Combined sales tax rate | 7% |
| Effective property tax rate | 0.85% 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 Gulfport as everywhere. It applies to 92.35% of net profit; Social Security stops at $176,100 of net earnings.
Mississippi taxes self-employment income as ordinary income (Flat 4.7%), so Gulfport freelancers owe state tax on top of federal.
On $60,000 of net profit in Gulfport, estimated total tax (SE plus federal plus state) is about $14,576, or roughly $3,644 per quarter.
Gulfport 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.