Louisiana Self-Employment Tax Calculator (2026)
Federal self-employment tax, federal income tax and Louisiana state income tax on 1099 income, plus how much to set aside for each estimated payment.
Federal 2026 and Louisiana 2026 data checked against the official publications, last on 2026-09-05 Runs in your browser — nothing you type is sent anywhere, not even when you reload or share the link No sign-up Methodology and data status
- Total tax
- $16,425
- Effective rate
- 22.8%
- Set aside per quarter
- $4,106
- After-tax income
- $55,575
| Breakdown | |
|---|---|
| Net profit (income − expenses) | $72,000 |
| Self-employment tax | $10,173 |
| Social Security (12.4%) | $8,245 |
| Medicare (2.9%) | $1,928 |
| Federal income tax | $4,630 |
| Adjusted gross income | $66,913 |
| Standard deduction | −$16,100 |
| Qualified business income deduction (20%) | −$10,163 |
| Taxable income · marginal rate 12.0% | $40,651 |
| Louisiana income tax | $1,621 |
| Total federal + state | $16,425 |
Local income tax (never in the total above): Louisiana has no parish or municipal income taxes.
Amounts to set aside, not bills: federal $3,701 for each Form 1040-ES installment (Apr 15, Jun 15, Sep 15, Jan 15). Louisiana: $405 per installment on its own schedule. For the safe-harbor amount and payments you have already made, use the quarterly calculator with these inputs.
Louisiana and self-employment income
Louisiana rewrote its income tax for 2025: a single 3% rate replaced the three brackets, the standard deduction rose to $12,500 single / $25,000 joint and head of household ($12,875 / $25,750 for 2026 after the first inflation adjustment), and the old exemptions for dependents were folded into it. Louisiana starts from federal AGI, so the deduction for half of self-employment tax carries over; the 20% QBI deduction and federal income tax are not deductible.
Louisiana rules used by this calculator (2026)
- Louisiana applies a flat 3% rate for 2026.
- Standard deduction: $12,875 single, $25,750 married filing jointly, $25,750 head of household — below the federal $16,100 single / $32,200 joint for 2026.
- Louisiana's earned income credit is 5% of the federal credit, refundable; the calculator applies it.
- Louisiana starts from federal AGI, so the deductible half of self-employment tax reduces state income as well.
- Louisiana has no parish or municipal income taxes.
What a Louisiana freelancer may still owe
- Louisiana requires estimated payments (Form IT-540ES) when you expect to owe $1,000 or more after credits.
- There is no parish or city income tax, but most parishes require an occupational license for a business. Applied here: the refundable Louisiana earned income credit (5% of the federal credit). The refundable child care credit for incomes up to $25,000 is not included.
What Louisiana costs at three levels of profit (2026)
A single filer with no dependents and no other income, taking the standard deduction. The state column is Louisiana's own tax after its deductions, exemptions and credits.
| Net profit | Federal | Louisiana | Total | Effective rate |
|---|---|---|---|---|
| $50,000 | $9,732 | $1,008 | $10,740 | 21.48% |
| $75,000 | $15,495 | $1,705 | $17,200 | 22.93% |
| $100,000 | $22,365 | $2,402 | $24,766 | 24.77% |
At $75,000 of profit, Louisiana takes $1,705 — 9.91% of the total tax bill. Change any input in the calculator above to see your own figures.
How the federal part is worked out
Net profit is 1099 income less business expenses (Schedule C). Self-employment tax is 15.3% of 92.35% of that profit — 12.4% Social Security up to $184,500 of combined wages and earnings, 2.9% Medicare on all of it. Half of that tax, the $16,100 standard deduction ($32,200 joint) and the 20% qualified business income deduction come off before the 2026 brackets are applied; the child tax credit and the earned income credit then reduce what is left, and the refundable parts can offset self-employment tax. The methodology page sets out the full sequence and every rule the calculator leaves out, including how Louisiana's figures are derived.
Quarterly estimated tax deadlines (2026)
If you expect to owe $1,000 or more of federal tax for the year, the IRS expects four estimated payments (Form 1040-ES). Louisiana runs its own estimated-payment schedule with its own threshold (see above); the calculator shows the federal installment and the Louisiana installment separately, and one combined amount to set aside each quarter.
The 2026 dates are April 15, 2026, June 15, 2026, September 15, 2026, January 15, 2027. The federal amount is split into four equal Form 1040-ES installments after any withholding you entered; paying 100% of last year's tax instead (110% above $150,000 of prior-year AGI) also avoids the penalty. The quarterly calculator works that out and subtracts what you have already paid, and the guide to the due dates explains the rule.
Common questions
Does Louisiana tax self-employment income differently from wages?
For state income tax, net profit from self-employment is ordinary income like wages. The self-employment tax itself is federal only; Louisiana does not add a state equivalent.
Is half of self-employment tax really deductible?
Yes, for federal tax. The employer-equivalent half is an adjustment to income on Schedule 1, which lowers your AGI and therefore your federal income tax. It does not reduce the self-employment tax itself.
Does an LLC change these numbers?
For federal income tax and self-employment tax, a single-member LLC taxed as a sole proprietorship follows exactly the calculation shown here. State and local obligations can still differ: an LLC may be a taxable entity for a state's franchise, gross-receipts or excise tax, and may owe registration or licence fees a sole proprietor does not — Louisiana's are listed above. Electing S-corporation status changes the federal arithmetic too (salary plus distributions) and is outside this tool's scope.
What if I moved to Louisiana during the year?
Income earned while you were a resident of another state is taxable there under that state's rules. This calculator assumes all income was earned as a Louisiana resident.
Data sources and status
Federal figures for 2026: verified · last verified 2026-09-05 · the revenue procedures and forms they were read from, with every other data set
Louisiana figures for 2026: verified · last verified 2026-09-08
- Louisiana Department of Revenue : 2026 Form IT-540ES instructions (IT-540ESi): estimated tax worksheet with the 2026 standard deduction $12,875 single / married filing separately and $25,750 joint / head of household / qualifying surviving spouse, and the 3% rate
- Louisiana Department of Revenue : 2026 withholding notice of intent using the same $12,875 / $25,750, computed on a September-to-September CPI-U of about 3.0%, with the Department's caveat that the final amounts 'may differ slightly' once the December-to-December index is applied (the Legislative Fiscal Office's note puts that at about 2.68%, i.e. roughly $12,835 / $25,670)
- R.S. 47:294 as amended by Act 11 of the 2024 Third Extraordinary Session (CPI-U indexation of the standard deduction from 2026)
- Louisiana Department of Revenue : 2025 Form IT-540 line 16 and the Louisiana earned income credit worksheet (federal credit × 5%, refundable); R.S. 47:297.8 (5% for 2019–2030, 3.5% after; unchanged by any 2025 or 2026 act — the repeal and increase bills died in committee)
Louisiana Department of Revenue · How figures are checked · Corrections log
Other states
Paying as you go? The quarterly estimated tax calculator applies the federal safe harbor and subtracts what you have already paid.