Finance · Missouri · Tax year 2026
Missouri Self-Employment Tax Calculator 2026
On $100,000 of 2026 self-employment profit, a single Missouri sole proprietor with no other income owes about $25,737: $14,130 of self-employment tax, $8,235 of federal income tax, and $3,373 of Missouri income tax. That is 25.7% of profit, or $6,434 for each quarterly estimated payment.
Against its neighbors, the same $100,000 of profit costs $1,083 more in Illinois and $3,373 less in Tennessee.
- State income tax
- 2% to 4.7%
- Missouri tax on $100,000
- $3,373
- National rank
- #26 highest of 51
- Set aside on $100,000
- 25.7%
- State estimated payments
- Form MO-1040ES
- LLC filing fee
- $50
- State sales tax
- 4.225% + 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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Missouri 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 | Missouri tax | Total | Set aside | Quarterly |
|---|---|---|---|---|---|---|
| $40,000 | $5,652 | $1,775 | $789 | $8,216 | 20.5% | $2,054 |
| $60,000 | $8,478 | $3,559 | $1,658 | $13,696 | 22.8% | $3,424 |
| $80,000 | $11,304 | $5,344 | $2,519 | $19,167 | 24.0% | $4,792 |
| $100,000 | $14,130 | $8,235 | $3,373 | $25,737 | 25.7% | $6,434 |
| $150,000 | $21,194 | $16,413 | $5,615 | $43,222 | 28.8% | $10,806 |
| $250,000 | $29,851 | $36,509 | $10,118 | $76,478 | 30.6% | $19,119 |
Married filing jointly
The same profit, earned by one spouse filing jointly with no other household income.
| Profit | SE tax | Federal income tax | Missouri tax | Total | Set aside | Quarterly |
|---|---|---|---|---|---|---|
| $40,000 | $5,652 | $398 | $86 | $6,135 | 15.3% | $1,534 |
| $60,000 | $8,478 | $1,885 | $913 | $11,276 | 18.8% | $2,819 |
| $80,000 | $11,304 | $3,550 | $1,775 | $16,629 | 20.8% | $4,157 |
| $100,000 | $14,130 | $5,335 | $2,636 | $22,100 | 22.1% | $5,525 |
| $150,000 | $21,194 | $9,795 | $4,858 | $35,848 | 23.9% | $8,962 |
| $250,000 | $29,573 | $25,154 | $9,361 | $64,089 | 25.6% | $16,022 |
How Missouri taxes self-employment income
Missouri starts from federal adjusted gross income (after the deduction for half of self-employment tax), then applies its own deductions, exemptions, and credits.
- Standard deduction: $16,100 single, $32,200 joint, $24,150 head of household
- Top rate: 4.7%; your bracket on $100,000 of profit is 4.7%.
2026 Missouri income tax brackets (all filers)
| Taxable income over | Up to | Rate |
|---|---|---|
| $0 | $1,348 | 0% |
| $1,348 | $2,696 | 2% |
| $2,696 | $4,044 | 2.5% |
| $4,044 | $5,392 | 3% |
| $5,392 | $6,740 | 3.5% |
| $6,740 | $8,088 | 4% |
| $8,088 | $9,436 | 4.5% |
| $9,436 | and up | 4.7% |
Missouri 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 $1,083 more in Illinois and $3,373 less in Tennessee.
| State | State income tax | Total tax | Set aside | vs Missouri |
|---|---|---|---|---|
| Missouri | $3,373 | $25,737 | 25.7% | — |
| Arkansas | $2,951 | $25,316 | 25.3% | −$422 |
| Illinois | $4,456 | $26,820 | 26.8% | +$1,083 |
| Iowa | $2,296 | $24,660 | 24.7% | −$1,077 |
| Kansas | $4,386 | $26,751 | 26.8% | +$1,014 |
| Kentucky | $3,135 | $25,500 | 25.5% | −$237 |
| Nebraska | $3,349 | $25,714 | 25.7% | −$24 |
| Oklahoma | $3,637 | $26,001 | 26.0% | +$264 |
| Tennessee | $0 | $22,365 | 22.4% | −$3,373 |
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 Missouri.
