2026 tax year · Mississippi
Marketplace seller taxes in Mississippi
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 Mississippi that gap is worth $6,933 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 Mississippi and the IRS charge against.
What that leaves you owing in Mississippi
Mississippi taxes income at a flat 4% for 2026, applied on top of federal income tax and self-employment tax.
| Self-employment tax | $2,575 |
| Federal income tax | $67 |
| Mississippi income tax | $677 |
| Total tax | $3,320 |
| Effective rate on gross | 7.4% |
Earning more in Mississippi
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 | Mississippi tax | Total tax | Rate on gross |
|---|---|---|---|---|---|---|
| Part-time | $15,000 | $0 | $15,000 | $558 | $2,677 | 17.8% |
| Steady side income | $45,000 | $0 | $45,000 | $1,673 | $10,252 | 22.8% |
| Full-time | $72,000 | $0 | $72,000 | $2,677 | $17,480 | 24.3% |
Mississippi specifics that change the number
On the 2026 rate itself: phasing down toward 0% if revenue triggers met.
Selling into and out of Mississippi
Income tax follows you: Mississippi 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 Mississippi would charge:
| State | Its tax | vs Mississippi |
|---|---|---|
| Tennessee | No income tax | −$729 |
| Louisiana | $240 | −$490 |
| Arkansas | $633 | −$96 |
| Alabama | $871 | +$142 |
- Tennessee has no income tax at all, so the same work done there costs $729 less in state tax than it does in Mississippi.
- Louisiana would take $490 less, $240 against Mississippi's $729.
- Arkansas would take $96 less, $633 against Mississippi's $729.
- Alabama would take $142 more, $871 against Mississippi's $729.
Marketplace seller tax questions in Mississippi
How much should a Mississippi seller set aside?
About 7.4% of gross on the $45,000 example, $3,320 across self-employment tax, federal income tax and $677 to Mississippi. In practice that means moving about $74 of every $1,000 payout into a separate account the day it lands, and sending roughly $830 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 Mississippi taxes?
No. Mississippi taxes profit, not gross. After $26,775 of deductions the taxable figure is $18,225, so the Mississippi bill is $677 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.