2026 tax year · Missouri
Marketplace seller taxes in Missouri
Etsy, eBay, Shopify and the rest report your gross and withhold nothing. The gap between that and what you are taxed on is your costs, in Missouri that gap is worth $7,132 in tax.
Take a driver who grossed $45,000 over 18,000 business miles. After mileage at 74.3 cents and the rest of the stack, worked through on the marketplace seller page $26,775 comes off and $18,225 is left as taxable profit. That profit is what Missouri and the IRS charge against.
What that leaves you owing in Missouri
Missouri uses graduated 2026 income tax brackets topping out at 4.8%, across 8 brackets, on top of federal income tax and self-employment tax.
| Self-employment tax | $2,575 |
| Federal income tax | $67 |
| Missouri income tax | $643 |
| Total tax | $3,285 |
| Effective rate on gross | 7.3% |
Earning more in Missouri
A single filer taking the standard deduction, this work as the only income, the calculator above handles the other filing statuses. Miles rise with earnings, so the deduction rises too, and the effective rate on gross climbs more slowly than it would for someone whose income grew without expenses attached:
| Volume | Gross | Mileage off | Taxable profit | Missouri tax | Total tax | Rate on gross |
|---|---|---|---|---|---|---|
| Part-time | $15,000 | $0 | $15,000 | $499 | $2,618 | 17.5% |
| Steady side income | $45,000 | $0 | $45,000 | $1,837 | $10,417 | 23.1% |
| Full-time | $72,000 | $0 | $72,000 | $3,042 | $17,845 | 24.8% |
Missouri specifics that change the number
Missouri is one of the twelve states that still taxes Social Security benefits, which matters if you are drawing benefits alongside self-employment income.
Selling into and out of Missouri
Income tax follows you: Missouri taxes your profit wherever the buyer was. Sales tax does not. Marketplace facilitator laws make the platform collect and remit sales tax on your behalf in most states, which is why a seller can have customers in all fifty and still file only one income tax return. Selling off-platform is where that stops being true.
On $18,225 of profit, what the states around Missouri would charge:
| State | Its tax | vs Missouri |
|---|---|---|
| Tennessee | No income tax | −$705 |
| Nebraska | $596 | −$108 |
| Arkansas | $633 | −$71 |
| Kentucky | $638 | −$67 |
| Kansas | $649 | −$56 |
| Iowa | $693 | −$12 |
| Oklahoma | $785 | +$80 |
| Illinois | $902 | +$197 |
- Tennessee has no income tax at all, so the same work done there costs $705 less in state tax than it does in Missouri.
- Nebraska would take $108 less, $596 against Missouri's $705.
- Arkansas would take $71 less, $633 against Missouri's $705.
- Kentucky would take $67 less, $638 against Missouri's $705.
- Kansas would take $56 less, $649 against Missouri's $705.
- Iowa would take $12 less, $693 against Missouri's $705.
- Oklahoma would take $80 more, $785 against Missouri's $705.
- Illinois would take $197 more, $902 against Missouri's $705.
Marketplace seller tax questions in Missouri
How much should a Missouri seller set aside?
About 7.3% of gross on the $45,000 example, $3,285 across self-employment tax, federal income tax and $643 to Missouri. In practice that means moving about $73 of every $1,000 payout into a separate account the day it lands, and sending roughly $821 to the IRS each quarter, no platform withholds any of this for you. Set aside from each payout rather than finding it in April.
Does the $45,000 on my 1099-NEC match what Missouri taxes?
No. Missouri taxes profit, not gross. After $26,775 of deductions the taxable figure is $18,225, so the Missouri bill is $643 rather than what gross alone would suggest. The form reports what the platform paid out, it knows nothing about your costs, and no one subtracts them for you. On this example 60% of the gross never becomes taxable income, but only for the seller who kept the records to prove it.