| Profit | Arkansas | Illinois | Iowa | Kansas | Kentucky | Nebraska | Oklahoma | Tennessee |
|---|---|---|---|---|---|---|---|---|
| $40,000 | +$99 | +$906 | −$188 | +$486 | +$395 | +$23 | +$338 | −$789 |
| $60,000 | −$83 | +$957 | −$493 | +$653 | +$176 | −$1 | +$305 | −$1,658 |
| $80,000 | −$256 | +$1,016 | −$789 | +$830 | −$35 | −$16 | +$281 | −$2,519 |
| $100,000 | −$422 | +$1,083 | −$1,077 | +$1,014 | −$237 | −$24 | +$264 | −$3,373 |
| $150,000 | −$657 | +$1,141 | −$1,906 | +$1,364 | −$853 | −$151 | +$113 | −$5,615 |
| $250,000 | −$1,615 | +$1,381 | −$3,205 | +$2,208 | −$2,003 | −$295 | −$79 | −$10,118 |
What's different about Missouri for the self-employed
- Includes Missouri's deduction for a share of federal income tax paid (35% down to 0% depending on income, capped at $5,000 / $10,000 joint).
- Kansas City and St. Louis each charge a 1% earnings tax on residents' wages and self-employment profit. Enter it under "Local income tax rate" if it applies.
- The City of St. Louis levies a 1% earnings tax on residents and on people working in the city, and calendar-year business returns are due April 15; Kansas City, Missouri levies a similar 1% earnings tax, and self-employed residents there file a profits return.
- Missouri's estimated-tax threshold is unusually low: a declaration is required once your expected Missouri tax is $100 or more.
- Forming an LLC online costs $50 versus $105 on paper, and there is no annual report or annual LLC fee afterwards.
Missouri estimated payments and deadlines
Missouri collects its own estimated income tax with Form MO-1040ES, separately from the IRS. Required if your Missouri estimated tax (after credits and withholding) is expected to be $100 or more.
| Installment | Missouri 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 Missouri income tax return is due April 15, 2027.
File and pay through the Missouri Department of Revenue.
LLC fees and sales tax in Missouri
- Forming an LLC: $50 state filing fee.
- Missouri LLCs file no annual report.
- Sales tax: 4.225% 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.
Missouri self-employment tax FAQs
How much should I set aside for taxes if I'm self-employed in Missouri?
For a single filer with no other income, about 22.8% of profit at $60,000, 25.7% at $100,000, and 28.8% at $150,000 for 2026, covering self-employment tax, federal income tax, and Missouri income tax. Enter your own numbers in the calculator for a personal figure.
Does Missouri tax self-employment income?
Yes. Missouri taxes self-employment profit as ordinary income at 2% to 4.7%. Missouri starts from federal adjusted gross income (after the deduction for half of self-employment tax), then applies its own deductions, exemptions, and credits.
When are Missouri estimated tax payments due for 2026?
April 15, 2026, June 15, 2026, September 15, 2026, January 15, 2027, using Form MO-1040ES. Required if your Missouri estimated tax (after credits and withholding) is expected to be $100 or more.
How much does an LLC cost in Missouri?
The state filing fee to form an LLC is $50. Missouri LLCs file no annual report. 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 Missouri's rules from the sources below. Planning estimates, not a return. Last checked 2026-10-08.
- dor.mo.gov/forms/Withholding%20Formula_2026.pdf
- dor.mo.gov/taxation/individual/tax-types/income/year-changes/
- dor.mo.gov/forms/MO-1040%20Print%20Only_2025.pdf
- dor.mo.gov/forms/MO-1040ES_2026.pdf
- revisor.mo.gov/main/OneSection.aspx?section=143.511
- www.sos.mo.gov/CMSImages/Business/fees.pdf
- www.sos.mo.gov/business/faqs
- dor.mo.gov/taxation/business/tax-types/sales-use/
- www.stlouis-mo.gov/government/departments/collector/earnings-tax/